The City’s Sanitary Master Plan prepared by AECOM Canada Ltd. identified the sanitary sewer main crossing on 240 Street under the Kanaka Creek Bridge through two siphons as requiring upgrades. The upgrades were planned in stages: Phase 1 was the installation of new siphon manhole connection and modifications to existing siphons that were completed in 2019 and Phase 2 is the installation of two new inverted siphons suspended under the Kanaka Creek Bridge. The existing siphons under Kanaka Creek will be maintained as back-ups to the new inverted siphons.
The Phase 2 work generally consists of the installation of two new inverted siphons suspended under the Kanaka Creek Bridge deck, complete with pigging or cleaning ports, connection to valves on the siphon inlet chamber, a new manhole, tie-in to the existing manhole, roadway rehabilitation and environmental remediation works. Construction is anticipated to be complete by the end of November 2020.
240 Street is expected to remain open to traffic throughout construction as most of the work is on the east side of Kanaka Creek Bridge.
Should you have any questions regarding this project, you may contact the City of Maple Ridge Project Manager, Velimir Stetin at 604-467-7495.