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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.

Clear
BridgeLocationConditionYear BuiltLengthADT
NB US 63 Iowa Good 1991 129.8 m 10,800
IMRL RR Iowa Good 1970 54.6 m 10,800
HESS RD Iowa Good 1983 58.2 m 10,800
MAIN ST Iowa Fair 1970 66.1 m 10,800
INDIAN CREEK Iowa Poor 1988 69.2 m 10,789
WEST BLUE CREEK Iowa Good 1982 57.6 m 10,750
EAST BLUE CREEK Iowa Good 1982 47.2 m 10,750
E 4 MI IAI RR & N PL HL Iowa Fair 1965 181.7 m 10,750
VANDALIA RD (BP) Iowa Good 1997 59.7 m 10,750
WEST BLUE CREEK Iowa Good 1982 57.6 m 10,750
E 4 MILE CREEK & IAI RR Iowa Fair 1965 181.7 m 10,750
SE 64TH AVE Iowa Fair 1997 90.5 m 10,750
EAST BLUE CREEK Iowa Fair 1982 47.2 m 10,750
CO RD (B-35) Iowa Fair 1972 46.9 m 10,750
PERRY CREEK Iowa Fair 1959 46.6 m 10,721
UP AND CRANDIC RR Iowa Good 2006 73.5 m 10,700
I-380 Iowa Fair 1982 81.7 m 10,700
WINNEBAGO RIVER Iowa Good 1970 75.3 m 10,700
OVER UP RR Iowa Fair 1970 63.7 m 10,700
PRAIRIE CREEK & UP RR Iowa Good 2009 274.9 m 10,700
DRAINAGE DITCH Iowa Good 1998 7.9 m 10,700
DRAINAGE DITCH Iowa Good 1980 7.6 m 10,700
CRANDIC RR Iowa Fair 2006 92.1 m 10,700
UNNAMED TRIBUTARY Iowa Good 2006 7.3 m 10,700
IANR RR TX ST CEDAR RVR Iowa Fair 1983 270.4 m 10,700
DRAINAGE DITCH Iowa Fair 1980 10.1 m 10,700
CRANDIC RR Iowa Good 2009 107.9 m 10,700
I 29 2 AVE EB BDWY FRT R Iowa Good 2023 640.1 m 10,700
DRAINAGE Iowa Fair 1980 8.5 m 10,700
US 6 Iowa Fair 1993 84.7 m 10,650
US 69 Iowa Fair 1963 65.2 m 10,600
STREAM Iowa Good 1996 8.8 m 10,600
I-80 Iowa Good 2001 103.9 m 10,600
SR R63 (SW 9TH) Iowa Fair 2000 84.4 m 10,550
SR R63 (SW 9TH) Iowa Fair 2000 84.4 m 10,550
SE 64TH AVE Iowa Good 1997 91.1 m 10,550
I-235 Iowa Good 2003 83.8 m 10,548
B 35 (240TH ST) Iowa Good 1972 46.9 m 10,500
WINNEBAGO RIVER Iowa Fair 1971 75.3 m 10,500
OVER UP RR Iowa Fair 1970 63.7 m 10,500
IA 163 Iowa Good 1994 82.6 m 10,500
NE 46TH AVE Iowa Good 1994 98.1 m 10,500
CEDAR RIVER Iowa Fair 1967 101.8 m 10,500
DUCK CREEK Iowa Fair 1983 45.7 m 10,500
DUCK CREEK Iowa Good 1963 51.8 m 10,500
MISSISSIPPI RIVER RR RD Iowa Fair 1985 1,019.9 m 10,500
STREAM Iowa Good 1960 6.4 m 10,500
OLD MAN CREEK OVERFLOW Iowa Good 1983 31.4 m 10,450
LINN CREEK Iowa Poor 1951 32.0 m 10,448
STREAM Iowa Good 2000 6.7 m 10,400

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.