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 |
|---|---|---|---|---|---|
| LONE TREE CREEK | Iowa | Good | 1971 | 94.8 m | 2,830 |
| TURKEY CREEK | Iowa | Good | 1971 | 62.5 m | 2,830 |
| DRAINAGE DITCH | Iowa | Fair | 1968 | 7.6 m | 2,830 |
| QUARTER SECTION RUN | Iowa | Good | 2010 | 15.9 m | 2,830 |
| WAPSINONOC CREEK | Iowa | Good | 1988 | 70.1 m | 2,830 |
| RACCOON AND RR | Iowa | Poor | 1936 | 288.6 m | 2,825 |
| MIDDLE SILVER CREEK | Iowa | Good | 1989 | 40.5 m | 2,820 |
| W NISHNABOTNA RIVER | Iowa | Fair | 1985 | 90.8 m | 2,820 |
| MIDDLE SILVER CREEK | Iowa | Fair | 1998 | 7.3 m | 2,820 |
| STREAM | Iowa | Fair | 1997 | 8.8 m | 2,820 |
| SILVER CREEK | Iowa | Fair | 1961 | 74.7 m | 2,820 |
| GODDARD CREEK | Iowa | Good | 2006 | 39.6 m | 2,810 |
| BUCK CREEK | Iowa | Fair | 1979 | 56.1 m | 2,810 |
| MAYNES CREEK | Iowa | Good | 1981 | 52.7 m | 2,810 |
| INDIAN CREEK | Iowa | Fair | 1972 | 10.7 m | 2,806 |
| E BR W NISHNABOTNA RVR | Iowa | Good | 2024 | 113.5 m | 2,800 |
| WAPSIPINICON RIVER | Iowa | Good | 2008 | 118.7 m | 2,800 |
| DRAINAGE DITCH | Iowa | Good | 1984 | 29.9 m | 2,800 |
| STREAM | Iowa | Fair | 1966 | 7.0 m | 2,800 |
| MIDDLE NODAWAY RIVER | Iowa | Fair | 1966 | 58.2 m | 2,800 |
| TURKEY RIVER | Iowa | Good | 1982 | 85.6 m | 2,800 |
| 170TH ST | Iowa | Good | 2017 | 58.5 m | 2,800 |
| I 80/US 218/IA 27 | Iowa | Good | 2020 | 844.6 m | 2,800 |
| TURKEY RIVER OVERFLOW | Iowa | Good | 1982 | 58.2 m | 2,800 |
| US 218 | Iowa | Fair | 2002 | 69.5 m | 2,800 |
| DRY CREEK | Iowa | Fair | 1955 | 38.7 m | 2,800 |
| BOONE RIVER | Iowa | Good | 1984 | 79.6 m | 2,800 |
| 170TH ST | Iowa | Good | 2017 | 58.5 m | 2,800 |
| NORTH SKUNK RIVER | Iowa | Good | 2022 | 145.2 m | 2,800 |
| WAPSIPINICON RIVER | Iowa | Good | 2008 | 118.4 m | 2,800 |
| PRARIE CREEK | Iowa | Good | 2003 | 53.0 m | 2,800 |
| DRAINAGE DITCH | Iowa | Good | 1955 | 8.2 m | 2,790 |
| YANKEE RUN | Iowa | Fair | 1955 | 15.2 m | 2,790 |
| YANKEE RUN | Iowa | Fair | 1955 | 34.4 m | 2,790 |
| IOWA RIVER | Iowa | Good | 2001 | 172.8 m | 2,790 |
| DRAINAGE DITCH | Iowa | Good | 1979 | 6.4 m | 2,790 |
| MIDDLE TARKIO RIVER | Iowa | Good | 1992 | 64.3 m | 2,790 |
| EAST TARKIO RIVER | Iowa | Good | 1991 | 57.3 m | 2,790 |
| MAQUOKETA RIVER | Iowa | Fair | 1969 | 107.6 m | 2,787 |
| MILL CREEK | Iowa | Good | 1974 | 11.9 m | 2,780 |
| LITTLE TURKEY RIVER | Iowa | Fair | 1974 | 62.5 m | 2,780 |
| SALT CREEK | Iowa | Fair | 1976 | 6.4 m | 2,780 |
| STREAM | Iowa | Good | 1970 | 12.2 m | 2,780 |
| SINK CREEK | Iowa | Fair | 1988 | 7.9 m | 2,777 |
| STREAM | Iowa | Fair | 1988 | 8.4 m | 2,770 |
| LOTTS CREEK | Iowa | Good | 1993 | 32.9 m | 2,770 |
| TRIB TO INDIAN CREEK | Iowa | Fair | 1996 | 8.5 m | 2,769 |
| HOG RUN | Iowa | Good | 1999 | 22.9 m | 2,760 |
| DRAINAGE DITCH | Iowa | Good | 1979 | 8.8 m | 2,760 |
| DRAINAGE DITCH | Iowa | Good | 1979 | 7.0 m | 2,760 |
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.