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 |
|---|---|---|---|---|---|
| SOAP CREEK | Iowa | Good | 1978 | 37.5 m | 1,350 |
| ROCK RUN CREEK | Iowa | Good | 2008 | 6.7 m | 1,350 |
| RIO GRANDE CREEK | Iowa | Good | 2011 | 27.7 m | 1,349 |
| WILLOW CREEK | Iowa | Fair | 1991 | 55.2 m | 1,347 |
| MINK CREEK | Iowa | Good | 2012 | 46.6 m | 1,347 |
| W BR FLOYD RIVER | Iowa | Good | 2012 | 62.3 m | 1,347 |
| STREAM | Iowa | Good | 2000 | 7.6 m | 1,347 |
| WOLF CREEK | Iowa | Good | 2013 | 8.8 m | 1,345 |
| LITTLE TURKEY RIVER | Iowa | Poor | 1954 | 54.9 m | 1,344 |
| BIG CREEK TRIBUTARY | Iowa | Fair | 1970 | 135.6 m | 1,340 |
| ROCK CREEK | Iowa | Fair | 1925 | 15.2 m | 1,340 |
| ROCK CREEK | Iowa | Good | 2006 | 25.3 m | 1,340 |
| BOYER RIVER | Iowa | Fair | 1958 | 86.6 m | 1,340 |
| BLOWERS CREEK | Iowa | Fair | 1900 | 7.9 m | 1,339 |
| QUARTER SECTION RUN CRK | Iowa | Fair | 1969 | 39.0 m | 1,339 |
| SIX MILE CREEK | Iowa | Good | 1982 | 10.4 m | 1,337 |
| LITTLE FLOYD RIVER | Iowa | Good | 1987 | 46.9 m | 1,337 |
| LAMKIN CREEK | Iowa | Good | 1976 | 11.6 m | 1,337 |
| PRAIRIE CREEK | Iowa | Fair | 1971 | 69.5 m | 1,336 |
| MOSQUITO CREEK | Iowa | Fair | 1994 | 124.1 m | 1,335 |
| DD | Iowa | Good | 1993 | 7.3 m | 1,330 |
| LITTLE CEDAR CREEK | Iowa | Fair | 1949 | 37.8 m | 1,330 |
| LICK CREEK | Iowa | Good | 2021 | 40.6 m | 1,330 |
| STRATTON CREEK | Iowa | Fair | 1922 | 13.4 m | 1,330 |
| STREAM | Iowa | Fair | 1960 | 7.6 m | 1,330 |
| MINERVA CREEK | Iowa | Good | 1985 | 25.3 m | 1,330 |
| WELDON RIVER | Iowa | Fair | 1984 | 68.9 m | 1,330 |
| BRUSH CREEK | Iowa | Fair | 1984 | 31.4 m | 1,330 |
| STREAM | Iowa | Fair | 1928 | 6.4 m | 1,330 |
| SOUTH RIVER | Iowa | Fair | 1979 | 69.8 m | 1,330 |
| IAIS RR | Iowa | Fair | 1973 | 58.5 m | 1,330 |
| SMALL STREAM | Iowa | Good | 1993 | 8.2 m | 1,330 |
| INDIAN CREEK | Iowa | Fair | 2002 | 16.2 m | 1,328 |
| WEST NODAWAY RIVER | Iowa | Fair | 1964 | 83.5 m | 1,325 |
| OVER BNSF RR | Iowa | Poor | 1930 | 48.5 m | 1,325 |
| WEST NODAWAY RIVER | Iowa | Fair | 1970 | 83.8 m | 1,325 |
| US 34 | Iowa | Fair | 1973 | 100.0 m | 1,321 |
| HONEY CREEK | Iowa | Fair | 1991 | 29.9 m | 1,320 |
| BRANCH HONEY CREEK | Iowa | Good | 1991 | 8.8 m | 1,320 |
| DRAINAGE DITCH | Iowa | Fair | 1933 | 6.7 m | 1,320 |
| WOLF CREEK | Iowa | Fair | 1955 | 9.8 m | 1,320 |
| WHITE OAK CREEK | Iowa | Fair | 1925 | 10.4 m | 1,320 |
| I-80 & US 6 | Iowa | Fair | 1959 | 71.0 m | 1,320 |
| PERRY CREEK | Iowa | Fair | 1993 | 69.2 m | 1,319 |
| NORTH WALNUT CREEK | Iowa | Fair | 1987 | 20.7 m | 1,318 |
| WOLF CREEK | Iowa | Good | 2021 | 99.7 m | 1,316 |
| LOST CREEK | Iowa | Poor | 1953 | 47.2 m | 1,310 |
| OVER BNSF RR | Iowa | Fair | 1981 | 65.2 m | 1,310 |
| US 30 | Iowa | Good | 2017 | 79.2 m | 1,310 |
| HARTS MILL CREEK | Iowa | Good | 1962 | 8.2 m | 1,310 |
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.