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
I-80 Iowa Fair 1964 67.7 m 837
WEST TARKIO RIVER Iowa Good 2021 34.4 m 837
NICHOLSON CREEK Iowa Poor 1960 22.9 m 836
HONEY CREEK Iowa Fair 1980 62.2 m 835
MAQUOKETA RIVER Iowa Fair 1969 69.8 m 835
STREAM Iowa Good 2005 39.0 m 835
PRAIRIE CREEK Iowa Poor 1969 24.1 m 835
OTTER CREEK Iowa Fair 2002 7.9 m 833
DRAINAGE DITCH Iowa Good 2000 13.1 m 832
MISSISSIPPI SLOUGH Iowa Poor 1957 9.4 m 832
I-29 Iowa Fair 1972 101.8 m 830
EAST WILLOW RIVER Iowa Good 1996 91.7 m 830
IA 163-MONROE BYPASS Iowa Good 1997 69.9 m 830
BUTCHER CREEK Iowa Poor 1952 19.5 m 830
BRANCH TROUBLESOME CREEK Iowa Good 1967 9.8 m 830
LITTLE CEDAR CREEK Iowa Fair 1966 35.1 m 830
LITTLE CEDAR CREEK Iowa Good 1989 7.6 m 830
ELLIOT CREEK Iowa Good 1954 8.8 m 830
UPPER IOWA RIVER Iowa Good 1983 102.1 m 830
DAVID`S CREEK Iowa Fair 1972 39.0 m 830
EAST NISHNABOTNA RIVER Iowa Fair 1976 61.0 m 830
BLUEGRASS CREEK Iowa Fair 1959 56.1 m 830
DRAINAGE DITCH Iowa Fair 1988 40.8 m 830
US 218 Iowa Good 2001 85.0 m 830
NORTH SKUNK RIVER Iowa Good 1988 116.4 m 830
WILLOW CREEK Iowa Fair 1994 52.4 m 829
OCHEYEDON RIVER Iowa Fair 1976 39.0 m 828
I-35 Iowa Fair 1972 89.0 m 828
DD NO 57 Iowa Fair 1974 23.8 m 828
RUSH LAKE OUTLET Iowa Fair 1984 9.8 m 828
ROETZEL CREEK Iowa Good 2006 6.7 m 828
WILLOW CREEK Iowa Fair 1972 9.8 m 828
W BRANCH IOWA RIVER Iowa Poor 1948 28.0 m 828
DRAINAGE DITCH NO. 22 Iowa Fair 1970 38.1 m 828
MILL CREEK Iowa Good 2000 50.3 m 828
JONES CREEK Iowa Fair 1990 39.0 m 826
SANDHAGEN CREEK Iowa Poor 1965 23.8 m 825
SMALL STREAM Iowa Fair 1970 6.7 m 825
HARTER CREEK Iowa Fair 1964 23.5 m 825
MINK CREEK Iowa Poor 1957 46.7 m 825
ORANGE CITY SLOUGH Iowa Good 2002 34.4 m 823
US 34 Iowa Fair 1970 70.7 m 823
FOUR MILE CREEK Iowa Fair 1999 54.0 m 820
EAST NODAWAY RIVER Iowa Good 2012 59.7 m 820
GRAND RIVER Iowa Fair 2011 113.4 m 820
LITTLE FOX CREEK Iowa Fair 1985 44.5 m 820
SO LITTLE FOX CREEK Iowa Fair 1985 15.9 m 820
LITTLE RIVER Iowa Fair 1953 98.8 m 820
OVER IAIS RR Iowa Good 1993 44.5 m 820
PRICES CREEK Iowa Fair 1977 33.5 m 820

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.