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 |
|---|---|---|---|---|---|
| BNRR | Iowa | Good | 1994 | 51.2 m | 5,316 |
| STREAM | Iowa | Fair | 1923 | 9.1 m | 5,300 |
| OVER ABANDONED RR | Iowa | Fair | 1966 | 46.9 m | 5,300 |
| CO RD G-77 | Iowa | Good | 2001 | 54.6 m | 5,300 |
| PIG RUN CREEK | Iowa | Fair | 1923 | 6.4 m | 5,300 |
| VINE STREET | Iowa | Fair | 1966 | 46.9 m | 5,300 |
| DRAINAGE DITCH | Iowa | Fair | 1953 | 8.2 m | 5,300 |
| VINE STREET | Iowa | Fair | 1966 | 46.9 m | 5,300 |
| I-235 | Iowa | Good | 2002 | 88.7 m | 5,300 |
| STREAM | Iowa | Fair | 1953 | 7.0 m | 5,300 |
| ENGELS CREEK | Iowa | Good | 2006 | 13.1 m | 5,300 |
| BEAVER CREEK | Iowa | Good | 1976 | 6.7 m | 5,300 |
| BUFFALO CREEK | Iowa | Fair | 1961 | 31.2 m | 5,300 |
| MOSQUITO CREEK | Iowa | Fair | 1972 | 46.9 m | 5,300 |
| BIG CREEK | Iowa | Fair | 1961 | 10.1 m | 5,300 |
| IOWA #146 | Iowa | Good | 2002 | 61.9 m | 5,300 |
| IA 1 | Iowa | Good | 2001 | 62.2 m | 5,300 |
| ABANDON RR | Iowa | Fair | 1966 | 46.9 m | 5,300 |
| MCCANDLESSCLEGHORN DITCH | Iowa | Good | 2023 | 30.7 m | 5,300 |
| FLOYD RIVER | Iowa | Fair | 1993 | 87.2 m | 5,300 |
| OVER CC RR & CATFISH CK | Iowa | Fair | 1982 | 90.5 m | 5,295 |
| DESMOINES RIVER TRIBUTAR | Iowa | Fair | 1972 | 13.1 m | 5,277 |
| INDIAN CREEK | Iowa | Fair | 1983 | 13.7 m | 5,275 |
| UPRR | Iowa | Good | 1999 | 53.0 m | 5,250 |
| UPRR | Iowa | Good | 1999 | 53.0 m | 5,250 |
| ELLIOT CREEK | Iowa | Good | 2006 | 55.8 m | 5,250 |
| CEDAR RIVER & RD | Iowa | Fair | 1974 | 243.8 m | 5,228 |
| BEAVER CREEK | Iowa | Good | 1994 | 70.4 m | 5,205 |
| I-380 | Iowa | Good | 1983 | 83.2 m | 5,205 |
| MUD CREEK | Iowa | Fair | 1924 | 37.2 m | 5,200 |
| ELLIOT CREEK | Iowa | Fair | 2015 | 55.8 m | 5,200 |
| I-80 | Iowa | Fair | 1959 | 93.9 m | 5,200 |
| WEST FORK IOWA RIVER | Iowa | Fair | 1958 | 32.9 m | 5,200 |
| IA 1 | Iowa | Good | 2001 | 61.0 m | 5,200 |
| WILLOW CREEK | Iowa | Good | 2005 | 13.1 m | 5,200 |
| CCP RR & BNSF RR & BUS 7 | Iowa | Fair | 1999 | 261.2 m | 5,200 |
| DRAINAGE DITCH | Iowa | Fair | 1976 | 9.8 m | 5,200 |
| PINE CREEK | Iowa | Good | 1990 | 45.7 m | 5,200 |
| OAKS AVE | Iowa | Good | 1996 | 58.2 m | 5,200 |
| FOURMILE CREEK | Iowa | Fair | 1949 | 37.5 m | 5,200 |
| BLACK HAWK CREEK | Iowa | Good | 1995 | 79.9 m | 5,200 |
| BLACK HAWK CK OVERFLOW | Iowa | Good | 2006 | 62.5 m | 5,200 |
| WEST FORK FLOYD RIVER | Iowa | Fair | 1976 | 9.8 m | 5,200 |
| CCP RR & BNSF RR & RAMP | Iowa | Fair | 1999 | 230.7 m | 5,200 |
| CO RD G-77 | Iowa | Good | 2001 | 54.6 m | 5,200 |
| LONE TREE CREEK | Iowa | Poor | 1925 | 19.5 m | 5,200 |
| IAIS RR | Iowa | Fair | 1930 | 52.1 m | 5,200 |
| TRAIL | Iowa | Good | 2003 | 98.1 m | 5,200 |
| RAMP B TO IA AVE | Iowa | Good | 1996 | 70.1 m | 5,200 |
| BRANCH MAQUOKETA RIVER | Iowa | Good | 1975 | 11.6 m | 5,200 |
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.