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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
BEAVER CREEK Iowa Fair 1957 64.6 m 9,700
CEDAR RIVER Iowa Fair 1993 207.0 m 9,700
I-235 Iowa Good 2004 75.3 m 9,700
US 34 Iowa Fair 1976 77.1 m 9,700
US 20 & US 218 Iowa Fair 1983 456.6 m 9,700
UNION HOLLOW Iowa Good 1967 8.2 m 9,690
OLD MAN CREEK Iowa Good 1982 81.4 m 9,650
I380 SB TO I80 EB RAMP F Iowa Good 2021 53.7 m 9,650
BIG CREEK Iowa Fair 1965 68.6 m 9,650
UP RR Iowa Fair 1964 48.2 m 9,650
CROOKED CREEK Iowa Good 1982 38.4 m 9,650
I 80 WB RAMPS Iowa Good 2021 86.0 m 9,650
I 80 Iowa Good 2021 105.9 m 9,650
I 80 WB RAMPS Iowa Good 2021 86.0 m 9,650
UNIVERISTY BLVD Iowa Fair 1971 58.2 m 9,600
DRAINAGE DITCH #4 Iowa Fair 1968 7.6 m 9,600
DRAINAGE DITCH #4 Iowa Good 1968 8.5 m 9,600
OVER I.C.E. RR Iowa Fair 1981 16.8 m 9,600
DRAINAGE DITCH Iowa Good 2005 7.9 m 9,600
IA 22 Iowa Fair 1970 71.9 m 9,600
IA 22 Iowa Fair 1970 71.9 m 9,600
CATFISH CR CCP RR & RD Iowa Good 2014 160.1 m 9,600
STREAM Iowa Good 1996 7.9 m 9,600
DRAINAGE DITCH Iowa Fair 1978 9.1 m 9,600
DRAINAGE DITCH Iowa Good 1978 6.7 m 9,600
DRAINAGE DITCH #4 Iowa Good 1968 7.6 m 9,600
DRAINAGE DITCH Iowa Fair 1978 10.7 m 9,600
IOWAY CREEK (13TH) Iowa Good 1974 70.4 m 9,563
SOUTH WEST CREEK Iowa Fair 2013 62.4 m 9,550
WEST CREEK Iowa Good 2013 80.5 m 9,550
4TH AVE S Iowa Fair 1970 70.1 m 9,550
CATFISH CR CCP RR & RD Iowa Good 2014 160.1 m 9,550
STREAM Iowa Fair 1922 27.1 m 9,550
RALSTON CK S BRANCH Iowa Fair 1972 12.2 m 9,524
CEDAR RIVER Iowa Fair 1993 207.0 m 9,500
MUDD CREEK Iowa Good 1983 86.3 m 9,500
DRAINAGE DITCH #4 Iowa Good 1986 9.1 m 9,500
RR AND MADISON ST Iowa Poor 1951 488.9 m 9,491
DRAINAGE Iowa Good 2007 7.6 m 9,480
BLACKHAWK CREEK Iowa Fair 1999 14.6 m 9,480
KETTLE CREEK Iowa Good 1995 7.3 m 9,480
SKUNK RIVER Iowa Fair 1952 74.1 m 9,468
DUCK CREEK Iowa Good 2023 60.0 m 9,450
OVER BNSF RR Iowa Fair 1995 50.9 m 9,400
NORTH RACCOON RIVER Iowa Fair 1977 145.4 m 9,400
RACCOON RIVER OVERFLOW Iowa Fair 1977 42.1 m 9,400
IA 44 Iowa Fair 1974 68.0 m 9,400
WEST CREEK Iowa Fair 2012 80.5 m 9,400
DRAINAGE DITCH Iowa Fair 1974 6.7 m 9,400
DYE CREEK Iowa Good 1963 14.0 m 9,400

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.