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 |
|---|---|---|---|---|---|
| SMALL STREAM | Iowa | Good | 2000 | 13.4 m | 4,665 |
| DRAINAGE DITCH | Iowa | Good | 1993 | 28.3 m | 4,660 |
| COOPER CREK | Iowa | Good | 2023 | 47.8 m | 4,660 |
| PIGEON CR AND UP RR | Iowa | Fair | 2005 | 390.4 m | 4,660 |
| LITTLE SOAP CREEK | Iowa | Fair | 1964 | 67.4 m | 4,660 |
| OVER ABANDON RR | Iowa | Fair | 1965 | 45.7 m | 4,660 |
| OVER IAIS RR | Iowa | Good | 1999 | 52.1 m | 4,651 |
| 2ND ST NE | Iowa | Fair | 1979 | 179.2 m | 4,650 |
| WEST BR SUGAR CREEK | Iowa | Good | 2003 | 69.5 m | 4,650 |
| SUGAR CREEK | Iowa | Good | 2005 | 36.0 m | 4,650 |
| SUGAR CREEK | Iowa | Good | 2005 | 36.0 m | 4,650 |
| BEAR CREEK | Iowa | Good | 2013 | 60.0 m | 4,650 |
| BEAR CREEK | Iowa | Good | 2009 | 37.5 m | 4,650 |
| IA 137 | Iowa | Good | 2004 | 65.8 m | 4,650 |
| AITCHISON ROAD | Iowa | Good | 2002 | 46.9 m | 4,650 |
| SUGAR CREEK | Iowa | Good | 2003 | 36.9 m | 4,650 |
| UPRR | Iowa | Good | 1999 | 64.6 m | 4,650 |
| OVER UP RR | Iowa | Good | 1990 | 64.6 m | 4,650 |
| S. FK IOWA RIVER | Iowa | Good | 1990 | 52.1 m | 4,650 |
| SOUTH FORK IOWA RIVER | Iowa | Good | 1999 | 52.1 m | 4,650 |
| BEE BRANCH | Iowa | Good | 2017 | 27.7 m | 4,648 |
| WORRELL CREEK | Iowa | Good | 2010 | 11.6 m | 4,647 |
| WALNUT CREEK | Iowa | Fair | 2010 | 9.0 m | 4,647 |
| MIDDLE SOUTH CREEK | Iowa | Good | 2002 | 34.4 m | 4,643 |
| BLACK HAWK CREEK | Iowa | Fair | 1949 | 39.0 m | 4,635 |
| DRAINAGE | Iowa | Fair | 1992 | 18.3 m | 4,635 |
| OVER IAIS RR | Iowa | Fair | 1979 | 67.7 m | 4,620 |
| I-80 | Iowa | Fair | 1960 | 66.4 m | 4,610 |
| CROW CREEK | Iowa | Good | 1999 | 42.1 m | 4,610 |
| MISSISSIPPI BLVD | Iowa | Good | 2019 | 42.0 m | 4,610 |
| US 218 | Iowa | Fair | 1983 | 125.0 m | 4,601 |
| DRAINAGE | Iowa | Good | 1996 | 40.5 m | 4,600 |
| DRAINAGE | Iowa | Good | 1996 | 40.5 m | 4,600 |
| PRAIRIE CREEK | Iowa | Fair | 1967 | 43.9 m | 4,600 |
| US 218 T44 | Iowa | Good | 2022 | 52.4 m | 4,600 |
| SILVER CREEK | Iowa | Good | 1996 | 25.3 m | 4,600 |
| W FK LITTLE SIOUX RIVER | Iowa | Good | 2015 | 68.0 m | 4,600 |
| PRAIRIE CREEK | Iowa | Good | 1996 | 44.8 m | 4,600 |
| COMSTOCK CREEK | Iowa | Fair | 1988 | 25.3 m | 4,600 |
| SILVER CREEK | Iowa | Good | 1996 | 25.3 m | 4,600 |
| NO NAME CREEK | Iowa | Good | 2001 | 44.2 m | 4,594 |
| STREAM | Iowa | Good | 1939 | 6.4 m | 4,590 |
| IA 163 | Iowa | Good | 1997 | 69.8 m | 4,580 |
| I-80 | Iowa | Good | 1963 | 71.3 m | 4,576 |
| LITTLE SIOUX RIVER | Iowa | Fair | 1973 | 107.9 m | 4,570 |
| ABBE CREEK | Iowa | Good | 2016 | 7.8 m | 4,570 |
| LITTLE BEAVER CREEK | Iowa | Good | 2009 | 10.3 m | 4,570 |
| SOUTH EXPRESSWAY | Iowa | Good | 2020 | 89.0 m | 4,570 |
| LITTLE MOSQUITO CREEK | Iowa | Good | 2003 | 12.2 m | 4,558 |
| T 19 | Iowa | Fair | 2003 | 53.0 m | 4,550 |
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.