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 |
|---|---|---|---|---|---|
| WALNUT CREEK | Iowa | Good | 2015 | 52.1 m | 222 |
| WALNUT CREEK | Iowa | Good | 2015 | 52.1 m | 222 |
| BOONE RIVER | Iowa | Good | 2004 | 62.2 m | 220 |
| SOUTH SKUNK RIVER | Iowa | Fair | 1969 | 166.1 m | 220 |
| SILVER CREEK | Iowa | Good | 2009 | 43.6 m | 220 |
| BIG SLOUGH CREEK | Iowa | Fair | 1982 | 12.2 m | 220 |
| EAST CEDAR CREEK | Iowa | Poor | 1968 | 31.1 m | 220 |
| US 218 | Iowa | Good | 1997 | 87.8 m | 220 |
| DRAINAGE | Iowa | Poor | 1900 | 16.2 m | 220 |
| I 80 | Iowa | Good | 2023 | 89.9 m | 220 |
| NORTH SKUNK RIVER | Iowa | Good | 2014 | 143.6 m | 220 |
| SMALL STREAM | Iowa | Fair | 1974 | 32.6 m | 220 |
| JACK CREEK | Iowa | Good | 2011 | 7.6 m | 219 |
| STREAM | Iowa | Good | 2006 | 23.8 m | 219 |
| GRAND RIVER | Iowa | Good | 2018 | 111.6 m | 219 |
| SAND CREEK | Iowa | Good | 2019 | 46.0 m | 219 |
| DD 181 BIG CEDAR | Iowa | Poor | 1938 | 37.2 m | 219 |
| DD NO. 976 | Iowa | Fair | 1938 | 16.2 m | 219 |
| SKUNK RIVER | Iowa | Good | 2011 | 78.9 m | 219 |
| DD NO. 1 | Iowa | Fair | 1964 | 17.4 m | 219 |
| BEAVER CREEK | Iowa | Fair | 1973 | 38.1 m | 219 |
| WEST WOLF CREEK | Iowa | Good | 2014 | 6.4 m | 219 |
| SILVER CREEK | Iowa | Fair | 2014 | 31.0 m | 219 |
| SOUTH RACCOON RIVER | Iowa | Fair | 1969 | 55.2 m | 219 |
| INDIAN CREEK | Iowa | Fair | 1971 | 38.1 m | 219 |
| LITTLE TARKIO | Iowa | Poor | 1958 | 31.4 m | 219 |
| CREEK | Iowa | Good | 2005 | 12.2 m | 219 |
| CREEK | Iowa | Poor | 1962 | 8.2 m | 219 |
| SOLDIER RIVER | Iowa | Good | 1971 | 54.3 m | 219 |
| OCHEYEDAN RIVER | Iowa | Fair | 1976 | 58.5 m | 219 |
| SMALL CREEK | Iowa | Fair | 1958 | 21.3 m | 219 |
| TARKIO CREEK | Iowa | Poor | 1955 | 46.6 m | 219 |
| TARKIO CREEK TRIB | Iowa | Poor | 1959 | 29.0 m | 219 |
| W FORK GRAND RIVER | Iowa | Poor | 1956 | 77.4 m | 219 |
| SMALL WATERWAY | Iowa | Good | 1993 | 6.1 m | 219 |
| STREAM | Iowa | Fair | 1966 | 7.9 m | 219 |
| WEST BR INDIAN CREEK | Iowa | Good | 2004 | 57.3 m | 219 |
| DRAINAGE | Iowa | Poor | 1930 | 6.1 m | 219 |
| NO NAME CREEK | Iowa | Good | 2011 | 28.3 m | 219 |
| WILLOW CREEK | Iowa | Fair | 1963 | 21.6 m | 219 |
| WEST LONG CREEK | Iowa | Good | 2021 | 27.7 m | 219 |
| WELCH CREEK | Iowa | Good | 1991 | 8.8 m | 219 |
| BEAR CREEK | Iowa | Fair | 1979 | 25.0 m | 219 |
| TRINKLE CREEK | Iowa | Good | 1977 | 27.1 m | 219 |
| INDIAN CREEK | Iowa | Fair | 1930 | 13.7 m | 217 |
| DRAINAGE DITCH | Iowa | Poor | 1973 | 9.4 m | 216 |
| MUNNS CREEK | Iowa | Poor | 1955 | 9.1 m | 216 |
| EAST OTTER CREEK | Iowa | Good | 2000 | 7.3 m | 216 |
| IOWA RIVER | Iowa | Poor | 1938 | 100.9 m | 216 |
| CREEK | Iowa | Poor | 1934 | 18.6 m | 216 |
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.