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 |
|---|---|---|---|---|---|
| MUCHIKINOCK CREEK | Iowa | Fair | 1990 | 7.6 m | 274 |
| MUCHINOCK CREEK | Iowa | Fair | 1990 | 7.6 m | 274 |
| MUCHINOCK CREEK | Iowa | Fair | 1990 | 7.6 m | 274 |
| LITTLE MAQUOKETA RIVER | Iowa | Fair | 1984 | 39.0 m | 274 |
| MUCHINOCK CREEK | Iowa | Fair | 1990 | 11.6 m | 274 |
| TARKIO CREEK | Iowa | Fair | 1988 | 39.3 m | 274 |
| I-80 | Iowa | Good | 1962 | 66.4 m | 272 |
| BLUE GRASS CREEK | Iowa | Good | 2022 | 31.4 m | 271 |
| ENGLISH RIVER | Iowa | Good | 1998 | 99.4 m | 270 |
| EMERY CREEK | Iowa | Fair | 1980 | 19.2 m | 270 |
| DRY RUN CREEK | Iowa | Fair | 1958 | 7.3 m | 270 |
| STREAM | Iowa | Good | 2000 | 53.6 m | 270 |
| CREEK | Iowa | Good | 1998 | 6.7 m | 270 |
| I-29 | Iowa | Fair | 1967 | 66.8 m | 270 |
| OVER UP RR | Iowa | Fair | 1994 | 62.8 m | 270 |
| CROOKED CREEK | Iowa | Fair | 1987 | 69.8 m | 270 |
| WHITE OAK CREEK | Iowa | Fair | 1990 | 10.7 m | 270 |
| DRAINAGE | Iowa | Poor | 1964 | 30.5 m | 270 |
| LITTLE BEAR CREEK | Iowa | Good | 2011 | 43.0 m | 270 |
| LYONS CREEK | Iowa | Fair | 2003 | 13.7 m | 270 |
| CREEK | Iowa | Good | 1966 | 39.0 m | 270 |
| ROCK CREEK | Iowa | Poor | 1964 | 15.2 m | 270 |
| SKUNK RIVER | Iowa | Fair | 1962 | 18.9 m | 270 |
| NO NAME CREEK | Iowa | Fair | 1966 | 21.3 m | 270 |
| DIRTY FACE CREEK | Iowa | Fair | 1980 | 27.7 m | 270 |
| BR DIRTY FACE CR | Iowa | Fair | 1977 | 27.7 m | 270 |
| PILOT CREEK | Iowa | Good | 2015 | 25.3 m | 270 |
| LITTLE SIOUX RIVER | Iowa | Poor | 1966 | 53.3 m | 270 |
| SMALL STREAM | Iowa | Fair | 1985 | 7.3 m | 270 |
| STREAM | Iowa | Fair | 1978 | 27.7 m | 270 |
| BIG CREEK | Iowa | Poor | 1964 | 43.3 m | 270 |
| STONEY CREEK | Iowa | Fair | 1965 | 39.0 m | 270 |
| W BR FLOYD RIVER | Iowa | Fair | 1968 | 45.7 m | 270 |
| BNSF RR | Iowa | Good | 2003 | 63.7 m | 270 |
| SMALL | Iowa | Good | 2008 | 6.7 m | 270 |
| PILOT CK DD #63 | Iowa | Good | 2006 | 27.7 m | 270 |
| WINNEBAGO RIVER | Iowa | Fair | 2002 | 34.4 m | 270 |
| POTATO CREEK | Iowa | Good | 2007 | 7.0 m | 270 |
| GRAND RIVER | Iowa | Fair | 1973 | 54.9 m | 270 |
| LOTTS CREEK | Iowa | Fair | 1973 | 39.0 m | 270 |
| W FK GRAND RIVER | Iowa | Fair | 1979 | 78.0 m | 270 |
| MOSQUITO CREEK | Iowa | Fair | 1999 | 35.1 m | 270 |
| NO NAME CREEK | Iowa | Fair | 1968 | 23.5 m | 270 |
| DD 81 | Iowa | Fair | 1988 | 7.3 m | 270 |
| STREAM | Iowa | Good | 2012 | 7.3 m | 270 |
| STREAM | Iowa | Poor | 1981 | 19.2 m | 270 |
| SUGAR CREEK | Iowa | Poor | 1950 | 21.0 m | 270 |
| SMALL STREAM | Iowa | Poor | 1925 | 6.7 m | 270 |
| WALNUT CREEK | Iowa | Fair | 1992 | 43.0 m | 270 |
| HARDIN CREEK | Iowa | Fair | 1961 | 31.1 m | 270 |
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.