Highway Runoff Water Quality Research Implementation Manual. Volume 1. Water Quality Criteria

摘要

The Washington State Department of Transportation (WSDOT)/University of Washington Highway Runoff Water Quality research project, conducted from 1977 to 1982, produced a number of results of potential use to WSDOT. An effort was required to implement these results in the Department's procedures. One phase of implementation completed previously involved preparation of a guide for assessing the impacts of operating highways on aquatic ecosystems and training WSDOT personnel in its use. Volume 1 of the implementation manual states the criteria, which were developed for: (1) identification of waters potentially sensitive to impact by operating highways; (2) the use of vegetated drainage courses to treat highway runoff; (3) the use of retention/detention facilities for highway stormwater drainage; (4) disposal of ditch cleaning spoils; (5) the use of woodwaste fills for highway construction; (6) highway sanding; (7) dilution of highway runoff in a receiving water; (8) highway cleaning; and (9) stream channel modification for highway construction.