FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection...

50
100 0.05 0.10 0.15 0.20 0.30 0.35 0.40 0.50 0.60 0.75 1.00 1.25 1.50 2.00 2.50 3.00 4.00 5.00 Narrow Medium Wide GOOD FAIR POOR Concrete Crack Widths (mm) Hair Line 10 1.0 2.5 5.0 6.0 7.5 10.0 12.5 Light Medium Severe GOOD FAIR POOR Asphalt (Wearing Surface) Crack Widths (mm) 5 10 15 0 1 2 3 4 6 7 8 9 11 12 13 14 16 17 FIELD INSPECTION GUIDE Apr 2008

Transcript of FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection...

Page 1: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

100

0.050.100.150.200.300.350.400.500.600.751.00

1.25

1.50

2.00

2.50

3.00

4.00

5.00

Narrow Medium Wide

GOOD FAIR POORConcrete Crack Widths (mm)

HairLine

10

1.0

2.5

5.0

6.0

7.5

10.0

12.5

LightMediumSevere

GOODFAIRPOORAsphalt (Wearing Surface) Crack Widths (mm)

510

150

12

34

67

89

1112

1314

1617

1

FIELD INSPECTION GUIDE

Apr 2008

Page 2: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

2

Suggestions, comments, and requests for changes or revisions to the Field Guide or inquir-ies about training sources should be directed to: Ministry of Transportation, Ontario Engineering Standard Branch Bridge Office Bridge Evaluation and Inspection Group 301 St. Paul Street, 2nd Floor St. Catharines, Ontario L2R 7R4 Tel: (905) 704-2406 Fax: (905) 704-2060

Apr 2008

99

Page 3: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

98

FORMS

3

PREFACE The “Field Inspection Guide” is a condensed version of the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection procedures, material defects, condition states, maintenance needs and perform-ance deficiencies. References to the main manual are also made in this Field Guide so that the inspector can obtain more comprehensive information, if required.

Page 4: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

4

TABLE OF CONTENTS

Page 1) STRUCTURAL INSPECTIONS

1. Inspection Objectives 5 2. Inspection Accuracy 5 3. Additional Investigations 6 4. Site Inspection 6 5. Post Inspection Procedures 8

2) HELPFUL HINTS 1. Condition 10 2. Excellent & Good 11 3. Recommended Work 13 4. Performance Deficiencies 15 5. Maintenance 16

APPENDIX A—MATERIAL DEFECTS 17 1. Concrete Defects 18 2. Steel/Aluminum Defects 24 3. Wood Defects 30 4. Masonry Defects 32 6. Asphalt Defects 34 7. Coatings 42

APPENDIX B - ELEMENT LIST 49

APPENDIX C - CONDITION STATE TABLES 52

APPENDIX D—PERFORMANCE

DEFICIENCIES & MAINTENANCE 77

APPENDIX E—OSIM FORMS 89

TABLE OF CONTENTS

STR

UC

T H

INTS

D

EFEC

TS

ELEM

ENT

CO

ND

ITIO

N

DEF

ICIE

NC

IES

FOR

MS

97

FORMS

Page 5: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

96

FORMS

5

1. STRUCTURAL INSPECTIONS 1.1 INSPECTION OBJECTIVES (Part 1, Sect. 1.2) The goal of the structural inspection is to ensure, within an economic framework, an acceptable standard for structures in terms of public safety, comfort and convenience. The main objectives are to:

• maintain structures in a safe condition • prolong the life of structures • identify maintenance & repair needs • provide the basis for structure

management 1.2 INSPECTION ACCURACY (Part 1, Sect. 1.3) In order to achieve the inspection objectives and adequate accuracy, the inspector should spend at least 2 hours at a typical bridge site to adequately assess the condition of all elements. The inspection should be a visual inspection per-formed “Close enough to determine the element condition”, and generally conducted “within arms length” of the element. In some cases it may be possible to inspect a por-tion of the bridge close-up and then estimating the condition of the remaining inaccessible parts by visually comparing them to the partial close-up in-spection. If this is done, periodic Enhanced OSIM inspections must be done to closely inspect all components as described in Part 1, Section 1.3.2 of the OSIM. Additional equipment should be used to facilitate inspection, when necessary (Bridgemaster, bucket truck, ladder, etc).

STRUCT

Page 6: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

6

Additional specialized testing (NDT, etc) should be recommended for critical structures (fatigue prone, fracture critical, hangers, etc) 1.3 ADDITIONAL INVESTIGATIONS (Part 1– Clause 1.3.4) If during a detailed visual inspection, the inspector feels that more detailed information is needed, specialized inspections (within a certain timeframe*)can be requested. Some of these investigations are:

• Detailed Deck Condition Survey • Non-destructive Delamination Survey

of Asphalt Covered Decks • Substructure Condition Survey • Detailed Coating Condition Survey • Underwater investigation • Fatigue investigation • Seismic investigation • Structure evaluation • Monitoring, etc.

* Normal timeframe is within 2 years 1.4 SITE INSPECTION (Part 2-Clause 1.5.2) The inspector shall: • Arrange for special equipment/traffic

control and safety devices, as required for site.

• Complete an overview inspection of the site

to: ⇒ Assess the overall integrity of the

structure and identify areas where more detailed examination may be required

⇒ Observe the bridge under truck loading and identify any abnormal flexibility, deflections or noises (rattling or vibration

STRUCT

95

FORMS

Page 7: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

94

FORMS

7

⇒ of members) ⇒ Look for abnormal deflections, settlements or

rotations by looking along the rail or barrier wall or other members

⇒ Identify obstacles that may either interfere with the inspection or indicate a need for additional special equipment.

• Determine the quantities in each condition state

based on the severity of material defects in the appropriate units (m2, each, etc.), for each element. Details of condition states and material defects are included in Appendix “A” and “C”. The element list is included in Appendix “B” and the OSIM form for recording information is included in Appendix “E”.

• Determine the performance deficiencies,

maintenance needs, recommended work and time frame for work for each element. Details of these are included in the Appendix “D” of this Guide

• Take photographs to adequately describe the

structure and the defects found including all areas of POOR.

• Update element quantities/dimensions if

required. • Correct missing/erroneous inventory data

STRUCT

Page 8: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

8

1.5 POST INSPECTION PROCEDURES (Part 2 - Clause 1.5.3) The inspector shall: • Ensure that all inspection equipment and

temporary traffic control devices are removed from the site and the site is left in workmanlike order

• Ensure the appropriate follow-up action is taken (notify bridge owner immediately) for any critical structural defects or deficiencies (i.e. fatigue cracks in steel, imminent deck punch through, etc.) and all other unsafe conditions that are discovered in the field.

• Submit the Maintenance Needs list to the maintenance crew for action

• Ensure additional investigations are initiated in the timeframe recommended

• Write all necessary follow-up correspondence and reports

STRUCT

93

FORMS

Page 9: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

92

FORMS

9

Page 10: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

10

2. HELPFUL HINTS (Part 2, Section 4)

1. CONDITION • First look for areas of POOR

• Concrete ⇒ Spalls, delaminations, severe

scaling, wide cracks (4m=1 sq.m defect area)

• Steel ⇒ More than 10% section loss,

cracks and deformations • Actual inspection quantity (e.g. sq.m.)

should be used for elements in Poor condition—not percent.

• Next, look for areas of FAIR

• Concrete ⇒ Medium defects (medium scaling,

medium cracks, etc.) • Steel

⇒ 1% to 10% section loss • Each Area of Poor (except for very

large areas) should generally have an equal area of associated Fair sur-rounding it.

• Remainder of areas probably in Good or Excellent Condition. • Actual Good or Excellent depends

on visual inspection; however, age of structure can be used as a guide, depending on environmental expo-sure of element (see section 2.2 of this guide).

• Similar guidance based on age does not exist for the transition from Good to Fair Condition. ⇒ Fair is determined by visual iden-

tification of defects.

HINTS

91

FORMS

Page 11: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

90

FORMS

11

2. EXCELLENT AND GOOD

• All materials must begin in the Excellent condition state

• Once any defect is visible, it drops to the Good condition state

• The defects may not be visible from a distance, but are from close-up.

• Guidance is provided below for the age of compo-nent when transition* from Excellent to Good is expected:

• Concrete, ACR Steel, Coated Steel, Coating: • Severe—5 years • Moderate—15 years • Benign—25 years

* Transition can be spread over a few inspections.

• Defects in Good condition state include (see Tables in Appendix C for complete list):

• ACR Steel

• First signs of patina flaking

• Coated Steel • First signs of surface rust • First signs of coating lifting from

steel • Re-coated steel that had rust previ-

ously • Coating

• First signs of adhesion or coating related defects

• Concrete

• Hairline and Narrow cracks • Surface carbonization • Light scaling • Other light defects

HINTS

Page 12: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

12

HINTS

Examples of Environments

Severe Moderate Benign

Exposed Concrete Deck

Concrete Deck with wa-terproofing

Exterior Soffit Interior Soffit

Railings and inside face of Barrier Walls

Outside face of barrier wall

Abutment in splash zone

Abutment at expansion joint

Abutment with no joint (integral abutment)

Pier in splash zone

Pier at expan-sion joint

Pier with no joint (where deck con-tinuous)

End Portion of Beams (at joints)

Remainder of Beams

Joints

89

OSIM FORMS (Part 2, Section 7)

APPENDIX E

Page 13: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

88 13

3. RECOMMENDED WORK (Part 2, Sect. 7)

Work on Element Recommended work

- Must be consistent with condition of element. - Must be used for elements that cause a bridge to

be placed on a capital construction program, typi-cally the 5 main elements listed below.

- Can be used for other elements as required. - Must not be used for work that is carried out as

maintenance. - Must not be used for additional investigations or

functional deficiencies. Recommended work on an element can be either:

- “Rehabilitation” - “Replacement”

The timeframe for the work is either:

- “1 to 5 years”, - ”6 to 10 years”

Typically, the 5 main elements require repair in 1 to 5 years when: Deck Top 10% to 20% Poor Deck Soffit 5% to 15% Poor Barrier Wall 15% to 30% Poor Expansion Joint 15% to 25% Poor Girders 5% to 10% Poor

o Sometimes, a lower percentage of Poor may also trigger a rehab for critical ele-ments.

o If there are immediate safety concerns with some elements, a Structural Mainte-nance item should be recorded.

HINTS

Page 14: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

14

Work on Structure Work on structure is only required when there is enough to warrant placing the bridge on the capital construction program. Recommended work on the structure can be either:

- “Minor Rehabilitation” that include work on ele-ments other than the deck (i.e. barriers, bear-ings, etc.)

- “Major Rehabilitation” that include work to the deck (i.e. patch-waterproof-pave, overlay, etc.) plus possibly other elements.

- “Replacement” of entire structure. The timeframe for the work is either:

- “1 to 5 years”, - ”6 to 10 years”

HINTS

87

M

aint

enan

ce N

eed

Des

crip

tion

8 R

epai

r of B

ridge

Con

cret

e Th

e re

pair

of a

ll co

ncre

te c

ompo

nent

s of

the

stru

ctur

e, s

uch

as c

urbs

, ped

estri

an w

alks

, con

cret

e ha

ndra

il po

sts,

par

apet

wal

ls, a

butm

ents

and

pie

rs, e

xcep

t whe

n th

e re

pair

is m

ore

dire

ctly

ass

ocia

ted

with

one

of t

he o

ther

def

ined

brid

ge m

aint

enan

ce o

pera

tions

or th

e qu

antit

y of

repa

ir is

exc

essi

ve fo

r a

mai

nten

ance

ope

ratio

n.

9 R

epai

r of B

ridge

Tim

ber

The

repa

ir of

all

brid

ge ti

mbe

r, in

clud

ing

the

repa

ir of

tim

ber d

ecks

on

stee

l brid

ges.

10

Baile

y Br

idge

s –

Inst

alla

tion,

M

aint

enan

ce a

nd R

emov

al

The

inst

alla

tion,

rem

oval

, rep

air a

nd m

aint

enan

ce w

ork

that

is u

niqu

e to

Bai

ley

Brid

ges,

but

not

in

clud

ing

wor

k de

fined

by

othe

r stru

ctur

al m

aint

enan

ce o

pera

tions

. 11

An

imal

/Pes

t Con

trol

The

inst

alla

tion

and

mai

nten

ance

of a

nim

al/p

est c

ontro

l dev

ices

und

er b

ridge

stru

ctur

es s

uch

as

pige

on-p

roof

ing.

12

Br

idge

Sur

face

Rep

air

The

repa

ir of

brid

ge s

urfa

ces

such

as

poth

ole

patc

hing

.

13

Eros

ion

Con

trol a

t Brid

ges

Ope

ratio

ns p

erfo

rmed

to p

reve

nt o

r rep

air d

amag

e du

e to

ero

sion

, suc

h as

sco

ur a

t abu

tmen

ts a

nd

arou

nd p

iers

, and

was

hout

s on

slo

pes.

Inc

lude

s re

mov

al o

f obs

truct

ions

to w

ater

flow

, cle

arin

g of

ve

geta

tion

grow

th, e

xten

sion

of d

eck

drai

ns, e

tc.

14

Con

cret

e Se

alin

g Th

e se

alin

g or

trea

tmen

t of b

ridge

con

cret

e su

rface

s w

ith a

ppro

ved

mat

eria

ls, a

s w

ell a

s th

e pr

epar

atio

n of

sur

face

s pr

ior t

o tre

atm

ent.

15

Rou

t and

Sea

l – C

oncr

ete

and

Asph

alt P

avem

ent o

n Br

idge

Dec

ks Th

e ro

utin

g of

join

ts a

nd/o

r cra

cks

in c

oncr

ete

and

asph

alt p

avem

ent a

nd th

e fil

ling

of s

ame

with

join

t fil

lers

or r

ubbe

rized

asp

halti

c se

alin

g co

mpo

unds

.

16

Brid

ge D

eck

Dra

inag

e Th

e re

pair,

mai

nten

ance

, and

repl

acem

ent o

f brid

ge d

eck

drai

ns.

Incl

udes

ste

amin

g an

d ca

lciu

m

appl

icat

ion

to u

ntha

w.

17

Scal

ing

(Loo

se C

oncr

ete

or A

CR

St

eel)

The

rem

oval

of l

oose

del

amin

ated

con

cret

e or

del

amin

ated

pat

ina

of A

CR

ste

el g

irder

s th

at p

ose

a ris

k as

a fa

lling

haza

rd.

18

Oth

er M

aint

enan

ce

A m

aint

enan

ce a

ctiv

ity th

at d

oes

not f

it in

to a

ny o

ther

cat

egor

y.

