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 |
|---|---|---|---|---|---|
| ASH AVE | Iowa | Good | 2006 | 45.4 m | 3,650 |
| SUGAR CREEK | Iowa | Good | 2002 | 52.9 m | 3,650 |
| VACANT LOTS | Iowa | Good | 1991 | 176.8 m | 3,650 |
| DES MOINES RIVER | Iowa | Fair | 2002 | 276.5 m | 3,650 |
| S 6TH AVE | Iowa | Fair | 1970 | 53.6 m | 3,650 |
| 295TH ST AND BNSF RR | Iowa | Good | 2001 | 86.9 m | 3,650 |
| RALSTON CREEK | Iowa | Fair | 1953 | 17.1 m | 3,650 |
| STREAM | Iowa | Fair | 1959 | 7.6 m | 3,640 |
| IOWAY CREEK | Iowa | Fair | 1982 | 62.2 m | 3,640 |
| NORTH RACCOON RIVER | Iowa | Fair | 1976 | 129.5 m | 3,640 |
| TRIB. TO SUGAR CREEK | Iowa | Fair | 2000 | 7.6 m | 3,636 |
| MIDDLE FORK CATFISH CRK | Iowa | Fair | 1949 | 9.1 m | 3,632 |
| DRAINAGE DITCH | Iowa | Fair | 1971 | 7.9 m | 3,630 |
| KITTY CREEK | Iowa | Fair | 1973 | 48.2 m | 3,630 |
| I 35 & I 80 | Iowa | Good | 2017 | 91.7 m | 3,615 |
| LITTLE WALNUT CREEK | Iowa | Fair | 1975 | 7.9 m | 3,612 |
| STREAM | Iowa | Good | 1900 | 7.6 m | 3,610 |
| DRAINAGE DITCH | Iowa | Fair | 1972 | 11.6 m | 3,610 |
| W FORK FLOYD RIVER | Iowa | Fair | 1972 | 72.5 m | 3,610 |
| BEAR CREEK | Iowa | Good | 2012 | 43.6 m | 3,610 |
| ORANGE CITY SLOUGH | Iowa | Fair | 1973 | 9.9 m | 3,610 |
| W FORK FLOYD RIVER | Iowa | Fair | 1972 | 72.5 m | 3,610 |
| ANSON CREEK | Iowa | Fair | 1976 | 11.9 m | 3,603 |
| IA 3 | Iowa | Good | 1996 | 61.3 m | 3,600 |
| IA 14 | Iowa | Good | 1995 | 82.9 m | 3,600 |
| DES MOINES RIVER | Iowa | Fair | 2002 | 276.5 m | 3,600 |
| US 52 SB | Iowa | Good | 1987 | 59.7 m | 3,600 |
| US 52 SB | Iowa | Good | 1987 | 59.7 m | 3,600 |
| 295TH ST AND BNSF RR | Iowa | Fair | 2001 | 90.5 m | 3,600 |
| SUGAR CREEK | Iowa | Fair | 1989 | 53.3 m | 3,600 |
| US 30 (E.JCT) | Iowa | Fair | 1965 | 72.8 m | 3,600 |
| EAST INDIAN CREEK | Iowa | Good | 1987 | 31.4 m | 3,600 |
| EAST INDIAN CREEK | Iowa | Fair | 1973 | 31.4 m | 3,600 |
| OVER CC RR | Iowa | Good | 1973 | 62.5 m | 3,600 |
| OVER CC RR | Iowa | Fair | 1973 | 62.2 m | 3,600 |
| US 20 | Iowa | Good | 1996 | 47.9 m | 3,596 |
| DRAINAGE DITCH | Iowa | Good | 1969 | 8.3 m | 3,596 |
| US 30 & US 218 | Iowa | Good | 1985 | 86.0 m | 3,596 |
| DRY RUN CREEK | Iowa | Fair | 1968 | 7.6 m | 3,587 |
| UP RR & LYNN CK | Iowa | Poor | 1971 | 216.4 m | 3,584 |
| EAST NODAWAY RIVER | Iowa | Fair | 1976 | 64.9 m | 3,580 |
| OVER BNSF RR | Iowa | Good | 1976 | 59.7 m | 3,580 |
| BLOODY RUN CREEK | Iowa | Good | 1994 | 54.9 m | 3,580 |
| WALNUT CREEK | Iowa | Fair | 1988 | 76.5 m | 3,579 |
| ELK RUN CREEK | Iowa | Fair | 1971 | 53.6 m | 3,574 |
| WALNUT CREEK | Iowa | Fair | 1925 | 15.2 m | 3,570 |
| US 30 | Iowa | Fair | 1971 | 79.6 m | 3,570 |
| IAIS RR | Iowa | Fair | 1923 | 62.5 m | 3,562 |
| OVER BNSF RR | Iowa | Fair | 1974 | 66.1 m | 3,560 |
| SMALL STREAM | Iowa | Fair | 1960 | 6.4 m | 3,550 |
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.