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 |
|---|---|---|---|---|---|
| TRIB TO BEAVER CREEK | Iowa | Good | 1994 | 11.9 m | 854 |
| I-380 | Iowa | Fair | 1984 | 121.6 m | 854 |
| SMALL NATURAL STREAM | Iowa | Poor | 1948 | 13.4 m | 854 |
| SMALL NATURAL STREAM | Iowa | Poor | 1947 | 9.4 m | 854 |
| CAMP CREEK | Iowa | Fair | 1957 | 32.6 m | 852 |
| DRAINAGE DITCH 5 | Iowa | Good | 2013 | 7.9 m | 851 |
| BLACKHAWK CREEK | Iowa | Fair | 1960 | 7.0 m | 851 |
| WILLOW CREEK | Iowa | Good | 1993 | 57.6 m | 851 |
| OTTER CREEK | Iowa | Good | 1978 | 54.3 m | 850 |
| IA 163 | Iowa | Good | 1997 | 69.9 m | 850 |
| COON CREEK | Iowa | Good | 1992 | 8.8 m | 850 |
| US 63 | Iowa | Good | 2005 | 133.8 m | 850 |
| BUCKEYE CREEK | Iowa | Fair | 1960 | 6.4 m | 850 |
| BUCKEYE CREEK | Iowa | Fair | 1960 | 7.6 m | 850 |
| STERN CREEK | Iowa | Fair | 1987 | 23.8 m | 850 |
| DRY CREEK | Iowa | Fair | 1988 | 22.3 m | 850 |
| SUGAR CREEK | Iowa | Good | 1991 | 10.4 m | 850 |
| NORTH SOAP CREEK | Iowa | Poor | 1968 | 55.5 m | 850 |
| SOUTH SOAP CREEK | Iowa | Fair | 1990 | 46.9 m | 850 |
| SMALL STREAM | Iowa | Good | 2001 | 7.6 m | 850 |
| BEAVER CREEK | Iowa | Fair | 1987 | 23.8 m | 848 |
| BOYER RIVER | Iowa | Poor | 1956 | 31.4 m | 848 |
| WHISKEY CREEK | Iowa | Good | 1997 | 38.1 m | 848 |
| BOYER RIVER | Iowa | Good | 2010 | 7.9 m | 848 |
| CREEK | Iowa | Fair | 1976 | 10.1 m | 848 |
| LITTLE MAPLE RIVER | Iowa | Fair | 1974 | 6.1 m | 848 |
| WEST NISHNABOTNA RIVER | Iowa | Good | 2011 | 37.6 m | 847 |
| STREAM | Iowa | Good | 1950 | 7.3 m | 847 |
| WEST NISHNABOTNA RIVER | Iowa | Fair | 1977 | 15.2 m | 847 |
| E NISHNABOTNA RIVER | Iowa | Fair | 1977 | 113.1 m | 847 |
| OVER BNSF RR | Iowa | Good | 2008 | 53.3 m | 847 |
| OVER BNSF RR | Iowa | Fair | 2009 | 231.6 m | 847 |
| ABBE CREEK | Iowa | Fair | 1960 | 37.2 m | 845 |
| TRIB TO CEDAR RIVER | Iowa | Good | 2017 | 28.3 m | 845 |
| DUGOUT CREEK | Iowa | Poor | 1970 | 27.7 m | 843 |
| AURELIA CREEK | Iowa | Poor | 1939 | 10.7 m | 841 |
| SMALL STREAM | Iowa | Fair | 1969 | 17.1 m | 840 |
| DEEP CREEK | Iowa | Fair | 1976 | 24.1 m | 840 |
| PRAIRIE CREEK | Iowa | Fair | 1973 | 27.4 m | 840 |
| DRAINAGE | Iowa | Fair | 1986 | 17.7 m | 840 |
| SMOKEY HOLLOW CREEK | Iowa | Good | 2001 | 21.6 m | 840 |
| HAIGHT CREEK | Iowa | Fair | 1978 | 7.9 m | 840 |
| DRAINAGE DITCH 2 | Iowa | Poor | 1969 | 23.5 m | 840 |
| SPRING CREEK | Iowa | Fair | 1986 | 11.9 m | 840 |
| BULL RUN CREEK | Iowa | Fair | 1960 | 54.3 m | 838 |
| LITTLE SIOUX RVR W FORK | Iowa | Good | 2008 | 33.5 m | 838 |
| LOST ISLAND LAKE | Iowa | Good | 2021 | 17.7 m | 838 |
| BULL RUN | Iowa | Good | 1995 | 34.4 m | 838 |
| SNAKE CREEK | Iowa | Poor | 1962 | 32.3 m | 837 |
| I-80 | Iowa | Fair | 1965 | 69.2 m | 837 |
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.