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
IAIS RR Iowa Good 2013 60.1 m 3,960
WEST NISHNABOTNA RIVER Iowa Fair 1978 89.9 m 3,960
135TH PLACE Iowa Good 1978 39.6 m 3,950
US 18 Iowa Good 1999 63.4 m 3,950
135TH PLACE Iowa Good 1978 39.6 m 3,950
BEAVER CREEK Iowa Good 2008 45.7 m 3,950
MIDDLE BEAVER CREEK Iowa Good 2016 10.2 m 3,950
WILLOW CREEK Iowa Fair 1923 21.6 m 3,940
LINGLE CREEK Iowa Fair 1955 40.2 m 3,930
OTTER CREEK Iowa Fair 1986 13.2 m 3,930
IA 141 Iowa Good 2003 130.8 m 3,930
W.BR.TURKEY RIVER Iowa Good 1993 11.6 m 3,930
ROCK RIVER Iowa Fair 1974 107.6 m 3,920
SOUTH TIMBER CREEK Iowa Good 1985 45.7 m 3,920
MORNINGSIDE CREEK Iowa Fair 1984 9.1 m 3,918
MIDDLE RACCOON RIVER Iowa Good 1986 44.5 m 3,914
OVER UP RR Iowa Good 1993 70.4 m 3,910
NORTH RACCOON RIVER Iowa Fair 1973 222.5 m 3,910
LAND Iowa Good 2020 173.6 m 3,910
FOUR MILE CREEK Iowa Poor 1978 75.0 m 3,908
STREAM Iowa Fair 1959 11.6 m 3,900
STREAM Iowa Fair 1962 8.5 m 3,900
MINNOW CREEK Iowa Good 1976 11.6 m 3,900
OVER UP RR Iowa Good 1996 53.3 m 3,900
BNSF RR Iowa Good 1968 50.9 m 3,900
OVER UP RR Iowa Good 1997 53.3 m 3,900
US 18 Iowa Good 1999 63.4 m 3,900
US 30 Iowa Good 2008 74.6 m 3,900
CHURCH CREEK Iowa Good 2007 37.5 m 3,900
IA 16 Iowa Good 2006 67.4 m 3,900
MOSQUITO CREEK Iowa Fair 1968 111.6 m 3,900
CHURCH CREEK Iowa Fair 2007 37.5 m 3,900
IA 16 Iowa Fair 2006 67.4 m 3,900
BIG CEDAR CREEK Iowa Good 2006 63.4 m 3,900
BNSF RR Iowa Good 1968 50.9 m 3,900
MOSQUITO CREEK Iowa Fair 1968 111.6 m 3,900
BIG CEDAR CREEK Iowa Fair 2016 66.2 m 3,900
WAPSIPINICON RIVER Iowa Good 1994 99.4 m 3,896
STREAM Iowa Fair 1984 6.7 m 3,890
HARTE CREEK Iowa Fair 1984 22.9 m 3,890
BRANCH OTTER CREEK Iowa Fair 1984 6.4 m 3,890
BRANCH OTTER CREEK Iowa Good 1984 10.1 m 3,890
OTTER CREEK Iowa Good 1991 6.4 m 3,890
WINNEBAGO RIVER Iowa Fair 1970 66.4 m 3,886
DRY RUN CREEK Iowa Fair 1945 74.4 m 3,880
MAPLE RIVER Iowa Fair 1989 101.8 m 3,880
ENGLISH RIVER Iowa Good 1978 63.7 m 3,870
DRAINAGE DITCH Iowa Good 1978 6.4 m 3,870
BNSF RR Iowa Good 1980 79.6 m 3,870
JORDAN CREEK Iowa Good 2015 7.8 m 3,865

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.