storm drainage
81Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
82hydrologic sciences — Introduction the fields of study concerned with the waters of the Earth. Included are the sciences of hydrology, oceanography, limnology, and glaciology. In its widest sense hydrology encompasses the study of the occurrence, the… …
83100-year flood — For other uses, see 100 year flood (disambiguation). A one hundred year flood is calculated to be the level of flood water expected to be equaled or exceeded every 100 years on average. The 100 year flood is more accurately referred to as the 1%… …
8417th Street Canal — Woman walks dog along the levee beside the floodwall on the Metairie side of the canal, November 11, 2005. In the background to the right, ongoing repairs in the breach on the New Orleans side can be seen. The 17th Street Canal is a drainage… …
85Cyclone Onil — Severe Cyclonic Storm Onil Severe cyclonic storm (IMD) Tropical storm (SSHS) Cyclone Onil off the coast of Pakistan on October 2 Formed September 30, 2004 …
86Basement — This article is about the section of a building. For other uses, see Basement (disambiguation). An unfinished basement used for storage and exercise equipment …
87tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
88building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …
89roads and highways — ▪ transportation Introduction traveled way on which people, animals, or wheeled vehicles move. In modern usage the term road describes a rural, lesser traveled way, while the word street denotes an urban roadway. Highway refers to a major… …
90Wetland — For other uses, see Wetland (disambiguation). The Florida Everglades massive wetland system in the United States saw 1.7 billion gallons of fresh water flushed from it daily and pumped into the ocean following one of the most successive water… …
