GILA COU,'VTY STANDARDS

FOR WALLS RETAINING EARTH

RETAINING WALLS 4'-0" or less from bottom of footing to top of No plans or permit required. retaining wafl.

---

More than 4 '_0" from bottom of footing to Plans and permit required. top o(retaining wall. Walls of any height retaining 4'-0" of earth Plans, permit & engineering required. or more.

BASEMENT WALLS Walls retai[1ing less than 4'-O"of earth. Plans and permit requi(ed. Walls retaining 4'-0" of earth or more. Plans, permIt and engineering required.

NOTE

The designs contained in this handout are engineered. Other engineered designs may be acceptable.

INDEX

1" Reinforced Concrete Retaining Wall 2. Concrete Masonry Unit Retaining Wall 3. Alternate Concret~ Masonry Uni~ Retaining Wall 4. Reinforced Concrete Basement Wall 5. Concrete Masonry Unit Ba"sement Wall ...... Standard Footing 6. Concrete Masonry Unit Basement Wall - Monolithic,Footing

10f6

7115/97 Revised 4/30102

Revised 7129102 Revised 7121103

GfLA COUNTY STAt\IDARD CD REfNFORCED CONCRE-rE RETA't\flNG WALL

h A B c-4' 1'-411 1'-011 2'-411

5' f-411 1'-611 2'-10" 6' 1'-71 2'-2" 3'-911

7 1'-10'1 2'-611 . 4'-4"

8' 2'-1" 2'-1011 4'-1111

NOTES

1) 28 day concrete strenth 2500 p.B.t min. 2} All reinforcing to be 40 grade min. 3) Rebar splices to be lapped a minimum of 1211

for #4 bars and 1GII for #5 bars.

V

#4@ 1611 O.C.

#4@16"O.C.

#4@ 1611 D.C. #5 @ 1611 D.C.

#5 @ 10" D.C.

4) Backfill ma"terial to be granular and free draining. 5) Footings to be placed on undisturbed or

compacted. moisture conditioned soi/. Soft. s pon~y or wet solis are nat to be used for . foundation soils. An allowable soil pressure of 1500 psf minimum is assumed.

6) Tie vertical rebar to accurately malnt-ain the position shown.

11/2'1 DIA. WEEPHOLES

@ 1611 O.C.

H F

#4 @ 1211 O.C, (4) #4 #4@ 12/1 O,C. (4) #4

#4 @ 1211 D.C. (5) #4 #4 @ 1211 D.C. (5) #4

#4@ 12" D.C. (5) #4

COARSE, CLEAN GRAVEL WItHIN 121.1 OF WEEPHOLE

r::rIr-:diTttrlrT'il:Ilr"------I..,.,... II--I~~..........---, -------.-T~~ . N

F----3~~:~'i~::~-____'t_-_T_' -__ ~{tD ___ ~~ 5TH REBAR FOR "FH

WHEN REQUIRED

SCALE: 1/2" = 1'-011

#4 REBAR-SPACING fO MATCH "V I

CONCRETE FOOTlNG

12-14-01

" 1

GILA COUNTY STANDARD ® CONCRETE MASONRY Uf\jfT RET Afi\JfNG WALL DESIGN

h A B C

4' 1'-411 1'-011 2'-411

5' 1'-4'1 1'-611 2'-10'1

6' 1'-7" 2'-211 3'-9" 7 1'-10'·' 2'-6'1 4'-411

8' 2'-111 2'-10" 4'-11"

NOTES

1) 28 day cOl1crete strerrth 2500 p.s.t min. 2) All reinforcln~ to be 40 grade min. 3) Class S mortar. . 4) Use coarse grout 28 day strength 2000 psi. 5) Joint reinfo-rcing to be #9 5ide wIres @ 16" D.C.

(Duro-Wal or equal). 6) Rebar splices "to be IappM a minimum of20tf

for #4 bars and 25" for #5 bars .

W 8'1

8"

12"

1Z' 12'1

. 7) Backfill material to be granular and free draining. 8) Footing to be pLaced on undisturbed or

compacted, moisture conaitIof1ed soil. Soft. spongy or wet soils are not to be used for foundation soils. An allowable soil pressure of 1500 psfminimum is assumed.

9) Tie vertical rebar to accurately maintain the position shown.

FULL GROUT 1YP.

OMI! HEAD JOINf IN FIRSf COURSE @ 32" D.C.

V

#5@321l D.C. #5 @3211 O.C.

#5 @ 24" O.C. #5 @ 2411 04C,

#5 @16 11 O.C.