Page 15: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

86

M

aint

enan

ce N

eed

Des

crip

tion

1 Li

ft an

d Sw

ing

Brid

ge

Mai

nten

ance

Th

e op

erat

ion,

mai

nten

ance

and

repa

ir ac

tiviti

es th

at a

re u

niqu

e to

lift

and

swin

g br

idge

st

ruct

ures

, inc

ludi

ng a

ll m

echa

nica

l equ

ipm

ent a

nd e

lect

rical

dev

ices

suc

h as

sig

nals

, fla

sher

s,

light

ing,

nav

igat

ion

light

s, e

tc.,

but n

ot in

clud

ing

wor

k de

fined

by

othe

r stru

ctur

al m

aint

enan

ce

oper

atio

ns.

2 B

ridge

Cle

anin

g Th

e cl

eani

ng o

f brid

ge c

ompo

nent

s in

clud

ing:

1)

Was

hing

of b

earin

gs, b

earin

g se

ats,

trus

s m

embe

rs, e

tc.

2)S

wee

ping

of b

ridge

dec

ks, c

urbs

and

gut

ters

. 3)

Rem

oval

of d

ebris

from

exp

ansi

on jo

ints

. 4)

Deb

ris p

ick-

up o

r min

or re

mov

al o

f agg

rega

te.

5)C

lean

ing

of c

atch

-bas

ins,

man

-hol

es a

nd d

eck

drai

ns.

3

Brid

ge R

ailin

g S

yste

m

Mai

nten

ance

Th

e pa

intin

g, re

pair

and/

or re

plac

emen

t of m

etal

han

drai

ls, r

ailin

g sy

stem

s an

d po

sts,

as

wel

l as

touc

h-up

pai

ntin

g ac

tiviti

es.

4 P

aint

ing

Ste

el B

ridge

Stru

ctur

es

The

prep

arat

ion

(san

dbla

stin

g, e

tc.)

and

pain

ting

of s

truct

ural

ste

el.

Incl

udes

han

drai

ls w

hen

perfo

rmed

as

part

of a

n ov

eral

l brid

ge p

aint

ing

oper

atio

n.

5 B

ridge

Dec

k Jo

int R

epai

r Th

e re

pair

and/

or re

plac

emen

t of e

xpan

sion

and

/or f

ixed

dec

k jo

ints

and

end

dam

s.

6 B

ridge

Bea

ring

Mai

nten

ance

Th

e ad

just

men

t, re

pair

and/

or re

plac

emen

t of b

ridge

bea

rings

. In

clud

es a

ll w

ork

dire

ctly

as

soci

ated

with

brid

ge b

earin

gs.

7 R

epai

r to

Stru

ctur

al S

teel

Th

e re

pair

of a

ll st

ruct

ural

ste

el, i

nclu

ding

repa

ir or

repl

acem

ent o

f ste

el c

ompo

nent

s, b

olts

and

fa

sten

ers.

Tabl

e 6.

1: M

aint

enan

ce N

eeds

(Par

t 2, S

ectio

n 6)

DEFICIENCIES

15

4. PERFORMANCE DEFICIENCIES (Part 2, Section 6)

A Performance Deficiency should be recorded if an element’s ability to perform its intended function is in question.

• “Suspected” Performance Deficiencies are re-corded for each element

• Potential Deficiencies categorized as “Suspected” since often difficult to ascertain the significance of defect at the time of the inspec-tion

• “Suspected” Performance Deficiencies usually indicate some follow-up action is required (strength evaluation, specialized inspection, monitoring, etc.)

• Standard List of possible deficiencies are shown on the inspection form (see Appendix D and Appendix E).

• Follow-up action can be addressed under “Additional Investigations” or “Special Notes” for the bridge.

Example: A severely corroded girder at the midspan

• Can the girder safely carry traffic loading? • Inspector cannot determine this in the field • Inspector can only indicate “Suspected” Per-

formance Deficiency for a follow-up strength evaluation

• Only then can decision be made whether bridge needs strengthening or posting

HINTS

Page 16: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

16

5. MAINTENANCE (Part 2, Section 6) There are two types of maintenance work that are performed: Structural Maintenance Work - Is work to improve the structural capacity of a

specific element and not part of a larger con-struction contract

- Is generally only done to one element - Include emergency repairs and holding strat-

egy repairs - Is work that requires engineering drawings to

complete the work. Routine Maintenance Work - Is for preventative maintenance and minor re-

pair work that can be performed without engi-neering direction.

- Is usually carried out by bridge crews or road maintenance contractors

For all Maintenance work a standard list of mainte-nance needs are shown on the inspection form (see Appendix D, or Appendix E). The mainte-nance needs list should be forwarded to mainte-nance crews for action, with urgent items flagged for immediate attention.

HINTS

85

15 U

nsta

ble

Em

bank

men

ts

Em

bank

men

ts •

Set

tlem

ent o

f em

bank

men

t, sl

ope

prot

ectio

ns o

r app

roac

h ro

adw

ay;

•S

lidin

g fa

ilure

of t

he to

e or

slo

pes

of

the

emba

nkm

ent;

•S

urfa

ce o

r dee

p se

ated

slip

s;

Loss

of e

mba

nkm

ent m

ater

ial f

rom

un

der f

ound

atio

ns.

Geo

tech

nica

l inv

estig

atio

n

16 O

ther

14 U

nder

min

ing

of

Foun

datio

n S

tream

s &

Wat

erw

ays

or

Foun

datio

n

•Lo

ss o

f mat

eria

l sup

porti

ng

foun

datio

ns d

ue to

sco

ur o

r ero

sion

.

Und

erw

ater

Inve

stig

atio

n

DEFICIENCIES

Page 17: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

84

Su

spec

ted

Perfo

rman

ce

Ele

men

t Nam

e (E

xam

ples

) D

escr

iptio

n of

Def

icie

ncy

Pos

sibl

e Fo

llow

-up

Act

ion

13 F

lood

ing/

Cha

nnel

B

lock

age

Stre

ams

&

Wat

erw

ays

•Th

e in

spec

tor s

houl

d lo

ok fo

r the

follo

win

g ev

iden

ce o

f hig

h w

ater

leve

ls, i

nade

quat

e op

enin

g at

the

stru

ctur

e an

d ad

vers

e af

fect

s on

ot

her c

ompo

nent

s of

the

stru

ctur

e:

•B

endi

ng o

r buc

klin

g of

the

low

er c

hord

of s

teel

tru

sses

in th

e do

wns

tream

dire

ctio

n by

ice

or

heav

y de

bris

; •

Ice

scar

s an

d da

mag

e to

sub

stru

ctur

es;

•C

oars

e de

bris

, suc

h as

bra

nche

s an

d sm

all

trees

, cau

ght o

r wed

ged

unde

r the

su

pers

truct

ure;

Fine

deb

ris, s

uch

as g

rass

and

twig

s, o

n fe

nces

, tre

es, e

mba

nkm

ents

, stru

ctur

es, e

tc.;

•W

ash

lines

on

bare

soi

l slo

pes;

Mud

or s

ilt d

epos

ited

on e

mba

nkm

ents

; •

Mar

ks a

nd s

tain

s on

stru

ctur

es.

•D

eter

min

e hi

stor

ical

fre

quen

cy o

f flo

odin

g an

d re

cord

ed w

ater

leve

ls a

nd

com

pare

to c

urre

nt h

igh

wat

er e

leva

tion

•M

onito

r wat

er e

leva

tions

th

roug

hout

yea

r •

Per

form

hyd

rolo

gy s

tudy

Tabl

e 5.

1: S

uspe

cted

Per

form

ance

Def

icie

ncie

s (P

art 2

, Se

ctio

n 5)

DEFICIENCIES

17

APPENDIX A

MATERIAL DEFECTS

This appendix contains a simplified table for material defects and condition states by combining the information from OSIM Part 1, Section 2 and Part 2, Section 4

TABLES 1. Concrete 2. Steel/Aluminum 3. Wood 4. Masonry 5. Asphalt Wearing Surface 6. Asphalt Covered Deck 7. Coating

DEFECTS

Page 18: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

18

1.

CO

NC

RET

E (P

art 1

, Sec

t. 2.

2 an

d Pa

rt 2

, Tab

le 4

.5)

DEF

ECT

CO

ND

ITIO

N S

TATE

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R

(S

EVER

E / V

ERY

SEVE

RE)

Sc

alin

g Lo

cal f

laki

ng/lo

ss o

f sur

face

por

tion

of c

oncr

ete

or m

orta

r due

to fr

eeze

-thaw

U

p to

5 m

m d

epth

6

- 10

mm

dep

th

> 10

mm

dep

th

Dis

inte

gra-

tion

Phy

sica

l det

erio

ratio

n or

bre

akin

g do

wn

of th

e co

ncre

te in

to s

mal

l fra

gmen

ts

All

Eros

ion

Det

erio

ratio

n of

con

cret

e br

ough

t abo

ut b

y w

ater

-bor

ne s

and

and

grav

el p

artic

les

scru

bbin

g ag

ains

t sur

face

s

A

ll

Cor

rosi

on o

f R

einf

orce

-m

ent

Det

erio

ratio

n of

rein

forc

emen

t by

elec

troly

sis

Due

to d

rain

s/ch

airs

R

ust s

tain

s fr

om re

info

rcem

ent

Expo

sed

rein

forc

e-m

ent w

ith ru

st

Del

amin

a-tio

n D

isco

ntin

uity

of t

he s

urfa

ce c

oncr

ete

whi

ch is

sub

stan

tially

, but

not

com

plet

ely

de

tach

ed fr

om c

oncr

ete

belo

w o

r abo

ve it

.

A

ll

DEFECTS

83

DEFICIENCIES

10 S

urfa

ce P

ondi

ng

Sid

ewal

k,

Wea

ring

surfa

ce

•W

ater

pon

ding

on

side

wal

ks/w

earin

g su

rface

, as

it pr

esen

ts

a sa

fety

haz

ard,

esp

ecia

lly if

allo

wed

to fr

eeze

;

•Fi

ll in

dep

ress

ion

with

asp

halt

(Mai

nten

ance

O

pera

tion)

11 D

eck

Dra

inag

e D

rain

age

Sys

tem

Dec

k dr

ains

not

pro

vide

d w

here

nec

essa

ry, o

r hav

e in

adeq

uate

siz

e of

ope

ning

; •

Dec

k dr

ains

and

dra

inag

e sy

stem

s im

prop

erly

con

stru

cted

with

in

adeq

uate

slo

pes

or s

harp

dire

ctio

nal c

hang

es;

•D

rain

age

syst

em p

lugg

ed o

r par

tially

plu

gged

and

not

allo

win

g fo

r fre

e an

d un

obst

ruct

ed fl

ow o

f wat

er;

•D

rain

age

outle

ts d

isch

argi

ng d

irect

ly o

nto

stru

ctur

e co

mpo

nent

s or

ro

adw

ays

belo

w th

e de

ck;

•D

rain

age

outle

ts d

isch

argi

ng d

irect

ly o

nto

emba

nkm

ent w

ithou

t pr

oper

pro

visi

on fo

r col

lect

ing,

cha

nnel

ling

and

cont

rolli

ng o

f di

scha

rge

with

spl

ashp

ads,

spi

llway

s or

gut

ters

; •

Inad

equa

te p

rovi

sion

for d

rain

age

at th

e st

ruct

ure

appr

oach

es.

•R

evie

w d

eck

drai

nage

re

quire

men

ts

12 S

lippe

ry S

urfa

ces

Dec

k To

p •

Loss

in ri

ding

com

fort

and

pote

ntia

l los

s of

veh

icle

con

trol

due

to d

efec

ts in

the

com

pone

nt m

ater

ial;

•Lo

ss o

f pro

tect

ion

to u

nder

lyin

g su

rface

s du

e to

def

ects

in

the

wea

ring

surfa

ce m

ater

ials

;

•R

esur

face

pro

blem

ar

ea (M

aint

enan

ce

Ope

ratio

n)

Page 19: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

82

DEFICIENCIES

Su

spec

ted

Perf

orm

ance

El

emen

t Nam

e (E

xam

ples

) D

escr

iptio

n of

Def

icie

ncy

Poss

ible

Fol

low

-up

Actio

n

9 R

ough

Rid

ing

Sur

face

W

earin

g S

urfa

ce,

App

roac

h sl

abs

•R

ough

app

roac

hes,

set

tlem

ent o

r con

solid

atio

n of

ap

proa

ch e

mba

nkm

ents

, or d

eter

iora

tion

of th

e ap

proa

ch s

labs

or r

amps

, res

ultin

g in

veh

icle

s "b

ounc

ing"

ont

o th

e br

idge

. In

addi

tion

to a

pply

ing

exce

ssiv

e dy

nam

ic lo

adin

g to

the

brid

ge, t

his

may

al

so re

sult

in d

iffic

ulty

in m

aint

aini

ng v

ehic

le c

ontro

l •

Dep

ress

ions

and

cra

cks

in th

e ro

adw

ay p

avem

ent

abov

e cu

lver

ts a

nd s

oil-s

teel

stru

ctur

es;

•S

moo

th o

ut a

spha

lt at

ap

proa

ch (M

aint

enan

ce

oper

atio

n)

•S

treng

th e

valu

atio

n

8 Pe

dest

rian/

ve

hicu

lar h

azar

d Ar

mou

ring/

re

tain

ing

devi

ces,

Si

dew

alk

•V

ertic

al o

r hor

izon

tal m

isal

ignm

ent a

cros

s th

e jo

int;

•S

ever

e m

ater

ial d

efec

ts (e

.g. S

pallin

g)

•H

oriz

onta

l, ve

rtica

l or r

otat

iona

l dis

plac

emen

ts in

cu

rbs

and

side

wal

ks a

s th

ey a

re h

azar

dous

to

pede

stria

n an

d ve

hicu

lar s

afet

y, a

nd p

rese

nt

obst

ruct

ions

to s

now

plo

ws.

Inad

equa

te c

urb

heig

ht, o

r los

s of

cur

b he

ight

for

side

wal

ks d

ue to

the

plac

emen

t of a

n ad

ditio

nal

laye

r of w

earin

g su

rface

or d

eck

over

lay

•R

emov

e ob

stru

ctio

n (M

aint

enan

ce o

pera

tion)

Rev

iew

Cod

e re

quire

men

ts

for c

urb

heig

ht

Tabl

e 5.

1: S

uspe

cted

Per

form

ance

Def

icie

ncie

s (P

art 2

, Sec

tion

5)

19

1.

