Geotechnical Considerations in Design and Construction of North Commuter Parkway, Saskatoon SK

This case history reviews geotechnical conditions and design of the North Commuter Parkway (NCP) roadways and bridge crossing of the South Saskatchewan River at Saskatoon SK. The geotechnical investigation of the NCP crossing identified complex geotechnical conditions in both the river valley and on the upland. The site was located within the ancestral Glacial Lake Saskatchewan, a proglacial lake that deposited variable depths of interbedded silt, sand and highly plastic clay. Development of the river channel had eroded much of the lacustrine sediments and underlying till leaving an eroded till landform with clay remnants on one side of the valley and lacustrine sediments on the other. This varying morphology presented highly variable geotechnical conditions with significant design challenges. Groundwater conditions were controlled by regional aquifers that underlay the entire project area in addition to local unconfined aquifers that were also addressed. This paper presents the geotechnical design issues that were encountered in constructing the roadways and valley crossing. It addresses geotechnical conditions, foundation design, materials selection, groundwater control and construction issues that were addressed to successfully deliver this P3 project that is scheduled for completion in 2018.

• Record URL:
  https://www.tac-atc.ca/sites/default/files/conf_papers/cliftonw_-_geotechnical_considerations.pdf
• Corporate Authors:

  Transportation Association of Canada (TAC)

  401-1111 Prince of Wales Drive
  Ottawa, Ontario  Canada 
• Authors:
  • Clifton, W
• Conference:
  • TAC 2018: Innovation and Technology: Evolving Transportation - 2018 Conference and Exhibition of the Transportation Association of Canada
• Publication Date: 2018

Language

• English

Media Info

• Media Type: Web
• Pagination: 1 PDF file, 1.6 MB, 16p.
• Monograph Title: TAC 2018: Innovation and Technology: Evolving Transportation - 2018 Conference and Exhibition of the Transportation Association of Canada

Subject/Index Terms

• TRT Terms: Base course (Pavements); Bridges; Conferences; Construction; Design; Foundations; Groundwater; Highways; Soil mechanics; Stabilized materials; Subsoil
• Geographic Terms: Canada
• ITRD Terms: 3455: Bridge; 8018: Canada; 8525: Conference; 3655: Construction; 9011: Design (overall design); 3377: Foundation; 4383: Ground water; 2755: Highway; 3688: Roadbase stabilization; 5755: Soil mechanics; 2930: Subsoil
• Subject Areas: Bridges and other structures; Construction; Design; I42: Soil Mechanics; I50: Construction and Supervision of Construction;

Filing Info

• Accession Number: 01683289
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: ITRD, TAC
• Created Date: Oct 16 2018 2:05PM