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 |
|---|---|---|---|---|---|
| PASCALS CREEK | Iowa | Good | 1976 | 13.1 m | 4,810 |
| SKUNK RIVER | Iowa | Fair | 1972 | 106.4 m | 4,800 |
| NATURAL CREEK | Iowa | Good | 1929 | 12.2 m | 4,790 |
| I-235 | Iowa | Good | 2005 | 83.8 m | 4,783 |
| HOCKING CREEK | Iowa | Good | 1973 | 37.8 m | 4,780 |
| PRAIRIE CREEK | Iowa | Good | 2017 | 30.7 m | 4,770 |
| N. BLACKHAWK CREEK | Iowa | Good | 2006 | 28.3 m | 4,770 |
| I-380 | Iowa | Fair | 1982 | 81.7 m | 4,760 |
| NORTH RACCOON RIVER | Iowa | Fair | 1972 | 154.2 m | 4,760 |
| TURKEY RIVER | Iowa | Fair | 1889 | 57.6 m | 4,755 |
| CREEK | Iowa | Fair | 1956 | 6.4 m | 4,750 |
| SOUTH STATE ST | Iowa | Good | 1997 | 49.6 m | 4,750 |
| EAST INDIAN CREEK | Iowa | Good | 1997 | 94.2 m | 4,750 |
| MUD CREEK | Iowa | Fair | 2000 | 22.9 m | 4,750 |
| WILLOW CREEK ROAD | Iowa | Good | 2018 | 54.7 m | 4,750 |
| SOUTH STATE ST | Iowa | Good | 1997 | 49.7 m | 4,750 |
| IA 137 | Iowa | Good | 2004 | 61.3 m | 4,750 |
| WHITEWATER CREEK | Iowa | Good | 2003 | 69.5 m | 4,750 |
| MUD CREEK | Iowa | Fair | 1998 | 34.4 m | 4,750 |
| MUD CREEK | Iowa | Good | 2002 | 90.5 m | 4,750 |
| IND PARK ROAD | Iowa | Good | 2002 | 50.0 m | 4,750 |
| UNNAMED CREEK | Iowa | Fair | 1988 | 13.4 m | 4,730 |
| POWELL CREEK | Iowa | Fair | 1992 | 12.2 m | 4,720 |
| N RACCOON RIVER OVERFLOW | Iowa | Fair | 1994 | 57.3 m | 4,720 |
| YEADER CREEK | Iowa | Poor | 1976 | 35.4 m | 4,717 |
| ROCK CREEK | Iowa | Good | 2007 | 42.1 m | 4,709 |
| I 29 | Iowa | Good | 2014 | 105.8 m | 4,700 |
| BNSF RR | Iowa | Good | 2003 | 68.0 m | 4,700 |
| BNSF RR | Iowa | Good | 2003 | 68.3 m | 4,700 |
| AMES CREEK | Iowa | Fair | 1974 | 48.8 m | 4,700 |
| I 29 | Iowa | Good | 2014 | 105.8 m | 4,700 |
| COMSTOCK CREEK | Iowa | Good | 1997 | 25.3 m | 4,700 |
| AMES CREEK | Iowa | Fair | 1974 | 48.8 m | 4,700 |
| EAST INDIAN CREEK | Iowa | Fair | 1963 | 93.3 m | 4,700 |
| UP RR | Iowa | Fair | 1974 | 117.7 m | 4,700 |
| WILLOW CREEK ROAD | Iowa | Good | 2019 | 54.6 m | 4,700 |
| MT. PLEASANT AVE | Iowa | Good | 2001 | 68.6 m | 4,700 |
| I-35 | Iowa | Fair | 1968 | 79.6 m | 4,700 |
| OVER CC RR & CATFISH CK | Iowa | Good | 1997 | 91.1 m | 4,696 |
| RALSTON CREEK | Iowa | Poor | 1935 | 18.9 m | 4,693 |
| SPRING CREEK | Iowa | Good | 2009 | 57.3 m | 4,690 |
| BLAKE CREEK | Iowa | Fair | 1955 | 9.4 m | 4,690 |
| BLAKE CREEK | Iowa | Fair | 1955 | 14.5 m | 4,690 |
| OVER IAIS RR | Iowa | Poor | 1970 | 59.1 m | 4,688 |
| DEER CREEK | Iowa | Fair | 1958 | 44.2 m | 4,680 |
| BASS CREEK | Iowa | Poor | 1958 | 34.1 m | 4,680 |
| JENSEN CREEK | Iowa | Fair | 1968 | 7.9 m | 4,680 |
| I-80 | Iowa | Fair | 1963 | 66.4 m | 4,676 |
| I-235 EB RAMP | Iowa | Fair | 2005 | 94.8 m | 4,670 |
| DRAINAGE DITCH | Iowa | Fair | 1958 | 7.6 m | 4,670 |
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.