CO

NC

RET

E

DEF

ECT

CO

ND

ITIO

N S

TATE

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R

(S

EVER

E / V

ERY

SEVE

RE)

Spal

ling

Frag

men

ts w

hich

hav

e be

en d

etac

hed

from

a la

rger

con

cret

e m

ass

All

Cra

ckin

g Li

near

frac

ture

whi

ch e

xten

ds p

artly

or c

ompl

etel

y th

roug

h th

e m

embe

r.

< 0.

3 m

m

0.3

- 1.0

mm

wid

e >

1.0

mm

wid

e

Alk

ali-

Agg

rega

te

Rea

ctio

n

Aggr

egat

es re

act a

dver

sely

with

the

alka

lies

in c

emen

t to

prod

uce

a hi

ghly

exp

ansi

ve a

lkal

i-si

lica

gel

Hai

rline

pat

tern

cra

cks

< 0.

1 m

m

Nar

row

pat

tern

cra

cks

0.1

- 0.3

mm

wid

e M

ediu

m-w

ide

patte

rn

crac

ks

> 0.

3 m

m w

ide

DEFECTS

Page 20: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

20

1.

CO

NC

RET

E

DEF

ECT

CO

ND

ITIO

N S

TATE

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R

(S

EVER

E an

d VE

RY

SEVE

RE)

Hon

eyco

mbi

ng

Pro

duce

d du

e to

the

impr

oper

or i

ncom

plet

e vi

brat

ion

of th

e co

ncre

te w

hich

resu

lts in

vo

ids

bein

g le

ft in

the

conc

rete

whe

re th

e m

orta

r fai

led

to c

ompl

etel

y fil

l the

spa

ces

betw

een

the

coar

se a

ggre

gate

par

ticle

s

Hol

es u

p to

25

mm

dia

. H

oles

25

- 50

mm

dia

. H

oles

mor

e th

an

50 m

m d

ia.

Pop-

Out

s

Sha

llow

con

ical

dep

ress

ions

resu

lting

from

the

brea

king

aw

ay o

f sm

all p

ortio

ns o

f the

co

ncre

te s

urfa

ce, d

ue to

the

expa

nsio

n of

som

e ag

greg

ates

due

to fr

ost a

ctio

n.

Hol

es u

p to

25

mm

dia

. H

oles

25

- 50

mm

dia

. H

oles

mor

e th

an

50 m

m d

ia.

DEFECTS

81

Su

spec

ted

Perf

orm

ance

D

efic

ienc

y

Elem

ent N

ame

(Exa

mpl

es)

Des

crip

tion

of D

efic

ienc

y Po

ssib

le F

ollo

w-u

p Ac

tion

5 S

eize

d Be

arin

gs

Bea

rings

Bin

ding

or j

amm

ing

of e

xpan

sion

or r

otat

iona

l co

mpo

nent

s du

e to

cor

rosi

on, l

ack

of lu

bric

atio

n or

da

mag

e to

slid

ing

surfa

ces;

•S

treng

th e

valu

atio

n to

ac

coun

t for

cha

nge

in

artic

ulat

ion

•Lu

bric

ate

Bea

rings

(Mai

nten

ance

Ope

ratio

n)

6 B

earin

g no

t un

iform

ly lo

aded

/un

stab

le

Ela

stom

eric

Bea

ring,

R

ocke

r Bea

ring,

etc

Non

-uni

form

con

tact

of b

earin

g su

rface

s w

ith e

ach

othe

r or w

ith b

earin

g se

at

•E

xces

sive

incl

inat

ions

of b

earin

gs

•R

egul

ar m

onito

ring

of b

earin

g m

ovem

ents

7 Ja

mm

ed e

xpan

sion

Jo

int

Arm

ourin

g/

reta

inin

g de

vice

s •

Inad

equa

te jo

int g

ap to

acc

omm

odat

e an

ticip

ated

fu

rther

mov

emen

t; •

Sur

faci

ng m

ater

ials

hav

e ja

mm

ed in

the

join

ts d

urin

g re

surfa

cing

of d

eck;

Des

ign

or c

onst

ruct

ion

prob

lem

s no

t allo

win

g pr

oper

m

ovem

ent o

f mul

ti-se

al jo

ints

.

•R

egul

ar m

onito

ring

of d

eck

mov

emen

ts

•C

lean

out

gap

(Mai

nten

ance

op

erat

ion)

DEFICIENCIES

Page 21: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

80

DEFICIENCIES

Su

spec

ted

Perf

orm

ance

D

efic

ienc

y

Elem

ent N

ame

(Exa

mpl

es)

Des

crip

tion

of D

efic

ienc

y Po

ssib

le F

ollo

w-u

p Ac

tion

4 C

ontin

uing

M

ovem

ents

A

butm

ent W

all,

Pie

r, D

eck

Top,

B

earin

gs, e

tc

•O

ut o

f plu

mb

of a

butm

ent w

alls

, pile

s, p

iers

or o

ther

co

mpo

nent

s su

ppor

ted

on th

em;

•Ti

lting

or b

ulgi

ng o

f Ret

aine

d S

oil S

yste

m (R

SS

) wal

ls

•U

nusu

al o

r une

xpec

ted

subs

truct

ure

mov

emen

ts o

ccur

ring

durin

g th

e pa

ssag

e of

hea

vy v

ehic

les

over

the

brid

ge;

•Ta

perin

g or

mis

alig

nmen

t of c

rack

s an

d jo

ints

in fo

unda

tions

, ab

utm

ents

, pie

rs o

r oth

er c

ompo

nent

s su

ppor

ted

on th

em;

•S

udde

n dr

ops

or k

inks

in th

e st

ruct

ure

prof

ile o

ver p

iers

or

abut

men

t wal

ls w

hen

sigh

ting

alon

g ra

ilings

or b

eam

line

s;

•A

bnor

mal

ly la

rge

or s

mal

l ope

ning

s or

mis

alig

nmen

t of d

eck

expa

nsio

n jo

ints

at a

butm

ents

and

pie

rs;

•A

bnor

mal

dis

plac

emen

ts o

r inc

linat

ions

of b

earin

gs;

•A

bnor

mal

ly la

rge

or s

mal

l cle

aran

ce b

etw

een

balla

st w

all

and

supe

rstru

ctur

e;

•C

rack

s in

abu

tmen

t wal

l and

bal

last

wal

l •

Shi

ft in

alig

nmen

t fro

m o

rigin

al p

ositi

on;

•R

egul

ar m

onito

ring

and

mea

sure

men

t of m

ovem

ents

, in

clin

atio

ns, c

rack

wid

ths,

etc

. •

Und

erw

ater

inve

stig

atio

n •

Geo

tech

nica

l inv

estig

atio

n

Tabl

e 5.

1: S

uspe

cted

Per

form

ance

Def

icie

ncie

s (P

art 2

, Sec

tion

5)

21

1.

CO

NC

RET

E

DEF

ECT

CO

ND

ITIO

N S

TATE

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R

(S

EVER

E an

d VE

RY

SEVE

RE)

Stra

tific

atio

n S

epar

atio

n of

con

cret

e in

to la

yers

prio

r to

hard

enin

g du

e to

ove

r-vi

brat

ion.

A

LL

Se

greg

atio

n

Con

cret

e no

t uni

form

due

to fa

lling

conc

rete

(poo

r pla

cem

ent)

A

LL

C

old

Join

ts

Cau

sed

by h

arde

ned

conc

rete

prio

r to

the

next

adj

acen

t pou

r

A

LL

D

epos

its

Wat

er s

eepe

d th

roug

h co

ncre

te, l

each

ing

chem

ical

s an

d de

posi

ting

them

on

the

surfa

ce -

efflo

resc

ence

A

LL

Abr

asio

n

ALL

Wea

ring

caus

ed b

y ve

hicl

es o

r sno

w-p

loug

h bl

ades

DEFECTS

Page 22: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

22

1.

CO

NC

RET

E

DEF

ECT

CO

ND

ITIO

N S

TATE

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R

(S

EVER

E an

d VE

RY

SEVE

RE)

Wea

r R

esul

t of d

ynam

ic a

nd/o

r fric

tiona

l for

ces

gene

rate

d by

veh

icul

ar tr

affic

, cou

pled

with

th

e ab

rasi

ve in

flux

of s

and,

dirt

and

deb

ris

A

LL

Sl

ippe

ry C

on-

cret

e Su

rfac

e S

moo

th s

urfa

ce re

sulti

ng fr

om th

e po

lishi

ng o

f the

con

cret

e de

ck s

urfa

ce b

y th

e ac

tion

of re

petit

ive

vehi

cula

r tra

ffic

Act

ive

Wet

Are

as

Con

cret

e so

ffit s

urfa

ce is

wet

or d

amp

Wet

but

no

crac

ks

Wet

with

cra

cks

A

LL

* in

clud

e su

spec

ted

per-

form

ance

s de

ficie

ncy

of

“slip

pery

sur

face

DEFECTS

79

•M

is-a

lignm

ent,

late

ral d

efor

mat

ion,

war

ping

, etc

. of c

ompo

nent

s;

•In

abilit

y of

the

abut

men

t to

with

stan

d la

tera

l ear

th p

ress

ures

, as

indi

cate

d by

long

, med

ium

hor

izon

tal c

rack

s in

abu

tmen

ts;

•D

efor

mat

ion

of th

e ro

of s

lab,

floo

r sla

b or

wal

ls o

f cul

verts

. •

Def

orm

atio

n of

soi

l-ste

el s

truct

ures

suc

h as

flat

teni

ng o

r pea

king

of

the

soffi

t or b

uckl

ing

of th

e sh

ould

ers

or h

aunc

hes;

Up-

lift a

t end

s of

soi

l-ste

el s

truct

ures

Mov

emen

ts c

ausi

ng d

istre

ss in

a b

earin

g or

it's

com

pone

nts,

or i

n ot

her s

truct

ure

com

pone

nts;

3 C

ontin

uing

se

ttlem

ent

Foun

datio

n •

Loss

of s

treng

th o

r sup

port

for a

pplie

d lo

ads

due

to m

ater

ial d

efec

ts;

•Lo

ss o

f mat

eria

l sup

porti

ng fo

unda

tions

due

to s

cour

or e

rosi

on

•C

onso

lidat

ion

or fa

ilure

of u

nder

lyin

g so

il re

sulti

ng in

cra

ckin

g or

m

ovem

ent o

f fou

ndat

ions

, abu

tmen

ts o

r pie

rs

•Lo

ss o

f con

tact

bet

wee

n pi

les

and

pile

cap

or p

ier c

ap;

•C

hang

es in

the

incl

inat

ion

of p

iles.

Rot

atio

nal m

ovem

ent o

f pile

cap

s an

d lo

ss o

f ful

l con

tact

with

pile

s. •

Reg

ular

Mon

itorin

g of

se

ttlem

ent,

pier

and

ab

utm

ent e

leva

tions

an

d cr

ack

wid

ths

•S

treng

th e

valu

atio

n •

Geo

tech

nica

l in

vest

igat

ion

•U

nder

wat

er

inve

stig

atio

n

DEFICIENCIES

Page 23: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

78

Su

spec

ted

Perf

orm

ance

D

efic

ienc

y

Elem

ent N

ame

(Exa

mpl

es)

Des

crip

tion

of D

efic

ienc

y Po

ssib

le F

ollo

w-u

p Ac

tion

1 Lo

ad C

arry

ing

Cap

acity

G

irder

, Dec

k To

p, R

ailin

g S

yste

m, e

tc

•M

ater

ial d

efec

ts le

adin

g to

loss

of s

treng

th, o

r whi

ch a

re

indi

cativ

e of

inad

equa

te s

treng

th o

f the

com

pone

nt

(eg.

20%

sec

tion

loss

at m

id-s

pan

of g

irder

) •

Det

rimen

tal m

odifi

catio

ns m

ade

subs

eque

nt to

co

nstru

ctio

n;

•S

trong

evi

denc

e of

und

er d

esig

n to

cur

rent

load

s

•St

reng

th e

valu

atio

n •

Mon

itorin

g of

def

orm

a-tio

ns d

ispl

acem

ents

or

rota

tions

) or c

rack

s

2 Ex

cess

ive

Def

orm

atio

ns

Rai

ling

Syst

em,

Dec

k To

p, T

russ

Cho

rd,

Abu

tmen

t Wal

l, B

earin

gs, e

tc

•O

verlo

adin

g, e

ither

sin

gle

or re

petit

ive

occu

rren

ce,

resu

lting

in p

erm

anen

t def

orm

atio

ns o

f the

dec

k or

dec

k co

mpo

nent

s.

•P

erm

anen

t def

orm

atio

ns, e

spec

ially

in c

ompr

essi

on

com

pone

nts

•U

nant

icip

ated

or e

xces

sive

vib

ratio

n or

def

lect

ion

of

com

pone

nts,

con

nect

ions

or j

oint

s un

der l

ive

load

s •

Une

xpec

ted

nois

e fro

m c

ompo

nent

s or

con

nect

ions

due

to

vehi

cles

mov

ing

acro

ss th

e st

ruct

ure.

•St

reng

th e

valu

atio

n •

Mon

itorin

g of

de

form

atio

ns

(dis

plac

emen

ts o

r ro

tatio

ns)

DEFICIENCIES

Tabl

e 5.

1: S

uspe

cted

Per

form

ance

Def

icie

ncie

s (P

art 2

, Sec

tion

5)

23

Page 24: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

24

2.

STE

EL/A

LUM

INU

M (P

art 1

, Sec

t. 2.

3 an

d 2.

6, P

art 2

Tab

le 4

.15,

4.16

, and

4.1

7)

DEF

ECT

CO

ND

ITIO

N S

TATE

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R (

SEVE

RE

/ VER

Y SE

VER

E)

Cor

rosi

on

Det

erio

ratio

n of

ste

el b

y ch

emic

al/e

lect

ro-c

hem

ical

reac

tion

resu

lting

from

exp

osur

e to

air,

m

oist

ure,

de-

icin

g sa

lts, i

ndus

trial

fum

es a

nd o

ther

che

mic

als/

cont

amin

ants

in th

e en

viro

nmen

t in

whi

ch it

is p

lace

d

No

sect

ion

loss

, loo

se ru

st/

pitti

ng in

pai

nt -

< 10

% s

ectio

n lo

ss, s

mal

l sc

ales

or f

lake

s -

> 10

% s

ectio

n lo

ss, e

x-te

nsiv

e ru

st/

perf

orat

ions

Ea

rly s

igns

of p

atin

a da

mag

e Fl

akin

g of

pat

ina

Perm

anen

t D

efor

mat

ions

Ste

el m

embe

rs c

an ta

ke th

e fo

rm o

f ben

ding

, buc

klin

g, tw

istin

g or

elo

ngat

ion.

