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
IC&E RR Iowa Good 2009 58.2 m 5,619
ROCK CREEK Iowa Good 2003 8.2 m 5,613
BIG WHISKEY CREEK Iowa Good 2010 62.8 m 5,600
BIG WHISKEY CREEK Iowa Fair 2010 62.8 m 5,600
CP RR Iowa Fair 1996 58.5 m 5,600
HEATONS CREEK Iowa Fair 1976 6.7 m 5,600
WAPSIPINICON RIVER Iowa Fair 1973 161.8 m 5,600
OUTER DR Iowa Good 2000 73.5 m 5,600
DES MOINES RIVER Iowa Fair 1959 301.1 m 5,600
DRAINAGE DITCH Iowa Fair 1960 7.0 m 5,600
UP RR Iowa Good 2023 66.1 m 5,600
CEDAR RIVER Iowa Good 1992 315.8 m 5,600
STREAM Iowa Good 1991 10.1 m 5,600
UP RR & RD Iowa Fair 1988 140.2 m 5,600
NE 46TH AVE BROADWAY Iowa Good 2023 49.4 m 5,600
IA 17 Iowa Good 1974 78.3 m 5,600
FOX RIVER Iowa Fair 1948 65.5 m 5,600
STREAM Iowa Good 2000 7.9 m 5,600
OUTER DR Iowa Good 2000 73.5 m 5,600
DRY RUN CREEK Iowa Fair 1994 43.3 m 5,594
US 61 & 151 Iowa Fair 1957 22.3 m 5,594
MOSQUITO CREEK Iowa Fair 1968 54.3 m 5,557
SOLDIER CREEK Iowa Poor 1995 53.3 m 5,546
WALNUT CREEK Iowa Fair 1988 101.1 m 5,534
7TH WARD DITCH Iowa Fair 1996 8.2 m 5,534
I-235 Iowa Good 2007 93.9 m 5,534
BRANCH BLUE CREEK Iowa Good 2019 21.3 m 5,513
DUCK CREEK Iowa Fair 1969 66.1 m 5,500
R-27 Iowa Good 1978 43.3 m 5,500
LITTLE LIME CREEK Iowa Fair 1997 34.1 m 5,500
BEEDS CREEK Iowa Good 2020 13.7 m 5,500
BRANCH PRAIRIE CREEK Iowa Good 1970 52.4 m 5,500
N. FORK LONG CREEK Iowa Good 1997 63.5 m 5,500
MILL RACE CREEK Iowa Good 2011 28.3 m 5,500
IOWA RIVER OVERFLOW Iowa Fair 1974 211.2 m 5,500
IOWA RIVER OVERFLOW Iowa Good 2011 8.2 m 5,500
UNNAMED STREAM Iowa Good 2019 7.8 m 5,500
R-27 Iowa Fair 1978 43.3 m 5,500
TAFT ST Iowa Good 1999 65.8 m 5,500
I80 & I29 INTERCHANGE Iowa Good 2014 605.3 m 5,500
IOWA RIVER Iowa Fair 1974 135.3 m 5,500
LITTLE LIME CREEK Iowa Good 1997 34.1 m 5,500
WINNEBAGO RIVER & ROAD Iowa Fair 1998 91.1 m 5,500
I 29 Iowa Fair 1976 173.4 m 5,500
CLEAR CREEK Iowa Good 1987 6.4 m 5,500
WINNEBAGO RIVER & ROAD Iowa Good 1998 91.1 m 5,500
TAFT ST Iowa Good 1999 65.8 m 5,500
CP RR Iowa Fair 1996 58.5 m 5,500
DRAINAGE Iowa Fair 1983 6.7 m 5,495
N FORK MAQUOKETA RIVER Iowa Fair 1979 46.9 m 5,495

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.