Nyrstar Mine - Thelwood Lake Dam Safety Works

Strathcona Provincial Park
Completion Date: 
September, 2015

Construction of an emergency Spillway and breach of primary Dam facility to ensure lake levels are maintained to prevent failure of primary Dam facilities.

Thelwood #2 - Hand removal of approximately 150 m3 of solid rock as an overflow spillway.

Thelwood #3 - Flying a 20 ton excavactor into an alpine work zone, partial control breach of failing dam.