Full Title: Qualifying Tunneling Contractors for Construction of the Rutland Truck Sewer - Ferry Road Combined Sewer Relief - Contract 6
B7. SCOPE OF WORK
B7.1 The Work to be done under the subsequent Contract shall consist of:
(a) Coordination of shallow utility relocations with various utilities, as required depending
upon shaft locations. Relocation of building sewer and water services depending upon shaft
locations.
(b) Relocation of approximately 800 m of 300, 375 and 450 mm combined sewer (conversion to
wastewater sewer) including manholes and relocation of sewer services. Temporary relocation and
bypass pumping of the Ness Avenue Combined Sewer Trunk to accommodate the tunneling work.
(c) Construction of launch and retrieval shafts. A maximum of 7 shafts is anticipated
(including a partial shaft at the transition from tunneled to open trench installation).
(d) Installation of approximately 1,960 m of 2400 mm Reinforced Concrete Trunk land drainage
sewer, primarily by trenchless (microtunneling) methods but including up to 250 m of open trench
sewer near the Assiniboine River where the depth of cover is believed to be too shallow for
tunneling.
(e) Installation of associated land drainage sewer appurtenances including saddle type
manholes along the trunk and the installation of smaller diameter lateral stubs at the Assiniboine
Avenue active transportation pathway and crossing streets to accommodate future sewer connections.
(f) Installation of a river outfall, including a short riprap lined channel. A gate chamber
is not required.
(g) Several alternative alignments for the sewer river outfall have been developed and are
shown as a sketch in Appendix A. Each alignment has different pros and cons with regards to the
removal of mature trees and impact to existing park and community facilities. The selection of
alignment will be done in consultation with community stakeholders.
(h) Two alternative alignments have been developed for the upper end of the sewer near the
extension of St. Matthew’s Avenue. The selection will be done in consultation with community
stakeholders.
(i) Replacement of existing and installation of new catch basins and catch basin leads along
the route and connection into the new trunk land drainage sewer.
(j) Restoration of parkland, trees, pavements, boulevards and other features impacted by the
works.
(k) A Social Procurement clause will be included in the subsequent Tender. The Social
Procurement clause may address outcomes around employment of equity groups, skills and training of
equity groups, or diversity in the supply chain.
B7.2 The Preliminary Drawings attached to this RFQ in Appendix B show the general
arrangement of the works. Proponents are advised that the attached information is preliminary and
subject to final modifications. A full final set of documents will be issued under Tender
286-2024B for the final bidding process.
B7.3 The Trunk sewer being installed under Tender 286-2023B shall be installed using
microtunneling methods. Minimizing the number of shafts and minimizing the disturbance and impact
on the residential neighbourhood is an important consideration.
