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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
3RD ST & RR Iowa Fair 1986 327.4 m 9,400
DRAINAGE DITCH Iowa Fair 1974 6.7 m 9,400
DYE CREEK Iowa Good 1963 14.0 m 9,400
OVER UP RR Iowa Fair 1948 46.3 m 9,391
CEDAR RIVER Iowa Poor 1938 200.6 m 9,382
CROW CREEK Iowa Good 2008 64.7 m 9,372
I-80 Iowa Good 1962 73.0 m 9,350
I-80 Iowa Good 1962 77.9 m 9,350
TRIB TO CEDAR RIVER Iowa Fair 1968 7.6 m 9,300
WHITE WATER CREEK Iowa Fair 1971 67.4 m 9,300
CEDAR RIVER TRAIL Iowa Fair 1974 55.8 m 9,300
CEDAR RIVER TRAIL Iowa Good 1976 57.3 m 9,300
DRAINAGE Iowa Good 2003 10.1 m 9,200
IOWA RIVER Iowa Good 2003 499.6 m 9,200
FLOYD RIVER Iowa Fair 1957 159.1 m 9,200
IA 44 Iowa Fair 1974 68.0 m 9,200
UNIV BR DRY RUN CREEK Iowa Fair 1962 6.9 m 9,191
LAKE PEOSTA CHANNEL Iowa Fair 1982 105.8 m 9,191
WORRELL CREEK Iowa Fair 1960 11.9 m 9,181
MISSOURI RIVER & CITY ST Iowa Fair 1952 488.6 m 9,150
MISSOURI RIVER & CITY ST Iowa Fair 1975 521.5 m 9,150
CHESLEA CREEK Iowa Fair 1931 15.2 m 9,148
CREEK Iowa Good 1994 7.7 m 9,121
DES MOINES RIVER Iowa Fair 1918 151.2 m 9,112
BUTCHER CREEK Iowa Good 2001 11.6 m 9,100
MIDDLE RIVER Iowa Fair 1970 110.0 m 9,100
ROCK CREEK Iowa Good 1993 88.7 m 9,100
WINNEBAGO RIVER Iowa Fair 1938 31.1 m 9,091
SAN MARNAN DR Iowa Good 1983 55.2 m 9,050
BEAVER DAM CREEK Iowa Good 1972 44.5 m 9,050
SAN MARNAN DR Iowa Fair 1983 55.2 m 9,050
I 29 Iowa Good 2015 146.0 m 9,050
STONE AVE Iowa Good 1999 52.1 m 9,050
190TH ST Iowa Fair 1972 44.5 m 9,050
LINCOLN ST & OVERFLO Iowa Good 1995 192.0 m 9,050
STONE AVE Iowa Good 1999 52.1 m 9,050
I 29 Iowa Good 2016 146.0 m 9,050
NB 69-SB69-SB65 Iowa Good 1997 82.9 m 9,050
WAPSIPINICON RIVER Iowa Fair 1927 103.9 m 9,000
I 80 Iowa Good 2023 62.5 m 9,000
STREAM Iowa Good 1963 9.4 m 9,000
OTTER CREEK Iowa Fair 1967 9.8 m 9,000
NORTH TIMBER CREEK Iowa Good 1979 40.8 m 9,000
CERRO GORDO COUNTY TRAIL Iowa Fair 1972 54.6 m 9,000
UP RR & ST Iowa Fair 1984 260.3 m 9,000
DRAINAGE DITCH Iowa Fair 1963 6.4 m 9,000
TINKLE BRANCH Iowa Fair 1976 6.4 m 8,957
FLOYD RIVER Iowa Poor 1962 91.7 m 8,957
MIDDLE RIVER Iowa Good 2016 110.4 m 8,950
DUCK CREEK-BIKE PATH Iowa Fair 1970 54.6 m 8,950

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.