C

orru

gate

Ste

el P

ipe

(CSP

) cul

verts

can

exh

ibit

cusp

ing

(abr

upt c

hang

e in

cur

vatu

re, t

ypic

ally

at

sea

m),

crim

ping

(loc

al b

uckl

ing

of c

ulve

rt w

all),

glo

bal d

efor

mat

ion

(cha

nge

in o

rigin

al

curv

ed s

hape

), an

d bo

lt til

ting

(bea

ring

failu

re o

f bol

ts).

For M

embe

rs:

ALL

(E

stim

ate

repa

ir ar

ea)

DEFECTS

77

Performance Deficiencies and Maintenance Needs

APPENDIX D

Page 25: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

76

Woo

d Su

bstr

uctu

re o

r Su

pers

truc

ture

A

det

aile

d in

vest

igat

ion

of th

e w

ood

com

pone

nts

usin

g te

chni

ques

suc

h as

pro

bing

, dr

illing

, cor

ing,

etc

.

10%

of e

lem

ent i

n “P

oor”

Con

ditio

n St

ate

Par

t 4 o

f thi

s m

anua

l

Stru

ctur

al S

teel

C

oatin

g A

det

aile

d su

rvey

of t

he c

ondi

tion

of th

e co

atin

g to

con

firm

the

feas

ibilit

y of

ove

r-coa

ting.

The

su

rvey

invo

lves

test

ing

coat

ing

adhe

sion

, dry

fil

m th

ickn

ess,

etc

. If

dete

riora

tion

is s

till i

n th

e ea

rly s

tage

s (C

ombi

ned

area

of F

air a

nd P

oor

grea

ter t

han

25%

, and

Poo

r is

less

than

10%

at

the

visu

al in

spec

tion

stag

e), “

over

-coa

ting”

of

the

stee

l may

be

a vi

able

reha

bilit

atio

n op

tion.

Th

is in

volv

es c

lean

ing

the

surfa

ce w

ith a

wire

br

ush

and

“ove

r-co

atin

g” th

e en

tire

surfa

ce.

If de

terio

ratio

n ex

ceed

s th

e th

resh

old,

trad

ition

al

coat

ing

tech

niqu

es (s

andb

last

ing

the

surfa

ce,

prim

ing,

etc

,) w

ould

pro

babl

y ha

ve to

be

used

.

25%

of c

ombi

ned

area

in

“Fai

r” an

d “P

oor”

C

ondi

tion

Sta

tes

and

also

the

perc

enta

ge in

P

oor l

ess

than

10%

.

Stru

ctur

al S

teel

Coa

ting

Man

ual

CONDITI

ON

* T

his t

able

indi

cate

s the

mat

eria

l def

ect p

ropo

rtion

s tha

t wou

ld g

ener

ally

trig

ger t

he

need

for a

det

aile

d co

nditi

on su

rvey

to b

e do

ne.

25

2.

STE

EL/A

LUM

INU

M

DEF

ECT

CO

ND

ITIO

N S

TATE

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R (

SEVE

RE

/ VER

Y SE

VER

E)

Cus

ping

or c

rimpi

ng o

f cul

verts

<1

0mm

in h

eigh

t.

Cus

ping

or c

rimpi

ng o

f cul

-ve

rts >

10m

m in

hei

ght *

Glo

bal D

efor

mat

ion

<10%

of c

ulve

rt di

amet

er

Glo

bal D

efor

mat

ion

>10%

of

cul

vert

diam

eter

and

re-

vers

e cu

rvat

ure

*

B

olt T

iltin

g

C

rack

ing

A

re li

near

frac

ture

in th

e st

eel e

xten

ding

par

tially

or c

ompl

etel

y th

roug

h th

e m

embe

r. Th

ey a

re

mai

nly

caus

ed b

y fa

tigue

, whi

ch c

an le

ad to

brit

tle fr

actu

re (m

embe

r cra

cks

com

plet

ely)

th

roug

h w

ithou

t prio

r war

ning

) C

rack

s pe

rpen

dicu

lar t

o st

ress

are

ver

y s

erio

us a

nd s

houl

d ha

ve

imm

edia

te a

ctio

n ta

ken.

A

LL

(Est

imat

e re

pair

area

)

DEFECTS

Page 26: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

26

2.

STE

EL/A

LUM

INU

M

DEF

ECT

CO

ND

ITIO

N S

TATE

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R

(SEV

ERE

/ VER

Y SE

VER

E)

Con

nect

ion

D

efic

ienc

ies

Lo

ose

conn

ectio

ns c

an o

ccur

in b

olte

d, ri

vete

d or

cla

mpe

d co

nnec

tions

. Th

ey m

ay b

e ca

used

by

corr

osio

n of

the

conn

ecto

r, gu

sset

pla

tes

or fa

sten

ers,

exc

essi

ve v

ibra

tion,

ov

erst

ress

ing,

cra

ckin

g, o

r the

lack

of p

rope

r tig

hten

ing

durin

g co

nstru

ctio

n.

Bas

ed o

n th

e co

nditi

on o

f the

wor

st c

ompo

nent

with

in th

e co

nnec

tion

Dep

ends

on

perc

enta

ge o

f Loo

se B

olts

or P

lan

Are

a w

ith s

ever

e co

rros

ion

< 5%

loos

e bo

lts o

r se-

vere

rust

<

10%

loos

e bo

lts o

r sev

ere

rust

or

cra

cks

> 10

% lo

ose

bolts

or

seve

re ru

st o

r cra

cks

* -

F

or C

SP

cul

verts

, all

porti

ons

in th

e P

oor C

ondi

tion

Sta

te e

xcep

t cor

rosi

on w

ithou

t per

fora

tions

(i.e

. cu

spin

g, c

rimpi

ng, d

efor

mat

ions

, cra

cks

and

corro

sion

with

per

fora

tions

) the

are

a sh

all b

e ta

ken

to in

clud

e th

e en

tire

circ

umfe

renc

e

DEFECTS

75

Tabl

e 1:

Mat

eria

l Con

ditio

n Su

rvey

Trig

gers

(Par

t 3)

Con

ditio

n Su

rvey

Ty

pe

Des

crip

tion

Con

ditio

n Su

rvey

Tr

igge

r R

efer

ence

s

Con

cret

e D

eck

(A

spha

lt or

Con

cret

e su

rfac

e)

Invo

lves

the

test

ing

of v

ario

us c

ore

sam

ples

, sa

wn

sam

ples

and

the

delin

eatio

n of

de

lam

inat

ed a

reas

and

are

as o

f hig

h co

rros

ion

pote

ntia

l (us

ing

half-

cell

surv

ey)

10%

of e

lem

ent i

n “P

oor”

Con

ditio

n S

tate

Stru

ctur

e R

ehab

ilitat

ion

Man

ual

Non

-des

truc

tive

Del

amin

atio

n Su

rvey

of

Asp

halt

Cov

ered

D

ecks

Invo

lves

the

delin

eatio

n of

del

amin

ated

are

as

usin

g no

n-de

stru

ctiv

e te

stin

g te

chni

ques

suc

h as

Gro

und

Pen

etra

ting

Rad

ar, I

mpa

ct E

cho

test

ing,

etc

5% o

f ele

men

t in

“Poo

r” C

ondi

tion

Sta

te S

truct

ure

Reh

abilit

atio

n M

anua

l

Con

cret

e Su

bstr

uctu

re In

volv

es th

e te

stin

g of

var

ious

cor

e sa

mpl

es,

etc,

and

the

delin

eatio

n of

del

amin

ated

are

as

and

area

s of

hig

h co

rros

ion

pote

ntia

l (us

ing

half-

cell

surv

ey)

10%

of e

lem

ent i

n “P

oor”

Con

ditio

n S

tate

Stru

ctur

e R

ehab

ilitat

ion

Man

ual

CONDITI

ON

Page 27: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

74

Tabl

e 4.

19:

Woo

d –

Subs

truc

ture

s an

d Su

pers

truc

ture

s

Exce

llent

Con

ditio

n G

ood

Con

ditio

n Fa

ir C

ondi

tion

Poor

Con

ditio

n N

o ob

serv

ed m

ater

ial d

efec

ts

Ligh

t che

cks,

spl

its a

nd s

hake

s * M

ediu

m c

heck

s, s

plits

and

sh

akes

*

Sev

ere

and

very

sev

ere

chec

ks,

split

s an

d sh

akes

*

Li

ght w

eath

erin

g M

ediu

m w

eath

erin

g S

ever

e an

d ve

ry s

ever

e w

eath

-er

ing

Li

ght r

ot o

r dec

ay

Med

ium

rot o

r dec

ay

Sev

ere

and

very

sev

ere

rot o

r de

cay

Li

ght i

nsec

t dam

age

Med

ium

Inse

ct D

amag

e S

ever

e an

d ve

ry s

ever

e in

sect

da

mag

e

Ligh

t abr

asio

n an

d w

ear

Med

ium

Abr

asio

n an

d w

ear

Seve

re a

nd v

ery

seve

re a

bra-

sion

and

wea

r

Ligh

t cra

ckin

g, s

plin

terin

g,

crus

hing

and

sha

tterin

g M

ediu

m c

rack

ing,

spl

inte

ring,

cr

ushi

ng a

nd s

hatte

ring

Seve

re a

nd v

ery

seve

re c

rack

-in

g, s

plin

terin

g, c

rush

ing

and

shat

terin

g

Ligh

t fire

and

che

mic

al d

amag

e M

ediu

m fi

re a

nd c

hem

ical

dam

-ag

e S

ever

e an

d ve

ry s

ever

e fir

e an

d ch

emic

al d

amag

e

Li

ght c

onne

ctio

n de

ficie

ncie

s

Med

ium

con

nect

ion

defic

ienc

ies

Sev

ere

conn

ectio

n de

ficie

ncie

s

Con

ditio

n su

rvey

if a

rea

of d

ete-

riora

tion

in th

is s

tate

> 1

0%

* -

T

hese

nat

ural

ly o

ccur

ring

crac

ks in

the

woo

d, c

ause

d by

shr

inka

ge, a

re n

ot a

s se

vere

as

over

load

cr

acki

ng o

r spl

inte

ring

sinc

e w

ood

fibre

s ex

ist t

o br

idge

the

crac

k an

d re

duce

the

impa

ct o

n th

e m

embe

r ca

paci

ty.

The

actu

al a

rea

cont

aini

ng th

e de

fect

sha

ll be

det

erm

ined

for a

reas

con

tain

ing

num

erou

s de

fect

s. F

or is

olat

ed c

rack

s, 8

m o

f cra

ck le

ngth

is e

qual

to 1

squ

are

met

re o

f def

ect f

or c

heck

s, s

hake

s an

d sp

lits;

whi

le 4

m o

f cra

ck le

ngth

is e

qual

to 1

squ

are

met

re o

f def

ect f

or c

rack

ing,

spl

inte

ring,

cru

sh-

ing

and

shat

terin

g. T

he le

ngth

of c

rack

s, s

hake

s, s

plits

, etc

. sha

ll be

mea

sure

d on

all

surfa

ces.

CONDITI

ON

27

Page 28: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

28 73

Tabl

e 4.

18:

Stre

ams

and

Wat

erw

ays

Exce

llent

Con

ditio

n G

ood

Con

ditio

n

Fair

Con

ditio

n

Poor

Con

ditio

n N

o ob

serv

ed m

ater

ial

defe

cts

A fe

w lo

catio

ns o

f sco

ur

or d

egra

datio

n of

the

stre

am b

ed o

r stre

am

bank

s bu

t not

exp

osin

g th

e fo

unda

tions

Num

erou

s lo

catio

ns o

f sc

our o

r deg

rada

tion

of th

e st

ream

bed

or s

tream

ba

nks

to th

e to

p of

the

pre-

viou

sly

cove

red

foun

da-

tions

Sco

ur o

r deg

rada

tion

of th

e st

ream

bed

or s

tream

ban

ks

to th

e bo

ttom

of p

revi

ousl

y co

vere

d fo

unda

tions

S

light

sco

ur a

t inl

et o

r ou

tlet o

f cul

verts

and

so

il-st

eel s

truct

ures

Mod

erat

e sc

our a

t the

inle

t or

out

let o

f cul

verts

and

so

il-st

eel s

truct

ures

Ext

ensi

ve s

cour

aro

und

the

inle

t or o

utle

t of c

ulve

rts a

nd

soil-

stee

l stru

ctur

es w

ith lo

ss

of e

mba

nkm

ent f

ill

Stre

am a

lignm

ent

shift

ed b

ut n

ot e

n-cr

oach

ing

agai

nst c

om-

pone

nts

prev

ious

ly n

ot

subj

ect t

o st

ream

flow

Stre

am a

lignm

ent s

hifte

d an

d en

croa

chin

g cl

ose

to

com

pone

nts

not p

revi

ousl

y su

bjec

t to

stre

am fl

ow

Stre

am a

lignm

ent s

hifte

d w

ith s

tream

flow

dire

ctly

ag

ains

t mos

t of a

com

pone

nt

not p

revi

ousl

y su

bjec

t to

stre

am

A

few

loca

tions

of a

g-gr

adat

ion

not a

ffect

ing

the

stre

am fl

ow a

t the

st

ruct

ure

Med

ium

agg

rada

tion

hav-

ing

a si

gnifi

cant

effe

ct o

n th

e st

ream

flow

at t

he

stru

ctur

e

Ext

ensi

ve a

ggra

datio

n ve

ry

seve

rely

affe

ctin

g th

e st

ream

flo

w a

t the

stru

ctur

e)

CONDITI

ON

Page 29: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

72

Tabl

e 4.

17:

Stee

l or A

lum

inum

- R

ailin

gs

Exce

llent

Con

ditio

n G

ood

Con

ditio

n

Fair

Con

ditio

n

Poor

Con

ditio

n

No

obse

rved

mat

eria

l de

fect

s Li

ght c

orro

sion

– n

o se

ctio

n lo

ss

Med

ium

cor

rosi

on -

up

to 1

0% s

ectio

n lo

ss

Sev

ere

and

very

sev

ere

corr

osio

n –

mor

e th

an

10%

sec

tion

loss

Slig

ht lo

ss o

f cab

le te

n-si

on o

r slig

ht s

lippa

ge

of c

able

anc

hors

and

sp

lices

Mod

erat

e lo

ss o

f cab

le

tens

ion

or s

light

slip

-pa

ge o

f cab

le a

ncho

rs

and

splic

es

Sig

nific

ant l

oss

of c

able

te

nsio

n or

slig

ht s

lip-

page

of c

able

anc

hors

an

d sp

lices

Brok

en c

able

stra

nds/

supp

orts

Col

lisio

n or

van

dalis

m

dam

age/

mis

sing

sec

-tio

ns

P

erm

anen

t def

orm

a-tio

ns

Li

ght c

onne

ctio

n de

fi-ci

enci

es

Med

ium

con

nect

ion

defic

ienc

ies

Sev

ere

conn

ectio

n de

fi-ci

enci

es

CONDITI

ON

29

DEFECTS

3.

