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 |
|---|---|---|---|---|---|
| KLONDIKE CREEK | Iowa | Poor | 1966 | 30.5 m | 309 |
| W FK W NISHNABOTNA RIVER | Iowa | Good | 1996 | 58.5 m | 309 |
| JOHNS CREEK | Iowa | Good | 1977 | 53.3 m | 309 |
| KING CREEK | Iowa | Good | 2007 | 7.9 m | 309 |
| SMALL STREAM | Iowa | Good | 2012 | 7.6 m | 309 |
| WEST BRANCH 102 RIVER | Iowa | Poor | 1936 | 45.7 m | 309 |
| EAST NODAWAY RIVER | Iowa | Good | 2009 | 66.1 m | 309 |
| DD 63 | Iowa | Good | 2014 | 25.5 m | 309 |
| WEST 102 RIVER | Iowa | Poor | 1985 | 43.3 m | 309 |
| WATERMAN CREEK | Iowa | Good | 1965 | 6.7 m | 309 |
| WATERMAN CREEK | Iowa | Fair | 1977 | 11.3 m | 309 |
| NO LIZARD CK DD #77 | Iowa | Good | 2005 | 27.7 m | 309 |
| DD 84 | Iowa | Good | 2006 | 23.8 m | 309 |
| REYNOLDS CREEK | Iowa | Good | 1986 | 50.9 m | 309 |
| DD84 | Iowa | Good | 2021 | 31.4 m | 309 |
| DD 84 | Iowa | Good | 2006 | 24.4 m | 309 |
| PLESSIS CREEK | Iowa | Good | 1964 | 11.0 m | 309 |
| IA 9 | Iowa | Fair | 1969 | 65.2 m | 309 |
| LITTLE SIOUX RIVER | Iowa | Good | 2018 | 62.2 m | 309 |
| DRAINAGE | Iowa | Good | 2003 | 8.2 m | 306 |
| DRAINAGE DITCH | Iowa | Poor | 1994 | 23.8 m | 305 |
| BOONE RIVER | Iowa | Good | 2012 | 58.5 m | 305 |
| BEAVER CREEK | Iowa | Fair | 1961 | 7.3 m | 304 |
| SKUNK RIVER TRIBUTARY | Iowa | Good | 2017 | 7.3 m | 304 |
| BRANCH OF RICHLAND CREEK | Iowa | Fair | 2002 | 16.5 m | 304 |
| CARSON CREEK | Iowa | Good | 2005 | 7.0 m | 304 |
| SMALL STREAM | Iowa | Good | 2015 | 11.9 m | 304 |
| BRANCH BURNETTE CREEK | Iowa | Poor | 1984 | 27.4 m | 304 |
| CANOE CREEK | Iowa | Good | 1992 | 23.8 m | 304 |
| BURNETT CREEK | Iowa | Good | 1994 | 34.4 m | 304 |
| SMALL STREAM | Iowa | Good | 2005 | 7.3 m | 304 |
| ROBERTS CREEK | Iowa | Good | 1991 | 62.2 m | 304 |
| DUTCH CREEK | Iowa | Good | 1995 | 9.8 m | 304 |
| UNAMED CR | Iowa | Good | 1988 | 10.5 m | 304 |
| BRANCH OF RICHLAND CREEK | Iowa | Poor | 1967 | 23.8 m | 304 |
| MORGAN CREEK | Iowa | Good | 2016 | 48.3 m | 304 |
| LITTLE MAQUOKETA RIVER | Iowa | Good | 2004 | 68.9 m | 304 |
| KILSON CREEK | Iowa | Good | 2005 | 8.8 m | 304 |
| EAST BOYER RIVER | Iowa | Poor | 1913 | 15.9 m | 303 |
| DRAINAGE DITCH 150-86 | Iowa | Good | 2017 | 21.3 m | 303 |
| TARKIO RIVER | Iowa | Fair | 1977 | 84.1 m | 303 |
| TURKEY CREEK | Iowa | Fair | 1963 | 23.8 m | 300 |
| LITTLE SOAP CREEK | Iowa | Good | 2011 | 37.8 m | 300 |
| WEST TARKIO CREEK | Iowa | Fair | 1979 | 99.1 m | 300 |
| INDIAN CREEK | Iowa | Good | 2020 | 75.0 m | 300 |
| CLEAR CREEK | Iowa | Good | 2022 | 66.1 m | 300 |
| W HOOSIER CR | Iowa | Fair | 1977 | 8.2 m | 300 |
| DD #8 | Iowa | Good | 2017 | 7.9 m | 300 |
| LITTLE WATERMAN CREEK | Iowa | Fair | 1955 | 7.4 m | 300 |
| WEST BEAVER CREEK | Iowa | Poor | 1921 | 7.9 m | 300 |
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.