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.
The Liberty Tunnels (also known as the Liberty Tubes) are a pair of tunnels located in Pittsburgh, Pennsylvania that allow motorists to travel between the South Hills of Pittsburgh and the city, through Mt. Washington.
 The tunnels were vital in the expansion of the South Hills suburbs by providing a direct route to the city, eliminating the time-consuming task of navigating around or over Mt. Washington and its inclines.
The Tunnel de la Croix-Rousse is a pair of two tunnels located in the 1st and 4th arrondissements of Lyon, a road tunnel opened to traffic on 19 April 1952 and a sustainable transport tunnel opened in 2013.
Interstate H-3 (abbreviated H-3) is an intrastate Interstate Highway located on the island of O'ahu in the state of Hawaii in the United States.
 H-3 is also known as the John A. Burns Freeway.
 It crosses the Ko'olau Range along a viaduct and through the 5165 ft Tetsuo Harano Tunnels as well as the much smaller Hospital Rock Tunnels.
The Hospital Rock Tunnels are a small pair of highway tunnels passing through a ridge on the edge of the Ko‘olau Range on the island of O‘ahu, Hawaiʻi, USA.
 The tunnels are located on Interstate H-3, which connects Kaneohe with Interstate H-1 at Hālawa near Pearl Harbor, and are 354 ft long Kaneohe bound and 353 ft long Halawa bound.
 The tunnels are "cut and cover" tunnels.
Kāneʻ ohe is a census-designated place (CDP) included in the City and County of Honolulu and located in Hawaiʻ i state District of Koʻ olaupoko on the island of Oʻ ahu.
 In the Hawaiian language, "kāne ʻ ohe" means "bamboo man".
 According to an ancient Hawaiian story a local woman compared her husband's cruelty to the sharp edge of cutting bamboo; thus the place was named Kāneʻ ohe or "Bamboo man".
 The population was 34,597 at the 2010 census.
 Kāneʻ ohe is the largest of several communities along Kāneʻ ohe Bay and one of the two largest residential communities on the windward side of Oʻ ahu (the other is Kailua).
 The commercial center of the town is spread mostly along Kamehameha Highway.
The tunnels of Củ Chi are an immense network of connecting underground tunnels located in the Củ Chi District of Ho Chi Minh City (Saigon), Vietnam, and are part of a much larger network of tunnels that underlie much of the country.
 The Củ Chi tunnels were the location of several military campaigns during the Vietnam War, and were the Viet Cong's base of operations for the Tết Offensive in 1968.
The Tom Lantos Tunnels are two tunnels located within the coastal promontory of Devil's Slide in California, United States, allowing State Route 1 to bypass the treacherous Devil's Slide stretch.
 They are officially named after late Congressman Tom Lantos, who was instrumental in securing funding for the project, but "de facto" named after their location.
The water cribs in Chicago are structures built to house and protect offshore water intakes used to supply the City of Chicago with drinking water from Lake Michigan.
 Water is collected and transported through tunnels located close to 200 feet beneath the lake, varying in shape from circular to oval, and ranging in diameter from 10 to 20 feet.
 The tunnels lead from the cribs to one of two water purification plants located onshore, the Jardine Water Purification Plant (the world's largest) and the Eugene Sawyer Water Purification Plant, where the water is then treated before being pumped to all parts of the city as well as 118 suburbs.
Dinmore Tunnel is the name given to two railway tunnels located on the former Shrewsbury and Hereford Railway (S&HR) line between Hereford station and Leominster station.
 It is located just south to the village of Hope Under Dinmore and tunnels under Queen's Wood Country Park & Arboretum.

Question: Where are the Hospital Rock Tunnels located?
Answer: Kaneohe