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 | 1964 | 67.7 m | 1,148 |
| SMALL STREAM | Iowa | Fair | 1984 | 9.4 m | 1,147 |
| S.BR.CROOKED CREEK | Iowa | Fair | 1950 | 13.7 m | 1,147 |
| STORM CREEK | Iowa | Good | 1984 | 31.1 m | 1,146 |
| RACCOON RIVER | Iowa | Fair | 1925 | 75.0 m | 1,146 |
| MONKEY RUN | Iowa | Fair | 1935 | 15.2 m | 1,140 |
| DRAINAGE | Iowa | Good | 2006 | 6.7 m | 1,140 |
| WAPSIPINICON RIVER | Iowa | Fair | 1961 | 199.0 m | 1,140 |
| LITTLE CEDAR CREEK | Iowa | Good | 1988 | 28.3 m | 1,140 |
| HESS RD | Iowa | Fair | 1983 | 58.2 m | 1,140 |
| WAPSIPINICON RIVER OVFLW | Iowa | Fair | 1977 | 48.5 m | 1,140 |
| WAPSIPINICON RIVER | Iowa | Fair | 1977 | 108.2 m | 1,140 |
| US 63 | Iowa | Good | 1997 | 87.8 m | 1,140 |
| GRAYBILL CREEK | Iowa | Good | 1991 | 39.0 m | 1,140 |
| US 30 | Iowa | Fair | 1975 | 72.5 m | 1,140 |
| EAST JORDAN CREEK | Iowa | Good | 1991 | 6.7 m | 1,140 |
| SMALL NATURAL CREEK | Iowa | Fair | 1949 | 11.0 m | 1,139 |
| ELK CREEK | Iowa | Fair | 1926 | 7.9 m | 1,139 |
| CREEK | Iowa | Fair | 1998 | 18.3 m | 1,138 |
| SMALL | Iowa | Fair | 2006 | 11.3 m | 1,137 |
| MIDDLE RIVER | Iowa | Good | 2011 | 93.3 m | 1,136 |
| NORTH SKUNK RIVER | Iowa | Good | 1999 | 100.9 m | 1,130 |
| BUCKLEY CREEK(MIDDLE BR) | Iowa | Good | 1984 | 35.4 m | 1,130 |
| E BR BUCKLEY CREEK | Iowa | Fair | 1983 | 8.8 m | 1,130 |
| BIG INDIAN CREEK | Iowa | Fair | 1969 | 54.3 m | 1,130 |
| BONE RUN CREEK | Iowa | Fair | 1969 | 6.4 m | 1,130 |
| FOX RIVER | Iowa | Fair | 1969 | 77.1 m | 1,130 |
| LITTLE CREEK | Iowa | Fair | 1967 | 8.8 m | 1,130 |
| EAST 102 RIVER | Iowa | Fair | 1978 | 46.6 m | 1,130 |
| DICKERSONS BRANCH | Iowa | Fair | 1928 | 16.2 m | 1,130 |
| CLEAR CREEK | Iowa | Fair | 1964 | 9.8 m | 1,130 |
| SIX MILE CREEK | Iowa | Good | 2013 | 78.3 m | 1,130 |
| BEAVER CREEK | Iowa | Fair | 1975 | 40.8 m | 1,130 |
| DRAINAGE | Iowa | Good | 1954 | 6.4 m | 1,130 |
| DRY RUN | Iowa | Fair | 1969 | 31.4 m | 1,130 |
| BRUSH BRANCH | Iowa | Good | 1966 | 6.4 m | 1,130 |
| MILL CREEK | Iowa | Good | 1969 | 44.5 m | 1,130 |
| INDIAN CREEK | Iowa | Good | 2021 | 66.2 m | 1,130 |
| MIDDLE RIVER | Iowa | Fair | 1967 | 65.2 m | 1,130 |
| INDIAN CREEK | Iowa | Poor | 2002 | 29.6 m | 1,129 |
| DRY RUN CREEK | Iowa | Good | 2010 | 7.6 m | 1,129 |
| TRIB INDIAN CREEK | Iowa | Fair | 1999 | 14.9 m | 1,129 |
| WEST OTTER CREEK | Iowa | Fair | 1938 | 10.4 m | 1,127 |
| IA 5 | Iowa | Good | 2000 | 118.6 m | 1,127 |
| CUMMINS CREEK | Iowa | Good | 2010 | 24.4 m | 1,127 |
| TRIB TO BUFFALO CREEK | Iowa | Good | 2024 | 6.7 m | 1,121 |
| BIG SIOUX RIVER | Iowa | Fair | 1996 | 149.3 m | 1,121 |
| LITTLE SIOUX RIVER | Iowa | Fair | 1973 | 129.5 m | 1,120 |
| LAKE CHANNEL | Iowa | Good | 2010 | 34.4 m | 1,120 |
| SMALL STREAM | Iowa | Good | 1992 | 6.1 m | 1,120 |
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.