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 |
|---|---|---|---|---|---|
| WILLIAMS CREEK | Iowa | Poor | 1936 | 18.3 m | 1,650 |
| SPRING CREEK | Iowa | Good | 2014 | 42.9 m | 1,650 |
| SMALL CREEK | Iowa | Fair | 1998 | 7.9 m | 1,650 |
| SMALL CREEK | Iowa | Fair | 1998 | 34.4 m | 1,650 |
| DRAINAGE DITCH | Iowa | Fair | 1966 | 6.3 m | 1,650 |
| LITTLE WAPSIPINICON | Iowa | Good | 1996 | 74.1 m | 1,650 |
| ELK CREEK | Iowa | Good | 2016 | 33.8 m | 1,650 |
| PINE CREEK | Iowa | Good | 1991 | 18.9 m | 1,650 |
| MAPLE CREEK | Iowa | Fair | 1957 | 38.7 m | 1,650 |
| IOWA RIVER OVERFLOW | Iowa | Fair | 1922 | 6.4 m | 1,650 |
| E BRANCH IOWA RIVER | Iowa | Good | 2015 | 52.2 m | 1,650 |
| NORTH RIVER | Iowa | Good | 1955 | 92.7 m | 1,649 |
| ROCK CREEK | Iowa | Good | 1982 | 7.9 m | 1,649 |
| DRAINAGE | Iowa | Fair | 1989 | 7.6 m | 1,640 |
| ROCK CREEK | Iowa | Fair | 1956 | 38.7 m | 1,640 |
| BNSF RR | Iowa | Fair | 2006 | 106.7 m | 1,640 |
| OVERFLOW FROM SUGAR CRK | Iowa | Poor | 1971 | 39.0 m | 1,640 |
| BNSF RR | Iowa | Fair | 1972 | 86.6 m | 1,640 |
| MORGAN CREEK | Iowa | Good | 2016 | 131.1 m | 1,640 |
| MORGAN CREEK | Iowa | Good | 2016 | 131.1 m | 1,640 |
| BLACK HAWK CREEK | Iowa | Fair | 1973 | 53.3 m | 1,638 |
| DRAINAGE | Iowa | Good | 1973 | 13.7 m | 1,638 |
| ODEBOLT CREEK | Iowa | Poor | 1972 | 54.6 m | 1,635 |
| LINN CREEK | Iowa | Good | 2007 | 31.4 m | 1,630 |
| SUGAR CREEK | Iowa | Good | 2021 | 63.1 m | 1,630 |
| DRAINAGE DITCH | Iowa | Fair | 1976 | 10.1 m | 1,630 |
| CRANE CREEK | Iowa | Fair | 1976 | 40.5 m | 1,630 |
| OVER BNSF RR | Iowa | Fair | 1986 | 58.5 m | 1,630 |
| DRAINAGE DITCH | Iowa | Poor | 1953 | 114.9 m | 1,630 |
| DRAINAGE DITCH | Iowa | Poor | 1953 | 93.6 m | 1,630 |
| STREAM | Iowa | Poor | 1953 | 114.9 m | 1,630 |
| BR PLUM CR | Iowa | Fair | 1989 | 6.4 m | 1,630 |
| CEDAR RIVER | Iowa | Fair | 1906 | 204.2 m | 1,629 |
| RELOC US 30 | Iowa | Good | 2010 | 57.9 m | 1,628 |
| DRAINAGE DITCH #70 | Iowa | Fair | 1969 | 8.2 m | 1,626 |
| IA 60 | Iowa | Good | 2006 | 83.8 m | 1,626 |
| I-80 | Iowa | Fair | 1966 | 74.7 m | 1,623 |
| US 34 & 275 | Iowa | Fair | 1973 | 100.0 m | 1,623 |
| MIDDLE RACCOON RIVER | Iowa | Good | 2005 | 46.0 m | 1,623 |
| GENEVA CREEK | Iowa | Fair | 1980 | 30.5 m | 1,620 |
| IOWA RIVER | Iowa | Fair | 1976 | 72.5 m | 1,620 |
| STREAM | Iowa | Fair | 1976 | 37.8 m | 1,620 |
| GREENBRIER CREEK | Iowa | Good | 1993 | 29.9 m | 1,620 |
| TIPTON CREEK | Iowa | Good | 2003 | 57.9 m | 1,620 |
| DRY BRANCH CREEK | Iowa | Good | 2023 | 58.5 m | 1,620 |
| DRAINAGE DITCH | Iowa | Fair | 2009 | 34.7 m | 1,620 |
| DRAINAGE | Iowa | Fair | 1977 | 30.5 m | 1,615 |
| DRAINAGE DITCH | Iowa | Fair | 1955 | 10.7 m | 1,611 |
| CEDAR RIVER | Iowa | Poor | 1912 | 201.2 m | 1,610 |
| SIMMONS CREEK | Iowa | Fair | 1964 | 23.5 m | 1,610 |
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.