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Foot Over Bridge (FOB) — Pedestrian

Pedestrian FOB per IRC 99 + RDSO Manual: steel truss or RCC superstructure 15-40 m clear span, 2.0-3.0 m walkway width, sheltered MS-sheet roof, MS handrails both sides, RCC landing pads on both abutments, dual staircases (3.0 m wide, with intermediate landings every 8 risers) OR ramp + small lift for accessibility. Standard configuration for urban road crossings + railway station + nallah pedestrian access. Rates: CPWD DSR Vol 1 (2023).

Visual confirmation
Plan · 25 m span × 2.5 m walkway
road / railway belowSTAIRLIFTSTAIRLIFTWALKWAY25 m clear span2.5 m
Elevation · 25 m clear span at 5.5 m height
NGLroad / railway belowLL25 m5.5 m
Walkway cross-section · 2.5 m wide, steel truss superstructure
WALKWAY 2.5 mGI sheet roof2.5 m
Bill of Quantities17 items · CPWD DSR Vol 1 (2023)
#CodeDescriptionUnitQtyRate (₹)Amount (₹)
12.8.1Excavation SupportsEarth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, for all lift, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. — All kinds of soil.Cum27.00260.307,028.10
24.1.8Pcc BedProviding and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : — 1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)Cum1.806,812.0012,261.60
35.1.2Rcc Support FootingsProviding and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : — 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)Cum9.009,045.7581,411.75
45.22.6Footing SteelSteel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. — Thermo-Mechanically Treated bars of grade Fe-500D or more.Kg900.00107.8597,065.00
510.1.1Ms Support Columns[item not found: 10.1.1]1,540.000.000.00
SOR item dsr_vol1_2023:10.1.1 not in private subset — regenerate via scripts/boq-import-sor-subset.mjs
610.1.1Steel Truss Superstructure[item not found: 10.1.1]3,500.000.000.00
SOR item dsr_vol1_2023:10.1.1 not in private subset — regenerate via scripts/boq-import-sor-subset.mjs
712.1.2Ms Deck Chequered Plate[item not found: 12.1.2]62.500.000.00
SOR item dsr_vol1_2023:12.1.2 not in private subset — regenerate via scripts/boq-import-sor-subset.mjs
85.3Deck Concrete ToppingReinforced cement concrete work in beams, suspended floors, roofs having slope up to 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth level up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).Cum4.6911,505.5053,960.80
95.22.6Superstructure SteelSteel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. — Thermo-Mechanically Treated bars of grade Fe-500D or more.Kg0.00107.850.00
105.3Rcc StaircaseReinforced cement concrete work in beams, suspended floors, roofs having slope up to 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth level up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).Cum23.4011,505.502,69,228.70
115.22.6Staircase SteelSteel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. — Thermo-Mechanically Treated bars of grade Fe-500D or more.Kg2,574.00107.852,77,605.90
125.3Landing PadsReinforced cement concrete work in beams, suspended floors, roofs having slope up to 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth level up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).Cum5.4011,505.5062,129.70
135.3Lift Shaft RccReinforced cement concrete work in beams, suspended floors, roofs having slope up to 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth level up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).Cum16.2011,505.501,86,389.10
145.22.6Lift Shaft SteelSteel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. — Thermo-Mechanically Treated bars of grade Fe-500D or more.Kg2,106.00107.852,27,132.10
1510.1.1Roof Truss Secondary[item not found: 10.1.1]1,035.650.000.00
SOR item dsr_vol1_2023:10.1.1 not in private subset — regenerate via scripts/boq-import-sor-subset.mjs
1612.1.2Roof Gi Sheet[item not found: 12.1.2]147.950.000.00
SOR item dsr_vol1_2023:12.1.2 not in private subset — regenerate via scripts/boq-import-sor-subset.mjs
1710.5Ms Handrail[item not found: 10.5]976.000.000.00
SOR item dsr_vol1_2023:10.5 not in private subset — regenerate via scripts/boq-import-sor-subset.mjs
Your inputsClear span 25 m · Superstructure type Steel truss · Walkway clear width 2.5 m · Clear height below FOB 5.5 m · Staircase width 3.0 m · Accessibility lift · Roof / shelter over walkway · MS railing 1.1 m height both sidesTOTAL₹12,74,213
12.8.1₹7,028
Excavation Supports
Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, for all lift, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. — All kinds of soil.
27.00 Cum× ₹260.30
24.1.8₹12,262
Pcc Bed
Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : — 1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)
1.80 Cum× ₹6,812.00
35.1.2₹81,412
Rcc Support Footings
Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : — 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)
9.00 Cum× ₹9,045.75
45.22.6₹97,065
Footing Steel
Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. — Thermo-Mechanically Treated bars of grade Fe-500D or more.
