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 |
|---|---|---|---|---|---|
| STREAM | Iowa | Fair | 1959 | 7.0 m | 3,480 |
| OLD FLOYD RIVER CHANNEL | Iowa | Good | 1997 | 96.3 m | 3,475 |
| WEST DES MOINES RIVER | Iowa | Good | 2015 | 81.0 m | 3,472 |
| LITTLE SILVER CREEK | Iowa | Good | 1989 | 39.3 m | 3,470 |
| KEG CREEK | Iowa | Good | 2011 | 64.1 m | 3,470 |
| CHARITON RIVER | Iowa | Fair | 1963 | 125.9 m | 3,470 |
| DRAINAGE DITCH #96 | Iowa | Fair | 1973 | 28.3 m | 3,470 |
| CEDAR RIVER | Iowa | Poor | 1979 | 208.8 m | 3,461 |
| IOWA RIVER | Iowa | Fair | 1978 | 202.7 m | 3,460 |
| BRANCH MOSQUITO CREEK | Iowa | Fair | 1981 | 6.4 m | 3,460 |
| BAYS BRANCH CREEK | Iowa | Good | 1981 | 34.4 m | 3,460 |
| BOONE RIVER | Iowa | Fair | 1972 | 99.4 m | 3,460 |
| E FORK DES MOINES RIVER | Iowa | Fair | 1971 | 75.0 m | 3,460 |
| IA 12 & VIRGINIA ST | Iowa | Good | 2017 | 175.6 m | 3,460 |
| OVER UP RR(ABAND) | Iowa | Fair | 1971 | 56.1 m | 3,450 |
| STREAM | Iowa | Fair | 1972 | 37.5 m | 3,450 |
| PRAIRIE CREEK | Iowa | Good | 2024 | 31.4 m | 3,450 |
| GRAND RIVER | Iowa | Fair | 1971 | 70.1 m | 3,450 |
| SUGAR CREEK | Iowa | Fair | 2007 | 121.3 m | 3,450 |
| EAGLE CREEK | Iowa | Fair | 1932 | 13.1 m | 3,450 |
| LITTLE EAGLE CREEK | Iowa | Good | 2016 | 6.8 m | 3,450 |
| FLOYD RIVER TRIBUTARY | Iowa | Fair | 2003 | 28.0 m | 3,450 |
| US 34 | Iowa | Fair | 2001 | 81.7 m | 3,450 |
| CC RR | Iowa | Good | 2011 | 86.6 m | 3,450 |
| CC RR | Iowa | Good | 2010 | 86.6 m | 3,450 |
| IAIS RR | Iowa | Good | 1981 | 46.0 m | 3,444 |
| RAMP H | Iowa | Fair | 1984 | 77.4 m | 3,440 |
| SO BRANCH TURKEY RIVER | Iowa | Fair | 1974 | 11.6 m | 3,440 |
| SHELL ROCK RIVER | Iowa | Fair | 1915 | 81.1 m | 3,435 |
| US 218 | Iowa | Good | 2001 | 116.7 m | 3,430 |
| OVER BNSF RR | Iowa | Fair | 1967 | 108.5 m | 3,430 |
| WAPSIPINICON RIVER | Iowa | Fair | 1955 | 146.3 m | 3,430 |
| E CHAN WAPSIPINICON RVR | Iowa | Fair | 1955 | 82.3 m | 3,430 |
| CALAMUS DRAINAGE DITCH | Iowa | Fair | 1955 | 56.1 m | 3,430 |
| OVER ABANDON RR & STREAM | Iowa | Fair | 1952 | 77.1 m | 3,430 |
| WINNEBAGO RIVER | Iowa | Fair | 1962 | 66.4 m | 3,427 |
| W BRANCH WAPSINONOC CRK | Iowa | Good | 1989 | 21.3 m | 3,410 |
| FORK LITTLE SIOUX RIVER | Iowa | Fair | 1979 | 31.4 m | 3,410 |
| DRAINAGE DITCH #25 | Iowa | Fair | 1976 | 22.3 m | 3,410 |
| INDIAN CREEK | Iowa | Fair | 1992 | 31.4 m | 3,410 |
| LITTLE INDIAN CREEK | Iowa | Fair | 1977 | 25.3 m | 3,410 |
| STREAM | Iowa | Fair | 1972 | 37.5 m | 3,410 |
| BLACK HAWK CREEK | Iowa | Fair | 1955 | 98.1 m | 3,402 |
| VALLEY ST | Iowa | Good | 1990 | 45.7 m | 3,400 |
| SUGAR CREEK | Iowa | Fair | 2007 | 121.3 m | 3,400 |
| VALLEY ST | Iowa | Good | 1990 | 44.5 m | 3,400 |
| BUDD CREEK | Iowa | Good | 1974 | 35.4 m | 3,400 |
| CEDAR RIVER OVERFLOW | Iowa | Good | 1995 | 177.1 m | 3,400 |
| ABANDON RR BIKE PATH | Iowa | Fair | 1960 | 43.0 m | 3,400 |
| STREAM | Iowa | Fair | 1960 | 10.1 m | 3,400 |
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.