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 |
|---|---|---|---|---|---|
| IAIS RR | Iowa | Good | 2013 | 60.1 m | 3,960 |
| WEST NISHNABOTNA RIVER | Iowa | Fair | 1978 | 89.9 m | 3,960 |
| 135TH PLACE | Iowa | Good | 1978 | 39.6 m | 3,950 |
| US 18 | Iowa | Good | 1999 | 63.4 m | 3,950 |
| 135TH PLACE | Iowa | Good | 1978 | 39.6 m | 3,950 |
| BEAVER CREEK | Iowa | Good | 2008 | 45.7 m | 3,950 |
| MIDDLE BEAVER CREEK | Iowa | Good | 2016 | 10.2 m | 3,950 |
| WILLOW CREEK | Iowa | Fair | 1923 | 21.6 m | 3,940 |
| LINGLE CREEK | Iowa | Fair | 1955 | 40.2 m | 3,930 |
| OTTER CREEK | Iowa | Fair | 1986 | 13.2 m | 3,930 |
| IA 141 | Iowa | Good | 2003 | 130.8 m | 3,930 |
| W.BR.TURKEY RIVER | Iowa | Good | 1993 | 11.6 m | 3,930 |
| ROCK RIVER | Iowa | Fair | 1974 | 107.6 m | 3,920 |
| SOUTH TIMBER CREEK | Iowa | Good | 1985 | 45.7 m | 3,920 |
| MORNINGSIDE CREEK | Iowa | Fair | 1984 | 9.1 m | 3,918 |
| MIDDLE RACCOON RIVER | Iowa | Good | 1986 | 44.5 m | 3,914 |
| OVER UP RR | Iowa | Good | 1993 | 70.4 m | 3,910 |
| NORTH RACCOON RIVER | Iowa | Fair | 1973 | 222.5 m | 3,910 |
| LAND | Iowa | Good | 2020 | 173.6 m | 3,910 |
| FOUR MILE CREEK | Iowa | Poor | 1978 | 75.0 m | 3,908 |
| STREAM | Iowa | Fair | 1959 | 11.6 m | 3,900 |
| STREAM | Iowa | Fair | 1962 | 8.5 m | 3,900 |
| MINNOW CREEK | Iowa | Good | 1976 | 11.6 m | 3,900 |
| OVER UP RR | Iowa | Good | 1996 | 53.3 m | 3,900 |
| BNSF RR | Iowa | Good | 1968 | 50.9 m | 3,900 |
| OVER UP RR | Iowa | Good | 1997 | 53.3 m | 3,900 |
| US 18 | Iowa | Good | 1999 | 63.4 m | 3,900 |
| US 30 | Iowa | Good | 2008 | 74.6 m | 3,900 |
| CHURCH CREEK | Iowa | Good | 2007 | 37.5 m | 3,900 |
| IA 16 | Iowa | Good | 2006 | 67.4 m | 3,900 |
| MOSQUITO CREEK | Iowa | Fair | 1968 | 111.6 m | 3,900 |
| CHURCH CREEK | Iowa | Fair | 2007 | 37.5 m | 3,900 |
| IA 16 | Iowa | Fair | 2006 | 67.4 m | 3,900 |
| BIG CEDAR CREEK | Iowa | Good | 2006 | 63.4 m | 3,900 |
| BNSF RR | Iowa | Good | 1968 | 50.9 m | 3,900 |
| MOSQUITO CREEK | Iowa | Fair | 1968 | 111.6 m | 3,900 |
| BIG CEDAR CREEK | Iowa | Fair | 2016 | 66.2 m | 3,900 |
| WAPSIPINICON RIVER | Iowa | Good | 1994 | 99.4 m | 3,896 |
| STREAM | Iowa | Fair | 1984 | 6.7 m | 3,890 |
| HARTE CREEK | Iowa | Fair | 1984 | 22.9 m | 3,890 |
| BRANCH OTTER CREEK | Iowa | Fair | 1984 | 6.4 m | 3,890 |
| BRANCH OTTER CREEK | Iowa | Good | 1984 | 10.1 m | 3,890 |
| OTTER CREEK | Iowa | Good | 1991 | 6.4 m | 3,890 |
| WINNEBAGO RIVER | Iowa | Fair | 1970 | 66.4 m | 3,886 |
| DRY RUN CREEK | Iowa | Fair | 1945 | 74.4 m | 3,880 |
| MAPLE RIVER | Iowa | Fair | 1989 | 101.8 m | 3,880 |
| ENGLISH RIVER | Iowa | Good | 1978 | 63.7 m | 3,870 |
| DRAINAGE DITCH | Iowa | Good | 1978 | 6.4 m | 3,870 |
| BNSF RR | Iowa | Good | 1980 | 79.6 m | 3,870 |
| JORDAN CREEK | Iowa | Good | 2015 | 7.8 m | 3,865 |
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.