900.00 Kg× ₹107.85
510.1.1₹0
Ms Support Columns
[item not found: 10.1.1]
1,540.00 × ₹0.00
SOR item dsr_vol1_2023:10.1.1 not in private subset — regenerate via scripts/boq-import-sor-subset.mjs
610.1.1₹0
Steel Truss Superstructure
[item not found: 10.1.1]
3,500.00 × ₹0.00
SOR item dsr_vol1_2023:10.1.1 not in private subset — regenerate via scripts/boq-import-sor-subset.mjs
712.1.2₹0
Ms Deck Chequered Plate
[item not found: 12.1.2]
62.50 × ₹0.00
SOR item dsr_vol1_2023:12.1.2 not in private subset — regenerate via scripts/boq-import-sor-subset.mjs
85.3₹53,961
Deck Concrete Topping
Reinforced cement concrete work in beams, suspended floors, roofs having slope up to 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth level up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).
4.69 Cum× ₹11,505.50
95.22.6₹0
Superstructure Steel
Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. — Thermo-Mechanically Treated bars of grade Fe-500D or more.
0.00 Kg× ₹107.85
105.3₹2,69,229
Rcc Staircase
Reinforced cement concrete work in beams, suspended floors, roofs having slope up to 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth level up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).
23.40 Cum× ₹11,505.50
115.22.6₹2,77,606
Staircase Steel
Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. — Thermo-Mechanically Treated bars of grade Fe-500D or more.
2,574.00 Kg× ₹107.85
125.3₹62,130
Landing Pads
Reinforced cement concrete work in beams, suspended floors, roofs having slope up to 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth level up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).
5.40 Cum× ₹11,505.50
135.3₹1,86,389
Lift Shaft Rcc
Reinforced cement concrete work in beams, suspended floors, roofs having slope up to 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth level up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).
16.20 Cum× ₹11,505.50
145.22.6₹2,27,132
Lift Shaft Steel
Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. — Thermo-Mechanically Treated bars of grade Fe-500D or more.
2,106.00 Kg× ₹107.85
1510.1.1₹0
Roof Truss Secondary
[item not found: 10.1.1]
1,035.65 × ₹0.00
SOR item dsr_vol1_2023:10.1.1 not in private subset — regenerate via scripts/boq-import-sor-subset.mjs
1612.1.2₹0
Roof Gi Sheet
[item not found: 12.1.2]
147.95 × ₹0.00
SOR item dsr_vol1_2023:12.1.2 not in private subset — regenerate via scripts/boq-import-sor-subset.mjs
1710.5₹0
Ms Handrail
[item not found: 10.5]
976.00 × ₹0.00
SOR item dsr_vol1_2023:10.5 not in private subset — regenerate via scripts/boq-import-sor-subset.mjs
Clear span 25 m · Superstructure type Steel truss · Walkway clear width 2.5 m · Clear height below FOB 5.5 m · Staircase width 3.0 m · Accessibility lift · Roof / shelter over walkway · MS railing 1.1 m height both sides
Estimated total
₹12,74,213
Notes & assumptions
  • **Foot Over Bridge (FOB)** = pedestrian bridge crossing a road / railway / nallah / canal at-height. Mandatory at busy traffic intersections + every railway station + congested urban arterial crossings (per Indian Roads Congress + RDSO + state municipal bylaws).
  • **Superstructure choice**: **Steel truss** — modular, fast install (1-2 weeks), can be lifted into place during night traffic block, ~50 % cheaper than RCC box. **RCC box girder** — heavier, permanent, longer life (60+ years vs 30-40 for steel + paint), aesthetics + acoustic privacy. Choose steel for retrofit/urgent; RCC for long-life institutional projects.
  • **Span ladder**: 15 m for narrow road + small nallah; 20-25 m for standard urban arterial / 2-lane road; 30 m for railway 1-2 track; 40 m for multi-track railway / wide divided highway.
  • **Walkway width**: 2.0 m IRC minimum; 2.5 m standard urban; 3.0 m+ for high-footfall (railway station, mall vicinity). Higher footfall → wider walkway prevents bottleneck.
  • **Accessibility**: Per **Rights of Persons with Disabilities Act 2016 + Harmonised Guidelines 2016**, all new FOBs MUST have lift OR ramp (slope ≤ 1:12). Lift preferred for FOBs > 4.5 m height; ramp preferred for shorter / smaller-footprint sites where lift maintenance is impractical.
  • **Roof / shelter**: Highly recommended (95 %+ of modern Indian FOBs have it) — protects pedestrians from rain + sun + bird droppings. GI sheet on light MS truss is standard.
  • **Cost target** for default 25 m steel-truss FOB with 2.5 m walkway + 2 staircases + 2 lifts + roof + railings: approximately **₹60-90 lakh** per CPWD DSR 2023. RCC-box variant: ₹90L-1.3Cr. Without lifts (only ramps): subtract ₹15-25L. Add ~30 % for railway-FOB (RDSO-spec + traffic-block premium).
  • **Excludes**: lift car + machinery + control panel (~₹8-15L per lift, separate procurement); CCTV + lighting + power (~₹2-4L); signage + wayfinding; paint / cladding (basic paint included; designer cladding adds ₹3-8L); traffic-block coordination charges for road / railway closure during erection (~₹2-5L); 3rd-party load test + certification (~₹1-2L).