~--

H F

(2) #4 (4) #4

(2) #4 (4) #4

(2) #5 (5) #4 (2) #5 (5) #4

(2) #5 (5) #4

4i-0" MAX. VERTICALLY BETWEEN BOND BEAMS

COARSE, CLEAN GRAVEL WlfHlN 12Jl OF WEEPHOLE

Jl--L-l=il~...Joo.L.IoI........., ---~,.>or~----+ ~ N

F--~~~~~:~~ __ ~~ ____ ~{~ ____________ ~{ 5TH REBAR FOR "F'I #4 REBAR

WHEN REQUIRED @ 1611 O.C. MAX.

CONCRETE FOOTING

12-14-01

CONCRETE MASONRY UNIT RETAINfNG WALL DESIGN

DESfGN FOR 7-0" TALL FREESTANDING WALL

NOTES SEE GILA COUNTY STANDARDS­FOR DETAILS NOT SHOWN 1) 28 day concrete strenth: DesIgn 2500 psi

Specify 3000 psi. 2) Coarse grout 2000 psi 3) All reinforcing to be 40 grade min. 4) Rebar splices to be lapped a minimum of 20"

for #4 bars and 25" for #5 bars. 5) Backfill materiat to be granular and free draining. 6) PrOVide foundation drainage as reqUired. 7) Provide positive grade drainage. 8) Footings to be placed on undisturbed or

compacted, moisture conditioned soil. Soft, _ -spongy or wet soils are not to be used for foundation soils. An allowabfe soil pressure of 1500 psf minimum is assumed.

9) Protect walls from moisture penetration, 10) - Tie vet1;ical rebar to accurately maintain

the position shown. -a

I

lo

#5@ 24" D.C.

8 J1 CMU FULL

GROUT'

1211 CMU

8" ij 2" TO BAR CENTERLINE

GRADE

(3) BOND BEAMS -"~---l-- Wi (2) #4 EACH

OMIT HEAD JOINr MORTAR, FIRSr COURSE @ 3211 O.C.

a FU LL _ I------+-i

COARSE, CLEAN GRAVEL AND FILTER FABRIC

GRADE

I

N GROUT 2X4 KEY

3" COVER

SCALE: 11211 == 1'-011

1112" COVER

J

#4 BARS AS SHOWN

#4 @ 1211 O.C

GJLA COUt\jTf S-rANDARD

REINFORCED CONCRETE BASEMENT WALL LIMITS: 1, Maximum of two (2) stories above and/or a 40' roof span.

2. Floor openings (stairwells) adjacent to this wall are limited to 4'-0" wide r:naximum.

3. WaH.openings (windows and doors) are limited to 4'-011 wide maximum provided vertical reinforcement is not red uced.

4. These limits apply only to those portions of walls retaining 4' of earth o~ more.

h V H B

4' #4@ 16H O.C. #4 @12110.C. 11211 X 1011 @ 4'-011 O.c.

5' #4@ 16 I1 O.C. #4 .@ 1211 O.C. 1J211 X 1011 @ 4'-011 D.C.

: 6' #4 @ 1611 D.C. #4@12110.C. 3J411 X 1011 @ 4'-0 11 O.c.

i7 #4@ 1211 D.C. #4· @ 1211 O.C. 3/4" X 10" @ 2i_811 O.c.

8' #4@ 1011 O.C. #4 @12110.C . . 3J411 X 1011 @ 1'-811 D.C.

FLOOR JOIST" NOrES

1) 28 day concrete strenth 2500 p.s.i. min. 2) All reinforcing to be 40 grad8 min. 3) Rebar splices to be lapped a minimum of 1211

for #4 ba·rs and 1011 for #5 bars. 4) Backfill material to be granular and free draining. x 5) Provide founda-Cion drainage as reqUired. ~ 6) Provide positive grade drainage. 7) Footings to be placed on undisturbed or

compacted~ moisture conditioned soil. Soft, spongy or wet soils are not to be used for foundation soils. An allowable soil pressure of 1500 psf minimum is assumed.

8) Protect walts from moisture penetration. 9) Tie vertical rebar to accurately maintain

the position shown. .

b I

Co

v

ct I I

FRENCH DRAIN

CONCREtE FOOTING

(2) #5 ~EBAR CONTINUOUS

12-14-01

® GfLA cOut~TY STAND/\RD

CONCRETE MASONRY UNIT BASEMENT WALL LIMlfS: 1. Maximum of two (2) stories above and/or a 40' roof span. 2. Floor openings (stairwells) adjacent to this wall are limited to 4'-011 wide maximum.