WO

OD

(Par

t 1, S

ect.

2.4

and

Part

2 T

able

4.1

9)

DEF

ECT

CO

ND

ITIO

N S

TATE

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R

(S

EVER

E / V

ERY

SEVE

RE)

Wea

ther

ing

Gra

dual

det

erio

ratio

n of

woo

d du

e to

exp

osur

e to

the

actio

ns o

f sun

, rai

n, w

ind,

fros

t and

atm

osph

eric

po

lluta

nts

Che

cks

Lo

ngitu

dina

l tis

sue

sepa

ratio

ns o

n th

e si

de g

rain

of w

ood

mem

bers

Split

s S

ever

e tis

sue

sepa

ratio

ns e

xten

ding

from

the

side

into

the

end

Shak

es

Tiss

ue s

epar

atio

ns w

hich

follo

w th

e ci

rcul

ar a

nnua

l gro

wth

ring

s, a

nd a

re v

isib

le o

n th

e en

d gr

ain

Wea

ther

ing

< 5%

into

mem

ber

5

—10

% in

to m

embe

r

>

10%

into

mem

ber

Che

cks,

Spl

its,

Shak

es

< 5%

into

mem

ber

5—10

% in

to m

embe

r >

10%

into

mem

ber

Bio

logi

cal d

ecom

posi

tion

of w

ood

caus

ed b

y m

icro

-org

anis

ms

calle

d fu

ngi

Slig

ht c

hang

e in

col

our b

ut

woo

d so

lid (<

5% S

ectio

n Lo

ss)

Sur

face

is d

isco

lour

ed a

nd s

light

ho

llow

sou

nd (5

% to

10%

Sec

tion

Loss

)

Sur

face

is fi

brou

s or

cru

mbl

y an

d ho

llow

sou

ndin

g or

Sur

face

an

d in

terio

r is

crum

bly

and

woo

d is

wea

k (>

10%

Los

s)

Rot

or D

ecay

Page 30: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

30

DEFECTS

3.

WO

OD

D

EFEC

T C

ON

DIT

ION

STA

TE

G

OO

D (L

IGH

T)

FAIR

(MED

IUM

) PO

OR

(SEV

ERE

/ VER

Y SE

VER

E)

Inse

ct D

amag

e

Con

sequ

ence

of t

he tu

nnel

ling/

borin

g by

larv

ae/m

atur

e in

sect

s th

roug

h th

e w

ood

re-

sulti

ng in

loss

of s

ectio

n

Hol

es a

re p

rese

nt

(<5%

loss

) H

oles

and

inse

cts

pres

ent

(5%

- 10

% lo

ss)

Exte

nsiv

e/se

vere

hol

es a

nd

inse

cts

(>10

% lo

ss)

Abr

asio

n an

d W

ear D

eter

iora

tion

of w

ood

brou

ght a

bout

by

vehi

cles

or s

now

plou

gh b

lade

s sc

rapi

ng

agai

nst w

ood

surfa

ces,

cou

pled

with

the

abra

sive

influ

ence

of s

and,

dirt

or d

ebris

. <

5% lo

ss

5% -

10%

loss

>

10%

loss

Cra

ckin

g, S

plin

ter-

ing,

Cru

shin

g an

d Sh

atte

ring

Phy

sica

l dam

age

whi

ch re

sults

from

veh

icul

ar c

ollis

ion

from

ove

rload

ing

of a

mem

ber

< 5%

loss

5%

- 10

% lo

ss

> 10

% lo

ss

71

Tabl

e 4.

16:

Stee

l or A

lum

inum

– S

ubst

ruct

ures

and

Sup

erst

ruct

ures

Ex

celle

nt C

ondi

tion

Goo

d C

ondi

tion

Fair

Con

ditio

n Po

or C

ondi

tion

No

obse

rved

mat

eria

l de

fect

s Li

ght c

orro

sion

– n

o se

c-tio

n lo

ss

Med

ium

cor

rosi

on -

up

to 1

0% s

ectio

n lo

ss

Sev

ere

and

very

sev

ere

corr

osio

n –

mor

e th

an

10%

sec

tion

loss

All

crac

ks (i

mm

edia

te

actio

n is

requ

ired

-es

timat

e re

pair

area

)

Perm

anen

t def

orm

atio

ns

Li

ght c

onne

ctio

n de

fi-ci

enci

es

Med

ium

con

nect

ion

defi-

cien

cies

Se

vere

con

nect

ion

defi-

cien

cies

Eva

luat

ion

and

cond

ition

su

rvey

* if

>

10%

in th

is s

tate

.

* In

volv

es m

easu

ring

thic

knes

s of

crit

ical

mem

bers

to d

eter

min

e se

ctio

n lo

ss a

s it

varie

s ac

ross

the

ele-

men

t

CONDITI

ON

Page 31: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

70

Tabl

e 4.

15:

Stee

l – A

tmos

pher

ic C

orro

sion

Res

ista

nt S

ub-

stru

ctur

es a

nd S

uper

stru

ctur

es

Exce

llent

Con

ditio

n G

ood

Con

ditio

n Fa

ir C

ondi

tion

Poor

Con

ditio

n

No

obse

rved

mat

eria

l de

fect

s w

ith s

moo

th

unifo

rm ru

st la

yer

(pat

ina)

Ear

ly s

igns

of p

atin

a fla

king

and

no

sect

ion

loss

Flak

ing

and

dela

min

a-tio

n of

Pat

ina

up to

10%

se

ctio

n lo

ss

Mor

e th

an 1

0% s

ectio

n lo

ss

A

ll cr

acks

P

erm

anen

t def

orm

a-tio

ns

Li

ght c

onne

ctio

n de

fi-ci

enci

es

Med

ium

con

nect

ion

defi-

cien

cies

S

ever

e co

nnec

tion

defi-

cien

cies

Eva

luat

ion

and

cond

ition

su

rvey

* if

>

10%

in th

is s

tate

.

CONDITI

ON

31

DEFECTS

3.

WO

OD

D

EFEC

T C

ON

DIT

ION

STA

TE

G

OO

D (L

IGH

T)

FAIR

(MED

IUM

) PO

OR

(SEV

ERE

/ VER

Y SE

VER

E)

Fire

and

Che

mi-

cal D

amag

e

Fire

is e

vide

nced

by

char

ring

and

is u

sual

ly c

onfin

ed to

the

woo

d su

rface

. C

hem

ical

dam

-ag

e m

ay re

sult

from

the

use

of n

on p

rese

rvat

ive

chem

ical

s on

the

woo

d su

rface

ove

r a

long

per

iod

of ti

me

Sl

ight

cha

rrin

g or

so

fteni

ng w

ith <

5%

se

ctio

n lo

ss

Dee

per c

harr

ing

or s

ofte

ning

w

ith s

light

loos

e co

nnec

tors

w

ith 5

% -

10%

sec

tion

loss

Exte

nsiv

e da

mag

e w

ith lo

ose

and

seve

rely

def

orm

ed c

onne

c-to

rs >

10%

sec

tion

loss

C

onne

ctio

n

Def

icie

ncie

s

< 5%

loos

e bo

lts o

r s

ever

e ru

st

< 10

% lo

ose

bolts

or s

ever

e ru

st

> 10

% lo

ose

bolts

or s

ever

e ru

st

Con

nect

ions

are

loos

ened

due

to re

petit

ive

or d

ynam

ic lo

ads,

wea

r or d

ecay

of m

embe

rs

conn

ecte

d an

d co

rros

ion

of th

e co

nnec

tors

Page 32: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

32

4.

MA

SON

RY

(Par

t 1 S

ect.

2.5,

Par

t 2 T

able

4.1

1)

DEF

ECT

CO

ND

ITIO

N S

TATE

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R

(SEV

ERE

/ VER

Y SE

VER

E)

Cra

ckin

g

Inco

mpl

ete

sepa

ratio

n in

to o

ne o

r mor

e pa

rts w

ith o

r with

out s

pace

bet

wee

n

< 0

.3 m

m w

ide

0.3

to 1

.0 m

m w

ide

> 1.

0 m

m w

ide

Split

ting

Th

e op

enin

g of

sea

ms

or c

rack

s in

the

ston

e le

adin

g to

the

brea

king

of t

he s

tone

into

la

rge

fragm

ents

Sp

allin

g Th

e br

eaki

ng o

r chi

ppin

g aw

ay o

f pie

ces

of th

e st

one

from

a la

rger

sto

ne

Dis

inte

grat

ion

Gra

dual

bre

akdo

wn

of th

e st

one

into

sm

all f

ragm

ents

, pie

ces

or p

artic

les

Split

ting,

Spa

lling

D

isin

tegr

atio

n H

airli

ne c

rack

ing

and

min

or lo

ss o

f sto

ne

surf

ace

with

sec

tion

loss

< 5

0 m

m

Nar

row

cra

ckin

g or

chi

ppin

g aw

ay

of s

tone

with

sec

tion

loss

50

to

100

mm

Exte

nsiv

e sp

allin

g an

d di

sint

egra

tion

of s

tone

w

ith s

ectio

n lo

ss >

100

m

m D

EFECTS

69

Tabl

e 4.

14:

Soil-

Stee

l Str

uctu

res

Exce

llent

Con

ditio

n G

ood

Con

ditio

n

Fair

Con

ditio

n

Poor

Con

ditio

n*

No

obse

rved

mat

eria

l de-

fect

s

Med

ium

Cus

ping

or C

rimpi

ng o

f co

rruga

tions

(les

s th

an 1

0 m

m in

he

ight

)

Seve

re C

uspi

ng o

r Crim

ping

of

cor

ruga

tions

(gre

ater

than

10

mm

in h

eigh

t)

Med

ium

Glo

bal D

efor

mat

ion

(less

th

an 1

0% o

f cul

vert

diam

eter

) S

ever

e G

loba

l Def

orm

atio

n (g

reat

er th

an 1

0% o

f cul

vert

diam

eter

or w

ith re

vers

e cu

r-va

ture

)

B

olt t

iltin

g

Cra

cks

Li

ght C

orro

sion

(s

urfa

ce ru

st).

M

ediu

m C

orro

sion

(Sha

llow

pit-

ting

and

corr

osio

n sc

ale

over

sur

-fa

ce –

less

than

10%

sec

tion

loss

) Sev

ere

Cor

rosi

on (D

eep

pit-

ting

and

corro

sion

sca

le o

ver

surfa

ce –

gre

ater

than

10%

se

ctio

n lo

ss)

* -

U

nit

of m

easu

re f

or s

oil-s

teel

stru

ctur

es is

m2 .

The

are

a of

def

ect

shou

ld b

e re

cord

ed f

or S

ever

e C

orro

sion

(ex

clud

ing

corr

osio

n w

ith p

erfo

ratio

ns),

as w

ell a

s fo

r the

Exc

elle

nt, G

ood

and

Fair

Con

ditio

n S

tate

s. F

or a

ll ot

her p

ortio

ns in

the

Poo

r C

ondi

tion

Stat

e (c

uspi

ng,

crim

ping

, de

form

atio

ns,

crac

ks a

nd c

orro

sion

with

per

fora

tions

) th

e ar

ea s

hall

be t

aken

to

in-

clud

e th

e en

tire

circ

umfe

renc

e.

This

is d

ue to

the

impo

rtanc

e of

soi

l-ste

el in

tera

ctio

n an

d co

ntin

uity

of t

he r

adia

l cor

ruga

-tio

ns o

f ste

el w

here

suc

h a

defe

ct a

t one

poi

nt o

n th

e cu

lver

t will

affe

ct th

e en

tire

circ

umfe

renc

e.

CONDITI

ON

Page 33: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

68

Tabl

e 4.

13:

Slop

e Pr

otec

tion

Exce

llent

Con

ditio

n G

ood

Con

ditio

n

Fair

Con

ditio

n

Poor

Con

ditio

n

No

obse

rved

mat

eria

l de

fect

s Lo

ss o

r det

erio

ratio

n of

le

ss th

an 2

0% o

f slo

pe

prot

ectio

n m

ater

ial

Loss

or d

eter

iora

tion

of

20%

to 6

0% o

f slo

pe

prot

ectio

n m

ater

ial

Loss

or d

eter

iora

tion

of

mor

e th

an 6

0% o

f slo

pe

prot

ectio

n m

ater

ial

CONDITI

ON

33

DEFECTS

4.

MA

SON

RY

(Par

t 1 S

ect.

2.5,

Par

t 2 T

able

4.1

1)

DEF

ECT

CO

ND

ITIO

N S

TATE

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R

(SEV

ERE

/ VER

Y SE

VER

E)

Loss

of M

orta

r or

Ston

e R

esul

t of t

he d

estru

ctiv

e ac

tions

of f

rost

, ero

sion

, pla

nt g

row

th o

r sof

teni

ng b

y w

ater

con

-ta

inin

g di

ssol

ved

sulp

hate

s or

chl

orid

es.

Mor

tar l

ost f

rom

join

ts

in a

few

pla

ces

to a

de

pth

of 2

0 m

m

Mor

tar l

ost f

rom

join

ts o

ver a

n ex

-te

nded

are

a to

a d

epth

of 2

0 to

50

mm

Exte

nsiv

e m

orta

r/sto

ne

loss

end

ange

ring

the

stab

ility

of t

he s

truc

-tu

re

Page 34: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

34

ASPHALT (Part 1, Sect. 2.7)

• Distinction made between rating the as-phalt wearing surface and the deck top be-neath the asphalt

• Asphalt defects are put into two major cate-

gories: • Top-Down Defects (defect originates in

asphalt and includes:) • Bond Defects (loss of bond and

rippling) • Surface Defects (ravelling, slippery

surface and flushing) • Surface Distortions (wheel track

rutting) • Isolated Cracks (Light and medium

isolated cracks)

• Bottom-Up Defects (defect probably originated in concrete deck and reflected in asphalt surface) • Pattern cracking (map, alligator,

radial, edge cracking) • Wide isolated cracks (transverse,

longitudinal) • Local Underlying Defects (local

potholes and protrusions)

DEFECTS

67

Exce

llent

G

ood

Fair

Po

or

No

obse

rved

def

ects

N

ot a

sta

ndar

d si

gn

Not

loca

ted

acco

rdin

g to

st

anda

rds

Illeg

ible

G

ives

mis

lead

ing,

wro

ng o

r in

accu

rate

info

rmat

ion

Loos

e C

ompo

nent

s B

roke

n or

mis

sing

com

pone

nts

S

ign

is m

issi

ng

Li

ght m

ater

ial d

efec

ts M

ediu

m m

ater

ial d

efec

ts.

