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 |
|---|---|---|---|---|---|
| I-35 | Iowa | Fair | 1958 | 61.3 m | 649 |
| WINNEBAGO RIVER | Iowa | Fair | 1968 | 38.7 m | 649 |
| NO NAME CREEK | Iowa | Fair | 1967 | 22.9 m | 649 |
| OTTER CREEK | Iowa | Good | 2020 | 78.3 m | 649 |
| SMALL NATURAL STREAM | Iowa | Poor | 1940 | 8.5 m | 649 |
| INDIAN CREEK | Iowa | Poor | 1967 | 22.9 m | 649 |
| TRULINER CREEK | Iowa | Fair | 1937 | 9.1 m | 649 |
| CREEK | Iowa | Good | 2008 | 31.4 m | 649 |
| SMALL CREEK | Iowa | Good | 2009 | 7.0 m | 649 |
| BIG CEDAR CREEK | Iowa | Fair | 1964 | 46.3 m | 649 |
| CATFISH CREEK | Iowa | Fair | 2018 | 7.6 m | 648 |
| TRIB TO PRAIRIE CREEK | Iowa | Good | 2022 | 11.8 m | 648 |
| CRANE CREEK | Iowa | Fair | 1951 | 46.3 m | 648 |
| BRANCH IOWA RIVER | Iowa | Good | 2022 | 9.8 m | 648 |
| BEAR CREEK | Iowa | Poor | 1951 | 47.2 m | 648 |
| SPRING CREEK | Iowa | Good | 1985 | 7.6 m | 648 |
| BRANCH UPPER IOWA RIVER | Iowa | Fair | 1930 | 6.7 m | 648 |
| CHESALEA CREEK | Iowa | Good | 1989 | 13.7 m | 644 |
| CHESLEA CREEK | Iowa | Fair | 1989 | 25.3 m | 644 |
| MOSQUITO CREEK | Iowa | Fair | 1980 | 70.1 m | 644 |
| SMALL NATURAL STREAM | Iowa | Poor | 1959 | 9.4 m | 643 |
| BR OF FOUR MI CR | Iowa | Good | 2019 | 21.6 m | 643 |
| OSCAR CREEK | Iowa | Poor | 1917 | 7.9 m | 640 |
| NORTH ENGLISH RIVER | Iowa | Fair | 1997 | 39.3 m | 640 |
| SMALL STREAM | Iowa | Good | 2015 | 11.6 m | 640 |
| DEEP RIVER | Iowa | Fair | 1997 | 27.7 m | 640 |
| SUGAR CREEK | Iowa | Poor | 1960 | 7.0 m | 640 |
| HICORY CREEK | Iowa | Good | 2010 | 21.3 m | 640 |
| US 52 | Iowa | Good | 2017 | 86.9 m | 640 |
| SMALL STREAM | Iowa | Good | 2009 | 10.4 m | 640 |
| CROOKED CREEK | Iowa | Good | 2007 | 34.4 m | 640 |
| E. FORK CROOKED CREEK | Iowa | Good | 2003 | 41.5 m | 640 |
| SOAP CREEK | Iowa | Poor | 1956 | 61.3 m | 640 |
| DRAINAGE DITCH | Iowa | Poor | 1959 | 29.0 m | 639 |
| SMALL STREAM | Iowa | Good | 2024 | 7.0 m | 639 |
| SMALL STREAM | Iowa | Good | 2019 | 9.6 m | 638 |
| SOUTH CEDAR CREEK | Iowa | Fair | 2009 | 39.6 m | 638 |
| PLUM CREEK | Iowa | Good | 2002 | 7.9 m | 638 |
| LITTLE WAPSIPINICON | Iowa | Good | 1995 | 39.6 m | 638 |
| LITTLE WAPSIPINICON | Iowa | Good | 2009 | 10.4 m | 638 |
| I-80 | Iowa | Fair | 1959 | 73.2 m | 638 |
| WAPSIPINICON RIVER | Iowa | Good | 2023 | 62.3 m | 638 |
| INLET CREEK | Iowa | Good | 1987 | 7.9 m | 638 |
| STREAM | Iowa | Poor | 1966 | 13.1 m | 638 |
| SMALL STREAM | Iowa | Good | 1990 | 23.8 m | 638 |
| BRUSHY FORK CREEK | Iowa | Fair | 1968 | 21.9 m | 638 |
| STREAM | Iowa | Good | 1998 | 6.4 m | 638 |
| MIDDLE MINERVA CREEK | Iowa | Fair | 1973 | 11.0 m | 638 |
| BRUSHY FORK CREEK | Iowa | Good | 1990 | 27.7 m | 638 |
| SPRING CREEK | Iowa | Good | 2022 | 7.6 m | 638 |
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.