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 | Poor | 1932 | 9.1 m | 620 |
| SKUNK RIVER OVERFLOW | Iowa | Good | 2004 | 39.0 m | 620 |
| SKUNK RIVER | Iowa | Good | 2004 | 189.6 m | 620 |
| DRAINAGE DITCH | Iowa | Fair | 1978 | 7.0 m | 620 |
| MUD CREEK | Iowa | Good | 2002 | 50.9 m | 620 |
| N BR OLD MANS CREEK | Iowa | Good | 2023 | 45.7 m | 620 |
| SOLDIER RIVER | Iowa | Fair | 1952 | 74.1 m | 620 |
| CEDAR RIVER | Iowa | Poor | 1948 | 349.0 m | 620 |
| LINDNER CREEK | Iowa | Poor | 1972 | 10.8 m | 620 |
| WILLOW RIVER | Iowa | Fair | 1959 | 56.1 m | 620 |
| NORWAY CREEK | Iowa | Fair | 1959 | 52.1 m | 620 |
| DM RIVER | Iowa | Good | 2010 | 347.2 m | 620 |
| I-80 | Iowa | Fair | 1960 | 66.4 m | 620 |
| MUCHAKINOCK CREEK | Iowa | Good | 2001 | 43.6 m | 620 |
| KIDDER CREEK | Iowa | Fair | 1985 | 39.0 m | 619 |
| IOWA RIVER OVERFLOW | Iowa | Fair | 1972 | 31.1 m | 619 |
| OVER UP RR | Iowa | Good | 1993 | 66.1 m | 619 |
| IOWA RIVER OVERFLOW | Iowa | Fair | 1972 | 20.7 m | 619 |
| IOWA RIVER | Iowa | Poor | 1988 | 184.1 m | 619 |
| BRANCH BEAVER CREEK | Iowa | Poor | 1968 | 9.8 m | 619 |
| OTTER CREEK | Iowa | Good | 1997 | 54.6 m | 619 |
| IMRL RR | Iowa | Good | 2000 | 45.7 m | 619 |
| DRAINAGE DITCH | Iowa | Fair | 1956 | 7.9 m | 619 |
| WEST FORK CEDAR RIVER | Iowa | Good | 2003 | 95.1 m | 619 |
| OVERFLOW TO W FORK CED R | Iowa | Fair | 1985 | 39.0 m | 619 |
| WILLOW CREEK | Iowa | Fair | 1964 | 23.8 m | 619 |
| PINE CREEK | Iowa | Fair | 1973 | 22.9 m | 619 |
| WOLF CREEK | Iowa | Fair | 1973 | 26.8 m | 619 |
| SMALL STREAM | Iowa | Fair | 1985 | 9.2 m | 619 |
| OTTER CREEK | Iowa | Fair | 1962 | 61.0 m | 619 |
| STREAM | Iowa | Good | 1995 | 27.7 m | 619 |
| OTTER CREEK | Iowa | Fair | 1962 | 61.9 m | 619 |
| OTTER CREEK 2ND CHANNEL | Iowa | Fair | 1962 | 38.1 m | 619 |
| BIG BEAR CREEK | Iowa | Fair | 1978 | 7.6 m | 619 |
| SCHNEIDERS CREEK | Iowa | Fair | 1973 | 22.9 m | 619 |
| STREAM | Iowa | Fair | 1920 | 9.4 m | 619 |
| MAPLE RIVER | Iowa | Good | 2002 | 58.5 m | 619 |
| IA 60 | Iowa | Good | 2005 | 83.8 m | 619 |
| DRAINAGE | Iowa | Fair | 1935 | 6.4 m | 619 |
| LITTLE MAQUOKETA RIVER | Iowa | Good | 2021 | 46.6 m | 619 |
| WANATEE CREEK | Iowa | Fair | 1999 | 21.9 m | 618 |
| INDIAN CREEK | Iowa | Good | 1976 | 10.1 m | 617 |
| DRAINAGE | Iowa | Fair | 1989 | 13.7 m | 617 |
| SM STREAM | Iowa | Fair | 1989 | 23.8 m | 616 |
| DRAINAGE | Iowa | Poor | 1960 | 18.9 m | 616 |
| TURKEY RUN | Iowa | Fair | 1994 | 9.1 m | 610 |
| CEDAR FORK | Iowa | Fair | 1964 | 46.9 m | 610 |
| TURKEY RUN | Iowa | Fair | 1983 | 7.6 m | 610 |
| US 30 | Iowa | Good | 2017 | 77.8 m | 610 |
| S COAL CREEK | Iowa | Fair | 1994 | 31.4 m | 610 |
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.