Loos

e, d

amag

ed o

r ben

t co

mpo

nent

s on

atta

chm

ents

Sev

ere

and

very

sev

ere

mat

e-ria

l def

ects

. B

roke

n or

mis

sing

co

mpo

nent

s on

atta

chm

ents

Tabl

e 4.

12:

Acce

ssor

ies

CONDITI

ON

Page 35: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

66

Tabl

e 4.

11:

Mas

onry

Con

stru

ctio

n Ex

celle

nt C

ondi

tion

Goo

d C

ondi

tion

Fair

Con

ditio

n Po

or C

ondi

tion

No

obse

rved

mat

eria

l de

fect

s H

airli

ne a

nd n

arro

w

crac

ks

Med

ium

cra

cks

W

ide

crac

ks

Leac

hing

of l

ime

base

d m

orta

r

Li

ght s

plitt

ing,

spa

lling

an

d di

sint

egra

tion

Med

ium

spl

ittin

g,

spal

ling

and

disi

nteg

ra-

tion

Sev

ere

and

very

sev

ere

split

ting,

spa

lling

and

disi

nteg

ratio

n

Ligh

t los

s of

poi

ntin

g m

orta

r M

ediu

m lo

ss o

f po

intin

g m

orta

r S

ever

e an

d ve

ry s

ever

e lo

ss o

f poi

ntin

g m

orta

r an

d st

ones

CONDITI

ON

35

ASPHALT - CRACKING

• Linear Fracture extending partially or com-pletely through the pavement caused by:

• Wheel loading, • Poor material, • Poor compaction, • Frost action, • Drainage, or • Reflective crack (from crack below)

• Distinguished by crack appearance and direc-

tion Longitudinal

Parallel to the direction of travel, and generally located at or near the centre of the wheel track or pavement edge

Transverse Across pavement either fully or partially

Pattern Cracking

Series of cracks in close proximity to each other

Alligator Network of multi-sided polygons, usually accompanied by depressions in the surface

Map Cracks run randomly along pavement

Progressive edge Cracks begin parallel to edge of pavement and lead to breaking up of the edge of pavement

Radial Cracks in a radial pattern, usually about a depression.

DEFECTS

Page 36: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

36

DEFECTS

DEF

ECT

5.

ASP

HA

LT W

EAR

ING

SU

RFA

CE

(Par

t 1 S

ect.

2.7,

Par

t 2 T

able

4.1

)

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R

(SEV

ERE

/ VER

Y SE

VER

E)

Pat

tern

(e.g

. M

ap, a

lliga

tor,

radi

al, e

dge

)an

d

isol

ated

Line

ar fr

actu

re e

xten

ding

par

tially

or c

ompl

etel

y th

roug

h th

e pa

vem

ent

1—5

mm

wid

e

Bon

d

Def

ects

Lo

ss o

f bon

d W

ides

prea

d lo

ss o

f bon

d an

d de

lam

inat

ion

may

occ

ur b

etw

een

the

asph

alt p

avem

ent

and

deck

sur

face

, bet

wee

n th

e w

ater

proo

fing

and

the

deck

sur

face

, bet

wee

n th

e w

a-te

rpro

ofin

g an

d th

e as

phal

t pav

emen

t or b

etw

een

indi

vidu

al li

fts o

f pav

emen

t <

150

mm

in d

iam

eter

15

0 to

300

mm

in d

i-am

eter

>

300

mm

in d

iam

eter

Rip

plin

g

The

form

atio

n of

tran

sver

se u

ndul

atio

ns in

the

pave

men

t sur

face

con

sist

ing

of c

lose

ly

spac

ed v

alle

ys a

nd c

rest

s A

few

not

icea

ble

bum

ps S

ever

al b

umps

pro

duc-

ing

a ro

ugh

ride

Num

erou

s bu

mps

pro

duci

ng

a ve

ry ro

ugh

ride

and

diffi

-cu

lty m

aint

aini

ng c

ontr

ol o

f ve

hicl

e

Cra

cks

6—10

mm

wid

e >

10 m

m w

ide

65

Tabl

e 4.

10:

Expa

nsio

n Jo

int –

Sea

ls/S

eala

nts

Exce

llent

Con

ditio

n G

ood

Con

ditio

n

Fair

Con

ditio

n

Poor

Con

ditio

n

No

obse

rved

mat

eria

l de

fect

s A

bras

ions

in s

eal w

ith n

o pe

rfora

tions

Lo

ss o

f res

ilienc

y of

sea

l bu

t no

perfo

ratio

ns

Cra

cks,

tear

s or

hol

es in

th

e se

al

S

eal h

as d

ebon

ded

S

eal i

s al

low

ing

leak

age

on th

e su

bstru

ctur

e.

Sea

lant

deb

onde

d,

pulle

d ou

t or s

ettle

d

CONDITI

ON

Page 37: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

64

Tabl

e 4.

9: E

xpan

sion

Joi

nt –

Arm

ourin

g an

d R

etai

ning

Dev

ices

Exce

llent

Con

ditio

n G

ood

Con

ditio

n

Fair

Con

ditio

n

Poor

Con

ditio

n

No

obse

rved

mat

eria

l de

fect

s

Ligh

t Cor

rosi

on*

Med

ium

Cor

rosi

on*

Sev

ere

Cor

rosi

on*

Bol

ts, a

ncho

rs, a

rmou

r-in

g, c

lam

ping

dev

ices

or

wel

ds a

re lo

ose,

bro

ken

or m

issi

ng

* As

defin

ed in

Tab

le 4

.16.

CONDITI

ON

37

DEFECTS

DEF

ECT

5.

ASP

HA

LT W

EAR

ING

SU

RFA

CE

(Par

t 1 S

ect.

2.7,

Par

t 2 T

able

4.1

)

G

OO

D (L

IGH

T)

FAIR

(MED

IUM

) PO

OR

(

SEVE

RE

/ VE

RY

SEVE

RE)

Su

rfac

e

Def

ects

P

rogr

essi

ve d

eter

iora

tion

and

loss

of t

he p

avem

ent m

ater

ial f

rom

sur

face

dow

nwar

d

Not

icea

ble

loss

of

pave

men

t mat

eria

l Sh

allo

w d

isin

tegr

atio

n of

pav

emen

t with

an

open

text

ure

appe

ar-

ance

Shal

low

to d

eep

disi

nteg

ratio

n of

pav

emen

t with

sm

all/

num

erou

s po

thol

es, o

pen

tex-

ture

and

loos

e su

rfac

e m

ater

ial

Slip

pery

Su

rfac

e

May

resu

lt fro

m fl

ushi

ng o

r fro

m th

e po

lishi

ng o

f the

coa

rse

surfa

ce a

ggre

gate

s by

the

actio

n of

repe

titiv

e ve

hicu

lar t

raffi

c Th

ere

are

no s

ever

ity d

escr

iptio

ns g

iven

for s

lippe

ry s

urfa

ces

as th

is is

a s

eri-

ous

and

pote

ntia

lly h

azar

dous

situ

atio

n re

sulti

ng in

loss

of r

idin

g co

mfo

rt a

nd

loss

of v

ehic

le c

ontr

ol (i

ndic

ate

susp

ecte

d pe

rfor

m d

efic

ienc

y of

slip

pery

sur

-fa

ce)

Flus

hing

Th

e m

igra

tion

of a

spha

lt up

war

ds to

the

pave

men

t sur

face

in p

avem

ents

with

too

muc

h as

phal

t in

the

mix

. Vi

sibl

e co

lour

ing

of

the

pave

men

t sur

face

oc

curr

ing

in lo

caliz

ed

area

s

Dis

tinct

ive

colo

urin

g of

th

e pa

vem

ent s

urfa

ce

with

exc

ess

asph

alt

free

on

the

pave

men

t su

rfac

e

Exce

ssiv

e fr

ee a

spha

lt gi

ves

the

pave

men

t sur

face

a “

wet

lo

ok”.

Vis

ible

impr

ints

left

from

fo

otpr

ints

or v

ehic

ular

traf

fic

Rav

ellin

g

Page 38: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

38

DEFECTS

DEF

ECT

5.

ASP

HA

LT W

EAR

ING

SU

RFA

CE

(Par

t 1 S

ect.

2.7,

Par

t 2 T

able

4.1

) G

OO

D (L

IGH

T)

FAIR

(MED

IUM

) PO

OR

(SEV

ERE

/ VER

Y SE

VER

E)

Surf

ace

Dis

tort

ion

W

heel

trac

k ru

tting

Th

e fo

rmat

ion

of lo

ngitu

dina

l dep

ress

ions

in th

e pa

vem

ent a

t the

loca

tions

of

the

whe

el tr

acks

of v

ehic

les

Rut

ting

< 10

mm

dee

p R

uttin

g 10

to 2

0 m

m

deep

R

uttin

g >

20 m

m d

eep

Loca

l Un-

derly

ing

Def

ects

Poth

oles

B

owl-s

hape

d ho

les

in th

e pa

vem

ent c

ause

d by

the

pene

tratio

n of

wat

er th

roug

h th

e pa

vem

ent a

nd s

ubse

quen

t hea

ving

of t

he p

avem

ent d

ue to

free

zing

of t

he

entra

pped

wat

er a

nd b

reak

ing

up o

f the

pav

emen

t due

to tr

affic

act

ion

<

10 m

m d

eep

10 to

20

mm

dee

p >

20 m

m d

eep

Prot

rusi

ons

(Del

amin

atio

ns)

Loca

l del

amin

atio

n is

vis

ible

as

prot

rusi

ons

or b

umps

(ofte

n ci

rcul

ar in

sha

pe)

< 10

mm

in h

eigh

t 10

to 2

0 m

m in

hei

ght

> 20

mm

in h

eigh

t

63

Exc

elle

nt C

ondi

tion

Goo

d C

ondi

tion

Fa

ir C

ondi

tion

Po

or C

ondi

tion

No

obse

rved

mat

eria

l de-

fect

s

Up

to 1

0% lo

ss o

f mat

eria

l fo

r em

bank

men

ts n

ot d

i-re

ctly

supp

ortin

g fo

unda

-tio

ns; o

r, up

to 5

% l

oss f

or

emba

nkm

ents

dire

ctly

sup-

porti

ng fo

unda

tions

10%

- 30

% lo

ss o

f mat

eria

l fo

r em

bank

men

ts n

ot d

i-re

ctly

supp

ortin

g fo

unda

-tio

ns; o

r 5%

to 1

5% lo

ss

for e

mba

nkm

ents

dire

ctly

su

ppor

ting

foun

datio

ns; o

r, lo

ss o

f mat

eria

l to

the

top

of fo

unda

tions

Mor

e th

an 3

0% lo

ss o

f mat

e-ria

l for

em

bank

men

ts n

ot

dire

ctly

supp

ortin

g fo

unda

-tio

ns; o

r, m

ore

than

15%

lo

ss fo

r em

bank

men

ts d

i-re

ctly

supp

ortin

g fo

unda

-tio

ns; o

r, lo

ss o

f mat

eria

l to

the

botto

m o

f fou

ndat

ions

Tabl

e 4.

8: E

mba

nkm

ents

CONDITI

ON

Page 39: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

62

Tabl

e 4.

7: D

rain

age

Syst

em

Exce

llent

Con

ditio

n G

ood

Con

ditio

n

Fair

Con

ditio

n

Poor

Con

ditio

n

No

obse

rved

mat

eria

l de

fect

s U

p to

20%

of i

ndiv

idua

l dr

aina

ge s

yste

m h

as

loos

e or

det

erio

rate

d co

m-

pone

nts,

con

nect

ions

or

fast

ener

s

20%

to 6

0% o

f ind

ivid

-ua

l dra

inag

e sy

stem

has

lo

ose

or d

eter

iora

ted

com

pone

nts,

con

nec-

tions

or f

aste

ners

Mor

e th

an 6

0% o

f ind

ivid

-ua

l dra

inag

e sy

stem

has

lo

ose

or d

eter

iora

ted

com

-po

nent

s, c

onne

ctio

ns o

r fa

sten

ers

B

roke

n pi

pe c

ompo

nent

s re

sulti

ng in

wat

er d

rain

ing

onto

sub

stru

ctur

e

CONDITI

ON

39

DEF

ECT

5.

ASP

HA

LT C

OVE

RED

CO

NC

RET

E D

ECK

(Par

t 1 S

ect.

2.7,

Par

t 2 T

able

4.6

)

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R

(S

EVER

E / V

ERY

SEVE

RE)

B

O T T O

M - U

P D E F E C T S

Wid

e Is

olat

ed

Cra

cks

Tran

sver

se,

long

itudi

nal

crac

ks

Long

itudi

nal –

par

alle

l to

the

dire

ctio

n of

trav

el,

and

gene

rally

loca

ted

at o

r ne

ar th

e ce

ntre

of t

he w

heel

trac

k ,

pave

men

t edg

e or

cen

tre-li

ne o

f brid

ge

Tran

sver

se –

acr

oss

pave

men

t eith

er fu

lly o

r par

tially

> 1

0 m

m w

ide

sing

le

crac

ks

Loca

l U

nder

ly-

ing

De-

fect

s

Poth

oles

B

owl-s

hape

d ho

les

in th

e pa

vem

ent c

ause

d by

the

pene

tratio

n of

wat

er th

roug

h th

e pa

vem

ent a

nd s

ubse

quen

t hea

ving

of t

he p

avem

ent d

ue to

free

zing

of t

he

entra

pped

wat

er a

nd b

reak

ing

up o

f the

pav

emen

t due

to tr

affic

act

ion

A

LL

Prot

rusi

ons

(Del

amin

atio

ns) Lo

cal d

elam

inat

ion

is v

isib

le a

s pr

otru

sion

s or

bum

ps (o

ften

circ

ular

in s

hape

)

A

LL

Patte

rn

Cra

cks

Map

, edg

e,

allig

ator

, ra

dial

A

LL

Inco

mpl

ete

sepa

ratio

n in

to o

ne o

r mor

e pa

rts w

ith o

r with

out s

pace

bet

wee

n

DEFECTS

Page 40: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

40

6.

