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 |
|---|---|---|---|---|---|
| TRIB CEDAR R | Iowa | Fair | 1997 | 14.6 m | 137 |
| BIG BEAR CREEK | Iowa | Fair | 1983 | 46.0 m | 137 |
| STREAM | Iowa | Fair | 1925 | 9.4 m | 137 |
| ELK CREEK | Iowa | Poor | 2001 | 19.5 m | 137 |
| SILVER CREEK | Iowa | Good | 1990 | 34.4 m | 137 |
| TISSLE HOLLOW CREEK | Iowa | Fair | 2010 | 14.3 m | 137 |
| PRAIRIE CREEK | Iowa | Good | 1986 | 69.8 m | 137 |
| SMALL STREAM | Iowa | Good | 2020 | 9.3 m | 137 |
| SMALL STREAM | Iowa | Fair | 1955 | 7.9 m | 137 |
| BRANCH KITTY CREEK | Iowa | Fair | 1959 | 25.0 m | 137 |
| HOOSIER CREEK | Iowa | Fair | 2008 | 21.9 m | 137 |
| I-380 | Iowa | Good | 1983 | 81.7 m | 137 |
| MID SOUTH CREEK | Iowa | Good | 2017 | 30.5 m | 135 |
| SMALL STREAM | Iowa | Fair | 1984 | 11.9 m | 135 |
| STREAM | Iowa | Good | 2017 | 15.2 m | 135 |
| SMALL STREAM | Iowa | Poor | 1975 | 7.6 m | 135 |
| N BRANCH TURKEY RIVER | Iowa | Fair | 1986 | 26.5 m | 135 |
| BEAVER CREEK | Iowa | Fair | 2001 | 8.5 m | 135 |
| STREAM | Iowa | Poor | 1952 | 9.8 m | 135 |
| N BRANCH TURKEY RIVER | Iowa | Good | 2012 | 7.3 m | 135 |
| SMALL STREAM | Iowa | Good | 2004 | 6.4 m | 135 |
| COX CREEK | Iowa | Fair | 2008 | 36.6 m | 135 |
| INDIAN CREEK | Iowa | Good | 2003 | 66.4 m | 135 |
| CREEK | Iowa | Good | 2019 | 11.3 m | 135 |
| SMALL STREAM | Iowa | Good | 2007 | 11.6 m | 135 |
| STREAM | Iowa | Fair | 2005 | 15.2 m | 135 |
| SMALL STREAM | Iowa | Good | 2016 | 8.0 m | 135 |
| BR UPPER IA RIVER | Iowa | Good | 2008 | 7.3 m | 135 |
| SMALL CREEK | Iowa | Fair | 1900 | 9.4 m | 135 |
| HUNTER CR | Iowa | Good | 2006 | 34.1 m | 135 |
| MIDDLE BRANCH BLUE EARTH | Iowa | Good | 2013 | 21.5 m | 134 |
| WEST OTTER CREEK DD 26 | Iowa | Good | 1997 | 23.8 m | 134 |
| BRANCH SOUTH RIVER | Iowa | Fair | 1975 | 7.6 m | 134 |
| SHORT CREEK | Iowa | Fair | 1949 | 26.8 m | 134 |
| EAST IOWA RIVER | Iowa | Fair | 1975 | 20.7 m | 133 |
| DD 80 | Iowa | Fair | 1975 | 23.8 m | 133 |
| PLUM CREEK | Iowa | Poor | 1960 | 17.5 m | 133 |
| RALSTON CREEK S. BRANCH | Iowa | Fair | 1930 | 10.7 m | 133 |
| MAJOR DRAINAGE | Iowa | Poor | 1970 | 9.1 m | 133 |
| STREAM | Iowa | Good | 2018 | 13.6 m | 133 |
| LITTLE BEAR CREEK | Iowa | Fair | 1960 | 37.2 m | 133 |
| NO NAME CREEK | Iowa | Good | 1982 | 7.0 m | 133 |
| NISHNABOTNA RIVER | Iowa | Fair | 1972 | 96.3 m | 133 |
| BAYOU-NISHNABOTNA | Iowa | Good | 1999 | 46.6 m | 133 |
| BNSF RR | Iowa | Good | 2019 | 79.9 m | 133 |
| STREAM | Iowa | Fair | 1966 | 7.9 m | 133 |
| NORTH RIVER | Iowa | Good | 2024 | 30.8 m | 132 |
| DRAINAGE | Iowa | Good | 2007 | 8.7 m | 132 |
| SKUNK RIVER TRIBUTARY | Iowa | Poor | 1968 | 9.4 m | 132 |
| MAPLE RIVER | Iowa | Fair | 1976 | 86.3 m | 131 |
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.