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 |
|---|---|---|---|---|---|
| BR OF CHARITON RIVER | Iowa | Good | 1998 | 11.6 m | 230 |
| SOUTH LIZARD CREEK | Iowa | Poor | 1975 | 39.0 m | 230 |
| WEST FORK DD | Iowa | Poor | 1961 | 63.4 m | 229 |
| SANTIAGO CREEK | Iowa | Good | 2022 | 23.2 m | 229 |
| SILVER CREEK | Iowa | Fair | 1975 | 62.5 m | 229 |
| DRAINAGE DITCH 110 | Iowa | Poor | 1963 | 9.8 m | 229 |
| WEST BUTTRICKS CREEK | Iowa | Fair | 1963 | 22.6 m | 229 |
| I-29 | Iowa | Poor | 1958 | 68.9 m | 229 |
| S RIVER | Iowa | Good | 2003 | 68.9 m | 229 |
| WALNUT CREEK | Iowa | Fair | 1969 | 68.9 m | 229 |
| HAITZ DD | Iowa | Poor | 1961 | 51.5 m | 229 |
| SMALL STREAM | Iowa | Good | 2009 | 6.4 m | 229 |
| I-80 | Iowa | Fair | 1958 | 64.0 m | 229 |
| I-80 | Iowa | Fair | 1959 | 66.8 m | 229 |
| PONY CREEK | Iowa | Fair | 1998 | 11.9 m | 229 |
| CREEK | Iowa | Good | 2011 | 9.1 m | 227 |
| SPRING CR | Iowa | Poor | 1967 | 23.5 m | 227 |
| CREEK | Iowa | Good | 2010 | 7.9 m | 227 |
| YELLOW SPRING CREEK | Iowa | Good | 2019 | 25.3 m | 227 |
| TIMBER CREEK | Iowa | Poor | 1977 | 32.0 m | 227 |
| DRAINAGE | Iowa | Poor | 1945 | 15.2 m | 226 |
| BLACKHAWK CREEK BRANCH | Iowa | Good | 1996 | 7.6 m | 226 |
| SHELL ROCK RIVER | Iowa | Poor | 1959 | 128.3 m | 226 |
| SMALL CREEK | Iowa | Fair | 2004 | 12.5 m | 226 |
| LITTLE CEDAR RIVER | Iowa | Poor | 1931 | 51.5 m | 226 |
| WAPSIPINICON RIVER | Iowa | Good | 1985 | 167.5 m | 226 |
| FIELD DRAW | Iowa | Fair | 1981 | 6.4 m | 226 |
| FISH CREEK | Iowa | Poor | 1965 | 11.9 m | 226 |
| SALT CREEK | Iowa | Good | 1998 | 83.5 m | 226 |
| WAPSIPINICON RIVER | Iowa | Good | 1976 | 84.1 m | 226 |
| SMALL CREEK | Iowa | Fair | 1979 | 38.1 m | 226 |
| WALNUT CREEK | Iowa | Fair | 1999 | 9.1 m | 226 |
| HEWITT CREEK | Iowa | Fair | 1983 | 11.0 m | 226 |
| WALNUT CREEK | Iowa | Poor | 1971 | 8.2 m | 226 |
| HEWITT CREEK | Iowa | Fair | 1983 | 11.0 m | 226 |
| BEAVER CREEK | Iowa | Fair | 1980 | 13.7 m | 226 |
| WEST FORK GRAND RIVER | Iowa | Fair | 1977 | 38.7 m | 226 |
| TURTLE CREEK | Iowa | Good | 2014 | 21.5 m | 226 |
| HORTON CREEK | Iowa | Good | 2021 | 39.9 m | 226 |
| TURKEY RIVER | Iowa | Good | 1982 | 87.8 m | 226 |
| DRY RUN CREEK | Iowa | Poor | 1977 | 39.3 m | 226 |
| TROUBLESOME CREEK | Iowa | Poor | 1964 | 7.3 m | 226 |
| SOUTH RIVER | Iowa | Good | 2008 | 69.8 m | 226 |
| MUD CREEK | Iowa | Fair | 1965 | 21.0 m | 225 |
| DRY RUN CREEK | Iowa | Poor | 1900 | 9.4 m | 224 |
| SKUNK RIVER OVERFLOW | Iowa | Fair | 1946 | 55.5 m | 224 |
| SKUNK RIVER | Iowa | Poor | 1954 | 106.7 m | 224 |
| OTTER CREEK | Iowa | Good | 2006 | 39.0 m | 223 |
| PRAIRIE CREEK | Iowa | Good | 2022 | 10.7 m | 223 |
| WEST NODAWAY RIVER | Iowa | Good | 2017 | 125.6 m | 223 |
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.