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
ASH AVE Iowa Good 2006 45.4 m 3,650
SUGAR CREEK Iowa Good 2002 52.9 m 3,650
VACANT LOTS Iowa Good 1991 176.8 m 3,650
DES MOINES RIVER Iowa Fair 2002 276.5 m 3,650
S 6TH AVE Iowa Fair 1970 53.6 m 3,650
295TH ST AND BNSF RR Iowa Good 2001 86.9 m 3,650
RALSTON CREEK Iowa Fair 1953 17.1 m 3,650
STREAM Iowa Fair 1959 7.6 m 3,640
IOWAY CREEK Iowa Fair 1982 62.2 m 3,640
NORTH RACCOON RIVER Iowa Fair 1976 129.5 m 3,640
TRIB. TO SUGAR CREEK Iowa Fair 2000 7.6 m 3,636
MIDDLE FORK CATFISH CRK Iowa Fair 1949 9.1 m 3,632
DRAINAGE DITCH Iowa Fair 1971 7.9 m 3,630
KITTY CREEK Iowa Fair 1973 48.2 m 3,630
I 35 & I 80 Iowa Good 2017 91.7 m 3,615
LITTLE WALNUT CREEK Iowa Fair 1975 7.9 m 3,612
STREAM Iowa Good 1900 7.6 m 3,610
DRAINAGE DITCH Iowa Fair 1972 11.6 m 3,610
W FORK FLOYD RIVER Iowa Fair 1972 72.5 m 3,610
BEAR CREEK Iowa Good 2012 43.6 m 3,610
ORANGE CITY SLOUGH Iowa Fair 1973 9.9 m 3,610
W FORK FLOYD RIVER Iowa Fair 1972 72.5 m 3,610
ANSON CREEK Iowa Fair 1976 11.9 m 3,603
IA 3 Iowa Good 1996 61.3 m 3,600
IA 14 Iowa Good 1995 82.9 m 3,600
DES MOINES RIVER Iowa Fair 2002 276.5 m 3,600
US 52 SB Iowa Good 1987 59.7 m 3,600
US 52 SB Iowa Good 1987 59.7 m 3,600
295TH ST AND BNSF RR Iowa Fair 2001 90.5 m 3,600
SUGAR CREEK Iowa Fair 1989 53.3 m 3,600
US 30 (E.JCT) Iowa Fair 1965 72.8 m 3,600
EAST INDIAN CREEK Iowa Good 1987 31.4 m 3,600
EAST INDIAN CREEK Iowa Fair 1973 31.4 m 3,600
OVER CC RR Iowa Good 1973 62.5 m 3,600
OVER CC RR Iowa Fair 1973 62.2 m 3,600
US 20 Iowa Good 1996 47.9 m 3,596
DRAINAGE DITCH Iowa Good 1969 8.3 m 3,596
US 30 & US 218 Iowa Good 1985 86.0 m 3,596
DRY RUN CREEK Iowa Fair 1968 7.6 m 3,587
UP RR & LYNN CK Iowa Poor 1971 216.4 m 3,584
EAST NODAWAY RIVER Iowa Fair 1976 64.9 m 3,580
OVER BNSF RR Iowa Good 1976 59.7 m 3,580
BLOODY RUN CREEK Iowa Good 1994 54.9 m 3,580
WALNUT CREEK Iowa Fair 1988 76.5 m 3,579
ELK RUN CREEK Iowa Fair 1971 53.6 m 3,574
WALNUT CREEK Iowa Fair 1925 15.2 m 3,570
US 30 Iowa Fair 1971 79.6 m 3,570
IAIS RR Iowa Fair 1923 62.5 m 3,562
OVER BNSF RR Iowa Fair 1974 66.1 m 3,560
SMALL STREAM Iowa Fair 1960 6.4 m 3,550

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.