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
MIDDLE RIVER Iowa Good 1982 79.6 m 4,160
BASKINS CREEK Iowa Good 1996 32.6 m 4,160
DRY RUN CREEK Iowa Fair 1992 40.5 m 4,156
CLEAR CREEK Iowa Fair 1979 46.9 m 4,150
CLEAR CREEK Iowa Good 2002 63.4 m 4,150
MISSOURI RIVER OVERFLOW Iowa Good 2019 336.2 m 4,150
W FK LITTLE SIOUX RIVER Iowa Good 2004 68.0 m 4,150
IA 92 Iowa Good 1996 68.9 m 4,150
NB I-35 & EB I-80 Iowa Good 2009 93.6 m 4,150
IA 14 & SHERMAN CREEK Iowa Good 1999 150.3 m 4,150
PINE CREEK Iowa Good 1978 75.0 m 4,150
PINE CREEK Iowa Fair 1978 74.1 m 4,150
NORTH SKUNK RIVER Iowa Good 2002 66.8 m 4,150
WAPSIPINICON RIVER Iowa Fair 1978 103.3 m 4,150
MISSOURI RIVER OVERFLOW Iowa Good 2021 63.9 m 4,150
WB I-80 Iowa Good 2009 102.3 m 4,150
MISSOURI RIVER OVERFLOW Iowa Good 2021 63.9 m 4,150
WAPSIPINICON RIVER Iowa Fair 1978 103.3 m 4,150
MISSOURI RIVER OVERFLOW Iowa Good 2020 336.2 m 4,150
BLOODY RUN & DME RR Iowa Fair 1988 143.3 m 4,140
BRANCH ROBERTS CREEK Iowa Fair 1967 12.5 m 4,140
NORTH FORK CATFISH CREEK Iowa Fair 2006 7.6 m 4,131
DRAINAGE DITCH Iowa Good 1986 6.4 m 4,130
U.S. 63 Iowa Good 2002 83.5 m 4,130
PRAIRIE CREEK Iowa Poor 1964 68.9 m 4,121
CAMP CREEK Iowa Good 2019 37.8 m 4,120
ENGLISH RIVER Iowa Fair 1979 105.8 m 4,120
CREEK Iowa Good 2003 7.6 m 4,116
STREAM Iowa Fair 1952 9.8 m 4,110
STREAM Iowa Good 2007 24.4 m 4,110
US 30 Iowa Good 1995 84.7 m 4,109
YEADER CREEK Iowa Fair 1976 26.8 m 4,106
TRAIL Iowa Fair 1979 103.6 m 4,100
CROW CREEK Iowa Fair 1928 6.4 m 4,100
AMBER RD Iowa Good 2001 64.9 m 4,100
LONG CREEK Iowa Good 1987 8.8 m 4,100
US 65 Iowa Good 2003 81.1 m 4,100
IND PARK ROAD Iowa Good 2002 50.0 m 4,100
US 65 Iowa Good 2003 82.3 m 4,100
IOWA 38 Iowa Good 2002 71.0 m 4,100
FOUR MILE CREEK Iowa Fair 1965 56.1 m 4,097
BR EASTER LAKE Iowa Fair 1967 23.8 m 4,097
IOWA RIVER Iowa Fair 1985 441.7 m 4,090
I 29 US 6 AVE G Iowa Good 2022 514.5 m 4,090
STORM CREEK Iowa Good 1973 7.3 m 4,090
I-29 Iowa Poor 1959 75.6 m 4,090
YEADER CREEK Iowa Good 1984 12.8 m 4,088
OVERFLOW CHANNEL Iowa Good 2021 81.4 m 4,085
IOWAY CREEK Iowa Good 2021 124.1 m 4,085
DRAINAGE Iowa Good 1999 57.3 m 4,080

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.