Meadowlands Drive between Fisher Avenue and Tiverton Drive had experienced aging and undersized sanitary and trunk storm sewers, as well as numerous recent watermain breaks. Our firm completed the detail design and tender document preparation for an integrated road, sewer, and watermain reconstruction along this route.
Meadowlands Drive is classified as a major collector and also includes four eastbound and two westbound OC Transpo bus routes within the project limits. Management of car and bus traffic was one of the key challenges for this project and was considered during all stages of the design process, including the selection of sewer and watermain corridors. We consulted closely with the City and OC Transpo to develop a comprehensive traffic management plan. We also consulted with an experienced local contractor as part of the design process to discuss traffic management and to assess the space required to install the proposed underground infrastructure. The final traffic management plan included construction of a temporary traffic lane in the boulevard to maintain traffic flow in at least one direction. Installation of buried infrastructure within the intersection of Meadowlands Drive and Fisher Avenue was also limited to weekend work only.
The final design included 900 m of new 406 mm diameter watermain to replace the aging 250 mm watermain. Our firm worked closely with the City’s Infrastructure Services Department to review the impact of shutting down the existing watermain during construction to outline any potential constraints within the tender documents with respect to staging of the watermain replacement. The old 1,050 mm diameter trunk storm sewer was also replaced with larger 1,350 mm and 1,500 mm diameter pipe. We designed a short section of custom 1,800 mm x 900 mm box storm sewer with a 100 mm deep notch along the top of the pipe to accommodate crossing of a sanitary service over the proposed trunk storm sewer.