The design and construction of Highway 407 ETR - Express Toll Route in Toronto required innovative geotechnical management to fast track design and construction to meet the tight construction schedule. The Geotechnical Manager and Quality Control Manager had to work in an integrated manner to develop procedures as the design progressed so that approvals could be obtained on time. The geotechnical management of the project included advance planning and identification of problems, value engineering, innovative applications and constructability reviews. Site specific solutions had to be found to meet limitations of time and budget. Innovative solutions for various elements of the project including materials, constructability and design from geotechnical perspective are described in this paper. Lack of adequate geotechnical information was compensated by close monitoring of the work during construction. Cooperation between design, construction and QA/QC resulted in timely solutions to difficult situations. (A)
Abstract