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-80 | Iowa | Fair | 1964 | 67.7 m | 837 |
| WEST TARKIO RIVER | Iowa | Good | 2021 | 34.4 m | 837 |
| NICHOLSON CREEK | Iowa | Poor | 1960 | 22.9 m | 836 |
| HONEY CREEK | Iowa | Fair | 1980 | 62.2 m | 835 |
| MAQUOKETA RIVER | Iowa | Fair | 1969 | 69.8 m | 835 |
| STREAM | Iowa | Good | 2005 | 39.0 m | 835 |
| PRAIRIE CREEK | Iowa | Poor | 1969 | 24.1 m | 835 |
| OTTER CREEK | Iowa | Fair | 2002 | 7.9 m | 833 |
| DRAINAGE DITCH | Iowa | Good | 2000 | 13.1 m | 832 |
| MISSISSIPPI SLOUGH | Iowa | Poor | 1957 | 9.4 m | 832 |
| I-29 | Iowa | Fair | 1972 | 101.8 m | 830 |
| EAST WILLOW RIVER | Iowa | Good | 1996 | 91.7 m | 830 |
| IA 163-MONROE BYPASS | Iowa | Good | 1997 | 69.9 m | 830 |
| BUTCHER CREEK | Iowa | Poor | 1952 | 19.5 m | 830 |
| BRANCH TROUBLESOME CREEK | Iowa | Good | 1967 | 9.8 m | 830 |
| LITTLE CEDAR CREEK | Iowa | Fair | 1966 | 35.1 m | 830 |
| LITTLE CEDAR CREEK | Iowa | Good | 1989 | 7.6 m | 830 |
| ELLIOT CREEK | Iowa | Good | 1954 | 8.8 m | 830 |
| UPPER IOWA RIVER | Iowa | Good | 1983 | 102.1 m | 830 |
| DAVID`S CREEK | Iowa | Fair | 1972 | 39.0 m | 830 |
| EAST NISHNABOTNA RIVER | Iowa | Fair | 1976 | 61.0 m | 830 |
| BLUEGRASS CREEK | Iowa | Fair | 1959 | 56.1 m | 830 |
| DRAINAGE DITCH | Iowa | Fair | 1988 | 40.8 m | 830 |
| US 218 | Iowa | Good | 2001 | 85.0 m | 830 |
| NORTH SKUNK RIVER | Iowa | Good | 1988 | 116.4 m | 830 |
| WILLOW CREEK | Iowa | Fair | 1994 | 52.4 m | 829 |
| OCHEYEDON RIVER | Iowa | Fair | 1976 | 39.0 m | 828 |
| I-35 | Iowa | Fair | 1972 | 89.0 m | 828 |
| DD NO 57 | Iowa | Fair | 1974 | 23.8 m | 828 |
| RUSH LAKE OUTLET | Iowa | Fair | 1984 | 9.8 m | 828 |
| ROETZEL CREEK | Iowa | Good | 2006 | 6.7 m | 828 |
| WILLOW CREEK | Iowa | Fair | 1972 | 9.8 m | 828 |
| W BRANCH IOWA RIVER | Iowa | Poor | 1948 | 28.0 m | 828 |
| DRAINAGE DITCH NO. 22 | Iowa | Fair | 1970 | 38.1 m | 828 |
| MILL CREEK | Iowa | Good | 2000 | 50.3 m | 828 |
| JONES CREEK | Iowa | Fair | 1990 | 39.0 m | 826 |
| SANDHAGEN CREEK | Iowa | Poor | 1965 | 23.8 m | 825 |
| SMALL STREAM | Iowa | Fair | 1970 | 6.7 m | 825 |
| HARTER CREEK | Iowa | Fair | 1964 | 23.5 m | 825 |
| MINK CREEK | Iowa | Poor | 1957 | 46.7 m | 825 |
| ORANGE CITY SLOUGH | Iowa | Good | 2002 | 34.4 m | 823 |
| US 34 | Iowa | Fair | 1970 | 70.7 m | 823 |
| FOUR MILE CREEK | Iowa | Fair | 1999 | 54.0 m | 820 |
| EAST NODAWAY RIVER | Iowa | Good | 2012 | 59.7 m | 820 |
| GRAND RIVER | Iowa | Fair | 2011 | 113.4 m | 820 |
| LITTLE FOX CREEK | Iowa | Fair | 1985 | 44.5 m | 820 |
| SO LITTLE FOX CREEK | Iowa | Fair | 1985 | 15.9 m | 820 |
| LITTLE RIVER | Iowa | Fair | 1953 | 98.8 m | 820 |
| OVER IAIS RR | Iowa | Good | 1993 | 44.5 m | 820 |
| PRICES CREEK | Iowa | Fair | 1977 | 33.5 m | 820 |
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.