Historic Bridges in Oregon
790 bridges built before 1951 in Oregon still in service today.
Bridges Built Before 1951
The United States has 790 bridges in Oregon built before 1951 that remain in active service. These structures are 75+ years old — many predate modern engineering codes and were not designed for today's traffic volumes and vehicle weights. The average design life of a bridge is 50 years, making these aging structures a significant infrastructure concern.
| Bridge | State | Condition | Year Built | Age (Years) | ADT |
|---|---|---|---|---|---|
| BULL RUN RIVER | Oregon | Poor | 1926 | 100 | 865 |
| SANDY RIVER | Oregon | Fair | 1926 | 100 | 16,064 |
| HWY 1 SB | Oregon | Fair | 1926 | 100 | 1,940 |
| B-36 OVER SW JEFFERSON | Oregon | Fair | 1926 | 100 | 10,700 |
| B-42 OVER SW TALBOT RD | Oregon | Fair | 1926 | 100 | 4,371 |
| MOSBY CREEK | Oregon | Fair | 1926 | 100 | 363 |
| YAQUINA RIVER | Oregon | Fair | 1926 | 100 | 65 |
| STOUT CREEK | Oregon | Fair | 1926 | 100 | 265 |
| MENDENHALL CREEK | Oregon | Fair | 1926 | 100 | 104 |
| ILLINOIS RIVER | Oregon | Fair | 1926 | 100 | 273 |
| WEST BURNSIDE APPROACH | Oregon | Fair | 1927 | 99 | 60,407 |
| EAST BURNSIDE APPROACH | Oregon | Fair | 1927 | 99 | 58,691 |
| ROGUE RIVER @ GOLD HILL | Oregon | Fair | 1927 | 99 | 6,174 |
| ROCKY CREEK | Oregon | Fair | 1927 | 99 | 8,900 |
| ANDERSON CREEK | Oregon | Fair | 1927 | 99 | 8,038 |
| ANDERSON CREEK | Oregon | Fair | 1927 | 99 | 7,664 |
| N. Fork Alsea River | Oregon | Fair | 1927 | 99 | 1,633 |
| Harris Road & WPRR | Oregon | Fair | 1927 | 99 | 9,235 |
| WATERS CREEK | Oregon | Fair | 1927 | 99 | 7,878 |
| SLATE CREEK | Oregon | Fair | 1927 | 99 | 7,878 |
| SLATE CREEK | Oregon | Fair | 1927 | 99 | 7,878 |
| BUTCHER KNIFE CREEK | Oregon | Fair | 1927 | 99 | 7,878 |
| Depoe Bay | Oregon | Fair | 1927 | 99 | 11,116 |
| UNION CREEK | Oregon | Fair | 1927 | 99 | 1,642 |
| EUCHRE CREEK | Oregon | Poor | 1927 | 99 | 225 |
| GULLY | Oregon | Fair | 1927 | 99 | 14,607 |
| B-82 X SW MULTNOMAH BLVD | Oregon | Fair | 1927 | 99 | 12,976 |
| DEER CREEK | Oregon | Fair | 1927 | 99 | 12,061 |
| MILL CREEK | Oregon | Fair | 1927 | 99 | 15,001 |
| B-90 OVER JOHNSON CREEK | Oregon | Fair | 1927 | 99 | 16,718 |
| BIRCH CREEK | Oregon | Fair | 1927 | 99 | 82 |
| Soapstone Creek | Oregon | Fair | 1928 | 98 | 452 |
| DEADWOOD CREEK | Oregon | Fair | 1928 | 98 | 443 |
| FOOTS CREEK | Oregon | Fair | 1928 | 98 | 2,246 |
| Beaver Creek | Oregon | Fair | 1928 | 98 | 10,148 |
| HUNTER CREEK | Oregon | Poor | 1928 | 98 | 739 |
| BLUE RIVER | Oregon | Fair | 1928 | 98 | 1,427 |
| LAKE CREEK | Oregon | Fair | 1928 | 98 | 273 |
| MILL CREEK | Oregon | Fair | 1928 | 98 | 12,020 |
| PRINGLE CREEK | Oregon | Fair | 1928 | 98 | 21,752 |
| PRINGLE CRK | Oregon | Good | 1928 | 98 | 4,000 |
| B RODGERS CREEK | Oregon | Fair | 1928 | 98 | 630 |
| LUCKIAMUTE RIVER | Oregon | Fair | 1928 | 98 | 332 |
| UMATILLA RIVER | Oregon | Fair | 1928 | 98 | 96 |
| DRY CREEK | Oregon | Poor | 1928 | 98 | 9 |
| Beaver Creek | Oregon | Fair | 1929 | 97 | 23,127 |
| South Yamhill River | Oregon | Fair | 1929 | 97 | 2,224 |
| N POWDER R (BIDWELL LANE | Oregon | Fair | 1929 | 97 | 53 |
| FOURMILE CREEK | Oregon | Fair | 1929 | 97 | 5,551 |
| Gnat Creek | Oregon | Fair | 1929 | 97 | 6,811 |
About Historic Bridge Data
Bridges built before 1951 are classified as historic in this database. Many were designed to 1940s standards with lower load limits and narrower lanes. While FHWA requires regular inspections of all bridges regardless of age, older structures often require more frequent monitoring and rehabilitation investment.