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 |
|---|---|---|---|---|---|
| RAMP F OVER I-380 | Iowa | Good | 1975 | 113.4 m | 7,600 |
| GOOSE CREEK | Iowa | Fair | 1984 | 43.3 m | 7,600 |
| BURCHAM CREEK | Iowa | Fair | 1967 | 35.7 m | 7,600 |
| NE 3RD ST | Iowa | Good | 2000 | 37.5 m | 7,600 |
| OLD SOLDIER RIVER DITCH | Iowa | Fair | 1967 | 31.1 m | 7,600 |
| US 30 & 151 | Iowa | Fair | 1975 | 157.6 m | 7,600 |
| STREAM | Iowa | Fair | 1931 | 6.7 m | 7,600 |
| I-80 | Iowa | Good | 1992 | 95.4 m | 7,600 |
| UP RR & K-45 | Iowa | Fair | 1967 | 138.7 m | 7,600 |
| UP RR & K-45 | Iowa | Fair | 1967 | 138.7 m | 7,600 |
| OLD SOLDIER RIVER DITCH | Iowa | Fair | 1967 | 31.1 m | 7,600 |
| ENGLISH RIVER | Iowa | Fair | 1984 | 139.9 m | 7,600 |
| QUARRY HAUL RD | Iowa | Good | 2010 | 37.5 m | 7,579 |
| CEDAR RIVER & IA NORTH R | Iowa | Good | 1995 | 872.0 m | 7,550 |
| 18TH ST | Iowa | Good | 1994 | 65.5 m | 7,550 |
| WATERLOO RD | Iowa | Good | 1995 | 65.5 m | 7,550 |
| GRAND RIVER | Iowa | Fair | 1970 | 111.3 m | 7,550 |
| BIG SIOUX RIVER | Iowa | Fair | 1976 | 125.9 m | 7,542 |
| RRS N 10TH AND N 13TH | Iowa | Fair | 2006 | 393.2 m | 7,534 |
| FOUR MILE CREEK | Iowa | Good | 1991 | 46.9 m | 7,530 |
| STREAM | Iowa | Good | 2020 | 21.6 m | 7,500 |
| Bur Jun RR AND CITY STS | Iowa | Fair | 1971 | 161.2 m | 7,500 |
| US 30 | Iowa | Fair | 1967 | 67.7 m | 7,500 |
| CITY ST ROW | Iowa | Good | 1979 | 16.8 m | 7,500 |
| E FORK DES MOINES RIVER | Iowa | Good | 2008 | 111.9 m | 7,500 |
| STREAM | Iowa | Fair | 1948 | 8.5 m | 7,500 |
| MISSISSIPPI RIVER | Iowa | Fair | 1994 | 691.9 m | 7,500 |
| UP RR | Iowa | Good | 2001 | 54.6 m | 7,500 |
| J ST SW | Iowa | Fair | 1975 | 68.0 m | 7,500 |
| STREAM | Iowa | Good | 2020 | 30.7 m | 7,500 |
| VIADUCT(RR & STREETS) | Iowa | Poor | 1976 | 807.4 m | 7,488 |
| TIMBER CREEK | Iowa | Good | 1995 | 58.5 m | 7,450 |
| STREAM | Iowa | Fair | 1926 | 7.9 m | 7,450 |
| ENGLISH RIVER | Iowa | Good | 1994 | 139.6 m | 7,450 |
| MUD CREEK | Iowa | Good | 1963 | 47.5 m | 7,450 |
| STREAM | Iowa | Good | 2019 | 21.6 m | 7,450 |
| GOOSE CREEK | Iowa | Good | 1994 | 43.3 m | 7,450 |
| MUD CREEK | Iowa | Fair | 1963 | 46.6 m | 7,450 |
| DAVIS CREEK | Iowa | Good | 1994 | 40.5 m | 7,450 |
| STREAM | Iowa | Good | 1926 | 7.9 m | 7,450 |
| CITY ST R.O.W | Iowa | Fair | 1979 | 95.4 m | 7,400 |
| I 80 | Iowa | Fair | 1967 | 77.8 m | 7,350 |
| I 80 | Iowa | Fair | 1967 | 77.7 m | 7,350 |
| WAPSIPINICON RIVER | Iowa | Fair | 1964 | 131.4 m | 7,350 |
| OVER UP RR | Iowa | Good | 1986 | 54.9 m | 7,350 |
| WEST BOYER RIVER | Iowa | Fair | 1985 | 66.1 m | 7,347 |
| INDIAN CREEK | Iowa | Fair | 1980 | 53.6 m | 7,347 |
| DRAINAGE DITCH | Iowa | Fair | 1967 | 28.0 m | 7,300 |
| MORGAN CREEK | Iowa | Fair | 1955 | 37.2 m | 7,300 |
| DRAINAGE DITCH | Iowa | Fair | 1967 | 28.0 m | 7,300 |
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.