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 |
|---|---|---|---|---|---|
| DD #57 | Iowa | Fair | 1975 | 9.8 m | 210 |
| SMALL STREAM | Iowa | Fair | 1974 | 7.3 m | 210 |
| BLACK CAT CREEK | Iowa | Fair | 1979 | 39.1 m | 210 |
| NICHOLSON CREEK | Iowa | Fair | 1975 | 30.5 m | 210 |
| WATERMAN CREEK | Iowa | Fair | 1961 | 54.3 m | 210 |
| SILVER CREEK | Iowa | Good | 2004 | 6.4 m | 210 |
| SMALL | Iowa | Fair | 1959 | 7.6 m | 210 |
| ASHTON CREEK | Iowa | Good | 2013 | 25.3 m | 210 |
| ALDRICH CREEK | Iowa | Fair | 1970 | 8.5 m | 210 |
| PARADISE CREEK | Iowa | Fair | 1972 | 47.2 m | 210 |
| LITTLE FOX CREEK | Iowa | Fair | 1964 | 6.4 m | 210 |
| JOHNSON CREEK | Iowa | Good | 2015 | 7.6 m | 210 |
| ELLIOT CREEK | Iowa | Good | 2019 | 37.5 m | 210 |
| STREAM | Iowa | Good | 1960 | 7.0 m | 210 |
| LITTLE MUCHAKINOCK CREEK | Iowa | Good | 1988 | 39.3 m | 210 |
| TARKIO RIVER | Iowa | Fair | 1968 | 69.8 m | 210 |
| W FORK LITTLE SIOUX RIV | Iowa | Good | 1974 | 6.4 m | 210 |
| JONES CREEK | Iowa | Fair | 1986 | 8.2 m | 210 |
| WHISKEY CREEK | Iowa | Good | 2023 | 60.0 m | 210 |
| ELK RUN CREEK | Iowa | Poor | 1900 | 30.8 m | 209 |
| MELONE CREEK | Iowa | Fair | 1985 | 31.4 m | 208 |
| UPPER IOWA RIVER | Iowa | Poor | 1985 | 18.3 m | 207 |
| STREAM | Iowa | Good | 2016 | 15.5 m | 207 |
| BEAR CREEK | Iowa | Good | 2007 | 39.0 m | 207 |
| CREEK | Iowa | Good | 2023 | 30.5 m | 207 |
| PLEASANT RUN CR. | Iowa | Fair | 1985 | 27.4 m | 207 |
| NO FORK MAQUOKETA RIVER | Iowa | Good | 2019 | 46.6 m | 207 |
| SHELL ROCK RIV OVERFLOW | Iowa | Poor | 1992 | 17.4 m | 207 |
| SHELL ROCK RIV OVERFLOW | Iowa | Fair | 1992 | 22.6 m | 207 |
| DRAINAGE DITCH | Iowa | Good | 2012 | 14.0 m | 207 |
| CHIPPEWA CREEK | Iowa | Good | 2022 | 13.1 m | 207 |
| CATFISH CREEK | Iowa | Good | 2015 | 11.6 m | 206 |
| IOWA RIVER | Iowa | Good | 1954 | 159.4 m | 206 |
| BEAR CREEK | Iowa | Good | 1980 | 12.2 m | 206 |
| STREAM | Iowa | Good | 1999 | 15.2 m | 206 |
| PRATT CREEK | Iowa | Good | 2021 | 21.6 m | 206 |
| KRUMM CREEK | Iowa | Fair | 1981 | 30.5 m | 206 |
| PRAIRIE CREEK | Iowa | Good | 2002 | 62.2 m | 206 |
| COLD WATER CREEK | Iowa | Good | 2011 | 27.7 m | 206 |
| PRAIRIE CREEK | Iowa | Fair | 1986 | 39.0 m | 206 |
| UPPER IOWA RIVER | Iowa | Good | 1999 | 83.2 m | 206 |
| BEEMIS CREEK | Iowa | Good | 2010 | 33.8 m | 206 |
| CREEK | Iowa | Good | 2012 | 7.6 m | 206 |
| CREEK | Iowa | Poor | 1998 | 13.7 m | 206 |
| SPRING BRANCH | Iowa | Good | 1992 | 27.7 m | 206 |
| BEAVER CREEK | Iowa | Poor | 1965 | 38.7 m | 206 |
| STREAM | Iowa | Fair | 1988 | 6.1 m | 206 |
| PRAIRIE CREEK | Iowa | Fair | 1967 | 75.0 m | 205 |
| WANATEE CREEK | Iowa | Good | 1998 | 6.4 m | 201 |
| MCLAREN CREEK | Iowa | Fair | 1968 | 9.8 m | 201 |
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.