TheBridgeEng Preliminary tools

Bridge Budget Estimator

Bridge typePSC Beam

Site

Landbase rate

Sea / Water+ marine

Region× 1.00

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 construction cost

Low$15.8 M

High$31.5 M

Total project budget$31.5 Mowner's costs +40 %

Indicative only. Order-of-magnitude figures for comparing bridge types and sizes, not a price. The rate is a world-average construction cost per m² of deck for the whole structure of a typical bridge of the type (superstructure, piers and normal foundations on ordinary ground, erection, contractor's preliminaries and margin), scaled by the region factor; the band is 0.70 to 1.40 of it. Not included: approaches and embankments, utilities, land, design fees, owner's contingency, VAT, and the extra cost of deep water, very tall piers or deep piling. The same rates are the benchmark in Bridge Design and price the deck in the Bridge Game. Always verify against current local quotes.

Region factors: basis and evidence (re-derived 2026-10-13)

Multiply the world-average rates of section 1. 1.00 = the level of the benchmark table = Arcadis International Construction Costs 2025 index 100 (Amsterdam; mean of the 100 cities about 105) = the UAE level, where the Bridge Design bottom-up at GCC rates reproduces the benchmark. general = concrete-dominated bridges (labour, concrete, rebar, plant at local prices); steel = steel-family bridges = 0.45 x general + 0.55 x fabricated-structural-steel level of the region (GCC delivered = 1.0, China 0.45, Korea 0.75, Europe 1.3, USA 1.6). Evidence per row (basis): arcadis_2025 = Arcadis ICC 2025 city index (average of the cities named), tt_ratio = Turner & Townsend 2025 average build cost in USD/m2 divided by Dubai 1,926, bridge_ratio = published bridge construction cost per m2 of deck divided by the benchmark of the type (PSC girder 1,400, PSC box 1,850, steel 2,600), fab_steel = fabricated steel level. Bridge evidence outweighs building indices, which understate the infrastructure premium of regulated high-cost markets by about 1.3-1.5. USA is split in two because FHWA 2025 state unit costs run from 1,378 (Texas) to 14,000 USD/m2 (Massachusetts). Derived 2026-10-13; see data/TBE-RegionFactors_2026-10-13.md in the project for the evidence tables.

