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A stormwater detention vault is an underground structure designed to manage excess stormwater runoff on a developed site, often in an urban setting. This type of best management practice may be selected when there is insufficient space on the site to infiltrate the runoff or build a surface facility such as a detention basin or retention basin .
Concrete cistern. Cisterns are commonly prevalent in areas where water is scarce, either because it is rare or has been depleted due to heavy use. Historically, the water was used for many purposes including cooking, irrigation, and washing. [8] Present-day cisterns are often used only for irrigation due to concerns over water quality.
Cistern in the Mission District, San Francisco, California. The Auxiliary Water Supply System (AWSS, though often referred to on manhole covers and hydrants as HPFS for High Pressure Fire System) is a high pressure water supply network built for the city of San Francisco in response to the failure of the existing emergency water system during the 1906 earthquake.
Aug. 1—Marc Bedner shakes his head in disbelief while standing by his two rain-catching cisterns placed at an outside corner of his home in Eldorado. He glances at the brown tanks, both ...
A dry well or drywell is an underground structure that disposes of unwanted water, most commonly surface runoff and stormwater, in some cases greywater or water used in a groundwater heat pump. It is a gravity-fed , vertical underground system that can capture surface water from impervious surfaces , then store and gradually infiltrate the ...
Underground construction has a number of unique risks and challenges but shares a lot with traditional construction and mining. Underground construction workers often work under reduced light condition, in dangerous spaces, and are at a high risk of exposure to contaminants, fire, and explosions.
G-Cans, originally G-CANS PROJECT, [5] is the name of a civic group [6] [7] whose goal is to "transform the area surrounding the Metropolitan Area Outer Underground Discharge Channel and the Shōwa Drainage Pump Station into a new cultural and community hub, utilizing these regional resources to promote regional development"; "CANS" represents the idea that "anything can be done with the ideas ...
To prevent it from rotting, a salt lick was added to the water from the top of the tank. Due to the stagnation of water, the salt lick did not dissolve throughout the water and over time a dense saltwater layer formed at the bottom of the tank, about one meter. Because of this, the tap was built one meter above the bottom of the tank.