TILDEN LAKE DAM REPLACEMENT

Timeline: 2019 - 2021

Location: North Bay, Ontario

Description:

Replacement of the Tilden Lake Dam included the construction of a by-pass channel to divert water from Tilden Lake around the construction limits into the Tomiko River, construction of a new gravity dam, and the demolition of the existing Tilden Lake Dam.

DIVERSION CHANNEL OPERATION

The diversion channel was operated during the construction phase of the dam and was able to adjust to accommodate any changes in flow as required.

DIVERSION CHANNEL CONSTRUCTION

Construction of a 50m sheet pile diversion channel. Complete with concrete bottom, sheet pile walls, cut-off wall at inlet, and operational stop log gate.

CONSTRUCTION OF CONCRETE GRAVITY DAM

Concrete forming, placement, finishing and curing of footings, two piers, two abutments and wingwalls, and 25m ogee weir.