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.
| Bridge | Location | Condition | Year Built | Length | ADT |
|---|---|---|---|---|---|
| ENGLISH CREEK | Iowa | Good | 1987 | 6.7 m | 1,120 |
| BNSF RR | Iowa | Good | 2010 | 57.6 m | 1,120 |
| LITTLE SIOUX RIVER | Iowa | Fair | 1973 | 129.5 m | 1,120 |
| SMALL STREAM | Iowa | Good | 1992 | 6.1 m | 1,120 |
| NISHNA RIVER OVERFLOW | Iowa | Good | 1995 | 40.5 m | 1,120 |
| EAST NISHNABOTNA RIVER | Iowa | Fair | 1959 | 99.1 m | 1,120 |
| OVER CC RR | Iowa | Good | 1991 | 61.3 m | 1,120 |
| E BR LAKE CREEK | Iowa | Good | 1991 | 37.5 m | 1,120 |
| WEST BR INDIAN CREEK | Iowa | Fair | 1998 | 35.1 m | 1,119 |
| OTTER CREEK | Iowa | Good | 2015 | 40.2 m | 1,119 |
| BLOODY RUN CREEK | Iowa | Good | 2001 | 24.4 m | 1,119 |
| PRAIRIE CREEK | Iowa | Good | 2017 | 31.4 m | 1,119 |
| SMALL STREAM | Iowa | Good | 1960 | 7.9 m | 1,117 |
| I-35 | Iowa | Fair | 1965 | 67.7 m | 1,117 |
| SMALL NATURAL STREAM | Iowa | Poor | 1939 | 7.6 m | 1,117 |
| UNNAMED CREEK | Iowa | Fair | 1900 | 8.5 m | 1,117 |
| LITTLE WATERMAN CREEK | Iowa | Good | 1969 | 31.4 m | 1,117 |
| LITTLE SIOUX RIVER | Iowa | Good | 2013 | 127.4 m | 1,112 |
| LATERAL #77 DD #23 | Iowa | Fair | 1900 | 6.1 m | 1,112 |
| STREAM | Iowa | Fair | 1916 | 7.3 m | 1,110 |
| BR PRAIRIE CR | Iowa | Fair | 1977 | 7.0 m | 1,110 |
| CITY STS | Iowa | Fair | 1993 | 55.5 m | 1,110 |
| MOSQUITO CREEK | Iowa | Fair | 1959 | 65.5 m | 1,110 |
| KEG CREEK | Iowa | Fair | 1967 | 15.2 m | 1,110 |
| STREAM | Iowa | Fair | 1962 | 6.4 m | 1,110 |
| NORTH RACCOON RIVER | Iowa | Fair | 1973 | 62.2 m | 1,109 |
| SMALL NATURAL STREAM | Iowa | Fair | 1968 | 7.9 m | 1,109 |
| IOWAY CREEK | Iowa | Fair | 1963 | 47.2 m | 1,108 |
| WALNUT CREEK | Iowa | Good | 2013 | 52.7 m | 1,107 |
| BURR OAK CREEK | Iowa | Fair | 1991 | 7.9 m | 1,100 |
| BEAVER CREEK | Iowa | Good | 1984 | 92.4 m | 1,100 |
| TRIB TO CEDAR RIVER | Iowa | Good | 2015 | 21.3 m | 1,100 |
| SMALL CREEK | Iowa | Good | 1985 | 14.0 m | 1,100 |
| WILDCAT CREEK | Iowa | Fair | 1987 | 39.0 m | 1,100 |
| BUFFALO CREEK | Iowa | Fair | 1973 | 46.3 m | 1,100 |
| HUNTER CREEK | Iowa | Good | 2000 | 61.3 m | 1,100 |
| SAWYER CREEK | Iowa | Fair | 1925 | 7.7 m | 1,100 |
| BRANCH PRAIRIE CREEK | Iowa | Fair | 1959 | 9.4 m | 1,100 |
| BRUSH CREEK | Iowa | Fair | 1960 | 48.5 m | 1,100 |
| LITTLE MILL CREEK | Iowa | Good | 1976 | 42.1 m | 1,100 |
| US 30 | Iowa | Good | 2008 | 76.2 m | 1,100 |
| ENGLISH CREEK | Iowa | Good | 1999 | 43.9 m | 1,100 |
| OVER UP RR | Iowa | Fair | 1961 | 46.6 m | 1,100 |
| OVER CC RR | Iowa | Fair | 1978 | 47.2 m | 1,100 |
| DES MOINES RIVER | Iowa | Good | 2016 | 248.7 m | 1,100 |
| SKILLET CREEK | Iowa | Good | 2018 | 6.6 m | 1,100 |
| OPOSSUM CREEK | Iowa | Fair | 1959 | 44.8 m | 1,100 |
| HOOSIER CREEK | Iowa | Fair | 1984 | 8.2 m | 1,099 |
| BURR OAK CREEK | Iowa | Fair | 1967 | 14.0 m | 1,097 |
| WILLOW CREEK | Iowa | Fair | 1965 | 30.5 m | 1,097 |
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.