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 |
|---|---|---|---|---|---|
| FULTONS CREEK | Iowa | Fair | 1972 | 31.4 m | 1,390 |
| LONGS BRANCH | Iowa | Good | 1970 | 49.7 m | 1,390 |
| LONG BRANCH CREEK | Iowa | Fair | 1970 | 9.1 m | 1,390 |
| CREEK | Iowa | Fair | 1970 | 17.4 m | 1,390 |
| HONEY CREEK | Iowa | Good | 1976 | 40.8 m | 1,390 |
| DRAINAGE DITCH 9 | Iowa | Good | 2003 | 8.2 m | 1,387 |
| STREAM | Iowa | Good | 2003 | 7.6 m | 1,379 |
| OXLEY CREEK | Iowa | Good | 2016 | 11.9 m | 1,379 |
| FOUR MILE CREEK | Iowa | Fair | 1990 | 50.0 m | 1,377 |
| YELLOW RIVER | Iowa | Fair | 1962 | 8.2 m | 1,375 |
| IA 438 | Iowa | Good | 2001 | 69.5 m | 1,375 |
| ELK RUN CREEK | Iowa | Fair | 1971 | 30.5 m | 1,375 |
| TRIB TO ELK RUN CREEK | Iowa | Fair | 1971 | 11.2 m | 1,375 |
| CREEK | Iowa | Good | 2018 | 31.4 m | 1,375 |
| STREAM | Iowa | Fair | 1959 | 6.1 m | 1,375 |
| STREAM | Iowa | Good | 2002 | 7.3 m | 1,375 |
| TROUT RIVER | Iowa | Good | 2002 | 22.9 m | 1,375 |
| THREE MILE CREEK | Iowa | Good | 1989 | 8.2 m | 1,374 |
| STREAM | Iowa | Fair | 1989 | 9.4 m | 1,374 |
| NINE MILE RUN | Iowa | Fair | 1989 | 42.4 m | 1,374 |
| SMALL CREEK | Iowa | Good | 2013 | 16.2 m | 1,370 |
| LITTLE SUGAR CREEK | Iowa | Fair | 1975 | 34.4 m | 1,370 |
| ELK CREEK | Iowa | Poor | 1962 | 39.0 m | 1,370 |
| POYNER CREEK | Iowa | Good | 1983 | 45.7 m | 1,370 |
| SUGAR CREEK | Iowa | Good | 2005 | 34.7 m | 1,370 |
| WEST NODAWAY RIVER | Iowa | Fair | 1972 | 77.7 m | 1,370 |
| US 34 | Iowa | Fair | 2006 | 120.7 m | 1,370 |
| ROCK CREEK | Iowa | Fair | 1996 | 37.5 m | 1,365 |
| BEEDS CREEK | Iowa | Fair | 1961 | 13.4 m | 1,365 |
| SKUNK CREEK | Iowa | Fair | 1985 | 23.8 m | 1,365 |
| SMALL STREAM | Iowa | Good | 2018 | 22.3 m | 1,365 |
| STEWART CREEK | Iowa | Good | 2007 | 8.8 m | 1,365 |
| IOWA RIVER | Iowa | Poor | 1953 | 163.4 m | 1,365 |
| DEER CREEK | Iowa | Fair | 1972 | 27.7 m | 1,363 |
| STREAM | Iowa | Good | 2017 | 8.2 m | 1,360 |
| INDIAN CREEK | Iowa | Good | 2003 | 62.5 m | 1,360 |
| SNIPE CREEK | Iowa | Good | 2009 | 57.2 m | 1,360 |
| MILL CREEK | Iowa | Poor | 1962 | 38.7 m | 1,360 |
| ALLOWAY CREEK | Iowa | Good | 2023 | 40.5 m | 1,360 |
| DRAINAGE DITCH | Iowa | Good | 2020 | 10.0 m | 1,360 |
| I-80 | Iowa | Fair | 1963 | 71.3 m | 1,354 |
| GRAND RIVER | Iowa | Fair | 1985 | 88.7 m | 1,350 |
| ROCK RUN CREEK | Iowa | Good | 2008 | 6.7 m | 1,350 |
| SOAP CREEK | Iowa | Good | 1978 | 37.5 m | 1,350 |
| ELK CREEK | Iowa | Fair | 1985 | 53.3 m | 1,350 |
| BRUSH CREEK | Iowa | Fair | 1985 | 28.3 m | 1,350 |
| FOUR MILE CREEK | Iowa | Good | 2015 | 8.8 m | 1,350 |
| MIDDLE 102 RIVER | Iowa | Fair | 1977 | 40.5 m | 1,350 |
| WEST 102 RIVER | Iowa | Good | 1977 | 63.7 m | 1,350 |
| ROCK RUN CREEK | Iowa | Fair | 2000 | 27.7 m | 1,350 |
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.