On-site detention of urban stormwater runoff is an effective and economical means of handling runoff in upstream areas without adding to flooding problems in downstream areas. Runoff may be temporarily sorted by ponding it in open spaces and parks, and on parking lots and horizontal roofs of buildings. Release of stored runoff is regulated so that it does not cause the capacity of downstream drainage systems to be exceeded. Several successfully-operating urban drainage facilities that employ on-site detention are described. An example is given of a single-family residential development where 370,000 dollars was saved by using detention ponds. Another example describes a new city under construction where 3 million dollars is being saved in construction costs by incorporating detention of runoff into the design. /AUTHOR/

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  • Accession Number: 00260475
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 11 1974 12:00AM