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Browse Bridge Database

23,716 bridges in the FHWA National Bridge Inventory in Iowa.

National Bridge Inventory Database

Browse 23,716 bridges from the Federal Highway Administration National Bridge Inventory. Filter by state, condition rating, or search by name and location.

Clear
BridgeLocationConditionYear BuiltLengthADT
US 63 Iowa Fair 1964 69.2 m 13,300
LITTLE POTOMAC Iowa Fair 1958 15.9 m 13,300
LINN CREEK Iowa Good 1985 74.1 m 13,300
UP RR MADISON&MARKET ST Iowa Fair 1985 262.7 m 13,300
TRIBUTARY OF DRY CREEK Iowa Fair 1976 13.4 m 13,287
I-74 Iowa Good 1990 78.2 m 13,253
13TH ST Iowa Fair 1966 49.4 m 13,200
OVER ABANDON RR Iowa Fair 1965 40.5 m 13,200
I-80 Iowa Fair 1963 76.5 m 13,200
IOWA SPEEDWAY DR Iowa Fair 1962 43.0 m 13,200
4TH 5TH WHITE ST Iowa Fair 1992 226.5 m 13,200
KEG CREEK Iowa Fair 1966 61.0 m 13,200
OVER ABANDON RR Iowa Fair 1965 40.5 m 13,200
I-235 Iowa Good 2005 62.5 m 13,200
KEG CREEK Iowa Fair 1966 61.0 m 13,200
SKUNK RIVER Iowa Fair 1968 75.6 m 13,164
IA 146 Iowa Good 2023 76.2 m 13,100
CEDAR RIVER Iowa Fair 1920 212.4 m 13,000
DITCH #77 Iowa Fair 1919 7.6 m 13,000
NATURAL CREEK Iowa Fair 1953 8.8 m 13,000
WILLOW CREEK Iowa Fair 1971 6.4 m 12,954
I-35 Iowa Fair 2003 86.6 m 12,903
IDELWOOD RD Iowa Fair 1968 58.2 m 12,900
IDELWOOD RD Iowa Fair 1968 58.2 m 12,900
WEST OTTER CREEK Iowa Good 1983 34.4 m 12,850
SILVER CREEK Iowa Fair 1966 54.6 m 12,850
SILVER CREEK Iowa Fair 1966 54.6 m 12,850
WEST NISHNABOTNA RIVER Iowa Good 2012 98.1 m 12,850
EAST OTTER CREEK Iowa Fair 1983 35.7 m 12,850
WEST OTTER CREEK Iowa Fair 1983 34.4 m 12,850
WEST NISHNABOTNA RIVER Iowa Good 2011 98.1 m 12,850
EAST OTTER CREEK Iowa Good 1983 35.7 m 12,850
RACCOON RIVER & TRAIL Iowa Poor 1967 346.3 m 12,809
OVER ABANDON RR Iowa Fair 1978 57.9 m 12,750
ABANDON RR Iowa Fair 1978 57.6 m 12,750
OVER UP RR Iowa Good 1997 57.0 m 12,700
DESMOINES RVR S OVERFLOW Iowa Good 2014 143.0 m 12,700
DRY RUN CREEK Iowa Good 1985 13.8 m 12,700
DES MOINES RVR MID OVRFW Iowa Good 2014 215.2 m 12,700
RACCOON RIVER Iowa Fair 1994 184.4 m 12,650
4TH 5TH 6TH & W PARK Iowa Good 1991 401.4 m 12,650
JORDON CREEK Iowa Fair 1986 17.7 m 12,612
FRNT RD & 2ND AVE Iowa Good 2022 433.4 m 12,600
RACCOON RIVER Iowa Good 2022 192.6 m 12,600
NORTH RIVER Iowa Good 2014 102.8 m 12,550
BADGER CREEK Iowa Good 2014 92.2 m 12,550
I-80/I-35 Iowa Good 1997 364.5 m 12,526
DRAINAGE DITCH Iowa Good 1960 8.2 m 12,500
RAMP OVER IA 376 & UP RR Iowa Fair 1976 159.4 m 12,500
NENEBEC CREEK Iowa Fair 1998 6.1 m 12,500

Frequently Asked Questions

The National Bridge Inventory (NBI) is a federal database maintained by the Federal Highway Administration containing inspection data for all bridges on public roads in the U.S. with a span of more than 20 feet. Bridge owners must inspect each structure at least every 24 months.

ADT stands for Average Daily Traffic — the average number of vehicles crossing the bridge per day. Bridges are sorted by ADT by default because high-traffic bridges in poor condition pose the greatest risk to the most people.

Yes. Use the search field above to find bridges by name, location, or features crossed. You can also combine the search with state and condition filters to narrow your results.