The Silvertip Mine is a high grade silver-lead-zinc concentrator and underground mine located in northern British Columbia, approximately 16 kilometres south of the Yukon border and 90 kilometres southwest of Watson Lake. The site is located within the Silvertip Creek valley, in the Tootsee River Watershed.
Allnorth was contracted by Silvercorp to provide preliminary process and surface infrastructure design for the proposed Silvertip mine. Allnorth prepared a study that included test work with an accredited laboratory to determine the best process for recovering the ore. Through the design Allnorth determined a method to sequester potentially acid generating (PAG) rock into the paste backfill and dewater the remaining tailings for dry stacking. This eliminated the need for a tailings pond and dam.
The project was sold to JDS Silver in 2013. In 2014 Allnorth evaluated the Rancharia Bridge along the Silvertip site access road and also assisted with the access road special use permit. In 2015 Allnorth conducted the mineral lease legal survey and conducted survey and materials testing throughout construction in 2015 and 2016.
Allnorth was subsequently retained to provide detailed engineering of the process plant. This included dismantling and relocating an existing concentrator facility and the installation of a new paste plant.
Allnorth's responsibilities for the project included:
- Feasibility Studies
- Test work supervision
- Bridge evaluation
- Permit support
- Mineral lease legal survey
- Material testing
- Construction survey
Detailed Engineering and Design services included:
- Structural steel and concrete
- Instrumentation and Controls
- Programming and onsite commissioning
Services in this project
Allnorth has the personnel and resources to effectively manage entire projects from concept to construction.
Electrical & Instrumentation Engineering
Allnorth offers a complete electrical and instrumentation (E & I) systems package – engineering, installation, integration testing, commissioning, and field services.
Allnorth provides on-site and office-based materials testing services that complement our construction management and surveying services. Using mobile testing laboratories, Allnorth’s technicians conduct standard tests for concrete, asphalt, and aggregates and soils.
Allnorth provides comprehensive mechanical and piping engineering services to industrial projects. Our in-house multidisciplinary expertise allows Allnorth to offer integrated service packages for clients in multiple sectors.
Allnorth provides integrated process engineering service packages for industrial projects. We recognize that downtime is expensive for our clients, so our teams specialize in retrofitting new systems into existing operations with minimal disruption.
Project and Construction Management
At Allnorth, we believe that communication and teamwork, from start to finish, are key to the successful execution of any project. We work closely with our clients to plan and manage projects from initial concept through to delivery.
Allnorth provides comprehensive structural engineering design services for industrial, commercial, and municipal clients. We design short- and long-span bridge structures; municipal, industrial, and commercial buildings; and temporary construction works.
Our experienced team of professional and technical survey staff use Real Time Kinematic (RTK) GPS, robotic total stations, CADD On Site, and 3D laser scanning to support projects in a variety of industries.
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Recent NewsJanuary 21st, 2019
Olav Mejia, MASc, P.Eng., Allnorth, along with Bern Klein, Ph.D., P.Eng., University of British Columbia, will be presenting a paper at the 51st Canadian Mineral Processors Conference.Read More