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 |
|---|---|---|---|---|---|
| BRUSHY CREEK | Iowa | Good | 1986 | 36.0 m | 4,900 |
| SOUTH SKUNK RIVER | Iowa | Fair | 2000 | 106.1 m | 4,900 |
| BRUSHY CREEK | Iowa | Good | 1986 | 36.0 m | 4,900 |
| ROBERTS CREEK | Iowa | Good | 1979 | 82.6 m | 4,900 |
| S BEAVER CREEK | Iowa | Good | 2003 | 53.0 m | 4,900 |
| D 35 (ELM ST) | Iowa | Fair | 2003 | 56.1 m | 4,900 |
| W FORK DES MOINES RIVER | Iowa | Good | 1965 | 74.4 m | 4,890 |
| OVER BNSF RR | Iowa | Fair | 1971 | 88.1 m | 4,890 |
| OLD MANS CREEK | Iowa | Good | 2020 | 92.0 m | 4,890 |
| STREAM | Iowa | Good | 2020 | 7.6 m | 4,890 |
| US 218 | Iowa | Good | 2001 | 116.1 m | 4,890 |
| STORM LAKE INLET | Iowa | Good | 1978 | 16.5 m | 4,890 |
| TWELVE MILE CREEK | Iowa | Fair | 1971 | 52.1 m | 4,890 |
| TWELVE MILE CREEK | Iowa | Fair | 1971 | 6.4 m | 4,890 |
| OLD MANS CRK E OVERFLOW | Iowa | Good | 2020 | 11.4 m | 4,890 |
| OLD WOMANS CREEK | Iowa | Good | 2020 | 42.4 m | 4,890 |
| OLD MANS CRK E OVRFLW | Iowa | Good | 2020 | 11.4 m | 4,890 |
| BR. EAST PLATTE RIVER | Iowa | Fair | 1971 | 8.8 m | 4,890 |
| SKUNK RIVER | Iowa | Good | 2007 | 84.4 m | 4,878 |
| COLLEGE CREEK | Iowa | Good | 1973 | 7.6 m | 4,878 |
| I-29 | Iowa | Fair | 2003 | 65.2 m | 4,878 |
| SMALL STREAM | Iowa | Good | 2000 | 16.5 m | 4,875 |
| ODEBOLT CREEK | Iowa | Good | 2022 | 54.6 m | 4,873 |
| STREAM | Iowa | Fair | 1976 | 10.1 m | 4,870 |
| 4TH ST & RR | Iowa | Fair | 1974 | 98.8 m | 4,860 |
| MAD CREEK | Iowa | Fair | 1957 | 20.4 m | 4,858 |
| RALSTON CREEK N. BRANCH | Iowa | Good | 2003 | 7.9 m | 4,858 |
| US 20 | Iowa | Good | 1984 | 81.4 m | 4,855 |
| I-380 | Iowa | Fair | 1980 | 115.8 m | 4,855 |
| SOUTH FISH CREEK | Iowa | Fair | 1964 | 68.3 m | 4,850 |
| UNNAMED STREAM | Iowa | Good | 2017 | 7.6 m | 4,850 |
| SKUNK RIVER | Iowa | Good | 2019 | 190.2 m | 4,850 |
| NORTH FISH CREEK | Iowa | Fair | 1963 | 50.6 m | 4,850 |
| BIG CREEK | Iowa | Fair | 1963 | 61.0 m | 4,850 |
| KEIGLEY BRANCH | Iowa | Good | 2016 | 36.9 m | 4,850 |
| BEAVER CREEK | Iowa | Good | 2003 | 40.8 m | 4,850 |
| BRANCH PLUM CREEK | Iowa | Good | 1981 | 48.5 m | 4,850 |
| BEAVER CREEK | Iowa | Good | 2003 | 40.8 m | 4,850 |
| IA 64 | Iowa | Good | 2001 | 61.9 m | 4,850 |
| BRANCH PLUM CREEK | Iowa | Fair | 1963 | 48.2 m | 4,850 |
| OVRFLW AVE SAINTS LAKE | Iowa | Good | 1996 | 56.1 m | 4,850 |
| STREAM | Iowa | Good | 1980 | 7.6 m | 4,840 |
| BRANCH MAQUOKETA RIVER | Iowa | Fair | 1975 | 7.9 m | 4,840 |
| BRANCH MAQUOKETA RIVER | Iowa | Fair | 1975 | 6.7 m | 4,840 |
| STREAM | Iowa | Good | 1975 | 7.0 m | 4,840 |
| UNNAMED CREEK | Iowa | Good | 1974 | 7.9 m | 4,840 |
| UNNAMED CREEK | Iowa | Good | 1975 | 11.9 m | 4,840 |
| CLEAR CREEK | Iowa | Good | 2021 | 76.8 m | 4,830 |
| US 218 | Iowa | Good | 2012 | 85.4 m | 4,815 |
| PASCALS CREEK | Iowa | Good | 1976 | 13.1 m | 4,810 |
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.