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 |
|---|---|---|---|---|---|
| N. FORK LONG CREEK | Iowa | Poor | 1925 | 12.8 m | 160 |
| SKUNK RIVER | Iowa | Fair | 1986 | 164.0 m | 160 |
| COMPETINE CREEK | Iowa | Good | 2021 | 15.2 m | 160 |
| LITTLE BEAR CREEK | Iowa | Fair | 1963 | 7.0 m | 160 |
| SMALL | Iowa | Good | 1987 | 6.7 m | 160 |
| STREAM | Iowa | Poor | 1930 | 12.2 m | 160 |
| ST JOSEPH CREEK | Iowa | Good | 1999 | 7.9 m | 160 |
| LITTLE FLINT CREEK | Iowa | Good | 1998 | 10.7 m | 160 |
| CREEK | Iowa | Fair | 1946 | 7.0 m | 160 |
| W BR WAPSIPINICON CREEK | Iowa | Good | 2009 | 31.4 m | 160 |
| BR IOWA RIVER | Iowa | Good | 2018 | 8.8 m | 160 |
| SALT CREEK | Iowa | Fair | 2022 | 30.5 m | 160 |
| BIG CREEK | Iowa | Good | 1989 | 66.1 m | 160 |
| MIDDLE MAQUOKETA RIVER | Iowa | Fair | 1974 | 35.4 m | 160 |
| US 61 | Iowa | Fair | 1970 | 94.2 m | 160 |
| CREEK | Iowa | Fair | 1957 | 8.2 m | 160 |
| STREAM | Iowa | Good | 1989 | 66.1 m | 160 |
| SMALL STREAM | Iowa | Good | 2018 | 6.8 m | 160 |
| WALNUT CREEK | Iowa | Fair | 1974 | 9.8 m | 160 |
| BITTER CREEK | Iowa | Good | 2020 | 36.9 m | 160 |
| FOX RIVER | Iowa | Fair | 1964 | 92.7 m | 160 |
| DD 30 SPRING CREEK | Iowa | Fair | 1964 | 8.5 m | 160 |
| DRAINAGE | Iowa | Good | 2004 | 47.2 m | 160 |
| U.S. 20 | Iowa | Good | 1990 | 77.1 m | 159 |
| NISHNABOTNA RIVER | Iowa | Good | 2013 | 95.1 m | 159 |
| NO NAME CREEK | Iowa | Good | 1993 | 10.1 m | 159 |
| PERRY CREEK | Iowa | Fair | 1940 | 9.8 m | 159 |
| JORDAN CREEK | Iowa | Poor | 1958 | 44.2 m | 159 |
| MOSQUITO CREEK | Iowa | Fair | 1970 | 47.2 m | 159 |
| SMALL STREAM | Iowa | Good | 1985 | 7.9 m | 159 |
| ROCK RIVER | Iowa | Fair | 1961 | 175.0 m | 159 |
| TRIB TO MUD CREEK | Iowa | Good | 2000 | 6.4 m | 159 |
| WHISKEY CREEK | Iowa | Fair | 1990 | 10.7 m | 159 |
| MILL CREEK | Iowa | Good | 2008 | 58.2 m | 159 |
| WATERWAY | Iowa | Poor | 1955 | 9.8 m | 159 |
| TARKIO CREEK | Iowa | Poor | 1949 | 43.9 m | 159 |
| SOLDIER CREEK | Iowa | Poor | 1949 | 55.8 m | 159 |
| UPPER SOLDIER RIVER | Iowa | Good | 2011 | 46.9 m | 159 |
| WALNUT CREEK | Iowa | Good | 1996 | 21.9 m | 159 |
| W BR BLUE EARTH RIVER | Iowa | Good | 2016 | 37.1 m | 159 |
| MOSER CREEK | Iowa | Fair | 1981 | 39.0 m | 159 |
| BROKEN KETTLE CREEK | Iowa | Poor | 1960 | 45.7 m | 159 |
| SMALL STREAM | Iowa | Good | 2007 | 7.0 m | 159 |
| BUFFALO CREEK | Iowa | Poor | 1965 | 26.5 m | 159 |
| STREAM | Iowa | Fair | 1963 | 6.7 m | 159 |
| BRUSHY CREEK | Iowa | Good | 1993 | 23.8 m | 159 |
| BRUSHY CREEK SPILLWAY | Iowa | Good | 1998 | 56.4 m | 159 |
| UNNAMED DRAINAGE | Iowa | Good | 2015 | 9.8 m | 159 |
| LOTTS CREEK | Iowa | Fair | 1966 | 39.3 m | 159 |
| I-80 | Iowa | Good | 1965 | 69.2 m | 159 |
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.