Historic Bridges in Hawaii
386 bridges built before 1951 in Hawaii still in service today.
Bridges Built Before 1951
The United States has 386 bridges in Hawaii 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 |
|---|---|---|---|---|---|
| WAIKELE CANAL IB | Hawaii | Good | 1939 | 87 | 27,300 |
| RR XING(HWY OP) | Hawaii | Fair | 1939 | 87 | 27,300 |
| FARR HWY/HONOULIULI STRM | Hawaii | Fair | 1939 | 87 | 7,587 |
| RAILROAD(HONUAPO) | Hawaii | Good | 1940 | 86 | 3,730 |
| PUNALUU STRM | Hawaii | Good | 1940 | 86 | 2,036 |
| KEAMUKU STRM | Hawaii | Fair | 1940 | 86 | 5,800 |
| RELIEF N PECK RD | Hawaii | Good | 1940 | 86 | 340 |
| RELIEF OSHIRO RD | Hawaii | Good | 1940 | 86 | 260 |
| WAILUKU RIVER | Hawaii | Fair | 1940 | 86 | 375 |
| KAWAINUI STRM | Hawaii | Fair | 1940 | 86 | 30,705 |
| KAWAINUI STRM | Hawaii | Fair | 1940 | 86 | 30,705 |
| POLIPOLI STRM | Hawaii | Fair | 1940 | 86 | 2,500 |
| KAPALAAU STRM | Hawaii | Fair | 1940 | 86 | 2,400 |
| MAKALENA STRM | Hawaii | Good | 1940 | 86 | 2,400 |
| KAUKONAHUA STRM | Hawaii | Good | 1940 | 86 | 9,100 |
| WAIMEA RIVER | Hawaii | Fair | 1940 | 86 | 11,300 |
| UNMD STRM(KAMILOLOA) | Hawaii | Fair | 1940 | 86 | 2,300 |
| UNMD STRM(MAKAKUPAIA) | Hawaii | Good | 1940 | 86 | 2,300 |
| KAWAIHAPAI STRM | Hawaii | Good | 1941 | 85 | 2,500 |
| WAIALUA PLT RD | Hawaii | Fair | 1941 | 85 | 9,100 |
| WAWAMALU STREAM | Hawaii | Fair | 1941 | 85 | 10,000 |
| FARR HWY/KALOI GULCH | Hawaii | Fair | 1941 | 85 | 5,213 |
| FARR HWY/HUNEHUNE STRM | Hawaii | Fair | 1941 | 85 | 5,472 |
| DRAINAGE | Hawaii | Fair | 1941 | 85 | 500 |
| WAIMANALO STREAM | Hawaii | Poor | 1941 | 85 | 500 |
| UNMD STRM(53 MI BR) | Hawaii | Fair | 1942 | 84 | 1,020 |
| KALIHI ST BR#3/KALIHI ST | Hawaii | Poor | 1942 | 84 | 1,073 |
| KUMUMAUU CANAL | Hawaii | Fair | 1943 | 83 | 500 |
| KEEHI DRAINAGE DITCH | Hawaii | Fair | 1943 | 83 | 15,999 |
| KALIHI STRM /OB | Hawaii | Poor | 1943 | 83 | 70,510 |
| MANUWAI CANAL | Hawaii | Fair | 1944 | 82 | 750 |
| MANUWAI CANAL | Hawaii | Fair | 1944 | 82 | 1,000 |
| DRAINAGE CHANNEL | Hawaii | Fair | 1944 | 82 | 1,000 |
| KAUKONAHUA STRM | Hawaii | Fair | 1944 | 82 | 17,800 |
| KALIALINUI STRM | Hawaii | Fair | 1944 | 82 | 37,400 |
| KAHAUIKI STREAM | Hawaii | Fair | 1944 | 82 | 50 |
| KUMUMUMAUU CANAL | Hawaii | Fair | 1945 | 81 | 10 |
| PANAEWA STREAM | Hawaii | Good | 1945 | 81 | 2,036 |
| PANAEWA STREAM | Hawaii | Good | 1945 | 81 | 2,036 |
| KALIHI STRM | Hawaii | Poor | 1945 | 81 | 24,300 |
| PEARL CITY STRM(WEST BN) | Hawaii | Good | 1945 | 81 | 36,200 |
| WAIMALU STRM(WEST BN) | Hawaii | Fair | 1945 | 81 | 42,700 |
| KALAUAO SPRING (W.B) | Hawaii | Fair | 1945 | 81 | 49,300 |
| KALAUAO STRM (W.B) | Hawaii | Good | 1945 | 81 | 49,300 |
| HALAWA STRM (W.B) | Hawaii | Fair | 1945 | 81 | 27,300 |
| WAILUA RIVER | Hawaii | Poor | 1945 | 81 | 31,600 |
| MALIKO GULCH | Hawaii | Fair | 1945 | 81 | 3,540 |
| WAIPIO ACC RD/RR R/W | Hawaii | Fair | 1946 | 80 | 7,835 |
| NANAKULI STRM | Hawaii | Fair | 1947 | 79 | 33,900 |
| KAHALA AVE/MULIWAI DITCH | Hawaii | Good | 1947 | 79 | 4,124 |
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.