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 |
|---|---|---|---|---|---|
| DRAINAGE DITCH | Iowa | Fair | 1967 | 31.4 m | 6,100 |
| WILLOW CREEK | Iowa | Fair | 1971 | 6.4 m | 6,100 |
| US 20 | Iowa | Fair | 1978 | 88.1 m | 6,100 |
| PLUM CREEK | Iowa | Good | 2009 | 73.8 m | 6,100 |
| SOUTH RACCOON RIVER | Iowa | Good | 2015 | 118.6 m | 6,100 |
| MELONE CREEK | Iowa | Good | 2019 | 40.7 m | 6,094 |
| S DRY RUN | Iowa | Poor | 1968 | 12.8 m | 6,093 |
| HORSE CREEK | Iowa | Fair | 1972 | 31.4 m | 6,050 |
| HORSE CREEK | Iowa | Fair | 1972 | 31.4 m | 6,050 |
| W.BRANCH INDIAN CREEK | Iowa | Fair | 1963 | 59.7 m | 6,050 |
| SINK CREEK | Iowa | Good | 1983 | 54.0 m | 6,050 |
| BIG CREEK | Iowa | Good | 2000 | 50.0 m | 6,050 |
| SMALL STREAM | Iowa | Good | 2003 | 9.8 m | 6,038 |
| OVER RR | Iowa | Poor | 1984 | 77.7 m | 6,031 |
| DES MOINES RIVER | Iowa | Good | 2020 | 136.9 m | 6,029 |
| 155TH ST | Iowa | Good | 2009 | 46.6 m | 6,000 |
| OVER BNSF RR | Iowa | Fair | 1966 | 108.2 m | 6,000 |
| UNNAMED STREAM | Iowa | Good | 2014 | 7.6 m | 6,000 |
| US 20 | Iowa | Good | 2019 | 200.9 m | 6,000 |
| I 280 WB | Iowa | Fair | 1960 | 61.0 m | 6,000 |
| STREAM | Iowa | Good | 2001 | 28.3 m | 6,000 |
| SILVER CREEK | Iowa | Good | 1965 | 59.9 m | 6,000 |
| MIDDLE RACCOON RIVER | Iowa | Fair | 1982 | 45.7 m | 6,000 |
| CROW CREEK | Iowa | Fair | 2003 | 52.9 m | 6,000 |
| MILL CREEK | Iowa | Fair | 1985 | 28.3 m | 6,000 |
| IA 64 | Iowa | Good | 2001 | 61.9 m | 6,000 |
| CALAMUS CREEK | Iowa | Fair | 1970 | 14.0 m | 6,000 |
| EB I-80 | Iowa | Fair | 1960 | 73.2 m | 6,000 |
| IOWA RIVER | Iowa | Good | 2009 | 120.7 m | 6,000 |
| 155TH ST | Iowa | Good | 2009 | 46.6 m | 6,000 |
| DRY RUN CREEK | Iowa | Good | 1990 | 10.1 m | 5,994 |
| TRIB LITTLE BEAVER CREEK | Iowa | Good | 2006 | 6.4 m | 5,988 |
| I-80 & US 6 | Iowa | Good | 2006 | 95.1 m | 5,975 |
| US 30 & W 11TH ST | Iowa | Fair | 1970 | 78.3 m | 5,950 |
| IOWA RIVER EAST OVERFLOW | Iowa | Good | 2021 | 46.6 m | 5,950 |
| IOWA RIVER | Iowa | Good | 2002 | 165.8 m | 5,950 |
| INDIAN CREEK CONDUIT | Iowa | Fair | 1983 | 13.1 m | 5,933 |
| E FORK DES MOINES RIVER | Iowa | Good | 1984 | 100.6 m | 5,900 |
| NORTH RIVER | Iowa | Fair | 1983 | 72.5 m | 5,900 |
| NORTH CHEQUEST CREEK | Iowa | Fair | 1963 | 6.4 m | 5,900 |
| DRAINAGE DITCH | Iowa | Fair | 1952 | 7.6 m | 5,900 |
| OVER CC RR | Iowa | Fair | 1969 | 70.4 m | 5,900 |
| BOYER RVR & CC RR & ROAD | Iowa | Fair | 1973 | 238.4 m | 5,900 |
| BNSF RR | Iowa | Fair | 1973 | 52.1 m | 5,900 |
| BNSF RR | Iowa | Fair | 1973 | 52.1 m | 5,900 |
| DRAINAGE DITCH NO 1 & 54 | Iowa | Good | 2010 | 10.7 m | 5,900 |
| W FORK CAMP CREEK | Iowa | Good | 2010 | 8.2 m | 5,900 |
| EAST BEAVER CREEK | Iowa | Good | 1962 | 6.4 m | 5,900 |
| CEDAR CREEK | Iowa | Good | 1990 | 48.5 m | 5,900 |
| SOUTH LONG CREEK | Iowa | Fair | 1967 | 40.5 m | 5,900 |
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.