Owner
Metrolinx and Infrastructure Ontario
Client
CTSC: SNC-Lavalin, Dragados, Aecon, EllisDon JV
Cost
$8.25 billion CAD
Timeframe
January 2016
— December 2019
Services performed
Initial and detailed inspection of underground structures. Condition assessed and rated according to the 'Highway and Rail Transit Tunnel Inspection Manual (2005)' of the U.S. Department of Transportation - FHWA.
Description
The Crosstown LRT Project is a Light Rail Transit Line that will run along Eglinton Avenue between Mount Dennis and Kennedy Station. This 19km corridor will include a 10km underground section between Keel Street and Laird Drive. This section comprises 2 bored running tunnels; 12 stations of which 3 (Laird, Avenue and Oakwood) will be built underground using the SEM method; 12 cross passages connecting the bored running tunnels and 3 emergency exit buildings. Dr. G. Sauer & Partners performed an initial, detailed inspection of the bored running tunnels, every cross passage and every emergency exit building to establish the condition of these structures prior to takeover by CTS.
Geology
The geology comprises heavily over-consolidated hard plastic glacial till layers, stratified deposits of stiff to hard clays and dense, non-plastic, silt and sand.
Location
Toronto, Canada
Highlights
- Tunnel alignment below groundwater table
- Initial, Detailed inspection. Assessment and rating according to FHWA inspection manual
- New line with 10km underground section
Inspection of Cross Passage Entrance
Inspection of the Segmental Tunnel Lining