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Utility tunnel. A utility tunnel, utility corridor, or utilidor is a passage built underground or above ground to carry utility lines such as electricity, steam, water supply pipes, and sewer pipes. Communications utilities like fiber optics, cable television, and telephone cables are also sometimes carried.
A utility vault is an underground room providing access to subterranean public utility equipment, such as valves for water or natural gas pipes, or switchgear for electrical or telecommunications equipment. A vault is often accessible directly from a street, sidewalk or other outdoor space, thereby distinct from a basement of a building. [1] [2]
The Raven Rock Mountain Complex ( RRMC ), also known as Site R, is a U.S. military installation with an underground nuclear bunker near Blue Ridge Summit, Pennsylvania, at Raven Rock Mountain that has been called an "underground Pentagon ". [ 3][ 4][ 5]: 2 The bunker has emergency operations centers for the United States Army, Navy, Air Force ...
Subsurface utility engineering (SUE) refers to a branch of engineering that involves managing certain risks associated with utility mapping at appropriate quality levels, utility coordination, utility relocation design and coordination, utility condition assessment, communication of utility data to concerned parties, utility relocation cost estimates, implementation of utility accommodation ...
Operation Plumbbob had the tallest tower tests to date in the U.S. nuclear testing program as well as high-altitude balloon tests. One nuclear test involved the largest troop maneuver ever associated with U.S. nuclear testing. Approximately 18,000 members of the U.S. Air Force, Army, Navy and Marines participated in exercises Desert Rock VII ...
A manhole ( utility hole, maintenance hole, [ 1] or sewer hole) is an opening to a confined space such as a shaft, utility vault, or large vessel. Manholes are often used as an access point for an underground public utility, allowing inspection, maintenance, and system upgrades. The majority of underground services have manholes, including ...
Crown Avenue Tunnel, 4,747 feet (1,447 m), Scranton, Lackawanna and Wyoming Valley Railroad (now Electric City Trolley) [13] Dillinger Tunnel, Emmaus, Reading Railroad (Perkiomen Branch) [14] Factoryville Tunnels, 2,250 feet (690 m), east tunnel built in 1851, west tunnel built in 1883, both abandoned in 1915.
Police are investigating why a man with a Pennsylvania address broke into a high voltage electrical vault in the basement of the Connecticut State Office Building, home to the state's ...