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 |
|---|---|---|---|---|---|
| MUD CREEK | Iowa | Fair | 1981 | 31.4 m | 255 |
| BR.BLACKHAWK CREEK | Iowa | Good | 1986 | 7.6 m | 255 |
| EAST BLUE CREEK TRIB TO | Iowa | Good | 2002 | 29.3 m | 255 |
| MILLER CREEK | Iowa | Poor | 1965 | 38.1 m | 255 |
| MIDDLE NODAWAY RIVER | Iowa | Poor | 1968 | 77.4 m | 255 |
| NODAWAY RIVER | Iowa | Good | 2005 | 110.6 m | 255 |
| EAST BLUE CREEK | Iowa | Good | 2002 | 21.9 m | 255 |
| UNNAMED STREAM | Iowa | Good | 2019 | 7.6 m | 255 |
| MINERVA CREEK | Iowa | Fair | 1981 | 10.7 m | 255 |
| BOYLAN CREEK | Iowa | Fair | 2002 | 58.5 m | 255 |
| LITTLE SIOUX RIVER | Iowa | Good | 2022 | 50.9 m | 255 |
| MINERVA CREEK | Iowa | Fair | 1982 | 75.0 m | 255 |
| CREEK | Iowa | Poor | 1942 | 6.4 m | 255 |
| OVER CNW RR | Iowa | Poor | 1936 | 38.7 m | 255 |
| LITTLE TURKEY RIVER | Iowa | Poor | 1960 | 54.4 m | 255 |
| SMALL STREAM | Iowa | Fair | 1986 | 8.5 m | 255 |
| I-380 | Iowa | Good | 1983 | 87.8 m | 255 |
| E OTTER CR | Iowa | Good | 2005 | 39.0 m | 255 |
| TRIB W FORK CEDAR RIVER | Iowa | Poor | 1966 | 9.1 m | 255 |
| LITTLE WAPSIPINICON RIVE | Iowa | Good | 2023 | 58.5 m | 254 |
| MILL POND CREEK | Iowa | Good | 2008 | 14.0 m | 254 |
| RIO GRANDE CREEK | Iowa | Fair | 1966 | 17.4 m | 254 |
| WILDCAT GLEN | Iowa | Fair | 1933 | 21.3 m | 253 |
| DRY RUN CREEK | Iowa | Good | 2015 | 10.2 m | 253 |
| DEVIL CREEK | Iowa | Poor | 1948 | 46.6 m | 250 |
| CREEK | Iowa | Fair | 1970 | 46.6 m | 250 |
| VILLAGE CREEK | Iowa | Poor | 1968 | 38.7 m | 250 |
| BEAVER CREEK | Iowa | Poor | 1960 | 31.4 m | 250 |
| IOWA RIVER OVERFLOW | Iowa | Good | 1998 | 13.7 m | 250 |
| NO FORK MAQUOKETA RIVER | Iowa | Good | 2016 | 34.4 m | 250 |
| DUTCH CREEK | Iowa | Good | 2016 | 50.9 m | 250 |
| SMALL | Iowa | Fair | 1942 | 7.0 m | 250 |
| BEAVER CREEK | Iowa | Fair | 1957 | 34.4 m | 250 |
| DEEP RIVER | Iowa | Good | 2009 | 36.6 m | 250 |
| LONG CREEK | Iowa | Poor | 1963 | 46.9 m | 250 |
| UNNAMED CREEK | Iowa | Good | 2022 | 7.3 m | 249 |
| BNSF RR | Iowa | Good | 2014 | 72.2 m | 249 |
| BOYER RIVER | Iowa | Good | 1994 | 75.0 m | 249 |
| OVERFLOW ON BOYER RIVER | Iowa | Poor | 1964 | 23.8 m | 249 |
| NO NAME CREEK | Iowa | Poor | 1925 | 8.5 m | 249 |
| CREEK | Iowa | Good | 2016 | 21.3 m | 249 |
| BEAVER CREEK | Iowa | Good | 2005 | 23.8 m | 249 |
| STREAM | Iowa | Fair | 1960 | 9.8 m | 249 |
| CLARK BRANCH | Iowa | Good | 1994 | 31.4 m | 249 |
| PRAIRIE CREEK | Iowa | Fair | 1972 | 39.5 m | 249 |
| FLOYD RIVER | Iowa | Good | 2010 | 58.5 m | 249 |
| CREEK | Iowa | Poor | 1976 | 10.4 m | 249 |
| DRAINAGE DITCH | Iowa | Good | 2004 | 6.7 m | 249 |
| MIDDLE NODAWAY RIVER | Iowa | Good | 1978 | 62.2 m | 249 |
| FOUR MILE CREEK | Iowa | Fair | 1975 | 23.9 m | 249 |
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.