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Home > TTC Requests EOI for Relief Line South TBM Procurement

TTC Requests EOI for Relief Line South TBM Procurement

Tris Thomas

Written by Tris Thomas on 30/04/2019 in News

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The Toronto Transit Commission (TTC) has announced that it intends to procure its own Tunnel Boring Machines (TBMs) for the twin bored tunnels for the proposed Relief Line South subway transit line, in Toronto, Canada. TTC will make these TBMs available to the tunnelling contractor who will be responsible for TBM operation and maintenance.

Toronto Relief Line South alignment 1024x819

Toronto Relief Line South alignment

The City of Toronto, TTC and Metrolinx are planning the Relief Line to relieve crowding on its existing metro network and provide more travel options to transit riders throughout Toronto. The Relief Line is being studied in two parts: Relief Line North (RLN) and Relief Line South (RLS). The proposed RLS is a 7.5km long subway line with 8 stations that will connect the Yonge-University-Spadina Subway (Line 1) downtown to the Bloor-Danforth Subway (Line 2). The RLS will help to relieve crowding on Line 1 south of Bloor, at the Bloor-Yonge Station, and on the surface transit routes coming in and out of downtown.

The TTC is requesting an Expression of Interest (EOI) from entities interested in the design, fabrication, and providing technical and maintenance support during the construction of tunnelling activities for the TBMs. The purpose of this Request for Expression of Interest (RFEOI) is to gauge interest in the TBM procurement and gather information for the development of the contracts. Responses to the RFEOI will: 1) provide feedback from potential proponents to help develop the contract; and 2) provide a basis for further questions and identify participants for the subsequent Market Sounding exercise.

While submission of an EOI is not a prerequisite for participating in the eventual procurement process for the TBMs, interested entities are being encouraged to submit an EOI with detailed comments. The request was issued on April 9 and has a closing date of May 9. More information can be found on the project web site.

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