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 |
|---|---|---|---|---|---|
| MORGAN CREEK | Iowa | Good | 2016 | 125.1 m | 1,530 |
| SPRING CREEK | Iowa | Fair | 1988 | 13.4 m | 1,530 |
| BRUSHY CREEK | Iowa | Good | 1976 | 59.7 m | 1,530 |
| DRAINAGE DITCH | Iowa | Good | 2011 | 21.5 m | 1,530 |
| DRAINAGE DITCH | Iowa | Good | 2018 | 7.6 m | 1,530 |
| OLD MAN CREEK | Iowa | Good | 2005 | 69.8 m | 1,530 |
| TRIB TO KNAPP CREEK | Iowa | Fair | 1972 | 6.4 m | 1,530 |
| UNNAMED STREAM | Iowa | Good | 2014 | 7.6 m | 1,530 |
| RED ROCK CREEK | Iowa | Good | 2023 | 36.9 m | 1,530 |
| SMALL STREAM | Iowa | Poor | 1949 | 10.7 m | 1,530 |
| STREAM | Iowa | Fair | 1922 | 7.5 m | 1,530 |
| WEST NISHNABOTNA RIVER | Iowa | Fair | 1990 | 75.0 m | 1,530 |
| BELL CREEK | Iowa | Fair | 1973 | 7.6 m | 1,530 |
| CREEK | Iowa | Good | 2011 | 6.7 m | 1,530 |
| MOON CREEK | Iowa | Good | 1985 | 42.1 m | 1,530 |
| SUGAR CREEK | Iowa | Fair | 1985 | 58.8 m | 1,530 |
| SMALL NATURAL STREAM | Iowa | Fair | 1969 | 7.9 m | 1,528 |
| DES MOINES RIVER | Iowa | Good | 2000 | 210.0 m | 1,526 |
| N FORK MAQUOKETA RIVER | Iowa | Fair | 1979 | 38.7 m | 1,525 |
| BEAVER CREEK | Iowa | Fair | 1972 | 75.3 m | 1,524 |
| PONY CREEK | Iowa | Poor | 1969 | 7.3 m | 1,524 |
| NISHNABOTNA RIVER | Iowa | Poor | 1961 | 77.1 m | 1,524 |
| BRANCH OF BUCK CREEK | Iowa | Good | 2021 | 34.4 m | 1,524 |
| TURKEY RIVER | Iowa | Good | 2009 | 45.7 m | 1,522 |
| WALNUT CREEK | Iowa | Good | 1984 | 52.1 m | 1,520 |
| DRAINAGE DITCH | Iowa | Good | 1989 | 10.1 m | 1,520 |
| FLOOD CREEK | Iowa | Fair | 1947 | 37.8 m | 1,520 |
| HONEY CREEK | Iowa | Good | 1991 | 31.4 m | 1,520 |
| EAST SOLDIER RIVER | Iowa | Fair | 1953 | 65.2 m | 1,520 |
| DRAINAGE DITCH | Iowa | Good | 1977 | 6.4 m | 1,520 |
| JIM CREEK | Iowa | Fair | 1986 | 7.6 m | 1,520 |
| SHELL ROCK RIVER | Iowa | Good | 1967 | 158.8 m | 1,520 |
| BNSF RR ROAD & CK | Iowa | Fair | 1992 | 178.9 m | 1,520 |
| IA 438 | Iowa | Fair | 2001 | 69.5 m | 1,520 |
| SMALL STREAM | Iowa | Fair | 1958 | 14.6 m | 1,518 |
| MUDDY CREEK | Iowa | Fair | 1951 | 16.2 m | 1,514 |
| WILLOW CREEK | Iowa | Fair | 1966 | 33.5 m | 1,512 |
| ELK RUN CREEK | Iowa | Good | 1984 | 7.6 m | 1,512 |
| DRAINAGE DITCH | Iowa | Fair | 1954 | 10.7 m | 1,510 |
| CLEAR CREEK | Iowa | Fair | 1984 | 13.4 m | 1,510 |
| BRANCH CLEAR CREEK | Iowa | Fair | 1984 | 11.0 m | 1,510 |
| WAPSINONOC CREEK | Iowa | Poor | 1981 | 39.0 m | 1,510 |
| US 18 | Iowa | Good | 1998 | 68.6 m | 1,502 |
| OTTER CREEK | Iowa | Poor | 1971 | 37.5 m | 1,501 |
| IA NR RR | Iowa | Fair | 1936 | 41.8 m | 1,500 |
| MUCKY CREEK | Iowa | Good | 1977 | 6.7 m | 1,500 |
| NORTH SKUNK RIVER | Iowa | Good | 1985 | 87.2 m | 1,500 |
| BUCK CREEK | Iowa | Fair | 1985 | 52.1 m | 1,500 |
| ODEBOLT CREEK | Iowa | Fair | 1994 | 29.9 m | 1,500 |
| ELKHORN CREEK | Iowa | Good | 2003 | 57.3 m | 1,500 |
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.