CanadaBuys #7682

Oak Lake Dam Spillway and West Dike Upgrade Solicitation

Manitoba Transportation and Infrastructure is seeking competitive bids for upgrades to the Oak Lake Dam spillway and west dike in the Municipality of Sifton. - Scope includes: - Partial demolition of the existing concrete dam - Construction of a new rockfill overflow spillway with sheet pile core cutoff - Excavation and augmentation of the west dike, including lowering and topping up the dike crest with impervious fill - Riprap reconstruction and installation of turf reinforcement mat - Construction of an aquatic habitat enhancement shoal near the East Dike - Services and construction activities requested: - Mobilization, access roads, environmental management, cofferdam construction, water control, fish salvage - Supply of field office, traffic control, survey, material testing, demolition, turbidity barrier, clearing, grubbing, excavation, standby - Salvaging stone riprap, subgrade compaction, impervious backfill, geotextile fabric and geogrid installation - Traffic gravel supply, hydraulic excavator, semi-trailer truck, rip rap bedding, stone rip rap (multiple classes), steel sheet piling - Turf reinforcement mat installation, topsoil, seeding, hydro-seeding and mulching, ice road construction, offsetting rock shoal - No specific OEMs or vendors are named in the solicitation - Work will be performed at Oak Lake Dam, Municipality of Sifton, with contracting office in Winnipeg - Notable requirements include environmental management, fish salvage, aquatic habitat enhancement, and extensive material supply and installation

Description

This solicitation is for upgrades to the existing Oak Lake Dam fixed crest concrete spillway rock overflow dam, including partial demolition and construction of a new rockfill overflow spillway with a sheet pile core cutoff. The project also involves excavation and augmentation of the west dike, including lowering and topping up the dike crest with impervious fill, riprap reconstruction, and installation of turf reinforcement mat. Additionally, construction of an aquatic habitat enhancement shoal near the northern limits of the East Dike is included. The contract duration is estimated to start on 2026/07/21.

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