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 |
|---|---|---|---|---|---|
| KEG CREEK | Iowa | Fair | 1974 | 55.2 m | 577 |
| I-29 | Iowa | Fair | 1972 | 107.0 m | 577 |
| WILLOW CREEK | Iowa | Fair | 1997 | 14.6 m | 577 |
| CREEK | Iowa | Fair | 1980 | 22.9 m | 576 |
| MIDDLE RACOON RIVER | Iowa | Poor | 1951 | 102.7 m | 574 |
| OTTER CREEK | Iowa | Fair | 1950 | 56.1 m | 571 |
| RED OAK CREEK | Iowa | Fair | 1964 | 17.4 m | 571 |
| PRAIRIE CREEK | Iowa | Good | 2021 | 7.9 m | 570 |
| HINKLE CREEK | Iowa | Poor | 1962 | 6.4 m | 570 |
| TRIB TO WOLF CREEK | Iowa | Fair | 2003 | 12.2 m | 570 |
| DUCK CREEK | Iowa | Good | 2002 | 39.0 m | 570 |
| DD NO. 6 | Iowa | Fair | 1956 | 13.7 m | 570 |
| BRANCH VILLAGE CREEK | Iowa | Fair | 1925 | 10.1 m | 570 |
| LITTLE WAPSI RIVER | Iowa | Fair | 1970 | 54.6 m | 570 |
| STREAM | Iowa | Fair | 1981 | 10.1 m | 570 |
| DEEP CREEK | Iowa | Good | 2004 | 35.1 m | 570 |
| SMALL CREEK | Iowa | Fair | 1966 | 23.5 m | 570 |
| HONEY CREEK | Iowa | Fair | 1998 | 27.7 m | 570 |
| DD NO. 6 | Iowa | Good | 2005 | 11.3 m | 570 |
| DRAINAGE DITCH | Iowa | Fair | 2013 | 7.0 m | 570 |
| CREEK | Iowa | Fair | 1991 | 7.6 m | 570 |
| CREEK | Iowa | Fair | 1994 | 8.5 m | 570 |
| CANOE CREEK | Iowa | Good | 1959 | 21.0 m | 570 |
| CLEAR CREEK | Iowa | Fair | 1995 | 27.7 m | 570 |
| NORTH FORK WALNUT CREEK | Iowa | Fair | 1966 | 23.5 m | 570 |
| FARMERS CREEK | Iowa | Fair | 1979 | 35.4 m | 570 |
| IOWA RIVER | Iowa | Fair | 2014 | 353.3 m | 570 |
| SPRING CREEK | Iowa | Fair | 1957 | 37.2 m | 570 |
| IOWA 149 | Iowa | Good | 2020 | 57.0 m | 570 |
| IOWA RIVER | Iowa | Fair | 1978 | 75.0 m | 570 |
| CREEK | Iowa | Fair | 1970 | 22.9 m | 570 |
| HINE CREEK | Iowa | Good | 2006 | 23.8 m | 569 |
| LOTTS CREEK | Iowa | Good | 2001 | 39.0 m | 569 |
| CREEK | Iowa | Fair | 1967 | 12.2 m | 569 |
| WOLF CREEK | Iowa | Good | 2002 | 54.9 m | 569 |
| SMALL | Iowa | Good | 1976 | 10.7 m | 569 |
| WEST IOWA RIVER | Iowa | Poor | 1979 | 34.7 m | 569 |
| SM STREAM | Iowa | Poor | 1974 | 10.4 m | 569 |
| LITTLE MAPLE RIVER | Iowa | Poor | 1974 | 10.4 m | 569 |
| DRAINAGE | Iowa | Poor | 1976 | 31.4 m | 569 |
| SILVER CREEK BRANCH | Iowa | Fair | 1959 | 8.8 m | 568 |
| OLD SOLDIER DITCH | Iowa | Fair | 1984 | 7.3 m | 568 |
| CREEK | Iowa | Fair | 1954 | 7.3 m | 568 |
| MIDDLE PLATTE RIVER | Iowa | Good | 1993 | 9.1 m | 568 |
| WILLOW CREEK | Iowa | Good | 2016 | 24.6 m | 566 |
| DES MOINES ST | Iowa | Fair | 1882 | 8.2 m | 565 |
| RAILROAD CREEK | Iowa | Fair | 1941 | 12.8 m | 565 |
| LIZARD CREEK | Iowa | Fair | 1984 | 12.2 m | 562 |
| FRENCH CREEK | Iowa | Good | 2023 | 24.7 m | 562 |
| LITTLE BEAVER CREEK TRIB | Iowa | Good | 2018 | 16.2 m | 561 |
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.