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 |
|---|---|---|---|---|---|
| FLEENER CREEK | Iowa | Poor | 1917 | 7.6 m | 181 |
| FOUR MILE CREEK | Iowa | Good | 2021 | 16.2 m | 180 |
| MIDDLE RACCON RIVER | Iowa | Good | 2000 | 43.6 m | 180 |
| RAPID CREEK | Iowa | Good | 2021 | 9.1 m | 180 |
| STREAM | Iowa | Fair | 1978 | 31.4 m | 180 |
| BLOOD RUN CREEK | Iowa | Poor | 1971 | 42.1 m | 180 |
| SMALL STREAM | Iowa | Good | 1985 | 6.4 m | 180 |
| HOCKET CREEK | Iowa | Good | 2004 | 35.4 m | 180 |
| SMALL STREAM | Iowa | Good | 2004 | 35.4 m | 180 |
| SM STREAM | Iowa | Fair | 1974 | 7.6 m | 180 |
| SPRING CREEK | Iowa | Good | 2015 | 9.1 m | 180 |
| MALONY CREEK | Iowa | Fair | 1985 | 7.6 m | 180 |
| WESTFIELD CREEK | Iowa | Good | 1988 | 10.4 m | 180 |
| W FK W NISHNABOTNA RIVER | Iowa | Fair | 1975 | 39.0 m | 180 |
| WHITE BREAST CREEK | Iowa | Fair | 1962 | 31.1 m | 180 |
| SOUTH WEST CREEK | Iowa | Fair | 1968 | 11.6 m | 180 |
| MUCHAKINOCK CREEK | Iowa | Poor | 1949 | 13.1 m | 180 |
| MILLER CREEK | Iowa | Good | 2021 | 39.9 m | 180 |
| PURGATORY CREEK | Iowa | Fair | 1969 | 30.5 m | 180 |
| STREAM | Iowa | Poor | 1985 | 25.0 m | 180 |
| MIDDLE RIVER | Iowa | Fair | 1971 | 77.4 m | 180 |
| WILLOW CREEK | Iowa | Fair | 1973 | 39.0 m | 180 |
| MIDDLE RIVER | Iowa | Fair | 1971 | 68.9 m | 180 |
| UNION SLOUGH DITCH | Iowa | Poor | 1964 | 13.4 m | 180 |
| STRATTON CREEK | Iowa | Fair | 1967 | 7.9 m | 180 |
| STRATTON | Iowa | Fair | 1967 | 7.6 m | 180 |
| STRATTON CREEK | Iowa | Good | 2012 | 7.6 m | 180 |
| DRAINAGE | Iowa | Poor | 1975 | 6.7 m | 180 |
| DRAINAGE | Iowa | Poor | 1930 | 8.5 m | 180 |
| MIDDLE RIVER | Iowa | Fair | 1981 | 54.6 m | 180 |
| DD NO. 12 | Iowa | Good | 1998 | 24.1 m | 180 |
| BEAR CREEK | Iowa | Poor | 1949 | 8.2 m | 180 |
| DD NO. 12 | Iowa | Good | 1990 | 28.0 m | 180 |
| DD NO. 12 | Iowa | Good | 1990 | 23.8 m | 180 |
| SMALL | Iowa | Fair | 1945 | 13.1 m | 180 |
| DRAINAGE DITCH | Iowa | Fair | 1931 | 6.7 m | 180 |
| SMALL DITCH | Iowa | Fair | 1908 | 7.6 m | 180 |
| KEMP CREEK | Iowa | Poor | 1961 | 31.4 m | 180 |
| WEST BUTTRICKS CREEK | Iowa | Fair | 1970 | 31.1 m | 180 |
| SO LIZARD CK - DD 22 | Iowa | Poor | 1969 | 17.7 m | 180 |
| GINGER CREEK | Iowa | Fair | 1928 | 9.4 m | 180 |
| MIDDLE RIVER | Iowa | Good | 1999 | 53.6 m | 180 |
| BLACK CAT CREEK | Iowa | Fair | 1972 | 27.5 m | 180 |
| KEMP CREEK | Iowa | Poor | 1988 | 43.3 m | 180 |
| JOHNNY CREEK | Iowa | Good | 2020 | 6.1 m | 180 |
| HARTS MILL CREEK | Iowa | Fair | 1978 | 30.5 m | 180 |
| CREEK | Iowa | Fair | 1954 | 7.6 m | 180 |
| ROCK RIVER | Iowa | Fair | 1980 | 83.2 m | 180 |
| BACON CREEK | Iowa | Fair | 1967 | 46.9 m | 180 |
| STREAM | Iowa | Fair | 2013 | 13.3 m | 180 |
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.