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 |
|---|---|---|---|---|---|
| CRABAPPLE CREEK | Iowa | Poor | 1958 | 31.4 m | 199 |
| BUCK CREEK | Iowa | Fair | 1975 | 7.9 m | 199 |
| JORDAN CREEK | Iowa | Fair | 2000 | 54.6 m | 199 |
| MOSQUITO CREEK | Iowa | Fair | 1978 | 10.1 m | 199 |
| TARKIO RIVER | Iowa | Fair | 1975 | 98.8 m | 199 |
| LITTLE BEAVER CREEK | Iowa | Poor | 1926 | 16.5 m | 199 |
| EAST PLATTE RIVER | Iowa | Poor | 1963 | 31.1 m | 199 |
| PIERSON CREEK | Iowa | Good | 2023 | 39.9 m | 199 |
| DRAINAGE | Iowa | Good | 2020 | 8.8 m | 199 |
| SEELEY CREEK | Iowa | Poor | 1968 | 39.0 m | 199 |
| INDIAN CREEK | Iowa | Fair | 1980 | 7.6 m | 199 |
| BACON CREEK | Iowa | Poor | 1900 | 13.4 m | 199 |
| TRIBUTARY TO TROUBLESOME | Iowa | Fair | 1951 | 8.2 m | 199 |
| SMALL STREAM | Iowa | Fair | 1965 | 8.2 m | 199 |
| SIMON RUN | Iowa | Good | 1976 | 29.3 m | 199 |
| SIMON RUN | Iowa | Good | 1976 | 38.1 m | 199 |
| RAT CREEK | Iowa | Poor | 1966 | 37.8 m | 199 |
| DES MOINES RIVER | Iowa | Good | 2002 | 199.6 m | 199 |
| OTTER CREEK | Iowa | Fair | 1975 | 43.3 m | 199 |
| BOYER RIVER | Iowa | Fair | 1984 | 68.9 m | 199 |
| THREE MILE CREEK | Iowa | Good | 2002 | 7.6 m | 199 |
| ROCK CREEK | Iowa | Poor | 1900 | 6.1 m | 199 |
| WILLOW CREEK | Iowa | Good | 2015 | 28.3 m | 199 |
| SOUTH RACOON | Iowa | Fair | 1965 | 43.6 m | 199 |
| WILLOW CREEK | Iowa | Poor | 1924 | 7.9 m | 199 |
| OVERFLOW | Iowa | Poor | 1968 | 30.5 m | 199 |
| MCELHANEY CREEK | Iowa | Good | 1987 | 39.0 m | 199 |
| US 20 | Iowa | Good | 1980 | 81.4 m | 196 |
| ROBERT CREEK | Iowa | Fair | 1946 | 64.0 m | 196 |
| WOLF CREEK BRANCH | Iowa | Poor | 1914 | 8.2 m | 196 |
| BUFFALO CREEK | Iowa | Good | 2003 | 68.9 m | 196 |
| BR UPPER IOWA RIVER | Iowa | Fair | 1952 | 10.4 m | 196 |
| DRAINAGE | Iowa | Good | 1993 | 14.9 m | 196 |
| SMALL CREEK | Iowa | Fair | 1971 | 7.3 m | 196 |
| CREEK | Iowa | Poor | 1929 | 12.5 m | 196 |
| BRANCH WOLF CREEK | Iowa | Poor | 1970 | 23.5 m | 196 |
| BRANCH TWELVE MILE CREEK | Iowa | Poor | 1967 | 31.1 m | 196 |
| VILLAGE CREEK | Iowa | Good | 2015 | 46.9 m | 196 |
| STREAM | Iowa | Good | 2006 | 7.9 m | 196 |
| US 218 | Iowa | Good | 1997 | 68.6 m | 196 |
| TWELVE MILE CREEK | Iowa | Fair | 1981 | 25.3 m | 196 |
| TRIB TO BLACK HAWK CREEK | Iowa | Good | 1982 | 7.3 m | 196 |
| LITTLE CEDAR | Iowa | Poor | 1965 | 78.6 m | 196 |
| BEAR CR | Iowa | Fair | 1948 | 46.3 m | 196 |
| US 20 | Iowa | Good | 2021 | 68.4 m | 196 |
| SHELL ROCK RIVER | Iowa | Good | 2003 | 53.6 m | 196 |
| TRIB TO SPRING CREEK | Iowa | Good | 1985 | 30.5 m | 196 |
| BLACKHAWK CREEK | Iowa | Good | 1976 | 18.9 m | 196 |
| DRAINAGE | Iowa | Poor | 1954 | 19.8 m | 195 |
| KING CREEK | Iowa | Fair | 1968 | 12.8 m | 195 |
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.