Shebandowan Mine Dam Safety

Riprap embankment and shoreline at Shebandowan Mine during a dam safety review.

Project Overview

Location: Thunder Bay, ON
Client: Vale
Services: Engineering, Geotechnical & Dam Engineering, Environmental
Sector: Mining

Project Description

Vale's Shebandowan Mine site northwest of Thunder Bay includes multiple water-retaining and stormwater management structures associated with the former mining operation. TULLOCH completed a Dam Safety Review covering six tailings dams, one spillway, and one mill stormwater runoff management pond.

The assignment combined data review, field investigation, instrumentation, dam-safety analysis, and failure-mode assessment to evaluate the condition and performance of the impoundment facilities and support ongoing risk management.

As part of a separate scope, TULLOCH provides coordinated technical and field environmental support that helps Vale manage risks and meet ongoing regulatory requirements.

Scope of Services

  • Data collection and review
  • Geotechnical investigation and instrumentation installations
  • Dam Safety Review analysis and evaluation
  • Failure Modes and Effects Analysis
  • Mine care and closure inspections, sampling, monitoring, reporting, and contract administration

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