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 |
|---|---|---|---|---|---|
| CROW CREEK | Iowa | Good | 1992 | 9.1 m | 490 |
| ENGLISH RIVER | Iowa | Fair | 1971 | 68.6 m | 490 |
| DRAINAGE DITCH | Iowa | Fair | 1954 | 7.6 m | 490 |
| DRAINAGE DITCH | Iowa | Fair | 1954 | 6.4 m | 490 |
| LYONS CREEK | Iowa | Poor | 1947 | 13.7 m | 490 |
| BROKEN KETTLE CREEK | Iowa | Fair | 1979 | 61.9 m | 490 |
| SM STREAM | Iowa | Poor | 1950 | 7.3 m | 490 |
| BR RAPID CR | Iowa | Good | 2019 | 17.7 m | 490 |
| STREAM | Iowa | Fair | 1900 | 7.6 m | 490 |
| W FORK DES MOINES RIVER | Iowa | Good | 2014 | 75.3 m | 490 |
| BR RAPID CR | Iowa | Poor | 1950 | 13.4 m | 490 |
| EAST FORK CROOKED CREEK | Iowa | Good | 1990 | 75.0 m | 490 |
| DRY RUN CREEK | Iowa | Fair | 1959 | 44.2 m | 490 |
| OTTER CREEK | Iowa | Good | 1992 | 31.1 m | 490 |
| DRAINAGE DITCH | Iowa | Good | 1962 | 6.4 m | 490 |
| LITTLE FLOYD RIVER | Iowa | Good | 1992 | 27.7 m | 489 |
| FLOYD RIVER | Iowa | Good | 1986 | 41.1 m | 489 |
| BROKEN KETTLE CREEK | Iowa | Good | 1976 | 61.0 m | 489 |
| DD 34 LAT #2 | Iowa | Poor | 1979 | 8.2 m | 489 |
| DRAINAGE DITCH NO 3 | Iowa | Fair | 1976 | 23.8 m | 489 |
| PRAIRIE CREEK | Iowa | Good | 2002 | 39.0 m | 489 |
| E FORK DES MOINES RIVER | Iowa | Good | 2021 | 43.0 m | 489 |
| BOYER RIVER | Iowa | Fair | 1950 | 64.0 m | 489 |
| NORTH LIZARD CREEK | Iowa | Fair | 1960 | 53.3 m | 489 |
| BEAR CREEK | Iowa | Good | 2017 | 11.6 m | 489 |
| PRAIRIE CREEK | Iowa | Fair | 1971 | 39.0 m | 489 |
| EAST 102 RIVER | Iowa | Fair | 1993 | 46.0 m | 488 |
| W FORK NISNABOTNA RIVER | Iowa | Good | 2012 | 92.7 m | 488 |
| HANFORD CREEK | Iowa | Good | 2000 | 12.8 m | 488 |
| OVER UPRR | Iowa | Fair | 1980 | 39.9 m | 488 |
| BEAVER CREEK | Iowa | Fair | 1962 | 38.7 m | 488 |
| PORTER CREEK | Iowa | Fair | 1970 | 31.1 m | 488 |
| W FORK W.NISHNABOTNA RIV | Iowa | Fair | 1978 | 70.1 m | 488 |
| STREAM | Iowa | Good | 2007 | 7.6 m | 481 |
| JOHNS CREEK | Iowa | Good | 2013 | 30.5 m | 481 |
| PRAIRIE CREEK | Iowa | Good | 2018 | 27.4 m | 481 |
| PLAQUE MINE CREEK | Iowa | Poor | 1970 | 7.9 m | 481 |
| LITTLE SOAP CREEK | Iowa | Good | 2004 | 42.1 m | 480 |
| LIZARD CREEK | Iowa | Good | 2011 | 6.4 m | 480 |
| ROCK CREEK | Iowa | Good | 2016 | 30.8 m | 480 |
| STREAM | Iowa | Poor | 1966 | 30.8 m | 480 |
| SHELLROCK RIVER | Iowa | Fair | 1986 | 46.6 m | 480 |
| SMALL STREAM | Iowa | Fair | 1980 | 6.1 m | 480 |
| SMALL STREAM | Iowa | Good | 2002 | 57.6 m | 480 |
| STREAM | Iowa | Good | 2002 | 7.0 m | 480 |
| SMALL STREAM | Iowa | Fair | 2002 | 7.6 m | 480 |
| OLD WOMANS CR | Iowa | Good | 2005 | 6.7 m | 480 |
| SOUTH ENGLISH RIVER | Iowa | Poor | 1964 | 23.5 m | 480 |
| S WYACONDAH DITCH | Iowa | Poor | 1968 | 46.0 m | 480 |
| GRANGER CREEK | Iowa | Fair | 1975 | 27.7 m | 480 |
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.