underground mains
1underground — Subway Sub way , n. 1. An underground way or gallery; especially, a passage under a street, in which water mains, gas mains, telegraph wires, etc., are conducted. [1913 Webster] 2. An underground railroad, usually having trains powered by… …
2London Underground infrastructure — The infrastructure of the London Underground includes 11 lines, which serve 268 stations by rail. Lines on the Underground can be classified into two types: subsurface and deep level. Lines of both types usually emerge onto the surface outside… …
3London Underground accidents — The London Underground network carries more than a billion passengers a year. On a system of this scale it is impossible to completely prevent accidents although a lot of measures are taken. When such things occur the chance of fatalities is very …
4Deep underground — (大深度地下, dai shindo chika?) is a Japanese concept for the public use of deep underground, enabled by a 2001 law. It was first thought of in the late 1980s as Japan faced ever increasing land values in the economic bubble, to allow the utilization… …
5Willis Avenue Station — U.S. National Register of Historic Places U.S. Historic district Contributing property …
6Ferris Wheel — This article is about the original 1893 Chicago Ferris Wheel. For the generic term, see Ferris wheel. For other uses, see Ferris wheel (disambiguation). The original Ferris Wheel, sometimes also referred to as the Chicago Wheel,[1][2][3] was the… …
7environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
8Utility location — Utility locator in use. Perry, OK, 2011 Utility location is the process of identifying and labeling public utility mains which are underground. These mains may include lines for telephones, electricity distribution, natural gas, cable television …
9Railway electrification system — Railway electrification supplies electrical energy to railway locomotives and multiple units so they can operate without having a reciprocating engine of their own.CharacteristicsThe main advantage of electric traction is a higher power to weight …
10Michels Corporation — is an international utility, engineering, design and construction contractor based in Brownsville, Wisconsin. With more than 4,500 employees in its 15 divisions and subsidiaries, Michels is the largest construction company in Wisconsin. It… …
