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 |
|---|---|---|---|---|---|
| INDIAN CREEK | Iowa | Fair | 1988 | 12.2 m | 3,786 |
| FOUR MILE CREEK | Iowa | Fair | 1966 | 53.6 m | 3,785 |
| NATURAL STREAM | Iowa | Good | 1967 | 90.8 m | 3,780 |
| DIVISION CREEK | Iowa | Fair | 1900 | 8.2 m | 3,776 |
| 12 MILE CREEK | Iowa | Good | 1956 | 55.9 m | 3,770 |
| DESMOINES RIVER TRIBUTAR | Iowa | Good | 1974 | 35.1 m | 3,755 |
| ENGLISH CREEK | Iowa | Fair | 1983 | 58.2 m | 3,750 |
| US 169 | Iowa | Fair | 1978 | 53.6 m | 3,750 |
| LIZARD CREEK | Iowa | Good | 1968 | 10.7 m | 3,750 |
| DES MOINES RIVER | Iowa | Fair | 1967 | 72.2 m | 3,750 |
| DRY CREEK | Iowa | Fair | 1931 | 7.0 m | 3,750 |
| DRY CREEK | Iowa | Fair | 1956 | 8.5 m | 3,750 |
| I 80 | Iowa | Fair | 1963 | 73.2 m | 3,750 |
| SAGEVILLE DRAINAGE DITCH | Iowa | Fair | 2002 | 7.6 m | 3,736 |
| STREAM | Iowa | Fair | 2000 | 12.2 m | 3,730 |
| WALNUT CREEK | Iowa | Good | 1964 | 52.1 m | 3,730 |
| BRANCH PLATTE RIVER | Iowa | Fair | 1973 | 6.7 m | 3,730 |
| DRAINAGE DITCH | Iowa | Fair | 1971 | 7.3 m | 3,730 |
| WARREN GROVE CREEK | Iowa | Fair | 1971 | 37.5 m | 3,730 |
| SOUTH SKUNK RIVER | Iowa | Fair | 1971 | 138.7 m | 3,730 |
| CHERRY CREEK | Iowa | Fair | 1974 | 40.6 m | 3,730 |
| MAPLE RIVER | Iowa | Poor | 1967 | 93.0 m | 3,720 |
| SMALL NATURAL STREAM | Iowa | Fair | 1959 | 12.5 m | 3,720 |
| ROCK CREEK | Iowa | Good | 1982 | 51.8 m | 3,710 |
| SMALL CREEK | Iowa | Poor | 1886 | 11.6 m | 3,705 |
| DEER CREEK | Iowa | Good | 2010 | 62.0 m | 3,700 |
| STREAM | Iowa | Good | 1983 | 34.4 m | 3,700 |
| US 169 | Iowa | Fair | 1978 | 53.6 m | 3,700 |
| BEAVERDALE RD-X40 | Iowa | Good | 2002 | 42.1 m | 3,700 |
| NORTH FORK LONG CREEK | Iowa | Good | 2001 | 31.4 m | 3,700 |
| BEAVERDALE RD-X40 | Iowa | Fair | 2002 | 42.1 m | 3,700 |
| STREAM | Iowa | Fair | 1956 | 7.6 m | 3,700 |
| WILLOW CREEK | Iowa | Fair | 1957 | 51.2 m | 3,696 |
| EAST NISHNABOTNA RIVER | Iowa | Fair | 1934 | 65.5 m | 3,690 |
| EAST 21ST STREET | Iowa | Good | 2006 | 27.4 m | 3,690 |
| SILVER CREEK | Iowa | Fair | 1971 | 22.9 m | 3,680 |
| DRAINAGE DITCH | Iowa | Fair | 1967 | 13.4 m | 3,674 |
| STREAM | Iowa | Fair | 1967 | 7.0 m | 3,670 |
| EAST BOYER RIVER | Iowa | Good | 1997 | 34.4 m | 3,670 |
| STREAM | Iowa | Good | 1997 | 8.8 m | 3,670 |
| STREAM | Iowa | Good | 1997 | 6.4 m | 3,670 |
| LIZARD CREEK | Iowa | Fair | 1968 | 28.3 m | 3,670 |
| CEDAR RIVER | Iowa | Fair | 1968 | 154.8 m | 3,666 |
| US 75 (LEMARS BYPASS) | Iowa | Good | 2005 | 74.7 m | 3,660 |
| CEDAR RIVER | Iowa | Good | 1987 | 294.4 m | 3,650 |
| S 6TH AVE | Iowa | Fair | 1970 | 53.6 m | 3,650 |
| KEG CREEK | Iowa | Good | 1969 | 75.0 m | 3,650 |
| VACANT LOTS | Iowa | Good | 1991 | 176.8 m | 3,650 |
| KEG CREEK | Iowa | Fair | 1969 | 75.0 m | 3,650 |
| ASH AVE | Iowa | Good | 2006 | 45.4 m | 3,650 |
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.