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 |
|---|---|---|---|---|---|
| BUFFALO CREEK | Iowa | Fair | 1973 | 7.6 m | 350 |
| N OIERSON CREEK | Iowa | Fair | 1974 | 15.2 m | 350 |
| SMALL CREEK | Iowa | Fair | 1978 | 11.6 m | 350 |
| LITTLE OCHEYEDAN RIVER | Iowa | Fair | 1986 | 39.0 m | 350 |
| MIDDLE MAQUOKETA RIVER | Iowa | Fair | 1974 | 47.2 m | 350 |
| BLOOD RUN CREEK | Iowa | Fair | 1971 | 39.0 m | 350 |
| LOTTS CREEK | Iowa | Good | 1996 | 39.0 m | 350 |
| LITTLE SIOUX RIVER | Iowa | Fair | 1981 | 126.5 m | 350 |
| CREEK | Iowa | Poor | 1971 | 6.7 m | 350 |
| SOLDIER RIVER | Iowa | Poor | 1971 | 35.4 m | 350 |
| SOLDIER RIVER | Iowa | Poor | 1955 | 92.7 m | 349 |
| BRANCH NODAWAY RIVER | Iowa | Fair | 2008 | 30.5 m | 349 |
| SMALL STREAM | Iowa | Good | 2020 | 6.4 m | 349 |
| E BIG CREEK | Iowa | Fair | 1973 | 31.4 m | 349 |
| SOUTH RIVER | Iowa | Poor | 1936 | 46.6 m | 349 |
| BROWN BRANCH | Iowa | Poor | 1965 | 31.4 m | 349 |
| NISHNABOTNA RIVER | Iowa | Good | 1986 | 98.5 m | 349 |
| BUCK CREEK | Iowa | Fair | 1962 | 38.7 m | 349 |
| GRIFFIN CREEK | Iowa | Fair | 1962 | 30.8 m | 349 |
| BRANCH OF NODAWAY RVR | Iowa | Good | 2013 | 6.3 m | 349 |
| SMALL STREAM | Iowa | Fair | 1962 | 7.3 m | 349 |
| EAST 102 RIVER | Iowa | Fair | 1940 | 46.6 m | 349 |
| SMALL STREAM | Iowa | Good | 1987 | 9.1 m | 349 |
| ORNERY CREEK | Iowa | Fair | 1956 | 44.5 m | 349 |
| DRAINAGE | Iowa | Poor | 1940 | 7.3 m | 349 |
| SMALL STREAM | Iowa | Fair | 1992 | 6.4 m | 349 |
| BRANCH OF SILVER CREEK | Iowa | Fair | 1961 | 31.4 m | 349 |
| SILVER CREEK | Iowa | Good | 2016 | 46.9 m | 349 |
| DRAINAGE | Iowa | Fair | 1993 | 7.9 m | 349 |
| NISHNABOTNA RIVER | Iowa | Good | 2020 | 97.5 m | 349 |
| MOSQUITO CREEK | Iowa | Fair | 1963 | 31.4 m | 349 |
| SMALL STREAM | Iowa | Good | 2013 | 6.4 m | 349 |
| MINNOW CREEK | Iowa | Poor | 1900 | 6.4 m | 349 |
| STREAM | Iowa | Poor | 1968 | 13.4 m | 349 |
| SMALL STREAM | Iowa | Poor | 1920 | 7.0 m | 349 |
| LONG BRANCH | Iowa | Fair | 1974 | 12.5 m | 349 |
| SMALL STREAM | Iowa | Poor | 1900 | 18.3 m | 346 |
| DAVIDS CREEK | Iowa | Fair | 1995 | 43.9 m | 346 |
| DEER CREEK TRIBUTARY | Iowa | Good | 2015 | 9.8 m | 345 |
| DEEP CREEK | Iowa | Good | 1998 | 31.4 m | 345 |
| BARNES CREEK | Iowa | Good | 1993 | 27.6 m | 345 |
| BRANCH SALT CREEK | Iowa | Poor | 1996 | 17.4 m | 344 |
| COLD WATER CREEK | Iowa | Good | 2016 | 12.1 m | 344 |
| SMALL STREAM | Iowa | Fair | 1959 | 7.9 m | 344 |
| PANTHER CR | Iowa | Fair | 1968 | 30.5 m | 344 |
| W BR PINE CREEK | Iowa | Fair | 1977 | 31.4 m | 344 |
| SMALL STREAM | Iowa | Good | 2004 | 26.5 m | 344 |
| SMALL STREAM | Iowa | Fair | 1950 | 7.9 m | 344 |
| WAPSIPINICON RIVER | Iowa | Fair | 1954 | 92.4 m | 344 |
| SMALL NATURAL STREAM | Iowa | Fair | 1954 | 8.2 m | 344 |
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.