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 |
|---|---|---|---|---|---|
| LYON CREEK | Iowa | Fair | 1970 | 58.5 m | 3,240 |
| ST JOSEPHS CREEK | Iowa | Good | 1979 | 6.4 m | 3,240 |
| OVER BNSF RR | Iowa | Fair | 1978 | 68.9 m | 3,240 |
| OLD DES MOINES RIVER CHL | Iowa | Good | 1978 | 59.7 m | 3,240 |
| DES MOINES RIVER | Iowa | Fair | 1978 | 174.3 m | 3,240 |
| LITTLE SIOUX RIVER | Iowa | Fair | 1960 | 98.8 m | 3,230 |
| MILLER CREEK | Iowa | Fair | 1965 | 9.8 m | 3,230 |
| OVER ABANDON RR | Iowa | Fair | 1970 | 65.5 m | 3,230 |
| BLACK HAWK CREEK | Iowa | Poor | 1931 | 54.6 m | 3,230 |
| ENGLISH CREEK | Iowa | Good | 1993 | 55.8 m | 3,230 |
| BACON CREEK | Iowa | Fair | 1994 | 24.1 m | 3,223 |
| WEST PIGEON CREEK | Iowa | Good | 1996 | 8.8 m | 3,221 |
| GINGER CREEK | Iowa | Fair | 1996 | 7.0 m | 3,221 |
| RP IA 12 TO IA 376 & BNS | Iowa | Fair | 1967 | 93.3 m | 3,220 |
| PANTHER CREEK | Iowa | Good | 1981 | 28.3 m | 3,220 |
| COAL CREEK | Iowa | Fair | 1964 | 46.9 m | 3,220 |
| DRAINAGE DITCH | Iowa | Fair | 1985 | 11.3 m | 3,220 |
| BLOODY RUN CREEK | Iowa | Fair | 1985 | 31.4 m | 3,220 |
| TRULNER CREEK | Iowa | Fair | 1995 | 46.9 m | 3,220 |
| LOTTS CREEK | Iowa | Fair | 1985 | 49.7 m | 3,220 |
| BRANCH LOTTS CREEK | Iowa | Fair | 1985 | 10.7 m | 3,220 |
| BRANCH LOTTS CREEK | Iowa | Good | 1985 | 6.7 m | 3,220 |
| SOAP CREEK & BNSF RR | Iowa | Fair | 1974 | 143.6 m | 3,220 |
| U.S. 61 | Iowa | Fair | 1996 | 86.3 m | 3,211 |
| DRAINAGE DITCH | Iowa | Fair | 1957 | 12.0 m | 3,210 |
| IOWA RIVER | Iowa | Fair | 1933 | 65.8 m | 3,210 |
| I-80 | Iowa | Fair | 1960 | 66.4 m | 3,210 |
| CHESLEA CREEK | Iowa | Fair | 1962 | 12.8 m | 3,207 |
| WALNUT CREEK | Iowa | Fair | 1988 | 76.5 m | 3,203 |
| US 20 | Iowa | Good | 1984 | 81.7 m | 3,202 |
| DRAINAGE | Iowa | Good | 1996 | 8.8 m | 3,201 |
| STREAM | Iowa | Fair | 1932 | 8.2 m | 3,200 |
| WINNEBAGO RIVER | Iowa | Fair | 1966 | 43.6 m | 3,200 |
| WILLOW CREEK | Iowa | Fair | 1968 | 40.2 m | 3,200 |
| US 30 & US 61 | Iowa | Fair | 1975 | 86.9 m | 3,200 |
| STREAM | Iowa | Good | 2004 | 10.0 m | 3,200 |
| SOUTH RACCOON RIVER | Iowa | Good | 1983 | 50.9 m | 3,200 |
| BRUSHY CREEK | Iowa | Fair | 1972 | 50.9 m | 3,200 |
| MIDDLE RACCOON RIVER | Iowa | Fair | 1972 | 93.3 m | 3,200 |
| FLOYD RIVER TRIBUTARY | Iowa | Fair | 1932 | 18.9 m | 3,200 |
| N BRANCH TURKEY RIVER | Iowa | Good | 2023 | 30.7 m | 3,200 |
| CATFISH CREEK | Iowa | Good | 2019 | 191.7 m | 3,200 |
| OVER UP RR & STREET | Iowa | Poor | 1937 | 201.2 m | 3,200 |
| CEDAR RIVER | Iowa | Good | 1989 | 187.5 m | 3,197 |
| HINKLE CREEK | Iowa | Poor | 1973 | 31.4 m | 3,197 |
| WAPSIPINICON RIVER | Iowa | Fair | 1952 | 98.5 m | 3,187 |
| INDIAN CREEK | Iowa | Fair | 1937 | 7.9 m | 3,184 |
| US 218 & IA 27 | Iowa | Good | 2015 | 88.4 m | 3,182 |
| DRAINAGE DITCH | Iowa | Good | 2015 | 6.7 m | 3,180 |
| FLASHER CREEK | Iowa | Fair | 1965 | 35.4 m | 3,180 |
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.