ASP

HA

LT C

OVE

RED

CO

NC

RET

E D

ECK

S

GO

OD

(LIG

HT)

FA

IR (M

EDIU

M)

POO

R

(S

EVER

E / V

ERY

SEVE

RE)

T O

P - D

O

W

N D

E F E C T S

Bon

d

Def

ects

Lo

ss o

f bo

nd

Wid

espr

ead

loss

of b

ond

and

dela

min

atio

n m

ay o

ccur

bet

wee

n th

e as

phal

t pa

vem

ent a

nd d

eck

surfa

ce, b

etw

een

the

wat

erpr

oofin

g an

d th

e de

ck s

urfa

ce,

betw

een

the

wat

erpr

oofin

g an

d th

e as

phal

t pav

emen

t or b

etw

een

indi

vidu

al li

fts

of p

avem

ent

ALL

Rip

plin

g T

he fo

rmat

ion

of tr

ansv

erse

und

ulat

ions

in th

e pa

vem

ent s

urfa

ce c

onsi

stin

g of

cl

osel

y sp

aced

val

leys

and

cre

sts

ALL

Surf

ace

Def

ects

Rav

ellin

g P

rogr

essi

ve d

eter

iora

tion

and

loss

of t

he p

avem

ent m

ater

ial f

rom

the

surfa

ce

dow

nwar

d ALL

Slip

pery

Su

rfac

e M

ay re

sult

from

flus

hing

or f

rom

the

polis

hing

of t

he c

oars

e su

rface

agg

rega

tes

by th

e ac

tion

of re

petit

ive

vehi

cula

r tra

ffic

A

LL

DEF

ECT

DEFECTS

61

Exc

elle

nt C

ondi

tion

Goo

d C

ondi

tion

Fair

Con

ditio

n Po

or C

ondi

tion

Al

l Bon

d D

efec

ts (e

.g. r

ippl

ing,

loss

of

bon

d) in

asp

halt.

A

ll S

urfa

ce D

efec

ts (e

.g. r

avel

ling,

flu

shin

g, s

lippe

ry s

urfa

ce) i

n as

phal

t.

Al

l Sur

face

Dis

torti

ons

(whe

el tr

ack

rutti

ng) i

n as

phal

t.

C

ondi

tion

surv

ey if

the

area

of d

ete-

riora

tion

in th

is s

tate

>10

% if

not

al

read

y do

ne.

Bas

ed o

n Vi

sual

Insp

ectio

n of

Asp

halt

Not

es:

(1)

For a

ll ca

lcul

atio

ns, t

he a

ctua

l are

a sh

all b

e de

term

ined

for a

reas

con

tain

ing

num

erou

s cr

acks

(i.e

. alli

ga-

tor c

rack

s, ra

dial

cra

cks)

. Fo

r iso

late

d cr

acks

, 4 m

of c

rack

leng

th is

to e

qual

to 1

squ

are

met

re o

f def

ect

repa

ir ar

ea.

(2)

If a

brid

ge h

as b

een

rece

ntly

repa

ved

with

out r

ehab

ilita

ting

the

deck

, the

insp

ecto

r mus

t est

imat

e th

e co

n-di

tion

of th

e co

ncre

te d

eck

usin

g ot

her m

eans

. Thi

s w

ould

incl

ude

usin

g pr

evio

us in

spec

tion

info

rmat

ion,

th

e ag

e of

the

wat

erpr

oofin

g, d

eck

cond

ition

sur

vey

data

, etc

.

CONDITI

ON

Tabl

e 4.

6: C

oncr

ete

– To

p of

Dec

k B

enea

th A

spha

lt W

earin

g Su

rfac

e

Page 41: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

60

Exce

llent

Con

ditio

n G

ood

Con

ditio

n Fa

ir C

ondi

tion

Poor

Con

ditio

n

No

Asp

halt

Def

ects

. To

p-D

own

Asph

alt D

e-fe

cts

Bot

tom

-Up

Asph

alt D

efec

ts

Loca

l pro

trusi

ons

in a

spha

lt. A

ll Po

thol

es in

asp

halt.

Li

ght a

nd m

ediu

m

isol

ated

cra

cks

in

asph

alt.

Wid

e is

olat

ed c

rack

s in

as-

phal

t.

(Cra

cks

incl

ude:

long

itudi

nal

crac

ks, a

bove

loca

tion

of

void

s, e

dge

of b

eam

flan

ges,

jo

int b

etw

een

prec

ast u

nits

, co

nstru

ctio

n jo

ints

, etc

., or

tra

nsve

rse

crac

ks)

All

Patte

rn c

rack

ing

in

asph

alt

(e.g

. map

, alli

gato

r, ra

dial

, ed

ge c

rack

ing)

.

Bas

ed o

n Vi

sual

Insp

ectio

n of

Asp

halt

Tabl

e 4.

6: C

oncr

ete

– To

p of

Dec

k B

enea

th A

spha

lt W

earin

g Su

rfac

e

CONDITI

ON

41

DEF

ECT

6.

ASP

HA

LT C

OVE

RED

CO

NC

RET

E D

ECK

S G

OO

D (L

IGH

T)

FAIR

(MED

IUM

) PO

OR

(S

EVER

E / V

ERY

SEVE

RE)

T O

P - D

O

W

N

D

E F E C T S

Surf

ace

De-

fect

s

Flus

hing

Th

e m

igra

tion

of a

spha

lt up

war

ds to

the

pave

men

t sur

face

in p

ave-

men

ts w

ith to

o m

uch

asph

alt i

n th

e m

ix.

ALL

Surf

ace

Dis

-to

rtio

n W

heel

trac

k ru

tting

Th

e fo

rmat

ion

of lo

ngitu

dina

l dep

ress

ions

in th

e pa

vem

ent a

t the

loca

-tio

ns o

f the

whe

el tr

acks

of v

ehic

les

ALL

Ligh

t and

M

ediu

m

Isol

ated

C

rack

s

Isol

ated

cr

acks

and

Tr

ansv

erse

, lo

ngitu

dina

l cr

acks

Line

ar fr

actu

re e

xten

ding

par

tially

or c

ompl

etel

y th

roug

h th

e pa

vem

ent

< 10

mm

DEFECTS

Page 42: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

42

COATING

• Used to protect the underlying steel • Not as much an immediate concern, but a

durability concern • Three main categories of defects:

1. Coating related defect—related to the composition of the coating

2. Adhesion related defect—related to

the bond between the steel and coat-ing

3. Application related defect—poor ap-

pearance due to improper application

DEFECTS

59

Sta

ble

rela

tive

disp

lace

men

t be

twee

n pr

ecas

t uni

ts.

Leak

ing

betw

een

prec

ast

units

.

Act

ive

rela

tive

disp

lace

-m

ent b

etw

een

prec

ast

units

A

ll de

lam

inat

ed a

nd

spal

led

area

s

Act

ive

wet

are

as o

n so

ffit

with

out c

rack

s Ac

tive

wet

are

as o

r le

acha

te d

epos

its o

n so

ffit

with

ass

ocia

ted

crac

ks

Not

es: (1) F

or a

ll ca

lcul

atio

ns, t

he a

ctua

l are

a sh

all b

e de

term

ined

for a

reas

con

tain

ing

nu-

mer

ous

crac

ks (i

.e. p

atte

rn c

rack

s, m

ap c

rack

s).

For i

sola

ted

crac

ks, 4

m o

f cr

ack

leng

th is

to e

qual

to 1

squ

are

met

re o

f def

ect r

epai

r are

a.

(2) I

f she

ar c

rack

s ar

e fo

und

at g

irder

end

s, a

n ev

alua

tion

shou

ld b

e do

ne.

If cr

acks

ar

e w

ide,

the

insp

ecto

r sho

uld

mar

k “U

RG

EN

T” fo

r the

tim

efra

me

of th

e ev

alua

-tio

n. A

s w

ith o

ther

pot

entia

lly u

nsaf

e co

nditi

ons,

the

brid

ge o

wne

r sho

uld

e no

-tif

ied

if th

ese

crac

ks a

re n

otic

ed.

Con

ditio

n S

urve

y if

area

of

dete

riora

tion

in th

is s

tate

>1

0% fo

r sub

stru

ctur

es

Dec

k C

ondi

tion

Sur

vey

if ar

ea o

f det

erio

ratio

n in

this

st

ate

>10%

for s

uper

stru

c-tu

res

Tab

le 4

.5:

Con

cret

e –

Subs

truc

ture

s an

d Su

pers

truc

ture

s

CONDITI

ON

Page 43: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

58

Exc

elle

nt C

ondi

tion

Goo

d C

ondi

tion

Fa

ir C

ondi

tion

P

oor C

ondi

tion

No

obse

rved

mat

eria

l de

fect

s Li

ght s

calin

g M

ediu

m s

calin

g S

ever

e to

ver

y se

vere

sca

l-in

g, e

rosi

on a

nd d

isin

tegr

a-tio

n

Rus

t sta

ins

on c

on-

cret

e du

e to

cor

rodi

ng

reba

r cha

irs

Rus

t sta

ins

on c

oncr

ete

due

to

corr

odin

g re

info

rcin

g st

eel

Med

ium

to v

ery

seve

re c

or-

rosi

on o

f rei

nfor

cing

ste

el

S

urfa

ce c

arbo

natio

n (R

eact

ion

with

CO

2 ,

asso

ciat

ed d

isco

lour

-at

ion,

shr

inka

ge a

nd

crac

ks)

Sur

face

def

ects

suc

h as

stra

ti-fic

atio

n, s

egre

gatio

n, c

old

join

ts, a

bras

ion,

wea

r, sl

ippe

ry

surfa

ces,

wet

are

as a

nd s

ur-

face

dep

osits

(exc

ept o

n so

ffits

).

Li

ght h

oney

com

bing

an

d po

p-ou

ts

Med

ium

hon

eyco

mbi

ng a

nd

pop-

outs

S

ever

e to

ver

y se

vere

hon

-ey

com

bing

and

pop

-out

s

Hai

rline

and

Nar

row

cr

acks

M

ediu

m c

rack

s A

ll w

ide

crac

ks

Li

ght a

lkal

i-agg

rega

te

reac

tion

Med

ium

alk

ali-a

ggre

gate

reac

-tio

n S

ever

e an

d ve

ry s

ever

e al

-ka

li-ag

greg

ate

reac

tion

Tabl

e 4.

5: C

oncr

ete

– Su

bstr

uctu

res

and

Supe

rstr

uctu

res

CONDITI

ON

43

DEFECTS

Page 44: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

44

D

EFEC

T

7.

CO

ATI

NG

(PA

RT

1, S

ectio

n 2.

8 &

Par

t 2 T

able

4.4

)

G

OO

D (L

IGH

T)

FAIR

(MED

IUM

) PO

OR

(SEV

ERE

/ VER

Y SE

VER

E)

Rut

s c

ondi

tion

ratin

g is

a v

isua

l rat

ing

of th

e su

rface

app

eara

nce

and

is b

ased

on

ASTM

D61

0 sk

etch

es a

nd is

als

o sh

own

in A

ppen

dix

C a

nd O

SIM

Par

t 2, F

igur

e 4.

1 R

ust C

ondi

tion

Rat

ing

2 R

ust C

ondi

tion

Rat

ing

3

Rus

t Con

ditio

n R

atin

g 4

or m

ore

Coa

ting

Rel

ated

Def

ects

Che

ckin

g or

C

razi

ng

Fine

sys

tem

of m

inut

e cr

acks

in a

che

cker

boar

d pa

ttern

. C

ause

d by

wea

ther

ing

and

expo

sure

dur

ing

curin

g

A

LL

C

rack

ing

Li

near

pat

tern

of c

rack

pen

etra

ted

thro

ugh

coat

ing.

Res

ults

from

wea

ther

ing,

con

tinui

ng

poly

mer

izat

ion

or s

hrin

kage

ALL

Alli

gato

ring

La

rge

irreg

ular

che

cks

acro

ss s

urfa

ce.

Cau

sed

by n

on c

ompa

tible

laye

rs o

f coa

ting

and

hard

enin

g/sh

rinka

ge p

roce

ss

A

LL

C

hem

ical

At-

tack

C

oatin

g re

actin

g ad

vers

ely

with

air

born

e ch

emic

als

or a

ccid

enta

l spi

lls

A

LL

C

halk

ing

Po

wde

ry a

ppea

ranc

e of

coa

ting

surfa

ce.

Cau

sed

by re

actio

n of

coa

ting

resi

ns to

sun

light

an

d pr

oces

s of

wea

ther

ing.

ALL

Rus

t Con

ditio

n R

atin

g

57

CONDITI

ON

Figure 4.4b: Rust Condition Rating Categories for Coatings

Page 45: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

56

Exce

llent

Con

ditio

n G

ood

Con

ditio

n Fa

ir C

ondi

tion

Poor

Con

ditio

n

No

Obs

erve

d M

ater

ial

Def

ects

C

halk

ing

Che

ckin

g, c

rack

ing,

alli

-ga

torin

g

Inte

rcoa

t del

amin

atio

n,

peel

ing

(top

coat

onl

y)

Und

ercu

tting

, blis

ters

, pe

elin

g (p

rime

coat

), un

-de

rfilm

cor

rosi

on

Sig

ns o

f che

mic

al a

ttack

Ove

rspr

ay, r

uns,

sag

s,

pinh

olin

g B

ridgi

ng, e

dge

defe

cts,

sh

adow

s

RU

ST

CO

ND

ITIO

N**

R

ATI

NG

C

ATE

GO

RY

1

RU

ST C

ON

DIT

ION

**

RA

TIN

G

CA

TEG

OR

Y 2

RU

ST

CO

ND

ITIO

N**

R

ATI

NG

C

ATE

GO

RY

3

RU

ST

CO

ND

ITIO

N**

R

ATI

NG

C

ATE

GO

RY

4 or

hig

her

Coa

ting

Con

ditio

n S

urve

y is

requ

ired

if co

mbi

ned

area

in th

e Fa

ir an

d P

oor C

ondi

tion

Sta

tes

is

grea

ter t

han

25%

and

the

area

in th

e P

oor C

ondi

-tio

n S

tate

is le

ss th

an 1

0% *

**

Tabl

e 4.

4a:

Coa

ting*

- St

ruct

ural

Ste

el S

ubst

ruct

ures

and

Sup

er-

Stru

ctur

es

CONDITI

ON

45

DEF

ECT

7. C

OA

TIN

G (P

AR

T 1,

Sec

tion

2.8

& P

art 2

Tab

le 4

.4)

DEF

ECTS

* G

OO

D (L

IGH

T)

FAIR

(MED

IUM

) PO

OR

(SEV

ERE

/ VER

Y SE

VER

E)

Adh

esio

n

R

elat

ed

D

efec

ts

Und

ercu

tting

Spr

eadi

ng o

f cor

rosi

on u

nder

coa

ting

from

a b

reak

. C

ause

d by

poo

r sur

face

pr

epar

atio

n

B

liste

rs

Dom

e sh

aped

pro

ject

ions

of c

oatin

g. C

ause

d by

sol

vent

or w

ater

trap

ped

with

in p

aint

film

Inte

rcoa

t D

elam

inat

ion

One

coa

t sep

arat

es fr

om a

noth

er.

