impervious paving

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• Impervious surface — Impervious surfaces are mainly artificial structures, such as pavements, rooftops, sidewalks, roads, and parking lots covered by impenetrable materials such as asphalt, concrete, brick, and stone. Soils compacted by urban development are also… …   Wikipedia

• Permeable paving — Permeable paving, is different than pervious paving or porous pavement, by virtue of the fact that rainwater passes around the paver as opposed to passing through the paver helping to reduce or eliminate clogging found in pervious or porous… …   Wikipedia

• Nonpoint source pollution — Muddy river polluted by sediment. Photo courtesy of United States Geological Survey. Nonpoint source (NPS) pollution refers to both water and air pollution from diffuse sources. Nonpoint source water pollution affects a water body from sources… …   Wikipedia

• Asphalt — Note: The terms bitumen and asphalt are mostly interchangeable, except where asphalt is used as an abbreviation for asphalt concrete For other uses, see Asphalt (disambiguation). Natural bitumen from the Dead sea …   Wikipedia

• Concrete — This article is about the construction material. For other uses, see Concrete (disambiguation). Outer view of the Roman Pantheon, still the largest unreinforced solid concrete dome.[1] …   Wikipedia

• Storm drain — This article describes subterranean tunnels conveying runoff from urban streets. See Combined sewer for a description of early drainage systems designed to use storm runoff to flush sanitary and industrial wastes into natural waterways for… …   Wikipedia

• Stormwater — is a term used to describe water that originates during precipitation events. It may also be used to apply to water that originates with snowmelt or runoff water from overwatering that enters the stormwater system. Stormwater that does not soak… …   Wikipedia

• Daylighting (streams) — Here Marin Creek has been daylighted. For the use of natural light in indoor illumination, see Daylighting. For a similar operation with transportation tunnels, see Daylighting (tunnels). In urban design and urban planning, daylighting is the… …   Wikipedia

• France — /frans, frahns/; Fr. /frddahonns/, n. 1. Anatole /ann nann tawl /, (Jacques Anatole Thibault), 1844 1924, French novelist and essayist: Nobel prize 1921. 2. a republic in W Europe. 58,470,421; 212,736 sq. mi. (550,985 sq. km). Cap.: Paris. 3.… …   Universalium

• Li'l Abner — This article is about the comic strip. For the stage musical, see Li l Abner (musical). For the film musical, see Li l Abner (1959 film). For the 1940 film, see Li l Abner (1940 film). Li l Abner It s Jack Jawbreaker! Li l Abner visits the… …   Wikipedia

• Detention basin — A detention basin is a stormwater management facility installed on, or adjacent to, tributaries of rivers, streams, lakes or bays that is designed to protect against flooding and, in some cases, downstream erosion by storing water for a limited… …   Wikipedia