During the partial closure of O-Train Line 1, a number of activities were successfully completed, including:
• Drilling and grouting of the tunnel from Lyon Station to east of Rideau Station to address excess water infiltration. This advances the work that took place last year and will reduce future maintenance work related to water infiltration and water damage to infrastructure.
• Application of sealant to concrete infrastructure east of Tunney’s Pasture Station to further reduce the need for future maintenance work related to water ingress and water damage.
• Continuation of the work started in 2023 and new remediation work to address water infiltration in certain sections of the downtown tunnel and targeted areas within Parliament and Lyon stations.
• Sealant treatment of concrete beds and track support infrastructure around Tunney’s Pasture Station and adjacent areas.
• General maintenance and cleaning activities, including the cleaning of glass and artwork, paint removal at specific locations in downtown tunnel stations, concrete, and tile repairs.
• The Stage 2 Contractor EWC (East-West Connectors) made significant progress with overhead catenary system tie-in work adjacent to Tunney’s Pasture station.