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.

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BridgeLocationConditionYear BuiltLengthADT
DD #57 Iowa Fair 1975 9.8 m 210
SMALL STREAM Iowa Fair 1974 7.3 m 210
BLACK CAT CREEK Iowa Fair 1979 39.1 m 210
NICHOLSON CREEK Iowa Fair 1975 30.5 m 210
WATERMAN CREEK Iowa Fair 1961 54.3 m 210
SILVER CREEK Iowa Good 2004 6.4 m 210
SMALL Iowa Fair 1959 7.6 m 210
ASHTON CREEK Iowa Good 2013 25.3 m 210
ALDRICH CREEK Iowa Fair 1970 8.5 m 210
PARADISE CREEK Iowa Fair 1972 47.2 m 210
LITTLE FOX CREEK Iowa Fair 1964 6.4 m 210
JOHNSON CREEK Iowa Good 2015 7.6 m 210
ELLIOT CREEK Iowa Good 2019 37.5 m 210
STREAM Iowa Good 1960 7.0 m 210
LITTLE MUCHAKINOCK CREEK Iowa Good 1988 39.3 m 210
TARKIO RIVER Iowa Fair 1968 69.8 m 210
W FORK LITTLE SIOUX RIV Iowa Good 1974 6.4 m 210
JONES CREEK Iowa Fair 1986 8.2 m 210
WHISKEY CREEK Iowa Good 2023 60.0 m 210
ELK RUN CREEK Iowa Poor 1900 30.8 m 209
MELONE CREEK Iowa Fair 1985 31.4 m 208
UPPER IOWA RIVER Iowa Poor 1985 18.3 m 207
STREAM Iowa Good 2016 15.5 m 207
BEAR CREEK Iowa Good 2007 39.0 m 207
CREEK Iowa Good 2023 30.5 m 207
PLEASANT RUN CR. Iowa Fair 1985 27.4 m 207
NO FORK MAQUOKETA RIVER Iowa Good 2019 46.6 m 207
SHELL ROCK RIV OVERFLOW Iowa Poor 1992 17.4 m 207
SHELL ROCK RIV OVERFLOW Iowa Fair 1992 22.6 m 207
DRAINAGE DITCH Iowa Good 2012 14.0 m 207
CHIPPEWA CREEK Iowa Good 2022 13.1 m 207
CATFISH CREEK Iowa Good 2015 11.6 m 206
IOWA RIVER Iowa Good 1954 159.4 m 206
BEAR CREEK Iowa Good 1980 12.2 m 206
STREAM Iowa Good 1999 15.2 m 206
PRATT CREEK Iowa Good 2021 21.6 m 206
KRUMM CREEK Iowa Fair 1981 30.5 m 206
PRAIRIE CREEK Iowa Good 2002 62.2 m 206
COLD WATER CREEK Iowa Good 2011 27.7 m 206
PRAIRIE CREEK Iowa Fair 1986 39.0 m 206
UPPER IOWA RIVER Iowa Good 1999 83.2 m 206
BEEMIS CREEK Iowa Good 2010 33.8 m 206
CREEK Iowa Good 2012 7.6 m 206
CREEK Iowa Poor 1998 13.7 m 206
SPRING BRANCH Iowa Good 1992 27.7 m 206
BEAVER CREEK Iowa Poor 1965 38.7 m 206
STREAM Iowa Fair 1988 6.1 m 206
PRAIRIE CREEK Iowa Fair 1967 75.0 m 205
WANATEE CREEK Iowa Good 1998 6.4 m 201
MCLAREN CREEK Iowa Fair 1968 9.8 m 201

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.