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Eglinton Crosstown LRT - Design

Preliminary and detailed SEM tunnel design. Primary and secondary lining, waterproofing and interior structures design on three SEM stations (namely Laird, Avenue and Oakwood).
Estimated cost: Commencement:
November 01, 2015
Completion date:
97 Front Street West
Toronto, ON M5J1E6
Technical data:
Geology description:

Glacial depositional systems created a complex distribution of heavily overconsolidated till layers, separated by interstadial stratified deposits of glaciolacustrine clay, silt, and sand.

Geology types:
Bid cost: Final cost:
$8.25 billion CAD
Service areas:
Construction methods:
Tunneling under:

The Crosstown is a light rail transit line, which is part of the regional transportation plan for the Greater Toronto and Hamilton Area. The project will provide a 19km corridor across Eglinton Avenue, connecting ten stops at grade and 15 underground stations with a 10km twin-bored tunnel. Dr G. Sauer & Partners provided detailed design for Oakwood, Avenue, and Laird stations. A combination of Cut-and-Cover construction for the shafts and mined techniques (SEM) for the tunnels was utilised. Excavation and support measures were tailored to the ground conditions. Finite element analyses were carried out to determine structural capacity of linings and trigger values to meet stingent settlement criteria at the surface.

Route map (
3D Finite Element Analysis Station, Box, Crosscut, Cavern, Tunnels