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 |
|---|---|---|---|---|---|
| LITTLE ROCK RIVER | Iowa | Poor | 1968 | 53.6 m | 131 |
| STORM CREEK | Iowa | Fair | 1980 | 23.5 m | 131 |
| EAST BR INDIAN CREEK | Iowa | Good | 2014 | 46.0 m | 131 |
| GREENBRIER CREEK | Iowa | Good | 2017 | 26.5 m | 131 |
| MAPLE RIVER | Iowa | Fair | 1976 | 86.3 m | 131 |
| PLUM CREEK | Iowa | Good | 2007 | 25.3 m | 131 |
| SILVER CREEK | Iowa | Poor | 1960 | 31.4 m | 131 |
| LITTLE SILVER CREEK | Iowa | Fair | 1950 | 6.4 m | 131 |
| SOUTH FORK LONG CREEK | Iowa | Fair | 1965 | 13.7 m | 131 |
| DRAINAGE | Iowa | Good | 2003 | 7.6 m | 131 |
| CREEK | Iowa | Poor | 1918 | 11.6 m | 131 |
| DRAINAGE | Iowa | Poor | 1958 | 7.6 m | 131 |
| SMALL STREAM | Iowa | Fair | 1974 | 6.4 m | 131 |
| BOYER RIVER | Iowa | Good | 1975 | 75.0 m | 131 |
| N FORK LONG CR | Iowa | Poor | 1953 | 21.3 m | 131 |
| WEST BR INDIAN CREEK | Iowa | Good | 2015 | 36.7 m | 131 |
| NORTH RIVER | Iowa | Good | 1992 | 70.1 m | 131 |
| SMALL STREAM | Iowa | Good | 1999 | 13.1 m | 131 |
| DRAINAGE | Iowa | Poor | 1955 | 7.0 m | 131 |
| BRANCH BEE CREEK | Iowa | Poor | 1985 | 6.4 m | 131 |
| WILLOW CREEK | Iowa | Fair | 1972 | 7.3 m | 131 |
| NORTH RIVER | Iowa | Fair | 1975 | 38.7 m | 131 |
| SEVEN MILE CREEK | Iowa | Poor | 1957 | 21.3 m | 131 |
| BADGER CREEK | Iowa | Poor | 1955 | 9.1 m | 131 |
| WEST BRANCH | Iowa | Poor | 1957 | 38.4 m | 131 |
| FLOYD RIVER | Iowa | Good | 2013 | 69.8 m | 131 |
| GRANT 5 OPEN DITCH EXT | Iowa | Poor | 1916 | 7.9 m | 131 |
| GRAND RIVER | Iowa | Poor | 1957 | 46.3 m | 131 |
| BADGER CREEK | Iowa | Fair | 1960 | 38.4 m | 131 |
| BUCKLEY CREEK | Iowa | Poor | 1929 | 13.1 m | 131 |
| STREAM | Iowa | Fair | 1974 | 31.4 m | 131 |
| I-380 | Iowa | Good | 1971 | 76.2 m | 131 |
| MUD CREEK | Iowa | Fair | 1978 | 31.4 m | 131 |
| SUGAR CREEK | Iowa | Good | 1978 | 51.5 m | 131 |
| BOX ELDER CREEK | Iowa | Fair | 1985 | 31.4 m | 131 |
| BREWERS CREEK | Iowa | Fair | 1978 | 9.4 m | 131 |
| WEST FORK LITTLE SIOUX | Iowa | Good | 1967 | 53.3 m | 131 |
| INDIAN CREEK TRIB | Iowa | Fair | 1957 | 24.4 m | 131 |
| CYLINDER CREEK | Iowa | Fair | 1975 | 23.8 m | 131 |
| HENSCHAL CREEK | Iowa | Fair | 1983 | 9.4 m | 131 |
| SMALL CREEK | Iowa | Good | 2021 | 37.8 m | 131 |
| W FORK FLOYD RIV | Iowa | Fair | 1969 | 54.6 m | 131 |
| CREEK | Iowa | Good | 1997 | 6.7 m | 131 |
| BR IOWA RIVER | Iowa | Good | 2018 | 25.5 m | 131 |
| OTTER CREEK | Iowa | Good | 1993 | 26.8 m | 131 |
| SMALL STREAM | Iowa | Fair | 2000 | 12.8 m | 131 |
| NISHNABOTNA RIVER | Iowa | Poor | 1951 | 64.9 m | 131 |
| CREEK | Iowa | Good | 1999 | 7.6 m | 131 |
| BRANCH LITTLE SIOUX | Iowa | Fair | 1966 | 8.5 m | 131 |
| US 30 | Iowa | Good | 1996 | 81.7 m | 131 |
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.