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 |
|---|---|---|---|---|---|
| FLOOD PLAIN OF WAPSI R | Iowa | Fair | 1985 | 48.8 m | 432 |
| WAPSIPINICON RIVER | Iowa | Fair | 1985 | 125.3 m | 432 |
| WHARAM CREEK | Iowa | Fair | 1983 | 10.7 m | 432 |
| WINNEBAGO RIVER | Iowa | Fair | 1984 | 68.6 m | 432 |
| LITTLE TURKEY RIVER | Iowa | Good | 1976 | 77.6 m | 432 |
| CREEK | Iowa | Fair | 1963 | 11.9 m | 432 |
| US 52 | Iowa | Good | 2018 | 74.7 m | 432 |
| BUFFALO CREEK | Iowa | Good | 2004 | 38.1 m | 432 |
| TRIB TO MILLER CREEK | Iowa | Fair | 1971 | 7.6 m | 432 |
| RAVEN CREEK | Iowa | Fair | 1981 | 39.0 m | 432 |
| BRANCH SALT CREEK | Iowa | Poor | 1970 | 39.0 m | 432 |
| COULEE CREEK | Iowa | Fair | 1925 | 8.2 m | 432 |
| CREEK | Iowa | Fair | 1926 | 6.7 m | 432 |
| MILL CREEK | Iowa | Fair | 1957 | 51.8 m | 432 |
| TRIB TO MILLER CREEK | Iowa | Good | 1989 | 7.6 m | 432 |
| MAQUOKETA RIVER | Iowa | Fair | 1964 | 173.7 m | 430 |
| ROCK CREEK | Iowa | Poor | 1985 | 31.4 m | 430 |
| LUX CREEK | Iowa | Fair | 1961 | 38.1 m | 430 |
| SPRING CREEK | Iowa | Poor | 1959 | 23.8 m | 430 |
| CREEK | Iowa | Fair | 1985 | 9.4 m | 430 |
| DES MOINES RIVER | Iowa | Fair | 1985 | 292.9 m | 430 |
| BLUEBIRD CREEK | Iowa | Good | 2023 | 10.7 m | 430 |
| S SKUNK RIVER | Iowa | Poor | 1967 | 106.7 m | 430 |
| CROOKED CREEK | Iowa | Good | 2000 | 58.5 m | 430 |
| W FORK CEDAR RIVER | Iowa | Good | 2015 | 40.5 m | 430 |
| BR W FORK CEDAR RIVER | Iowa | Good | 2000 | 11.6 m | 430 |
| BOONE RIVER | Iowa | Fair | 1973 | 118.9 m | 429 |
| POWELL CREEK | Iowa | Fair | 1972 | 9.4 m | 429 |
| DRAINAGE DITCH NO 96 | Iowa | Fair | 1976 | 23.8 m | 429 |
| WEST BRANCH IA RIVER | Iowa | Fair | 1976 | 46.3 m | 429 |
| CREEK | Iowa | Fair | 1959 | 9.4 m | 429 |
| ALDRICH CREEK | Iowa | Fair | 1969 | 7.6 m | 429 |
| ALDRICH CREEK | Iowa | Fair | 1987 | 8.5 m | 429 |
| SMALL CREEK | Iowa | Poor | 1900 | 6.4 m | 429 |
| DEER CREEK | Iowa | Good | 2003 | 35.4 m | 429 |
| STREAM | Iowa | Fair | 1979 | 7.0 m | 429 |
| EAST BR INDIAN CREEK | Iowa | Fair | 1962 | 17.4 m | 429 |
| LIZARD CK DD #54 | Iowa | Poor | 1964 | 17.4 m | 429 |
| WEST FORK LITTLE SIOUX | Iowa | Poor | 1955 | 65.2 m | 429 |
| STREAM | Iowa | Good | 2020 | 31.4 m | 429 |
| MAPLE RIVER | Iowa | Fair | 1985 | 98.8 m | 429 |
| NO NAME CREEK | Iowa | Good | 2017 | 20.6 m | 429 |
| RAINES BRANCH | Iowa | Fair | 1951 | 47.2 m | 428 |
| WEST CREEK | Iowa | Fair | 1971 | 38.1 m | 428 |
| FROG CREEK | Iowa | Fair | 1920 | 9.1 m | 428 |
| CREEK | Iowa | Good | 2003 | 7.6 m | 428 |
| WILLOW CREEK | Iowa | Fair | 2004 | 38.1 m | 428 |
| INDIAN CREEK | Iowa | Good | 1994 | 43.0 m | 428 |
| MIDDLE RACOON | Iowa | Fair | 1951 | 55.5 m | 428 |
| SILVER CREEK | Iowa | Fair | 1962 | 76.8 m | 428 |
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.