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 |
|---|---|---|---|---|---|
| SMALL STREAM | Iowa | Good | 2005 | 28.0 m | 660 |
| BR UPPER IOWA RIVER | Iowa | Good | 2018 | 31.4 m | 660 |
| W. FORK CROOKED CREEK | Iowa | Good | 2003 | 82.6 m | 660 |
| SOAP CREEK | Iowa | Fair | 1933 | 14.0 m | 660 |
| LYTLES CREEK | Iowa | Good | 2016 | 49.9 m | 660 |
| MUSCATINE SLOUGH | Iowa | Fair | 1972 | 23.8 m | 660 |
| SMALL STREAM | Iowa | Poor | 1960 | 6.4 m | 660 |
| TOM CREEK | Iowa | Good | 2023 | 58.5 m | 660 |
| SPRING CREEK | Iowa | Fair | 1978 | 38.1 m | 660 |
| MCCARTY CREEK | Iowa | Good | 2020 | 21.6 m | 660 |
| TURKEY RIVER BRANCH | Iowa | Fair | 1962 | 13.1 m | 658 |
| SOUTH WEST CREEK | Iowa | Fair | 1994 | 11.3 m | 658 |
| TURKEY RIVER | Iowa | Fair | 1955 | 7.3 m | 658 |
| TURKEY RIVER BRANCH | Iowa | Good | 2000 | 7.3 m | 658 |
| IA 60 | Iowa | Good | 2006 | 85.3 m | 658 |
| SOUTH WEST CREEK | Iowa | Fair | 1971 | 31.1 m | 658 |
| LITTLE CEDAR CREEK | Iowa | Poor | 1968 | 31.4 m | 658 |
| BEAR CREEK | Iowa | Fair | 1991 | 47.9 m | 658 |
| STREAM | Iowa | Fair | 1972 | 7.9 m | 658 |
| MIDDLE SILVER CREEK | Iowa | Fair | 1990 | 6.4 m | 658 |
| BOYLAN CREEK | Iowa | Good | 1991 | 11.3 m | 658 |
| KEG CREEK | Iowa | Fair | 1990 | 72.5 m | 658 |
| KEG CREEK | Iowa | Fair | 1990 | 6.7 m | 658 |
| W BRANCH FLOYD RIVER | Iowa | Good | 1976 | 61.0 m | 658 |
| WESTERN HILLS CREEK | Iowa | Good | 1994 | 7.9 m | 651 |
| JORDAN CREEK | Iowa | Good | 1996 | 8.2 m | 651 |
| STREAM | Iowa | Good | 1990 | 7.6 m | 651 |
| SMALL STREAM | Iowa | Fair | 1950 | 7.0 m | 650 |
| SALT CREEK | Iowa | Poor | 1976 | 87.8 m | 650 |
| PRAIRIE CREEK | Iowa | Fair | 1991 | 39.0 m | 650 |
| BRUSHY FORK CREEK | Iowa | Poor | 1964 | 10.4 m | 650 |
| WEST FORK CEDAR RIVER | Iowa | Good | 2003 | 202.1 m | 650 |
| OLD WOMANS CREEK | Iowa | Fair | 2006 | 18.6 m | 650 |
| N BRANCH OLD MANS CREEK | Iowa | Fair | 1968 | 31.4 m | 650 |
| MUD CREEK | Iowa | Fair | 1965 | 32.6 m | 650 |
| PLAGUE MINE CREEK | Iowa | Poor | 1976 | 25.3 m | 650 |
| LITTLE CEDAR CREEK | Iowa | Poor | 1972 | 39.3 m | 650 |
| MICHAEL CREEK | Iowa | Fair | 1983 | 29.3 m | 650 |
| BIG INDIAN CREEK | Iowa | Good | 1989 | 76.8 m | 650 |
| US 20 | Iowa | Good | 1978 | 78.6 m | 650 |
| LOST CREEK | Iowa | Good | 2000 | 50.9 m | 650 |
| NORTH WALNUT CREEK | Iowa | Poor | 1990 | 35.4 m | 650 |
| RED OAK CREEK | Iowa | Fair | 1968 | 14.0 m | 650 |
| SUGAR CREEK | Iowa | Poor | 1976 | 39.0 m | 650 |
| MUSCATINE SLOUGH | Iowa | Fair | 1968 | 31.4 m | 650 |
| CREAMERY CREEK | Iowa | Fair | 1968 | 31.1 m | 650 |
| WALNUT CREEK | Iowa | Poor | 1990 | 41.1 m | 650 |
| I-35 | Iowa | Fair | 1958 | 61.3 m | 649 |
| PUTNAM CREEK | Iowa | Fair | 1977 | 11.6 m | 649 |
| RED OAK CREEK | Iowa | Good | 1980 | 26.8 m | 649 |
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.