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
US 30 W JCT Iowa Fair 1980 111.3 m 6,300
NE 3RD ST Iowa Good 2000 37.5 m 6,300
STREAM Iowa Good 2020 9.9 m 6,300
SOUTH SKUNK RIVER Iowa Fair 1967 98.1 m 6,300
DRAINAGE Iowa Good 2020 6.4 m 6,300
CAMP CREEK Iowa Good 2007 61.9 m 6,300
CAMP CREEK Iowa Good 2007 61.9 m 6,300
BR S SKUNK RVR OVERFLOW Iowa Fair 1967 6.4 m 6,300
MAQUOKETA RIVER Iowa Poor 1980 64.6 m 6,294
DRAINAGE DITCH Iowa Fair 1988 16.3 m 6,294
GOOSE CREEK Iowa Good 1997 43.3 m 6,288
DRY CREEK Iowa Good 2010 39.6 m 6,285
US 20 US 52 Iowa Good 1987 78.3 m 6,285
IOWA RIVER Iowa Fair 1934 115.8 m 6,251
MUCHAKINOK CREEK Iowa Good 1997 61.0 m 6,250
TRIB. TO MUCHAKINOCK Iowa Good 1997 8.2 m 6,250
KITTY CREEK Iowa Good 2002 37.5 m 6,250
MUCHAKINOK CREEK Iowa Good 1997 61.0 m 6,250
MUCHAKINOCK CREEK Iowa Good 2001 48.5 m 6,250
KITTY CREEK Iowa Fair 1960 21.9 m 6,250
W BR INDIAN CREEK Iowa Good 2000 43.6 m 6,241
US 20 Iowa Fair 1978 85.3 m 6,217
SALVESEN CREEK Iowa Good 2017 21.6 m 6,200
US 61 Iowa Fair 2011 83.9 m 6,200
SINK CREEK Iowa Good 1983 54.0 m 6,200
I-235/3RD ST. RAMP B Iowa Good 2003 72.5 m 6,200
DRAINAGE DITCH Iowa Good 1988 6.4 m 6,200
OLD MANS CREEK Iowa Good 1983 57.3 m 6,200
WOLF CREEK Iowa Good 2004 11.9 m 6,200
UP RR & MCKINLEY ST Iowa Good 2012 335.3 m 6,200
PERRY CREEK CONDUIT Iowa Fair 2019 28.4 m 6,200
US 20 Iowa Good 1974 81.7 m 6,170
US 20 Iowa Good 1996 75.3 m 6,162
BIG CREEK Iowa Good 1968 48.2 m 6,150
IA 946 & CITY STS& CCP R Iowa Fair 1990 417.6 m 6,150
PERRY CREEK Iowa Fair 1978 27.7 m 6,129
US 20 & US 75 Iowa Fair 1975 97.5 m 6,120
BRANCH OF KITTY CREEK Iowa Fair 1972 8.2 m 6,117
PRICE CREEK Iowa Good 2010 46.6 m 6,100
SOUTH RACCOON RIVER Iowa Good 2015 118.6 m 6,100
IA 946 & CITY STS& CCP R Iowa Fair 1990 437.4 m 6,100
RAMP G OVER I-29 Iowa Fair 1976 102.7 m 6,100
US 20 Iowa Fair 1978 88.1 m 6,100
LITTLE CEDAR CREEK Iowa Good 2005 6.4 m 6,100
PHEASANT CREEK Iowa Fair 2002 7.0 m 6,100
STREAM Iowa Fair 1967 8.8 m 6,100
WILLOW CREEK Iowa Fair 1971 6.4 m 6,100
DRAINAGE DITCH Iowa Fair 1967 31.4 m 6,100
US 20 & US 75 Iowa Fair 1978 88.1 m 6,100
PLUM CREEK Iowa Good 2009 73.8 m 6,100

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.