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 |
|---|---|---|---|---|---|
| RACCOON RIVER | Iowa | Poor | 1976 | 35.1 m | 1,228 |
| BUCK CREEK | Iowa | Fair | 1979 | 49.4 m | 1,228 |
| EAST BR INDIAN CREEK | Iowa | Fair | 1976 | 38.1 m | 1,228 |
| DD #28 | Iowa | Fair | 1996 | 9.1 m | 1,228 |
| DRAINAGE DITCH #28 | Iowa | Fair | 1987 | 13.4 m | 1,228 |
| RUPPLE CREEK | Iowa | Fair | 1971 | 7.9 m | 1,228 |
| ODEBOLT CREEK | Iowa | Good | 1984 | 7.6 m | 1,228 |
| UNNAMED CREEK | Iowa | Fair | 2015 | 9.6 m | 1,225 |
| BACON CREEK | Iowa | Good | 1997 | 21.6 m | 1,225 |
| DRAINAGE | Iowa | Good | 2017 | 9.6 m | 1,225 |
| STREAM | Iowa | Fair | 1975 | 7.0 m | 1,223 |
| RAPID CR | Iowa | Fair | 1930 | 10.4 m | 1,220 |
| AMES CREEK | Iowa | Poor | 1971 | 23.8 m | 1,220 |
| BRANCH SUGAR CREEK | Iowa | Good | 1987 | 9.8 m | 1,220 |
| DRAINAGE | Iowa | Good | 2000 | 7.9 m | 1,220 |
| MAPLE RIVER | Iowa | Fair | 1972 | 71.9 m | 1,220 |
| DRAINAGE DITCH | Iowa | Fair | 1973 | 7.9 m | 1,220 |
| DRAINAGE DITCH | Iowa | Good | 1973 | 7.6 m | 1,220 |
| DRAINAGE DITCH | Iowa | Fair | 1973 | 9.8 m | 1,220 |
| DRAINAGE DITCH | Iowa | Good | 1973 | 9.8 m | 1,220 |
| MAPLE RIVER | Iowa | Good | 2022 | 92.2 m | 1,220 |
| BRANCH OF PRAIRIE CREEK | Iowa | Good | 1999 | 7.6 m | 1,220 |
| MUCKY CREEK | Iowa | Fair | 1973 | 29.9 m | 1,220 |
| UP RR | Iowa | Good | 1987 | 54.9 m | 1,220 |
| DRAINAGE DITCH | Iowa | Fair | 1973 | 13.7 m | 1,220 |
| DRAINAGE DITCH | Iowa | Fair | 1951 | 6.4 m | 1,220 |
| MCCARTY CREEK | Iowa | Good | 2022 | 25.3 m | 1,220 |
| MCCARTY CREEK | Iowa | Good | 2022 | 25.3 m | 1,220 |
| SILVVER CREEK | Iowa | Good | 2002 | 14.3 m | 1,218 |
| BEAR CREEK | Iowa | Fair | 1997 | 39.0 m | 1,218 |
| US 20 | Iowa | Good | 1980 | 81.7 m | 1,218 |
| WEST BR INDIAN CREEK | Iowa | Good | 2005 | 6.7 m | 1,217 |
| CREEK | Iowa | Fair | 2003 | 11.6 m | 1,216 |
| SPRING CREEK | Iowa | Fair | 1968 | 61.3 m | 1,215 |
| ANSON CREEK | Iowa | Fair | 1975 | 23.8 m | 1,213 |
| LITTLE WALNUT CREEK | Iowa | Good | 2007 | 37.5 m | 1,211 |
| BIG CEDAR CREEK | Iowa | Fair | 1968 | 31.4 m | 1,210 |
| PECHMAN CREEK | Iowa | Fair | 1976 | 31.4 m | 1,210 |
| BUCK CREEK | Iowa | Fair | 1964 | 31.4 m | 1,210 |
| FLINT RIVER | Iowa | Poor | 1960 | 46.3 m | 1,210 |
| OVERFLOW NISHNABOTNA | Iowa | Fair | 1973 | 43.3 m | 1,210 |
| EAST NISHNABOTNA RIVER | Iowa | Fair | 1960 | 98.8 m | 1,210 |
| SKINAWAY CREEK | Iowa | Good | 1987 | 9.4 m | 1,210 |
| COE CREEK | Iowa | Good | 1974 | 10.4 m | 1,210 |
| BEAR CREEK | Iowa | Good | 2023 | 55.2 m | 1,210 |
| OVER UP RR | Iowa | Poor | 1940 | 32.3 m | 1,210 |
| US 30 | Iowa | Good | 2019 | 71.6 m | 1,208 |
| SMALL NATURAL STREAM | Iowa | Poor | 1959 | 46.9 m | 1,207 |
| TRIB TO CEDAR RIVER | Iowa | Good | 1988 | 6.7 m | 1,206 |
| CREEK | Iowa | Good | 2013 | 6.7 m | 1,205 |
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.