TheBridgeEng Preliminary tools

Bridge Budget Estimator

Bridge typePSC Beam

Site

Landbase rate

Sea / Water+ marine

Total length

20 m1,000 m

Total deck length end to end. Type a value or drag the slider.

Deck width

5 m50 m

Out-to-out deck width. Drives total area with length.

Deck area

12,500 m²

Unit rate

$1,800 /m²

$22.5 M

Expected budget

Low$15.8 M

High$31.5 M

Indicative only. Order-of-magnitude figures for comparing relative differences between bridge types and sizes — not exact values. Rates are world-average ranges (≈ $/m² of deck) and exclude site-specific foundations, approaches, utilities, land, and soft costs. Always verify against current local quotes.

Field notes — what to watch for

Treat the output as a bracket, not a number — real tenders swing with steel prices, site access and foundation surprises. The biggest early-stage cost lever is almost never the superstructure rate: it is span arrangement, because piers and foundations are where money hides.

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