Region	General ×	Steel ×	Arcadis 2025	T&T / Dubai	Bridge / benchmark	Fab. steel	Evidence
World average Reference	1.00	1.00	100	–	–	1.00	Definition: Arcadis ICC 2025 index 100 (Amsterdam); mean of the 100 cities about 105. The benchmark table and the Bridge Design placeholder rates sit at this level.
UAE Middle East	1.00	1.00	102	1.00	0.95	1.00	Arcadis Dubai 101, Abu Dhabi 103; T&T 2025 Dubai 1,926 and Abu Dhabi 1,872 USD/m2 (the reference for the T&T ratios); site labour 5.9-6.5 USD/h; Bridge Design bottom-up at GCC rates = 0.9-1.0 of the benchmark.
Saudi Arabia Middle East	1.15	1.10	110	1.62	–	1.05	Arcadis Riyadh 110; T&T Riyadh 3,112 USD/m2 (1.6 x Dubai, giga-project demand); labour 14.1 USD/h; rebar SAR 2,892/t (GASTAT 2025) about 770 USD, 1.2 x China/India.
Qatar, Kuwait, Oman, Bahrain Middle East	1.10	1.05	–	1.36	–	1.00	T&T Doha 2,613 USD/m2 (1.36 x Dubai); smaller markets with imported materials; no bridge table found.
Korea Asia	1.15	0.95	91	1.29	1.20	0.75	Arcadis Seoul 91; T&T Seoul 2,488 USD/m2 (1.29 x Dubai). Bridges: KDI preliminary feasibility guideline (7th ed., 2022) expressway 4-lane standard costs, PSC beam 43.3 M KRW per m (2019 basis) about 1,590 USD/m2 (about 1,800 at 2025 prices), steel box 56.6 M KRW/m about 2,070 (2,350); MOLIT road handbook national-road bridges 60.1 bn KRW/km about 2,550 USD/m2 -> concrete 1.15-1.3, steel 0.85-0.95 of the benchmark; competitive domestic fabrication (rebar 670-850 k KRW/t).
Japan Asia	1.90	1.80	137	2.41	2.20	1.20	Arcadis Tokyo 137; T&T Tokyo 4,647 USD/m2 (2.4 x Dubai), labour 29-36 USD/h; JASBC steel-bridge contract statistics, superstructure 400-1,800 thousand JPY/m2 (2.7-12 k USD, superstructure only) put whole steel bridges at 2 x the benchmark or more; whole-bridge PC figures not found, so set between the index and the T&T ratio.
China Asia	0.55	0.65	47	–	0.55	0.45	Arcadis Shanghai 47, Beijing 49, Shenzhen 44; Guangzhou cost indicators: RC bridges 4,100-5,300 CNY/m2 (2014-2017, projected area) about 600-860 USD -> 0.45-0.6 of 1,400 at today's prices, steel bridges 9,700-13,500 CNY/m2 -> 0.6-0.85 of 2,600; HRC 477 USD/t (0.85 of the global tracker), fabricated bridge steel about 0.45 of the GCC level.
India Asia	0.40	0.50	36	0.38	0.35	0.55	Arcadis Mumbai 37, Delhi 36, Bengaluru 34; T&T Mumbai 723 USD/m2 (0.38 x Dubai); Surat urban flyovers 38,000-42,000 INR/m2 (2025-26 tenders) about 440-480 USD, 0.31-0.34 of 1,400; HRC 45,775 INR/t about 525 USD.
Southeast Asia Asia	0.55	0.60	45	0.60	0.50	0.60	Arcadis Bangkok 51, Manila 57, Jakarta 43, Kuala Lumpur 36, Ho Chi Minh City 37; T&T KL 1,354, HCMC 1,168, Jakarta 943 USD/m2 (0.49-0.70 x Dubai); Vietnam expressway viaduct about 383 bn VND/km about 600 USD/m2 (0.43), Thailand rural RC bridge 610-850 USD/m2 (0.45-0.6); steel largely imported from China.
Singapore, Hong Kong Asia	1.50	1.25	155	1.61	–	1.00	Arcadis Hong Kong 167, Singapore 142; T&T Singapore 3,104 USD/m2 (1.6 x Dubai), Hong Kong 4,377 (2.3 x); fabricated steel imported (China, Korea); no bridge table found.
Türkiye, Central Asia Asia	0.85	0.70	98	–	–	0.60	Arcadis Istanbul 98 (USD terms after the lira fall); HRC 553 USD/t CFR (2024), rebar 570 USD/t FOB (2025); strong export fabrication; no bridge table found.
USA, central and south North America	1.50	1.50	112	–	1.50	1.60	Arcadis Houston 108, Dallas 110, Miami 124; TxDOT FY2025 span bridges 133 USD/ft2 = 1,433 USD/m2 (PSC I-beam 1,313; steel I 3,723), WisDOT 2025 PS girder 1,856-2,324, ArDOT 2,800-3,080; FHWA 2025 state unit costs TX 1,378, FL 2,777, GA 2,280 USD/m2 -> concrete 1.0-2.0 (typical 1.5), steel 1.4-1.5 of the benchmark; HRC 949 USD/t.
USA, north-east and west coast North America	2.80	2.20	165	2.98	3.00	1.70	Arcadis New York 179, San Francisco 174, Boston 160, Los Angeles 147; T&T New York 5,744 USD/m2 (3.0 x Dubai); Caltrans 2023 PC/PS I-girder 325-550 USD/ft2 = 3,500-5,920 USD/m2, CIP box 1,615-4,306; FHWA 2025 NY 5,447-9,322, MA 10,560-14,060, CA 4,900-5,360 (replacements) -> 2.5-4 of the benchmark; FHWA national average 4,230 USD/m2 (3.0) sits between the two USA rows.
Canada North America	1.80	1.60	119	–	2.00	1.40	Arcadis Toronto 125, Vancouver 119, Montreal 112; Ontario municipal replacement rates C$4,500-8,000/m2 (2024, incl. approaches, design and administration) about 3,300-5,800 USD -> bridge only about 2,500-4,500 USD/m2, 1.8-3 of the benchmark.
UK and Ireland Europe	2.20	1.80	185	2.80	2.90	1.30	Arcadis London 217, Bristol 169, Dublin 168; T&T London 5,385 USD/m2 (2.8 x Dubai); ORR Network Rail structures renewals 3,200 GBP/m2 (2023-24) about 4,090 USD (proxy, rail); HRC Northern Europe 605 EUR/t.
Germany, Austria, Switzerland, Nordics Europe	2.30	1.90	170	–	2.40	1.35	Arcadis Geneva 224, Zurich 206, Munich 196, Copenhagen 176, Berlin 155, Oslo 142; Ernst & Sohn Leitfaden Strassenbruecken: prestressed concrete 2,900-4,300 EUR/m2 (3,140-4,650 USD = 2.2-2.5 of 1,400-1,850), composite 3,500-4,500 EUR, steel 5,700-5,950 EUR (6,200-6,400 USD = 2.4 of 2,600); BMDV Autobahn replacement about 4,000-4,300 EUR/m2.
France, Benelux Europe	1.60	1.45	125	–	–	1.30	Arcadis Paris 136, Brussels 134, Amsterdam 100; no bridge table found, so the index is raised by the infrastructure premium seen in Germany (about 1.3).
Southern Europe Europe	1.10	1.10	92	–	–	1.20	Arcadis Milan 110, Rome 110, Athens 98, Lisbon 86, Barcelona 82, Madrid 78; HRC Italy 578 EUR/t; no bridge table found.
Eastern Europe Europe	0.90	0.95	101	–	–	1.10	Arcadis Warsaw 99, Prague 103, Zagreb 100 (USD terms); lower labour than the index suggests for civil works, EU-priced steel; no bridge table found.
Australia and New Zealand Oceania	1.90	1.70	112	1.67	2.30	1.50	Arcadis Sydney 120, Melbourne 107, Brisbane 110, Perth 103, Auckland 114; T&T Sydney A$4,866 about 3,210 USD/m2 (1.7 x Dubai), labour 58-66 USD/h; NSW council concrete bridge valuation A$4,020/m2 (2020, about A$5,000 today = 3,200 USD, 2.3); NZTA standard bridge rate NZ$5,600/m2 about 3,390 USD (2.4).
Latin America Americas	0.80	0.85	74	–	–	0.90	Arcadis Sao Paulo 86, Santiago 75, Bogota 70, Mexico City 64; DNIT (Brazil) OAE 8,000-12,000 BRL/m2 is a 2013 base and not used; steel near world prices.
South Africa Africa	0.70	0.80	36	–	–	0.85	Arcadis Johannesburg 36 (USD terms, weak rand) for buildings; bridge work carries imported plant and steel, so above the index; no per-m2 table found (SANRAL project totals only).
Africa, remote site Africa	1.10	1.30	44	–	–	1.30	Arcadis Lagos 46, Nairobi 43 are urban building baskets; a remote bridge site pays imported cement, steel and plant, long haul, expatriate supervision and security, in practice 1.0-1.5 x the GCC level; weakest evidence in the table, kept from the previous edition.

