As more and more municipalities look towards replacing aging infrastructure along key transportation corridors, one common goal is minimizing the interruption to traffic and business along those critical routes. This paper reviews the City of Toronto's use of Subsurface Utility Engineering (SUE) services to manage this important issue for their Yonge Street Redevelopment Project. One element is the replacement of the existing watermains along Yonge Street from Eglinton Ave to Lawrence Ave. In addition to the watermains, there are plans for sewer chamber rehabilitation, sewer lining, boulevard reconstruction and road resurfacing within the project area. In order to minimize disruption along this critical corridor the City looked at methods of gathering utility information that could be used to help minimize or eliminate potential delays during construction. The City decided to complete a Subsurface Utility Engineering (SUE) investigation, in accordance with the CI/ASCE 38-02: Standard Guidelines for the Collection and Depiction of Existing Subsurface Utility Data. The authors will analyze how the scope of the investigation was developed to ensure the efficient gathering of the data. They will also discuss the techniques used for the investigation, and comment on the benefits and limitations of each technique based on the site specific conditions. For the covering abstract of this conference see ITRD number E216597.
Abstract