maintenance manholes

См. также в других словарях:

• Common utility duct — A common utility duct, sometimes called a common utility conduit, is any structure – above, on, or below ground – that carries more than two types of public utility lines. However, the phrase often refers specifically to underground utility… …   Wikipedia

• Manhole — For other uses, see Manhole (disambiguation). PMG manhole in a city street, Perth, Western Australia …   Wikipedia

• Simplified sewerage — is a low cost sewer system that collects all household wastewater (WC wastes and sullage) in small diameter pipes laid at fairly flat gradients. Simplified sewers are laid in the front yard or under the pavement (sidewalk) or if feasible inside… …   Wikipedia

• Vacuum sewer — Vacuum sewers were first installed in Europe in 1882 but until the last 30 years it had been relegated to a niche market. The first who has applied the negative pressure drainage (so called vacuum sewerage) was the Dutch engineer Liernur in the… …   Wikipedia

• Roof and tunnel hacking — is the unauthorized (generally prohibited and often illegal) exploration of roof and utility tunnel spaces. The term carries a strong collegiate connotation, stemming from its use at MIT, where the practice has a long history (see vadding). It is …   Wikipedia

• Largo, Florida — Infobox Settlement official name = Largo other name = native name = nickname = The City of Progress settlement type = City motto = imagesize = image caption = flag size = image seal size = image shield = shield size = image blank emblem = blank… …   Wikipedia

• MetroWest Water Supply Tunnel — Official name MWWST Begins Marlborough Ends Weston Maintained by MWRA …   Wikipedia

• Chicago Tunnel Company — Under the streets of Chicago, pre 1906. Locale Illinois Dates of operation 1906–1959 T …   Wikipedia

• Uniclass — infobox Book | name = Uniclass title orig = translator = image caption = Front cover of Uniclass author = CPIC illustrator = cover artist = country = UK language = English series = genre = publisher = RIBA Publications pub date = 1997 english pub …   Wikipedia

• Glossary of boiler terminology — Boilers for generating steam or hot water have been designed in countless different shapes, sizes and configurations. An extensive terminology has evolved to describe their common features. This glossary provides definitions for these terms.… …   Wikipedia

• Construction surveying — (otherwise known as lay out or setting out ) is to stake out reference points and markers that will guide the construction of new structures such as roads or buildings. These markers are usually staked out according to a suitable coordinate… …   Wikipedia