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 |
|---|---|---|---|---|---|
| LONG CREEK | Iowa | Fair | 1985 | 54.0 m | 123 |
| EAST NISHNABOTNA RIVER | Iowa | Poor | 1900 | 61.3 m | 123 |
| SEVERS CREEK | Iowa | Poor | 1951 | 17.4 m | 123 |
| SHELL ROCK RIVER | Iowa | Fair | 1959 | 27.4 m | 123 |
| DD #28 | Iowa | Fair | 1979 | 9.8 m | 123 |
| LITTLE MEADOWS | Iowa | Fair | 1999 | 8.2 m | 123 |
| STREAM | Iowa | Fair | 1975 | 9.8 m | 123 |
| STREAM | Iowa | Fair | 1900 | 9.8 m | 123 |
| BUFFALO CREEK | Iowa | Fair | 1980 | 24.4 m | 123 |
| SMALL CREEK | Iowa | Fair | 2007 | 6.7 m | 123 |
| W FORK NODAWAY RIVER | Iowa | Good | 2021 | 69.9 m | 123 |
| STREAM | Iowa | Good | 2013 | 7.6 m | 123 |
| BOYER RIVER | Iowa | Poor | 1900 | 44.5 m | 123 |
| DRAINAGE DITCH #34 | Iowa | Good | 2001 | 9.4 m | 123 |
| CREEK | Iowa | Poor | 1916 | 7.6 m | 123 |
| CREEK | Iowa | Poor | 1972 | 9.8 m | 122 |
| SMALL STREAM | Iowa | Good | 2001 | 12.2 m | 122 |
| NICHOLSON CREEK | Iowa | Fair | 1982 | 8.2 m | 122 |
| CAMP CR | Iowa | Fair | 1974 | 21.3 m | 122 |
| BRANCH OF CROOKED CREEK | Iowa | Fair | 1984 | 11.9 m | 122 |
| FRINK CREEK | Iowa | Fair | 1976 | 9.1 m | 121 |
| CLEAR CREEK | Iowa | Good | 2017 | 39.7 m | 121 |
| DRAINAGE | Iowa | Poor | 1985 | 9.8 m | 121 |
| BOYER RIVER | Iowa | Fair | 1949 | 46.3 m | 121 |
| NATURE TRAIL & CK | Iowa | Good | 2015 | 6.4 m | 121 |
| PONY CREEK | Iowa | Fair | 1970 | 31.4 m | 121 |
| MOSQUITO CREEK | Iowa | Good | 2016 | 54.7 m | 121 |
| IAIS RR | Iowa | Good | 2003 | 59.8 m | 120 |
| LIME CREEK | Iowa | Good | 2013 | 7.6 m | 120 |
| CAMP CREEK | Iowa | Fair | 1968 | 25.0 m | 120 |
| MARTINS CR | Iowa | Poor | 1972 | 9.4 m | 120 |
| DRAINAGE DITCH | Iowa | Good | 2017 | 10.9 m | 120 |
| PLUM CREEK | Iowa | Poor | 1954 | 39.0 m | 120 |
| RACOON RIVER | Iowa | Poor | 1920 | 52.1 m | 120 |
| WEST BRANCH FLOYD RIVER | Iowa | Good | 1983 | 46.0 m | 120 |
| SMALL STREAM | Iowa | Good | 1985 | 9.4 m | 120 |
| BEAR CREEK | Iowa | Poor | 1955 | 10.1 m | 120 |
| SS #98 | Iowa | Poor | 1973 | 8.2 m | 120 |
| PITMAN CREEK | Iowa | Poor | 1975 | 8.5 m | 120 |
| LITTLE SOAP CREEK | Iowa | Good | 2002 | 39.0 m | 120 |
| SUGAR CREEK | Iowa | Fair | 1985 | 54.9 m | 120 |
| WEST TARKIO RIVER | Iowa | Poor | 1952 | 39.0 m | 120 |
| SILVER CREEK | Iowa | Good | 1978 | 75.3 m | 120 |
| NISHNABOTNA TRIB | Iowa | Fair | 1959 | 39.0 m | 120 |
| BR BIG CEDAR CK DD #29 | Iowa | Poor | 1966 | 13.7 m | 120 |
| SMALL | Iowa | Fair | 1910 | 6.4 m | 120 |
| STREAM | Iowa | Poor | 1981 | 9.8 m | 120 |
| DRAINAGE | Iowa | Good | 2016 | 7.9 m | 120 |
| CEDAR CREEK | Iowa | Fair | 1957 | 9.8 m | 120 |
| SPRING CREEK | Iowa | Poor | 1965 | 17.4 m | 120 |
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.