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 |
|---|---|---|---|---|---|
| WAPSIPINICON RIVER | Iowa | Fair | 1954 | 92.4 m | 344 |
| SMALL STREAM | Iowa | Fair | 1950 | 7.9 m | 344 |
| W BR PINE CREEK | Iowa | Fair | 1977 | 31.4 m | 344 |
| HOWARD CREEK | Iowa | Fair | 1983 | 31.4 m | 344 |
| SO BRANCH SALT CREEK | Iowa | Poor | 1996 | 12.5 m | 344 |
| LITTLE WAPSI RIVER | Iowa | Good | 1968 | 43.9 m | 344 |
| STOE CREEK | Iowa | Fair | 1971 | 31.4 m | 344 |
| SAYLOR CREEK | Iowa | Good | 2013 | 6.4 m | 344 |
| SALT CREEK | Iowa | Poor | 1965 | 23.8 m | 344 |
| LINDSEY CREEK | Iowa | Fair | 1991 | 35.4 m | 344 |
| HONEY CREEK | Iowa | Good | 2022 | 39.9 m | 344 |
| SMALL STREAM | Iowa | Fair | 1956 | 7.0 m | 342 |
| SO BR RALSTON CREEK | Iowa | Poor | 1957 | 6.7 m | 341 |
| BRANDY WINE CREEK | Iowa | Fair | 1966 | 6.4 m | 340 |
| BIG BEAR CREEK | Iowa | Good | 2002 | 39.0 m | 340 |
| SUGAR CREEK | Iowa | Poor | 1968 | 46.9 m | 340 |
| STEIN CREEK | Iowa | Good | 2015 | 11.9 m | 340 |
| DRAINAGE | Iowa | Good | 2006 | 28.3 m | 340 |
| CEDAR CREEK | Iowa | Poor | 1957 | 77.4 m | 340 |
| LYNN CREEK | Iowa | Poor | 1964 | 23.8 m | 340 |
| DRAINAGE DITCH | Iowa | Good | 1993 | 6.4 m | 340 |
| CATFISH CREEK | Iowa | Fair | 2002 | 41.5 m | 340 |
| LITTLE BEAR CREEK | Iowa | Poor | 1912 | 12.2 m | 340 |
| HONEY CREEK | Iowa | Fair | 1987 | 26.8 m | 340 |
| STREAM | Iowa | Fair | 1900 | 7.0 m | 340 |
| BEAVER CREEK | Iowa | Good | 2003 | 61.3 m | 340 |
| CREEK | Iowa | Good | 2019 | 9.1 m | 340 |
| SMALL STREAM | Iowa | Fair | 1974 | 6.7 m | 340 |
| IA 92 | Iowa | Fair | 1978 | 176.5 m | 340 |
| SMALL STREAM | Iowa | Good | 2013 | 25.3 m | 339 |
| DRY RUN CREEK | Iowa | Fair | 1970 | 6.7 m | 339 |
| TRULINER CREEK | Iowa | Fair | 1958 | 40.8 m | 339 |
| NORTH BUFFALO CREEK | Iowa | Good | 2009 | 36.8 m | 339 |
| DRAINAGE DITCH #90 | Iowa | Fair | 1993 | 24.1 m | 339 |
| DD | Iowa | Fair | 1925 | 10.4 m | 339 |
| NORTH BUFFALO CREEK | Iowa | Good | 2010 | 33.9 m | 339 |
| NORTH BUFFALO CREEK | Iowa | Good | 2009 | 33.9 m | 339 |
| LITTLE SIOUX RIVER | Iowa | Good | 2021 | 128.8 m | 339 |
| DD NO 69 | Iowa | Poor | 1974 | 31.4 m | 339 |
| DD NO 69 | Iowa | Fair | 1974 | 23.8 m | 339 |
| CALAMUS CREEK | Iowa | Good | 2015 | 33.7 m | 339 |
| BLACK CAT CREEK | Iowa | Good | 2020 | 39.9 m | 339 |
| CREEK | Iowa | Poor | 1964 | 21.3 m | 339 |
| SMALL CREEK | Iowa | Fair | 1962 | 6.4 m | 339 |
| CALAMUS CREEK | Iowa | Good | 2018 | 31.8 m | 339 |
| MINNIE BROOK | Iowa | Good | 1977 | 30.5 m | 339 |
| CALAMUS CREEK | Iowa | Good | 2018 | 28.5 m | 339 |
| CALAMUS CREEK | Iowa | Good | 2016 | 27.7 m | 339 |
| OTTER CREEK | Iowa | Good | 2017 | 62.2 m | 338 |
| W NODAWAY RIVER | Iowa | Fair | 1987 | 75.0 m | 338 |
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.