Windward Viaducts

Windward Viaducts
The Windward Viaducts connecting the Hospital Rock Tunnels on the left with the longer Tetsuo Harano Tunnels in the background
Carries	4 lanes of H-3
Locale	near Kaneohe, Hawaii
Characteristics
Total length	Approximately 6,600 feet (2,000 m) in each direction [1]

The Windward Viaducts are a pair of highway viaducts that pass along the edge of the Ko‘olau Range between the Tetsuo Harano Tunnels and the Hospital Rock Tunnels on the island of O‘ahu in the State of Hawaii. The viaducts are located on Interstate H-3, which connects Kaneohe with the Interstate H-1 and Interstate H-201 freeways at Hālawa near Pearl Harbor. These structures are among the longest bridges in Hawaii and are considered an engineering marvel.

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