Cau

sed

by c

onta

min

ated

sur

face

s or

ex

cess

ive

curin

g be

twee

n co

ats

Pe

elin

g

Sep

arat

ion

of c

oatin

g fro

m s

teel

due

to p

oor a

dhes

ion

Cor

rosi

on u

nder

the

coat

ing

with

the

help

of f

rom

a b

reak

. C

ause

d by

poo

r pr

epar

atio

n or

por

ous

coat

ing

Und

erfil

m

Cor

rosi

on

A

LL

A

LL

ALL

A

LL

A

LL

DEFECTS

Page 46: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

46

DEF

ECT

7. C

OA

TIN

G (P

AR

T 1,

Sec

tion

2.8

& P

art 2

Tab

le 4

.4)

DEF

ECTS

* G

OO

D (L

IGH

T)

FAIR

(MED

IUM

) PO

OR

SEV

ERE

/ VER

Y SE

VER

E)

Brid

ging

C

oatin

g br

idge

s ac

ross

tigh

t cor

ner o

r deb

ris fo

rmin

g vo

id.

Voi

d ca

n tra

p m

oist

ure

and

oxyg

en

Ed

ge D

efec

ts C

oatin

g pu

lls a

way

from

sha

rp e

dges

and

cor

ners

. D

ue to

insu

ffici

ent

appl

icat

ion

of c

oatin

g at

edg

e

Shad

ows

C

oatin

g is

app

lied

too

thin

in th

e sh

adow

of a

rive

t, bo

lts, o

r oth

er a

brup

t cha

nge

in s

urfa

ce

Ove

rspr

ay

Som

e pa

int p

artic

le o

utsi

de s

pray

pat

tern

dry

prio

r to

full

coat

ing.

Lea

ds to

so

me

abso

rbed

sol

vent

and

a m

ore

poro

us s

urfa

ce

ALL

App

licat

ion

Rel

ated

D

efec

ts

A

LL

ALL

ALL

DEFECTS

55

Tabl

e 4.

3: C

oatin

g* –

Ste

el R

ailin

gs

Exce

llent

Con

ditio

n G

ood

Con

ditio

n Fa

ir C

ondi

tion

Poor

Con

ditio

n

RU

ST

CO

ND

ITIO

N**

R

ATI

NG

C

ATE

GO

RY

1

RU

ST

CO

ND

ITIO

N

RA

TIN

G

CA

TEG

OR

Y 2

RU

ST

CO

ND

ITIO

N

RA

TIN

G

CA

TEG

OR

Y 3

RU

ST

CO

ND

ITIO

N

RA

TIN

G

CA

TEG

OR

Y 4

or h

ighe

r

* G

alva

nize

d el

emen

ts a

re in

clud

ed u

nder

the

“Coa

ting”

cat

egor

y **

Rus

t Con

ditio

n R

atin

gs a

re s

how

n in

Fig

ure

4.1.

For

add

ition

al in

form

atio

n, s

ee th

e S

truc-

tura

l Ste

el C

oatin

g M

anua

l. **

* In

orde

r to

cons

ider

ove

rcoa

ting

as a

via

ble

reha

bilit

atio

n op

tion,

a d

etai

led

cond

ition

sur

-ve

y sh

ould

be

trigg

ered

bef

ore

dete

riora

tion

is to

o w

ides

prea

d.

CONDITI

ON

Page 47: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

54

Exce

llent

C

ondi

tion

Goo

d

Con

ditio

n

Fair

C

ondi

tion

Po

or

Con

ditio

n N

o O

bser

ved

Mat

e-ria

l Def

ects

H

airli

ne c

rack

s in

ela

stom

eric

pad

s N

arro

w to

med

ium

cra

cks

in

elas

tom

eric

pad

s V

ery

wid

e cr

acks

in e

last

omer

ic p

ads

and/

or s

teel

pla

tes

debo

nded

Li

ght b

ulgi

ng o

r she

ar d

efor

mat

ions

in

elas

tom

eric

pad

s, o

r lig

ht lo

cal

defo

rmat

ion

of ro

ller/r

ocke

r pla

tes

Med

ium

bul

ging

/she

ar d

efor

mat

ions

in

ela

stom

eric

pad

s, o

r med

ium

loca

l de

form

atio

n of

rolle

r/roc

ker p

late

s

Sev

ere

bulg

ing/

shea

r def

orm

atio

ns

in e

last

omer

ic p

ads,

sev

ere

loca

l de

form

atio

n of

rolle

r/roc

ker p

late

s

Ligh

t sco

ring/

scra

tche

s in

TFE

or

stai

nles

s st

eel

Med

ium

sco

ring/

scra

tche

s in

TFE

or

stai

nles

s st

eel

Sev

ere

scor

ing/

scra

tche

s or

rips

and

te

ars

in T

FE o

r sta

inle

ss s

teel

Li

ght C

orro

sion

M

ediu

m C

orro

sion

S

ever

e an

d ve

ry s

ever

e co

rros

ion

and

or c

rack

s in

ste

el

A

ncho

r bol

ts s

light

ly b

ent

Anc

hor b

olts

sev

erel

y be

nt/c

rack

ed

Anc

hor b

olts

are

bro

ken

G

uide

bar

s an

d th

rust

pla

tes

slig

htly

wor

n G

uide

bar

s an

d th

rust

pla

tes

mod

er-

atel

y w

orn

Gui

de b

ars

and

thru

st p

late

s se

-ve

rely

wor

n an

d/or

loos

e or

mis

sing

nu

ts

U

p to

5%

of b

onde

d sl

idin

g su

rface

is

debo

nded

5%

to 2

0% o

f bon

ded

slid

ing

surfa

ce

is d

ebon

ded

Ove

r 20%

of b

onde

d sl

idin

g su

rface

is

deb

onde

d

Inte

rnal

ly c

onfin

ed c

ompr

essi

on m

a-te

rial i

s sq

ueez

ing/

sque

ezed

out

Tabl

e 4.

2: B

earin

gs

CONDITI

ON

47

DEF

ECT

7. C

OA

TIN

G (P

AR

T 1,

Sec

tion

2.8

& P

art 2

Tab

le 4

.4)

DEF

ECTS

* G

OO

D (L

IGH

T)

FAIR

(MED

IUM

) PO

OR

(SE

VER

E / V

ERY

SEVE

RE)

A

pplic

atio

n R

elat

ed

Def

ects

Pinh

olin

g

Air

bubb

les

trapp

ed in

coa

ting

crea

ting

void

s. C

ause

d by

hol

ding

spr

ay g

un to

o cl

ose

ALL

R

uns

D

ownw

ard

mov

emen

t of p

aint

. C

ause

d by

ove

r-th

inni

ng o

r dep

ositi

ng to

o m

uch

pain

t at o

ne ti

me

ALL

Sags

S

imila

r to

runs

, the

dow

nwar

d m

ovem

ent o

f ‘cu

rtain

’ of p

aint

ALL

Pi

npoi

nt

Rus

ting

R

ustin

g vi

sibl

e at

poi

nt lo

catio

ns.

Cau

sed

by in

suffi

cien

t coa

ting

thic

knes

s on

pe

aks

of b

last

cle

aned

sub

stra

te

Rat

e ba

sed

on a

ppea

ranc

e an

d R

ust C

ondi

tion

Rat

ing

DEFECTS

Page 48: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

48 53

Exc

elle

nt C

ondi

tion

Goo

d C

ondi

tion

Fa

ir C

ondi

tion

P

oor C

ondi

tion

No

Obs

erve

d M

ate-

rial D

efec

ts

Ligh

t cra

ckin

g M

ediu

m c

rack

ing

Sev

ere

to v

ery

seve

re

crac

king

Ligh

t rav

ellin

g M

ediu

m ra

velli

ng

Sev

ere

and

very

sev

ere

rave

lling

A

ll ar

eas

with

loss

of

bond

Ligh

t Pot

hole

s M

ediu

m P

otho

les

Sev

ere

and

very

sev

ere

poth

oles

Ligh

t whe

el tr

ack

rut-

ting

Med

ium

whe

el tr

ack

rutti

ng

Sev

ere

and

very

sev

ere

whe

el tr

ack

rutti

ng

Li

ght R

ippl

ing

Med

ium

Rip

plin

g S

ever

e an

d V

ery

Sev

ere

Rip

plin

g

Ligh

t Flu

shin

g M

ediu

m F

lush

ing

Sev

ere

and

very

sev

ere

flush

ing

For a

ll ca

lcul

atio

ns, t

he a

ctua

l are

a sh

all b

e de

term

ined

for a

reas

con

tain

ing

num

erou

s cr

acks

(i.e

. al

ligat

or c

rack

s, ra

dial

cra

cks)

. Fo

r iso

late

d cr

acks

, 4 m

of c

rack

le

ngth

is to

equ

al to

1 s

quar

e m

etre

of d

efec

t rep

air a

rea.

Tabl

e 4.

1: A

spha

lt W

earin

g Su

rfac

e

CONDITI

ON

Page 49: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

52

CONDITI

ON

APPENDIX C: MATERIAL CONDITION STATE TABLES (Part 2, Section 4) Four Condition States have been defined for bridge elements, namely, Excellent, Good, Fair and Poor. The condition of bridge elements is defined to be in any one or more of these Condition States. The “severity and extent” philosophy is used where, for each bridge element, the inspector assesses and records the amount (area, length or unit as appropri-ate) of the element in each of the four Condition States.

49

Element List and Condition State Cross Reference Table (Part 2, Ta-

ELEMENT

APPENDIX B

Page 50: FieldGuide Draft 5-New2 - ogra FieldGuide April 2008.pdfof the “Ontario Structure Inspection Manual (OSIM). It summarizes the major parts of the main manual including inspection

50

Element Group Element Name 6,7,8 Unit for Quantity 1,2,3,4

Applicable Condition State Table Number 5

Abutments Abutment walls Sq.m. 4.5, 4.11, 4.19

Ballast walls Sq.m. 4.5, 4.11, 4.19 Bearings Each 4.2 Wingwalls Sq.m. 4.5, 4.11, 4.19

Accessories (Attachments & Signs)

Bridge Mounted Sign Supports 9

Each 4.12

Electrical 9 Each 4.12 Noise Barriers m10 4.12 Other Each 4.12 Signs Each 4.12 Utilities Each 4.12

Approaches Approach slabs Sq.m. 4.5, 4.6 Barriers 9 m10 4.17, 4.19 Curb and Gutters m. 4.5 Drainage System Each 4.7 Sidewalk/Curbs Sq.m. 4.5 Wearing surface Sq.m. 4.1, 4.5, 4.6

Barriers Barrier/Parapet Walls Sq.m. 4.5 Hand Railings m. 10 4.17 Posts Each 4.5, 4.16, 4.19 Railing Systems m. 10 4.17, 4.19

Beams/Main Longitu-dinal Elements

Diaphragms Each (Sq.m if Concrete)

4.5, 4.15, 4.16, 4.19

Floor beams Sq.m. 4.5, 4.16, 4.19 Girders Sq.m. 4.5, 4.15, 4.16, 4.19 Inside boxes (sides & bottom)

Sq.m. 4.5 , 4.15

Stringers Each 4.5 , 4.16, 4.19 Bracing Bracing Each 4.15, 4.16, 4.19 Coatings Railing Systems /

Hand Railings Sq.m. 4.3

Structural Steel Sq.m. 4.4 Culverts Barrels Sq.m. 4.5, 4.14

Inlet Components Sq.m. 4.5 Outlet Components Sq.m. 4.5

Decks Deck Top Sq.m. 4.5, 4.6, 4.19 Drainage System Each 4.7 Soffit – Inside Boxes Sq.m. 4.5 Soffit – Thick slab Sq.m. 4.5 Soffit – Thin Slab Sq.m. 4.5, 4.19 Wearing Surface Sq.m. 4.1

Embankments & Streams

Embankments Each 4.8 Slope protection Each 4.13 Streams and Water-ways

All 4.18

Foundations Foundation (below ground level)

N/A Rate performance only.

Joints Armouring/retaining devices

m. 4.9

Concrete end dams Sq.m 4.5 Seals/sealants each 4.10

Table 2.1: Element List and Condition State Cross Reference Table

ELEMENT

51

Element Group Element Name 6,7,8 Unit for Quantity 1,2,3,4

Applicable Condition State Table Number 5

Piers Bearings Each 4.2 Caps Sq.m. 4.5, 4.11, 4.16, 4.19 Shafts/columns/Pile Bents

Sq.m. 4.5, 4.11, 4.16, 4.19

Retaining walls Barrier Systems on walls

Sq.m. 4.5, 4.17, 4.19

Railing Systems m10 4.17, 4.19 Drainage Systems All 4.7 Walls Sq.m. 4.5

Sidewalks/curbs Curbs Sq.m. 4.5 Sidewalks and medi-ans

Sq.m. 4.5

Trusses/Arches Bottom chords Sq.m. 4.5, 4.16, 4.19 Connections Each 4.16, 4.19 Top chords Sq.m. 4.5, 4.16, 4.19 Verticals/diagonals Sq.m. 4.5, 4.16, 4.19

Notes: 1 – For “All”, place the entire component (100%) in one condition state. 2 – For “Each”, give the number of occurrences of the component in each state. 3 – For cracks in concrete, estimate repair area (4m of crack = 1 sq. m of repair). 4 – For cracks in steel, estimate required repair area. 5 – Tables given are typical for element. Use appropriate table for applicable material. (See Section 4). 6 – Sub-elements (End/Middle) to be used for the following elements at expansion joint locations: Deck Top, Girders, Inside Boxes Sub-elements (End/Intermediate) to be used for the following elements at

expansion joint locations:: Floor Beams, Stringers, Bracing and Dia-phragms

Sub-elements (End/Interior/Exterior) to be used for Soffits Sub-elements (Interior/Exterior) to be used for Barrier/Parapet Walls 7 – For an explanation of which bridge components are included in each element, see Table 3.1. 8 – Similar element types should be grouped together (e.g. I-girders, x-frames, etc.) 9 – Optional element. Not required for MTO use 10 – For these elements that are inspected by linear metre, a defect in the post shall be assumed to affect the tributary area for that post.

ELEMENT