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 |
|---|---|---|---|---|---|
| DAVIDS CREEK | Iowa | Good | 2021 | 40.5 m | 240 |
| LITTLE MUDDY CREEK | Iowa | Good | 1987 | 23.8 m | 240 |
| POSSUM CREEK | Iowa | Fair | 1980 | 12.2 m | 240 |
| MIDDLE RIVER | Iowa | Fair | 1959 | 40.5 m | 240 |
| SMALL UN-NAMED CREEK | Iowa | Good | 1998 | 6.4 m | 240 |
| I-35 | Iowa | Fair | 1964 | 66.1 m | 240 |
| LIZARD CREEK | Iowa | Good | 2015 | 42.7 m | 240 |
| BUCK CREEK | Iowa | Fair | 1975 | 7.9 m | 240 |
| N RACCOON RIVER | Iowa | Good | 2011 | 118.0 m | 240 |
| MUDDY CREEK | Iowa | Fair | 2003 | 20.0 m | 240 |
| D.D.#125 | Iowa | Fair | 1987 | 10.7 m | 240 |
| STREAM | Iowa | Fair | 1968 | 6.4 m | 240 |
| FLOYD RIVER | Iowa | Fair | 1962 | 53.3 m | 240 |
| DD NO 70 | Iowa | Poor | 1974 | 23.8 m | 240 |
| WHITE BREAST CREEK | Iowa | Fair | 1985 | 7.6 m | 240 |
| DRY RUN | Iowa | Fair | 1997 | 7.3 m | 240 |
| ELK CREEK | Iowa | Poor | 1958 | 54.3 m | 240 |
| ELK CREEK | Iowa | Good | 2004 | 9.4 m | 240 |
| MUSCATINE SLOUGH | Iowa | Fair | 1975 | 39.0 m | 239 |
| SMALL CREEK | Iowa | Fair | 1981 | 9.8 m | 239 |
| CAVITT CREEK | Iowa | Good | 2016 | 32.3 m | 238 |
| STREAM | Iowa | Poor | 1959 | 9.4 m | 236 |
| DRAINAGE | Iowa | Good | 1990 | 17.4 m | 236 |
| S. BEAR CREEK | Iowa | Good | 1975 | 31.4 m | 236 |
| PENNS BRANCH | Iowa | Good | 1995 | 27.7 m | 236 |
| DRAINAGE DITCH | Iowa | Poor | 1972 | 9.4 m | 236 |
| SMALL STREAM | Iowa | Fair | 2005 | 7.3 m | 236 |
| BLAIR CREEK | Iowa | Good | 1966 | 22.9 m | 236 |
| MAYNES CREEK | Iowa | Poor | 1971 | 58.5 m | 236 |
| MINERVA CREEK | Iowa | Good | 1998 | 9.8 m | 236 |
| TIPTON CREEK | Iowa | Fair | 1968 | 26.2 m | 236 |
| MILL CREEK | Iowa | Good | 2019 | 45.7 m | 236 |
| TEN MILE CREEK | Iowa | Fair | 1952 | 11.3 m | 236 |
| DRAINAGE DITCH 9 | Iowa | Good | 2010 | 7.6 m | 235 |
| CREEK | Iowa | Good | 2011 | 7.6 m | 235 |
| SMALL CREEK | Iowa | Good | 2020 | 15.2 m | 235 |
| STREAM | Iowa | Fair | 1962 | 9.4 m | 235 |
| INDIAN CREEK | Iowa | Poor | 1930 | 13.7 m | 235 |
| DRAINAGE | Iowa | Fair | 1983 | 8.8 m | 235 |
| CREEK | Iowa | Good | 2015 | 9.1 m | 234 |
| SMALL CREEK | Iowa | Good | 2011 | 8.8 m | 234 |
| STREAM | Iowa | Poor | 1966 | 13.7 m | 234 |
| SMALL STREAM | Iowa | Good | 1998 | 9.4 m | 234 |
| OLD CHANNEL CREEK | Iowa | Good | 2009 | 25.3 m | 232 |
| DRAINAGE | Iowa | Poor | 1900 | 11.0 m | 232 |
| INDIAN CREEK | Iowa | Fair | 1987 | 10.1 m | 232 |
| CREEK | Iowa | Fair | 1949 | 16.2 m | 232 |
| LITTLE BIG CREEK | Iowa | Poor | 1915 | 8.5 m | 232 |
| SMALL CREEK | Iowa | Fair | 1973 | 11.9 m | 232 |
| DRAINAGE | Iowa | Good | 2015 | 8.0 m | 232 |
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.