The **Foot Over Bridge (FOB)** is the pedestrian-only bridge crossing roads, railways, nallahs, and canals at-height — every busy urban intersection, every railway station, every high-traffic school / hospital crossing has one (or needs one). Per **IRC 99 (Footways & Cycleways) + RDSO Manual (for railway FOB) + Harmonised Guidelines 2016 (Accessibility)**, the standard construction is steel-truss OR RCC-box superstructure with 2.0-3.0 m walkway width, MS handrails, GI-sheet roof, dual staircases (with intermediate landings every 8 risers), AND mandatory accessibility lift OR wheelchair ramp. Span 15-40 m clear depending on the road / track count being crossed. Cost ~₹60-90L civil for default 25 m steel-truss FOB; ~₹90L-1.3Cr for RCC-box version. This BOQ Builder generates the complete per-FOB cost.

Steel truss vs RCC box — when to use each

**Steel truss FOB** is the modern default for: (a) Retrofit projects requiring fast installation (entire FOB can be assembled adjacent to site + lifted into place in a single overnight traffic block — Mumbai's Skywalks, Bengaluru's FOBs use this); (b) Sites with weight-restricted foundations (steel ~30 % lighter than RCC for same span); (c) Budget-constrained municipal projects (~50 % cheaper than equivalent RCC). Drawbacks: requires periodic re-painting (every 5-7 years), shorter life (~30-40 years), noise transmission (footsteps audible). **RCC box girder FOB** is preferred for: (a) Premium institutional projects (railway terminus, hospital, government building) where 60+ year life justifies higher cost; (b) Sites where aesthetics or sound-attenuation matter (concrete cladding aesthetics, no footstep noise to street below); (c) Cyclone / coastal sites where steel corrosion is rapid. Most Indian municipal new FOBs (2018-2026) trend toward steel for the speed + cost advantage.

Accessibility mandates — lift vs ramp

**Per RPwD Act 2016 + Harmonised Guidelines 2016**, every NEW pedestrian FOB must provide wheelchair access via EITHER a lift OR ramp. Old (pre-2016) FOBs are non-compliant — many were retrofitted via lift addition by Indian Railways under Adarsh Stations + Smart Cities programmes. **Lift** is preferred for: FOBs > 4.5 m height (ramp at 1:12 becomes unwieldy: 5 m height = 60 m ramp run), congested urban sites (no land for long ramp), high-volume usage (mall, station — lift handles 30+ users/min vs ramp's 3-5). Lift adds ₹8-15L per shaft (car + machinery + 3-year AMC). **Ramp** is preferred for: shorter heights (≤ 4.5 m); rural / smaller-budget sites without lift-maintenance capacity; canal / nallah crossings with generous land for ramp run. The Builder allows toggling either (or both) — most new urban FOBs have BOTH (lift for main use, ramp as backup during power cuts).

Frequently asked questions
**CPWD DSR 2023 basis** for default 25 m × 2.5 m steel-truss FOB with 2 staircases + 2 lifts + GI roof + MS handrails: **₹60-90 lakh** (civil + structural, excluding lift cars + control panels). **RCC-box variant**: ₹90L-1.3Cr. **Lift cars + machinery** (separate procurement): ₹8-15L each × 2 = ₹16-30L. **Total fully-functional FOB**: ₹80L-1.5Cr. Railway FOBs (RDSO-spec + traffic-block surcharge): add 30-50 % → ₹1.2-2.0 Cr typical. Smart Cities premium FOBs (Mumbai Skywalk-style with cladding + lighting + branding): ₹2-5 Cr.
Disclaimer: Rates sourced from CPWD DSR Vol 1 (2023). Indicative for estimation only — actual tender quotations are governed by market forces, locality factors and current input prices. Quantities follow IS 1200 measurement. Always verify with a local quote before finalising. © InfraLens — infralens.in