Sources: Arcadis, International Construction Costs 2025 (index, Amsterdam = 100) and 2026 press release · Turner & Townsend, International Construction Market Survey 2024 / Global Construction Market Intelligence 2025 (average build cost USD/m2, labour USD/h) · FHWA, National Bridge Inventory Bridge Replacement Unit Costs 2025 (USD/ft2 by state); TxDOT Bridge Unit Costs FY2024-2025; Caltrans Comparative Bridge Costs 2023; WisDOT Bridge Manual ch. 5 (2025); ArDOT Bridge Cost 2025 · Korea: KDI preliminary feasibility study guideline, 7th ed. 2022 (bridge standard costs per m); MOLIT road affairs handbook (national-road bridge cost per km) · Germany: Ernst & Sohn Kompakt-Leitfaden Strassenbruecken (EUR/m2 by type); BMDV / T&E Brueckensanierung 2025 · Japan: JASBC steel bridge contract statistics FY2021-25 (superstructure, thousand JPY/m2) · China: Guangzhou construction cost indicators 2014 / 2017 (CNY/m2 by bridge type); Guangdong material price information 2024-25 · India: Surat Municipal Corporation flyover tenders 2025-26; Ministry of Steel monthly report Dec 2025 · Vietnam: Vien Kinh te Xay dung expressway viaduct cost 2025 (VnExpress); Thailand: PAO Tak bridge estimate 2023 · Australia / NZ: NSW council bridge asset management plans (replacement rates); NZTA bridge valuation rates 2024; Property Council / T&T Australian build costs · Canada: Ontario municipal bridge management study 2024 (C$/m2 replacement rates) · Steel: Argus / GMK Center / SteelOrbis regional HRC and rebar prices 2025; GASTAT Saudi rebar; Tokyo Steel list prices

