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 |
|---|---|---|---|---|---|
| DRAINAGE | Iowa | Fair | 1957 | 7.0 m | 320 |
| DRAINAGE DITCH 12 | Iowa | Fair | 1967 | 31.4 m | 320 |
| BUCKEYE CREEK | Iowa | Good | 2006 | 27.4 m | 320 |
| SMALL STREAM | Iowa | Fair | 1950 | 6.4 m | 320 |
| MUD CREEK | Iowa | Fair | 1967 | 31.1 m | 320 |
| N SKUNK RIVER | Iowa | Good | 1991 | 74.1 m | 320 |
| SMALL CREEK | Iowa | Good | 2018 | 15.5 m | 320 |
| NORTH ENGLISH RIVER | Iowa | Good | 2002 | 65.2 m | 320 |
| IOWA RIVER | Iowa | Poor | 1959 | 59.1 m | 320 |
| MIDDLE CREEK | Iowa | Good | 1991 | 46.0 m | 320 |
| BR W FORK CEDAR RIVER | Iowa | Good | 2004 | 8.2 m | 320 |
| DEVILS RUN | Iowa | Fair | 1975 | 11.9 m | 320 |
| OVERFLOW IOWA RIVER | Iowa | Poor | 1900 | 12.8 m | 320 |
| CREEK | Iowa | Fair | 1968 | 14.9 m | 320 |
| DRAINAGE DITCH | Iowa | Poor | 1960 | 16.8 m | 319 |
| CREEK | Iowa | Fair | 1994 | 6.4 m | 319 |
| OTTER CREEK | Iowa | Poor | 1969 | 31.4 m | 319 |
| BRANCH OTTER CREEK | Iowa | Fair | 1972 | 27.4 m | 319 |
| I-29 | Iowa | Fair | 1966 | 66.8 m | 319 |
| CREEK | Iowa | Poor | 1959 | 8.2 m | 319 |
| STREAM | Iowa | Fair | 1969 | 17.4 m | 319 |
| SILVER CREEK | Iowa | Fair | 1969 | 46.9 m | 319 |
| CLEGHORN DD | Iowa | Good | 2002 | 10.4 m | 319 |
| RUTT BRANCH | Iowa | Good | 2009 | 7.3 m | 319 |
| LITTLE SIOUX RIVER | Iowa | Fair | 1966 | 86.0 m | 319 |
| BRANCH BADGER CREEK | Iowa | Good | 2021 | 36.9 m | 319 |
| RACOON RIVER | Iowa | Fair | 1970 | 61.9 m | 319 |
| UNNAMED CREEK | Iowa | Good | 2022 | 6.7 m | 319 |
| BACON CREEK | Iowa | Good | 2021 | 11.6 m | 319 |
| SPRING VALLEY CREEK | Iowa | Fair | 1960 | 40.2 m | 319 |
| HALFWAY CREEK | Iowa | Fair | 1973 | 31.4 m | 319 |
| D D | Iowa | Fair | 1996 | 6.4 m | 319 |
| PRAIRE CREEK | Iowa | Poor | 1996 | 27.7 m | 319 |
| OTTER CREEK | Iowa | Fair | 1974 | 6.4 m | 319 |
| INDIAN CREEK | Iowa | Good | 1984 | 39.0 m | 319 |
| DYE CREEK | Iowa | Fair | 1967 | 9.8 m | 319 |
| PERRY CREEK | Iowa | Good | 2006 | 38.1 m | 319 |
| LONG BRANCH | Iowa | Good | 2012 | 7.6 m | 319 |
| MILL CREEK | Iowa | Good | 2019 | 83.5 m | 319 |
| GREY CREEK | Iowa | Poor | 1970 | 23.5 m | 319 |
| BEAR CREEK | Iowa | Fair | 1966 | 23.5 m | 319 |
| WILLOW CREEK | Iowa | Fair | 1967 | 13.1 m | 319 |
| OTTER CREEK | Iowa | Fair | 1974 | 6.4 m | 319 |
| WEST NISHNABOTNA RIVER | Iowa | Good | 1985 | 50.9 m | 319 |
| DYE CREEK | Iowa | Fair | 1967 | 9.8 m | 319 |
| RUTT BRANCH | Iowa | Fair | 1994 | 8.5 m | 319 |
| CREEK | Iowa | Good | 1997 | 7.3 m | 319 |
| LITTLE SIOUX | Iowa | Poor | 1969 | 30.8 m | 319 |
| STONY CREEK | Iowa | Poor | 1990 | 31.4 m | 315 |
| LITTLE SIOUX RIVER | Iowa | Good | 2003 | 57.6 m | 315 |
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.