COMMENT PERIOD OPEN FOR URBAN DRAINAGE GUIDELINES

摘要

The American Society of Civil Engi- neers (ASCE) will conduct a public comment period from Jan. 1, 2012 through Feb. 15, 2012, on three updated standard guidelines. The updates for Standard Guidelines for the Design of Urban Subsurface Drainage are a companion to the Standard Guidelines for the Installation of Urban Subsurface Drainage and Standard Guidelines for the Operation and Maintenance of Urban Subsurface Drainage. These standard guidelines were developed by the Urban Drainage Standards Committee, which is responsible to the Environmental and Water Resources Institute of ASCE.