Luni River

Luni Bridge

Guide Bund Guide Bund

Luni Bridge

Project Details

1. Location : NH-15 (Jaisalmer-Barmer-Sanchore Section) Km. 258 - 259 (0/0 at Jaisalmer)

2. Length : Major Bridge – 754 Mtr.

3. Sanctioned Amount : 710.24 Lacs

4. Scope of Work : Rehabilitation of Luni Bridge including RCC jacketing to piers and pier caps, replacement of expansion joints, wearing coat, damaged railing and epoxy painting etc.

5. Period of Completion : 8 Months

History of Luni Bridge

1. Year of Construction : I Phase – 1970 (12 Spans)II Phase – 1977 (12 Spans)

2. Total Length 754 m

3. Total Spans 24 (32.24 m)

4. Nature of major damages a. Wide Cracks in piers and pier capsb. Cracks in Deck Slabc. Expansion joints – completely non

functionald. RCC Wearing Coat Damaged e. Railing Damagedf. Scouring Near Piers

Technical Proposals

1. Wide Cracks in piers and pier caps

: 25 cm. RCC Jacketing.

2. Cracks in Deck Slab : Repair with epoxy grout and applying apoxy mortar.

3. Expansion joints – completely non functional

: Replacement of expansion joints by strip seal joints.

4. RCC Wearing Coat Damaged

: BC with mastic asphalt.

5. Railing Damaged : Replacement with steel railing

6. Scouring Near Piers : Boulders / Quarry stone apron

List of Plant & Equipment to be deployed on Contract Work

SI. Type of EquipmentMaximum age as

on 1/1/2010

Contract Package Size

Upto Rs. 50Million

Rs. 51-200Million

Rs.201-500Million

Rs. 501-1000 Million &

Above

1 Tipper Trucks 5-7 5

2 Motor Grader 5 1

3 Front end Loader 5 1

4 Smooth Wheeled Roller 5 2

5 Vibratory Roller 5 1

6Hot Mix Plant with Electronic

Controls (Minimum 40-60 TPH Capacity)

5 1

7 Paver Finisher 5 1

8 Water Tanker 5 3

9 Bitumen Sprayer 5-7 1

10Concrete Mixes with Integral

Weigh Batching facility5 1

11Concrete Batching and Mixing

Plant (Minimum. Capacity - 15m3/hour)

5 1

Total 25As per MoRTH Circular Dt.

27.11.2009

CONSTRUCTION PROGRAME OF PROJECT

1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2Sept '10 Oct '10

S.N. 3 3 5 6

9Stone pitching on slopes

10 Byepass-Earth Work/GSB and WBM

7 Structural steel work

8Boulder/ quarry stone apron

RCC Grade M-35 for jacketing

Applying two coats of epoxy

6 Slab seal type of expansion joint

2

3

Mar '11Dec '10 Jan '11

1

7 8

Guinting on Concrete

5Mastic asphalt wearing course

4Removal of existing wearing coat

2Nov '10 Feb '11

13 Miscellaneous Work

ITEM / DESCRIPTION

9 M O N T H S1

Aug. '10

11Byepass - Carpet

12 Singages and marking etc

S.N. Major Item BSR Rate Rate as per

present market Difference

in % Remark

1 Guinting on Concrete 1057.00 p/sqm 1477.00 p/sqm 39.73 Higher rate due to distant location and

specialized nature of work

2 25mm Mastic Asphalt 420.00 p/sqm 504.00 p/sqm 20.00 Due to increase in cost of mastic

asphalt and remote location of bridge

3M-30 Grade concrete for jacketing

3779.00 p/cum 4775.00 p/cum 26.35

More lead of material, remote location, less quantum of work, more cost of shuttering and specialized nature of

work

4 Stone Masonry 2353.00 p/cum 2701.00 p/cum 14.78 More lead of material stone and bajri

5Boulders / quarry stone apron

1253.00 p/cum 1544.00 p/cum 23.22 More lead of stones

6 Stone Pitching 628.00 p/cum 947.00 p/cum 50.70 More lead of stones

7 WBM 727.00 p/cum 1067.00 p/sqm 46.76 More lead of all materials

Variation in BSR & Present Market AnalysisVariation in BSR & Present Market Analysis

Amount of Unbalanced BID

Cost of Work as per Rate Analysis = 713.19 Lacs

Cost of Work offered by Bidder = 644.84 Lacs

Unbalance Bid Amount = 68.35 Lacs

% difference between lowest offer and Rate Analysis Amount

= 9.58%

Thank You.