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 |
|---|---|---|---|---|---|
| HONEY DITCH CREEK | Iowa | Good | 1995 | 43.3 m | 139 |
| NODAWAY RIVER | Iowa | Good | 2002 | 27.7 m | 139 |
| MIDDLE NODAWAY RIVER | Iowa | Fair | 1990 | 39.0 m | 139 |
| SMALL STREAM | Iowa | Good | 2009 | 8.2 m | 139 |
| ALLEN CREEK | Iowa | Poor | 1942 | 31.1 m | 139 |
| MILL CREEK | Iowa | Fair | 1977 | 39.0 m | 139 |
| FLOYD RIVER | Iowa | Good | 2005 | 69.8 m | 139 |
| NORTH RIVER | Iowa | Good | 1989 | 12.2 m | 139 |
| PRARIE CREEK | Iowa | Good | 1991 | 23.8 m | 139 |
| SMALL STREAM | Iowa | Fair | 1986 | 7.3 m | 139 |
| NORTH RACCOON RIVER | Iowa | Fair | 1980 | 126.8 m | 139 |
| DRAINAGE DITCH | Iowa | Fair | 1933 | 7.3 m | 139 |
| SMALL STREAM | Iowa | Fair | 1986 | 7.3 m | 139 |
| LITTLE SIOUX RIVER | Iowa | Fair | 1974 | 30.5 m | 139 |
| MIDDLE RIVER | Iowa | Fair | 1987 | 76.2 m | 139 |
| CREEK | Iowa | Fair | 1972 | 7.9 m | 139 |
| SMALL STREAM | Iowa | Poor | 1938 | 10.7 m | 139 |
| BEAVER CREEK | Iowa | Fair | 1920 | 31.7 m | 139 |
| I-29 | Iowa | Good | 1966 | 69.2 m | 139 |
| INDIAN CREEK | Iowa | Good | 2017 | 31.1 m | 139 |
| LITTLE SIOUX | Iowa | Good | 1991 | 38.1 m | 139 |
| W FORK LITTLE SIOUX | Iowa | Good | 2017 | 34.1 m | 139 |
| FIDDLE CREEK | Iowa | Good | 2017 | 31.1 m | 139 |
| SEVEN MILE CREEK | Iowa | Poor | 1974 | 39.0 m | 139 |
| DRAINAGE | Iowa | Poor | 1951 | 13.7 m | 139 |
| SKUNK RIVER | Iowa | Fair | 1939 | 46.3 m | 139 |
| ROCK RIVER | Iowa | Fair | 1969 | 167.3 m | 139 |
| SPRING CREEK | Iowa | Good | 2009 | 7.0 m | 138 |
| PRAIRIE CREEK | Iowa | Good | 1986 | 69.8 m | 137 |
| OTTER CREEK | Iowa | Fair | 1974 | 27.7 m | 137 |
| TISSLE HOLLOW CREEK | Iowa | Fair | 2010 | 14.3 m | 137 |
| SILVER CREEK | Iowa | Good | 1990 | 34.4 m | 137 |
| ELK CREEK | Iowa | Poor | 2001 | 19.5 m | 137 |
| STREAM | Iowa | Fair | 1925 | 9.4 m | 137 |
| BIG BEAR CREEK | Iowa | Fair | 1983 | 46.0 m | 137 |
| TRIB CEDAR R | Iowa | Fair | 1997 | 14.6 m | 137 |
| PAINT CREEK | Iowa | Fair | 1957 | 53.6 m | 137 |
| PAINT CREEK | Iowa | Poor | 1957 | 21.3 m | 137 |
| SILVER CREEK | Iowa | Good | 1983 | 55.5 m | 137 |
| BIKE TRAIL | Iowa | Good | 1995 | 39.0 m | 137 |
| BEAVER CREEK | Iowa | Good | 1987 | 109.7 m | 137 |
| COON CREEK | Iowa | Fair | 1997 | 11.9 m | 137 |
| SMALL STREAM | Iowa | Good | 2018 | 11.6 m | 137 |
| LITTLE WAPSIPINICON | Iowa | Fair | 1965 | 61.6 m | 137 |
| W OTTER CREEK | Iowa | Good | 1983 | 47.2 m | 137 |
| TROUT CREEK BRANCH | Iowa | Good | 1995 | 27.7 m | 137 |
| TROUT CREEK | Iowa | Good | 1995 | 31.4 m | 137 |
| DRAINAGE DITCH | Iowa | Fair | 1954 | 11.0 m | 137 |
| SPRING BRANCH | Iowa | Good | 1982 | 31.1 m | 137 |
| SOUTH HOOSIER CREEK | Iowa | Fair | 1987 | 14.3 m | 137 |
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.