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 |
|---|---|---|---|---|---|
| VOLGA RIVER OVERFLOW | Iowa | Good | 1989 | 38.1 m | 790 |
| VOLGA RIVER | Iowa | Fair | 1989 | 88.4 m | 790 |
| COULEE CREEK | Iowa | Fair | 1989 | 43.6 m | 790 |
| BR VOLGA RIVER | Iowa | Good | 1989 | 9.8 m | 790 |
| SMALL STREAM | Iowa | Poor | 1952 | 19.5 m | 790 |
| SOAP CREEK | Iowa | Poor | 1970 | 47.2 m | 790 |
| N.BR.VOLGA RIVER | Iowa | Good | 1989 | 42.1 m | 790 |
| VOLGA RIVER | Iowa | Good | 1989 | 34.7 m | 790 |
| DEER CREEK | Iowa | Fair | 1994 | 8.2 m | 790 |
| DRAINAGE DITCH | Iowa | Fair | 1986 | 63.7 m | 790 |
| PLYMOUTH CREEK | Iowa | Good | 2020 | 28.3 m | 789 |
| PLYMOUTH CREEK | Iowa | Good | 1975 | 7.3 m | 789 |
| NELSON CREEK | Iowa | Poor | 1966 | 24.4 m | 789 |
| ARGO SLOUGH | Iowa | Fair | 1977 | 11.6 m | 789 |
| NO NAME CREEK | Iowa | Fair | 1966 | 7.6 m | 789 |
| NO NAME CREEK | Iowa | Good | 1966 | 7.0 m | 789 |
| BR W PLATTE RIVER | Iowa | Poor | 1957 | 17.4 m | 788 |
| BOYER RIVER | Iowa | Fair | 1959 | 76.8 m | 788 |
| I-29 | Iowa | Fair | 1959 | 72.5 m | 788 |
| JONES CREEK | Iowa | Poor | 1929 | 14.3 m | 788 |
| HARRIS GROVE CREEK | Iowa | Fair | 1963 | 13.7 m | 788 |
| DREYS DITCH | Iowa | Poor | 1920 | 9.1 m | 787 |
| BR N BLACKHAWK CREEK | Iowa | Fair | 1985 | 11.6 m | 786 |
| SPRING CREEK | Iowa | Good | 2017 | 7.8 m | 786 |
| UNNAMED CREEK | Iowa | Good | 1977 | 12.2 m | 786 |
| NORTH BEAR CREEK | Iowa | Fair | 1993 | 6.4 m | 786 |
| LITTLE WAPSIPINICON | Iowa | Poor | 1967 | 51.8 m | 786 |
| WAPSIPINICON | Iowa | Good | 2014 | 82.0 m | 786 |
| IOWA RIVER | Iowa | Poor | 1968 | 153.9 m | 786 |
| US 18 | Iowa | Good | 1998 | 68.6 m | 786 |
| SMALL STREAM | Iowa | Good | 1987 | 23.8 m | 786 |
| IOWA RIVER OVERFLOW | Iowa | Poor | 1968 | 9.8 m | 786 |
| IOWA RIVER OVERFLOW | Iowa | Poor | 1967 | 69.2 m | 786 |
| CREEK | Iowa | Good | 2022 | 21.4 m | 786 |
| BR N BLACKHAWK CREEK | Iowa | Good | 2004 | 74.1 m | 786 |
| TRIB BLACKHAWK CREEK | Iowa | Fair | 1984 | 25.3 m | 786 |
| CHARLEY WEST. REC. TRAIL | Iowa | Fair | 1967 | 34.1 m | 784 |
| DRAINAGE | Iowa | Fair | 1962 | 7.6 m | 783 |
| FLINT RIVER | Iowa | Good | 2000 | 88.7 m | 780 |
| SPRING CREEK | Iowa | Good | 1969 | 23.5 m | 780 |
| INDIAN CREEK | Iowa | Poor | 1986 | 17.4 m | 780 |
| SOUTH RIVER | Iowa | Fair | 1990 | 58.5 m | 780 |
| BRANCH 0F MUD CREEK | Iowa | Fair | 1985 | 7.0 m | 780 |
| JORDAN CREEK | Iowa | Good | 1979 | 28.3 m | 780 |
| SOLDIER RIVER | Iowa | Fair | 1951 | 74.7 m | 780 |
| STREAM | Iowa | Fair | 1932 | 11.3 m | 780 |
| BEAVER CREEK | Iowa | Fair | 1942 | 64.6 m | 780 |
| STREAM | Iowa | Fair | 1988 | 41.1 m | 780 |
| DRAINAGE | Iowa | Fair | 1960 | 31.4 m | 779 |
| WOLF CREEK | Iowa | Poor | 1950 | 55.5 m | 779 |
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.