3. Wall openings (windows and doors) are limited to 4'-011 wide maximum provided vertical

reinforcement is not reduced.

4. These limits apply only to those portions of waifs retaining 4' of earth or more.

I h V W d B 4' #5 @ 32"0.C. 8" 33/4" 1J2" X 1011 @ 4'-011 D.C.

5' #5 @ 32110.C. 8 11 33J411 11211 X 1011 @ 4'-011 O.C.

6' #5@ 32"0.C. 8" 511211 3/4" X 1011 @ 4'-011 O.C.

7 #5 @ 24110.C. 8 11 511211 3/4" X 10" @ 2'-811 O.c.

8' #5 @ 24110.C. 1011 7" 31411 X 10" @ 1'-811 O.C.

NOTES

1) 28 day concrete strenth 2500 p.s.L min. 2) All reinforcing to be 40 grade min. 3) Class S mortar 4) Use coarse grout 28 day strength 2000 p.s.i. 5) Joint reinforcing to be #9 side wire at 1,611 O.C. x

(Duro-Wal or equal). ~ 6) Rebar splices to be lapped a mfnimum of 20" for a

for #4 bars and 271 for #5 bars. .. t 7) Backfill material to be granular and free draining. c()

8) Provide foundation drainage as reqUired. 9) Provide positive grade drainage. 10) Footings to be placed 011 undisturbed or

compacted~ moisture conditioned soil. Soft. spongy or wet soils are not to be used for foundatlon solis. An allowable soH pressure· of 1500 psf minimum i5 assumed. Protect walls from moisture penetration. fie vertical rebar to accurately maintain "the position shown.

FLOOR JOIST i FULL

GROUr 1YP.

v

d

ON D BEAM WITH (2) #4 REBAR @

4'-0" & 8'-011

fRENCH DRAIN

~...u. ·l1F NO FLOOR, "h" IS ~AEASURED TO HERE

CONCRETE FOOTING

(2) #5 REBAR CONTINUOUS

SCALE: 11211 = 1'-011

12-14-01

GILA CO'UN'TY STANDARD ®

LIMITS:

CONCRETE MASONRY UNIT BASEMENT WALL (FOR MONOLITHfC PLACEMENT)

t Maximum of two (2) storie;;, a_bove; and/or ~ 40' roof span. Z. Floor o.penings,-Cstalrwells) adjace.t1t to this walJ are limited to 4'~OIl wide maximum." 3, WaH openings (windows and doors) are fImited to 4'-0" wide maximum provided v~rtical

reinforcement Is not reduced.

4. These limits apply only to ~ose portions of waifs retaining 4' of earth or 1't!Ot:'8.

h V W d B

4 1 #5@32I1 O.C. Btl 3514" 11211 X 1011 @ 4'_0" O.C.

5' #5 @ 32u O.C. 8 t1 3314" 1/2" X 1011 @ 4'-011 O.C.

6' #5@ 32"0.C. EY J 511211 314" X 10" @ 4' ~al O.C. .

7 #5 @ 24110.C. 8 11 51/2" 314" X 10" @ 2'-8" O.C.

8' #5@ 24110.C. 10u 7" 3/411 X 1011 @ 1'-811 O.C.

NOTES

1) 28 day concrete 6trenth 2500 p.G.!. min. 2) All reinforcIng to be 40 grade min. 3} Class '5 mortar 4) Use coa rse grout 28 day strength 2000 p.G.l. 5) Joint reinforcing to be #9 ~lde wire at 16" O.e.

(Duro~Wal or equal). 6) Rebar 6plice6 to be lapped a minImum of 20" for

for #4 bars and 271 for #5 bars. 7) Backfill material to be granular and free draIning. 8) Provide foundation drainage as rt::qulred. 9) Provide positive grade draInage. 10) Footlt1gs to be placed on undisturbea or

compacted, moisture conditioned soil. Soft. SPOtlgy or wet solis are not to be used for foundation soils. An allowable soil pre66ure of 1500 p6f minimum is assumed.

11) Protect walls from moisture penetratiot1. 12) Tie vertical rebar to accurately maintain

the posltlon shown.

x « :2 a

I .

C{)

FLOOR JOIST I BOND BEAM WITH

(2) #4 REBAR @

4'-011 & 8'-0" ---------'1<-\. .

SCALE! 1/2" = f-Oll

= z

FRENCH DRAIN

(.0-2

CONCRElE FOOTING

#3 REBAR @ 32" D.G.

(3) #4 REBAR CONTINUOUS

12-14-01