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 |
|---|---|---|---|---|---|
| MIDDLE NODAWAY RIVER | Iowa | Good | 1978 | 62.2 m | 249 |
| BEAR CREEK | Iowa | Fair | 1999 | 39.0 m | 247 |
| CRABAPPLE | Iowa | Fair | 1998 | 21.9 m | 246 |
| TURKEY RIVER | Iowa | Good | 1983 | 92.7 m | 246 |
| SMALL STREAM | Iowa | Good | 1982 | 9.8 m | 246 |
| FORK WOLF CREEK | Iowa | Good | 1983 | 7.6 m | 246 |
| SPRING CREEK | Iowa | Fair | 1952 | 22.9 m | 246 |
| PRAIRIE CREEK | Iowa | Fair | 2000 | 7.6 m | 246 |
| FRINK CREEK | Iowa | Poor | 1937 | 13.7 m | 246 |
| SILVER CREEK | Iowa | Fair | 2000 | 7.6 m | 246 |
| CRANE CREEK | Iowa | Fair | 1998 | 53.6 m | 246 |
| SPRING CREEK | Iowa | Fair | 1992 | 7.6 m | 246 |
| WEST OTTER CREEK | Iowa | Good | 2007 | 39.0 m | 246 |
| WAYMAN CREEK | Iowa | Fair | 1951 | 38.1 m | 246 |
| CREEK | Iowa | Fair | 1918 | 9.4 m | 245 |
| WINNEBAGO RIVER | Iowa | Poor | 1975 | 32.6 m | 245 |
| COOPER CREEK | Iowa | Poor | 1959 | 32.6 m | 244 |
| DD #81 | Iowa | Fair | 1991 | 75.3 m | 244 |
| DRAINAGE | Iowa | Good | 2005 | 7.3 m | 243 |
| SMALL CREEK | Iowa | Poor | 1959 | 13.4 m | 242 |
| DRAINAGE | Iowa | Poor | 1920 | 6.7 m | 242 |
| MIDDLE RIVER | Iowa | Fair | 1959 | 40.5 m | 240 |
| PICAYUNE CR | Iowa | Fair | 1976 | 9.1 m | 240 |
| SMALL STREAM | Iowa | Fair | 2005 | 10.7 m | 240 |
| CREEK | Iowa | Fair | 2000 | 11.0 m | 240 |
| JACK CREEK | Iowa | Fair | 1973 | 23.8 m | 240 |
| LIZARD CREEK SO BRANCH | Iowa | Fair | 1969 | 31.1 m | 240 |
| POSSUM CREEK | Iowa | Fair | 1980 | 12.2 m | 240 |
| SMALL UN-NAMED CREEK | Iowa | Good | 1998 | 6.4 m | 240 |
| ELK CREEK | Iowa | Good | 2004 | 9.4 m | 240 |
| KEG CREEK | Iowa | Fair | 2000 | 70.1 m | 240 |
| SMALL STREAM | Iowa | Good | 2016 | 7.5 m | 240 |
| I-35 | Iowa | Fair | 1964 | 66.1 m | 240 |
| ELK CREEK | Iowa | Poor | 1958 | 54.3 m | 240 |
| DRY RUN | Iowa | Fair | 1997 | 7.3 m | 240 |
| LITTLE MUDDY CREEK | Iowa | Good | 1987 | 23.8 m | 240 |
| SILVER CREEK | Iowa | Good | 2017 | 34.1 m | 240 |
| SMALL CREEK | Iowa | Fair | 1978 | 22.9 m | 240 |
| N. FORK LITTLE MAQUOKETA | Iowa | Fair | 2001 | 30.5 m | 240 |
| SMALL STREAM | Iowa | Poor | 1972 | 7.3 m | 240 |
| D.D.#125 | Iowa | Fair | 1987 | 10.7 m | 240 |
| WHITE BREAST CREEK | Iowa | Fair | 1985 | 7.6 m | 240 |
| SODUS CREEK | Iowa | Good | 2004 | 14.0 m | 240 |
| CARSON CREEK | Iowa | Good | 2016 | 15.2 m | 240 |
| BUCK CREEK | Iowa | Fair | 1975 | 7.9 m | 240 |
| W FORK DES MOINES RIVER | Iowa | Good | 2019 | 69.8 m | 240 |
| DRAINAGE | Iowa | Good | 1964 | 7.6 m | 240 |
| SM STREAM | Iowa | Good | 2011 | 28.3 m | 240 |
| BEAR CREEK | Iowa | Fair | 1995 | 38.1 m | 240 |
| PRAIRIE CREEK | Iowa | Good | 2017 | 24.5 m | 240 |
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.