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 |
|---|---|---|---|---|---|
| BRANCH OF BEAR CREEK | Iowa | Good | 2009 | 28.3 m | 470 |
| S-W CONN OVER EB I-880 | Iowa | Fair | 1966 | 43.6 m | 470 |
| GRITTER CREEK | Iowa | Fair | 1969 | 31.4 m | 470 |
| MC CLURE CREEK | Iowa | Poor | 1970 | 31.1 m | 470 |
| SMALL STREAM | Iowa | Good | 2013 | 13.1 m | 470 |
| LITTLE CEDAR RIVER | Iowa | Fair | 1986 | 71.9 m | 470 |
| DRAINAGE DITCH 20 | Iowa | Good | 2012 | 16.2 m | 470 |
| WEST FORK LITTLE SIOUX | Iowa | Poor | 1963 | 62.2 m | 469 |
| DRY RUN CREEK | Iowa | Poor | 1964 | 16.8 m | 469 |
| WOLF CREEK | Iowa | Fair | 1966 | 9.1 m | 469 |
| DRAINAGE | Iowa | Good | 2004 | 8.8 m | 469 |
| DRAINAGE DITCH 107 | Iowa | Good | 2007 | 34.7 m | 469 |
| INDIAN CREEK | Iowa | Poor | 1965 | 14.0 m | 469 |
| PURGATORY CREEK | Iowa | Good | 2006 | 23.5 m | 469 |
| DRAINAGE DITCH | Iowa | Fair | 1963 | 39.0 m | 469 |
| CREEK | Iowa | Fair | 1989 | 34.4 m | 469 |
| CREEK | Iowa | Poor | 1970 | 23.8 m | 469 |
| SM STREAM | Iowa | Fair | 1974 | 6.1 m | 469 |
| SMALL | Iowa | Fair | 1988 | 10.1 m | 469 |
| HALFWAY CREEK | Iowa | Fair | 1991 | 10.7 m | 469 |
| UNNAMED CREEK | Iowa | Good | 2015 | 9.6 m | 468 |
| SEVENMILE CREEK | Iowa | Poor | 1971 | 46.9 m | 468 |
| HONEY CREEK | Iowa | Fair | 1968 | 46.9 m | 468 |
| SHANGHAR CREEK | Iowa | Fair | 1977 | 17.4 m | 468 |
| BEAMAN CREEK | Iowa | Good | 1958 | 6.4 m | 468 |
| PONY CREEK | Iowa | Good | 1931 | 16.8 m | 468 |
| BRUSH CREEK | Iowa | Good | 1993 | 7.0 m | 468 |
| EATON DITCH | Iowa | Fair | 1986 | 7.6 m | 468 |
| SMALL NATURAL STREAM | Iowa | Fair | 1947 | 12.8 m | 468 |
| BOONE RIVER | Iowa | Fair | 1986 | 20.7 m | 467 |
| CAMP CREEK | Iowa | Poor | 1950 | 24.4 m | 467 |
| STREAM | Iowa | Fair | 2004 | 9.8 m | 466 |
| CRAWFORD CREEK | Iowa | Good | 2010 | 7.3 m | 465 |
| CREEK | Iowa | Poor | 1960 | 6.1 m | 462 |
| BASKINS CREEK | Iowa | Fair | 1955 | 29.0 m | 462 |
| VILLAGE CREEK | Iowa | Fair | 1958 | 54.6 m | 462 |
| BEAR CREEK | Iowa | Fair | 1960 | 7.9 m | 462 |
| VOLGA RIVER | Iowa | Fair | 1953 | 73.2 m | 462 |
| TRIB TO MILLER CREEK | Iowa | Fair | 1977 | 7.3 m | 462 |
| SMALL STREAM | Iowa | Fair | 1979 | 6.7 m | 462 |
| BEAR CREEK | Iowa | Fair | 1994 | 31.4 m | 462 |
| RIVER BEND CREEK | Iowa | Poor | 1963 | 9.8 m | 462 |
| CREEK | Iowa | Fair | 1975 | 23.8 m | 462 |
| N FORK MAQUOKETA RIVER | Iowa | Good | 1999 | 58.5 m | 462 |
| WAPSIPINICON RIVER | Iowa | Poor | 1940 | 46.6 m | 462 |
| LIZARD CREEK DD#53 | Iowa | Fair | 1996 | 12.2 m | 462 |
| SMALL STREAM | Iowa | Fair | 1950 | 10.4 m | 462 |
| SMALL STREAM | Iowa | Good | 1998 | 7.3 m | 460 |
| EAST FORK CROOKED RIVER | Iowa | Good | 2004 | 13.4 m | 460 |
| BNSF RR | Iowa | Good | 2011 | 86.6 m | 460 |
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.