Duraslot is an HDPE pipe with an aluminum slot that intercepts sheet flows of water and is being used for the first time on a major Canadian 400-series highway.
Duraslot was chosen because the shallow installation depth reduces installation costs and the contractor could install 60 m (197’) feet per day. In order to lessen the impact on traffic flow, Duraslot was installed at night.
A total of 2,200 meters (7,218’) of Duraslot was installed as part of the project, which will become a 10- and 12-lane road with high occupancy lanes, new and reconstructed bridges and upgrades to utilities and the stormwater drainage system.