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  2. Tunnel and Reservoir Plan - Wikipedia

    en.wikipedia.org/wiki/Tunnel_and_Reservoir_Plan

    Aerial view of Phase II of the McCook Reservoir under construction in 2023. The Tunnel and Reservoir Plan (abbreviated TARP and more commonly known as the Deep Tunnel Project or the Chicago Deep Tunnel) is a large civil engineering project that aims to reduce flooding in the metropolitan Chicago area, and to reduce the harmful effects of flushing raw sewage into Lake Michigan by diverting ...

  3. Site plan - Wikipedia

    en.wikipedia.org/wiki/Site_plan

    Sites plan typically show buildings, roads, sidewalks and paths/trails, parking, drainage facilities, sanitary sewer lines, water lines, lighting, and landscaping and garden elements. [ 1 ] Such a plan of a site is a "graphic representation of the arrangement of buildings, parking, drives, landscaping and any other structure that is part of a ...

  4. Metropolitan Water Reclamation District of Greater Chicago

    en.wikipedia.org/wiki/Metropolitan_Water...

    In 1910, the North Shore Channel was completed to provide drainage for the marshy areas north of the city and to direct lake water into the North Branch of the Chicago River for dilution. The Cal-Sag Channel was ready for operation in 1922, which also was the year the first treatment plant of the Sanitary District of Chicago was completed.

  5. Cal-Sag Channel - Wikipedia

    en.wikipedia.org/wiki/Cal-Sag_Channel

    The Cal-Sag Channel is utilized for inland shipping, recreational boating and drainage purposes in what was an active zone of heavy industry in the Far Southeast Side neighborhoods of the city of Chicago and adjacent suburbs. As a drainage channel, it is used as a conduit for treated effluent wastewater from southern Cook County, including the ...

  6. Runoff curve number - Wikipedia

    en.wikipedia.org/wiki/Runoff_curve_number

    Natural desert landscaping (pervious area only) 63: 77: 85: 88 Artificial desert landscaping (impervious weed barrier, desert shrub with 1- to 2-inch sand or gravel mulch and basin borders) 96: 96: 96: 96 Urban districts Commercial and business (85% imp.) 89: 92: 94: 95 Industrial (72% imp.) 81: 88: 91: 93 Residential districts by average lot size

  7. Watershed delineation - Wikipedia

    en.wikipedia.org/wiki/Watershed_delineation

    Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin, or river basin.It is an important step in many areas of environmental science, engineering, and management, for example to study flooding, aquatic habitat, or water pollution.

  8. Water cribs in Chicago - Wikipedia

    en.wikipedia.org/wiki/Water_cribs_in_Chicago

    The Edward F. Dunne Crib was built in 1909. Named after Chicago Mayor Edward Fitzsimmons Dunne, who was in office at the time crib plans were approved, the 110-foot (34 m) diameter circular crib stands in 32 feet (9.8 m) of water and houses a 60-foot (18 m) diameter interior well connected to two new tunnels. The Dunne Crib is situated 50 feet ...

  9. Drainage gradient - Wikipedia

    en.wikipedia.org/wiki/Drainage_gradient

    Drainage gradient (DG) is a term in road design, defined as the combined slope due to road surface cross slope (CS) and longitudinal slope (hilliness). Although the term may not be used, the concept is also used in roof design and landscape architecture. If the drainage gradient is too low, rain and melt water drainage will be insufficient.