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 |
|---|---|---|---|---|---|
| JOHNSON CREEK | Iowa | Good | 2023 | 63.1 m | 289 |
| N RACCOON RIVER | Iowa | Good | 1953 | 163.7 m | 289 |
| SMALL STREAM | Iowa | Poor | 1934 | 10.7 m | 289 |
| STREAM | Iowa | Good | 1994 | 7.6 m | 289 |
| ALLEN CREEK | Iowa | Fair | 1970 | 31.7 m | 289 |
| WEST MILL CREEK | Iowa | Good | 2001 | 39.0 m | 289 |
| NISHNABOTNA | Iowa | Good | 2012 | 125.6 m | 289 |
| BRANCH OTTER CREEK | Iowa | Poor | 1970 | 10.7 m | 288 |
| LITTLE BEAVER CREEK | Iowa | Good | 2007 | 15.5 m | 288 |
| MOSQUITO CREEK | Iowa | Fair | 1934 | 56.4 m | 288 |
| WALNUT CREEK | Iowa | Fair | 1985 | 74.1 m | 288 |
| CREEK | Iowa | Fair | 1995 | 15.2 m | 285 |
| TRIB TO BLACK HAWK CREEK | Iowa | Good | 2017 | 10.8 m | 285 |
| BLOODY RUN CREEK | Iowa | Good | 2022 | 28.3 m | 285 |
| CREEK | Iowa | Fair | 1919 | 10.4 m | 285 |
| ALRY RUN CREEK | Iowa | Good | 2000 | 11.6 m | 285 |
| WAPSIPINICON RIVER | Iowa | Poor | 1968 | 8.2 m | 285 |
| WAPSIPINICON RIVER | Iowa | Fair | 1968 | 9.8 m | 285 |
| SUGAR CREEK | Iowa | Good | 1998 | 19.5 m | 285 |
| STREAM | Iowa | Good | 1998 | 25.0 m | 285 |
| MALONE CREEK | Iowa | Fair | 1969 | 38.7 m | 285 |
| SHELL ROCK RIVER | Iowa | Poor | 1963 | 136.6 m | 285 |
| CREEK | Iowa | Fair | 1967 | 11.0 m | 285 |
| TIPTON CREEK | Iowa | Good | 2021 | 33.8 m | 285 |
| WOLF CREEK BRANCH | Iowa | Poor | 1972 | 17.7 m | 285 |
| MUD CREEK | Iowa | Good | 1986 | 34.1 m | 284 |
| PERRY CREEK | Iowa | Good | 2011 | 65.2 m | 283 |
| DRY RUN CREEK | Iowa | Good | 2015 | 9.7 m | 283 |
| PERRY CREEK | Iowa | Good | 2016 | 45.7 m | 283 |
| DRAINAGE | Iowa | Fair | 1977 | 8.2 m | 283 |
| SMALL STREAM | Iowa | Good | 2015 | 13.4 m | 283 |
| MASON CREEK | Iowa | Good | 2016 | 15.0 m | 281 |
| COON CREEK | Iowa | Good | 2022 | 24.7 m | 281 |
| HOG THIEF HOLLOW | Iowa | Fair | 1958 | 6.7 m | 280 |
| JORDAN CREEK | Iowa | Fair | 1965 | 8.8 m | 280 |
| SMALL STREAM | Iowa | Good | 1989 | 6.4 m | 280 |
| SOUTH RIVER | Iowa | Fair | 1950 | 75.6 m | 280 |
| FLINT RIVER | Iowa | Poor | 1941 | 37.2 m | 280 |
| SMALL STREAM | Iowa | Fair | 1965 | 6.4 m | 280 |
| NAGLE CREEK | Iowa | Fair | 2007 | 35.1 m | 280 |
| US 30 | Iowa | Good | 2020 | 93.1 m | 280 |
| OTTER CREEK | Iowa | Good | 1996 | 31.4 m | 280 |
| BOYER RIVER | Iowa | Poor | 1964 | 31.4 m | 280 |
| DUCK VALLEY CREEK | Iowa | Fair | 1965 | 31.1 m | 280 |
| HYERS CREEK | Iowa | Fair | 1978 | 7.3 m | 280 |
| SOLDIER CREEK | Iowa | Good | 1994 | 27.7 m | 279 |
| SMALL CREEK | Iowa | Fair | 1977 | 12.8 m | 279 |
| BEAVER CREEK | Iowa | Fair | 1948 | 55.8 m | 279 |
| CAMP CK | Iowa | Poor | 1973 | 39.0 m | 279 |
| TRIB. OF BEAVER CREEK | Iowa | Poor | 1948 | 7.3 m | 279 |
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.