How this early bridge cost estimate is built

At concept stage the quickest defensible estimate is a benchmark rate per square metre of deck, by structural type and site, multiplied by the deck area. That is what this tool does. The rate is a world-average construction cost of the whole structure of a typical bridge of the type: superstructure, piers 8 to 15 m high with normal foundations on ordinary ground, erection and temporary works, the contractor's preliminaries and margin. The sea column adds the marine extras of piers standing in water (cased piles, cofferdams, floating plant, weather). A region factor scales the world average (labour-heavy concrete work moves with the general factor, steel-dominated types with a separate steel factor), and the low and high ends of the band are 0.70 and 1.40 of the expected value. The basis of every region factor (Arcadis and Turner & Townsend city indices, published bridge costs per m² of deck, regional steel prices) is set out in the table under the estimator; the world average is defined as the Arcadis 2025 index 100 level, which is also the UAE level.

Construction cost = deck length × deck width × rate_{type, land or sea} × region factor | total project budget ≈ construction cost × 1.40 (fees, contingency, escalation, VAT)

What is inside the rate, and what is not

Inside: girders or box, deck slab, surfacing, barriers, bearings and joints, piers and abutments, normal foundations, erection, site overheads and margin. Outside: approaches and embankments, utilities, land, traffic management, design fees, the owner's contingency and VAT (the second line adds these at the Bridge Design default percentages, about 40 %), and the extra cost of deep water, very tall piers or deep piling. Piers and foundations are typically 30 to 45 % of the structure cost on land and more over water, so the Bridge Design tool, which prices the same bridge bottom-up from quantities (girders, slab, piers, piles, erection and temporary works by method), is the next step when the span arrangement, pier heights and ground are known; its contract value is calibrated to these rates for a typical land bridge and it reports the ratio to this benchmark.

Reading the output

Use the bracket to compare alternatives (type A against type B on the same site), to set a budget envelope with an explicit contingency, and to sanity-check a tender, not as a price. Unit rates and productivity vary by 20 to 30 % between markets and years, and foundations or access can move a single project outside the band in either direction.

Frequently asked

How much does a bridge cost per square metre?

World-average construction costs for the whole structure on land run from about 1,100 to 1,400 USD per m² of deck for slab and precast girder bridges, 1,850 to 2,600 for cast-in-place and balanced-cantilever boxes and steel composite girders, 2,800 to 3,850 for arches and extradosed bridges, and 4,800 to 7,600 for cable-stayed and suspension bridges; piers in the sea add 20 to 30 %. The structural type and the site matter far more than the country, which the region factor then scales.

What drives bridge construction cost?

Deck area and span (superstructure quantities grow roughly with span squared for girders), foundation type (piled foundations and marine works often exceed the superstructure), pier height and access (temporary works), the erection method, and the schedule. Piers and foundations are typically 30 to 45 % of the structure cost on land and more over water.

What contingency should a concept estimate carry?

At concept stage a 25 to 40 % contingency on the base estimate is normal (AACE Class 5); it narrows to 15 to 25 % at preliminary design and 5 to 10 % at tender, as quantities and site conditions firm up.

Does the estimate include design, land and traffic management?

No. The first figure is the construction contract value of the structure; the total project budget line adds design and supervision fees, the owner's contingency, escalation and VAT at about 40 %. Land, utilities diversions, traffic management and finance are project costs on top.