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 |
|---|---|---|---|---|---|
| PRAIRIE CREEK | Iowa | Good | 1991 | 11.0 m | 1,250 |
| DRAINAGE DITCH | Iowa | Fair | 1957 | 7.6 m | 1,250 |
| DRAINAGE DITCH | Iowa | Fair | 1957 | 7.6 m | 1,250 |
| DRAINAGE DITCH | Iowa | Fair | 1974 | 28.3 m | 1,250 |
| BRANCH PLATTE RIVER | Iowa | Fair | 2003 | 58.2 m | 1,250 |
| E BR WAPSIPINICONRIVER | Iowa | Good | 1976 | 67.4 m | 1,250 |
| PLUMB CREEK | Iowa | Fair | 1976 | 40.5 m | 1,250 |
| BRANCH MIDDLE AVERY CRK | Iowa | Good | 2008 | 46.6 m | 1,250 |
| ST MARYS DITCH | Iowa | Good | 1995 | 6.7 m | 1,247 |
| RAINES BRANCH | Iowa | Fair | 1947 | 30.5 m | 1,246 |
| WALNUT CREEK | Iowa | Fair | 1969 | 7.9 m | 1,246 |
| I-29 | Iowa | Fair | 1977 | 79.6 m | 1,245 |
| DRY RUN CREEK | Iowa | Fair | 1958 | 9.8 m | 1,244 |
| CREEK | Iowa | Good | 1970 | 7.6 m | 1,241 |
| BUCK CREEK | Iowa | Good | 1967 | 53.0 m | 1,240 |
| WAPSIE RIVER OVERFLOW | Iowa | Fair | 1967 | 23.5 m | 1,240 |
| WAPSIPINICON RIVER | Iowa | Fair | 1989 | 118.6 m | 1,240 |
| STREAM | Iowa | Fair | 1941 | 7.0 m | 1,240 |
| TURKEY CREEK | Iowa | Fair | 1987 | 34.4 m | 1,240 |
| CALEB CREEK | Iowa | Good | 2023 | 60.0 m | 1,240 |
| STREAM | Iowa | Good | 2016 | 7.9 m | 1,240 |
| STREAM | Iowa | Good | 1995 | 7.0 m | 1,240 |
| BUFFALO CREEK | Iowa | Good | 1995 | 69.8 m | 1,237 |
| OTTER CREEK | Iowa | Good | 1984 | 35.4 m | 1,237 |
| DRAINAGE | Iowa | Good | 1999 | 8.8 m | 1,236 |
| SMALL | Iowa | Good | 2006 | 9.8 m | 1,236 |
| CREEK | Iowa | Good | 1999 | 26.8 m | 1,236 |
| PLYMOUTH CR | Iowa | Fair | 1974 | 38.1 m | 1,236 |
| BRANCH HUNTER CREEK | Iowa | Good | 1994 | 7.9 m | 1,230 |
| STREAM | Iowa | Fair | 1951 | 12.2 m | 1,230 |
| REYNOLDS CREEK | Iowa | Fair | 1952 | 37.2 m | 1,230 |
| COON CREEK | Iowa | Fair | 1986 | 10.4 m | 1,230 |
| SMALL STREAM | Iowa | Good | 2000 | 34.1 m | 1,230 |
| DRAINAGE DITCH | Iowa | Good | 1951 | 13.1 m | 1,230 |
| SMALL STREAM | Iowa | Fair | 1983 | 10.1 m | 1,230 |
| CARRS CREEK | Iowa | Fair | 1974 | 8.2 m | 1,230 |
| DRAINAGE DITCH | Iowa | Fair | 1952 | 8.8 m | 1,230 |
| COOK CREEK | Iowa | Fair | 1957 | 6.4 m | 1,230 |
| WILLOW CREEK | Iowa | Fair | 1991 | 82.6 m | 1,230 |
| PRARIE CREEK DD | Iowa | Good | 2000 | 25.3 m | 1,230 |
| SMALL | Iowa | Good | 1998 | 6.4 m | 1,230 |
| ENGLISH RIVER | Iowa | Good | 2006 | 203.3 m | 1,230 |
| SMALL NATURAL STREAM | Iowa | Good | 2015 | 7.6 m | 1,230 |
| N BRANCH HONEY CREEK | Iowa | Fair | 1958 | 11.9 m | 1,230 |
| HONEY CREEK | Iowa | Fair | 1958 | 8.8 m | 1,230 |
| SOUTH CLANTON CREEK | Iowa | Good | 1974 | 11.6 m | 1,230 |
| PRAIRIE CREEK | Iowa | Good | 2022 | 54.7 m | 1,230 |
| US 20 | Iowa | Good | 1968 | 66.8 m | 1,230 |
| STREAM | Iowa | Fair | 1981 | 7.3 m | 1,230 |
| ELWOOD CREEK | Iowa | Fair | 1952 | 11.3 m | 1,230 |
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.