Evaluation of the Effectiveness of Oil-Grit Separators in South Central Alaska.Phase 1

摘要

In response to an increasing national concern for the environmental impact ofhighway runoff, the Federal Highway Administration (FHWA) allocated funds for the study of the mitigation of pollutants found in highway runoff. For certain circumstances oil-grit separators (OGS) may be appropriate Best Management Practice for stream crossing sites with restricted space. However, the FHWA questions their effectiveness. They have indicated that runoff from roads such as the Sterling Highway, with a predicted Average Daily Traffic of 6,350 vehicles for the year 2,000, may not contain significant amount of pollutants and that OGS technology is not effective as an overall treatment strategy. The Alaska DOT&PF, with guidance from the Alaska Dept. of Enrivonmental Conservation Regulations, designed and constructed an OGS system at the Moose River. The project was funded by FHWA in response to strong environmental concern at the Moose River crossing of the Sterling Highway.