Metro and its principals have a long history of work on dams, and have carried out condition assessment, supervision of construction, and restoration projects working as both a contractor and subcontractor.
Assessment work has included destructive and non-destructive testing as well as leakage testing.
Construction work has included various grouting and shotcrete applications.
Metro Concrete Restoration was the successful proponent for Metro Vancouver’s Tender in 2017 for the Spillway Bridge Repairs and Anchor Rehab on Seymour Falls Dam. Seymour Dam is situated inside one of the watersheds for Metro Vancouver’s fresh water supply. Our job was to replace the transvers deck joints to minimize leakage through the bridge deck.
Another aspect of the work was removing and reinstalling anchor plates and bolts on the dam itself. For this work we relied on Pacific Ropes High angle rope access. They were able to install over 700 plates and bolts without the need for scaffolding, or crane access. The most efficient use of available deck space and funds. Value of this project was $500,000.
The value was between 0 and 50,000 dollars. Metro Testing was directly involved in the shotcreting of the low level outlet (LLO) wall, overflow in-fill walls, in additional to providing materials testing and shotcrete consulting to the prime contractor, Graham Construction.
Cheakamus Dam underwent a large scale seismic upgrade which included the restoration of the bridge decks, LLO wall, LLO roof, and the construction of an emergency control structure and crane access platform.