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 |
|---|---|---|---|---|---|
| HUNTER CREEK | Iowa | Good | 1986 | 23.8 m | 2,330 |
| OTTER CREEK | Iowa | Fair | 1986 | 50.9 m | 2,330 |
| I-80 | Iowa | Fair | 1966 | 69.5 m | 2,330 |
| DME RR | Iowa | Good | 1993 | 59.1 m | 2,330 |
| CEDAR RIVER | Iowa | Good | 2024 | 177.1 m | 2,327 |
| WORRELL CREEK | Iowa | Fair | 1966 | 8.2 m | 2,324 |
| SMALL | Iowa | Good | 2004 | 8.2 m | 2,324 |
| DRAINAGE DITCH | Iowa | Fair | 1975 | 30.2 m | 2,320 |
| LITTLE LICK CREEK | Iowa | Fair | 1967 | 74.4 m | 2,320 |
| IA 163 | Iowa | Good | 1996 | 96.0 m | 2,320 |
| I-80 | Iowa | Good | 1962 | 66.4 m | 2,320 |
| WEST NISHNABOTNA RIVER | Iowa | Fair | 1929 | 108.2 m | 2,320 |
| I-35 | Iowa | Fair | 1970 | 90.8 m | 2,318 |
| HYERS CREEK | Iowa | Good | 2012 | 21.3 m | 2,315 |
| SMITH CREEK | Iowa | Fair | 1969 | 77.1 m | 2,310 |
| BIG ELKHORN CREEK | Iowa | Fair | 1997 | 31.4 m | 2,310 |
| WAPSI RIVER OVERFLOW | Iowa | Poor | 1922 | 83.8 m | 2,310 |
| WAPSIPINICON RIVER | Iowa | Fair | 1965 | 111.6 m | 2,310 |
| PHELPS CREEK | Iowa | Good | 2011 | 8.5 m | 2,300 |
| UPRR | Iowa | Good | 2001 | 92.1 m | 2,300 |
| COAL CREEK | Iowa | Fair | 1969 | 14.9 m | 2,300 |
| DRAINAGE | Iowa | Good | 1999 | 57.3 m | 2,300 |
| SMALL NATURAL STREAM | Iowa | Fair | 1931 | 7.6 m | 2,300 |
| HEATHS CREEK | Iowa | Fair | 1963 | 6.7 m | 2,290 |
| DEEP CREEK | Iowa | Good | 1984 | 82.0 m | 2,290 |
| DD NO 247 | Iowa | Poor | 1974 | 23.8 m | 2,284 |
| STREAM | Iowa | Fair | 1963 | 7.9 m | 2,281 |
| BLUEGRASS CREEK | Iowa | Fair | 1976 | 40.8 m | 2,280 |
| FOUR MILE CREEK | Iowa | Fair | 1971 | 6.7 m | 2,280 |
| I-80 | Iowa | Fair | 1959 | 66.8 m | 2,280 |
| WAPSIPINICON RIVER | Iowa | Fair | 1978 | 80.5 m | 2,280 |
| WAPSIPINICON OVERFLOW | Iowa | Good | 1978 | 28.3 m | 2,280 |
| SOUTH FORK LONG CREEK | Iowa | Fair | 1979 | 17.4 m | 2,280 |
| RAILROAD CREEK | Iowa | Fair | 1949 | 16.8 m | 2,279 |
| WINNEBAGO RIVER | Iowa | Fair | 1914 | 35.4 m | 2,278 |
| W BR LITTLE SIOUX RIVER | Iowa | Fair | 1967 | 7.6 m | 2,277 |
| OCHEYEDAN RIVER | Iowa | Good | 2012 | 74.1 m | 2,273 |
| DES MOINES RIVER | Iowa | Good | 2007 | 208.8 m | 2,270 |
| TROUBLESOME CREEK | Iowa | Good | 1993 | 53.3 m | 2,270 |
| EAST NISHNABOTNA RIVER | Iowa | Fair | 1959 | 86.9 m | 2,270 |
| US 30 W JCT | Iowa | Fair | 1980 | 111.3 m | 2,270 |
| CHARITON RIVER | Iowa | Good | 1988 | 71.3 m | 2,270 |
| WESTFIELD CREEK | Iowa | Good | 1976 | 52.1 m | 2,270 |
| FROG CREEK | Iowa | Good | 2018 | 9.6 m | 2,269 |
| SHELL ROCK RIVER | Iowa | Good | 2013 | 62.5 m | 2,268 |
| CHICAGO CENTRAL RAILROAD | Iowa | Good | 2016 | 103.4 m | 2,268 |
| I-35 | Iowa | Fair | 1958 | 61.6 m | 2,262 |
| LITTLE BEAVER CREEK | Iowa | Good | 1961 | 12.2 m | 2,260 |
| BEAVER CREEK | Iowa | Fair | 1990 | 52.1 m | 2,260 |
| STREAM | Iowa | Good | 1979 | 6.4 m | 2,260 |
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.