Coastal Gaslink – Endako Entry
Engineered a custom strut system and hydro-barrier for Coastal Gaslink that deployed a rapid stabilization strategy and safeguarded sensitive waterways.
Shoring
Trans Mountain Expansion – Clearwater DPI Entry
Arch delivered urgent structural solutions for the entry way that stabilized the excavation and safeguarded thruster installation in Clearwater.
Deep Valley South Excavation
Arch Engineers designed a deep excavation support system in a South Valley creek area, using struts to manage unstable soils and protect the environment.
Slope Stabilization and Excavation Shoring on Pipeline
Arch Engineers provided pipeline slope stabilization and excavation shoring designs for 200+ projects, ensuring strength and security.
Clearwater DPI
Arch Engineers revised DPI pit designs during construction to address boulders and maintain schedule on the trenchless crossing.
Valemount KP541 Pits
A misapplied design from an adjacent contractor led to critical instability—Arch Engineers stepped in to halt work, stabilize the site, and safely guide the project to completion.
Fish Habitat Offsetting Plan
Arch engineered 600 m of deep shoring through wetlands; blending access and ecology as part of a bold Fish Habitat Offsetting Plan.
Endako River Sheet Pile and Shoring Design
Engineered deep pits and sheet pile shoring for in-water isolation, enabling major HDD installation under pressing timelines.
Flood Protection with Retaining System
Rapid response to Groat 25 bridge flooding, designing a retaining wall with sheet piles and tie-backs for effective flood protection.
California High Speed Rail Utility Corridor
Arch Engineers developed a tender package, assessed vendors, and supported contracts and planning for the High Speed Rail project.