This Solicitation opportunity from Government of Canada was posted on June 3, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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OAK LAKE DAM SPILLWAY AND WEST DIKE UPGRADES MUNICIPALITY OF SIFTON

Closed

7682International

Submission Closed06/23/2026, 06:00:00 PM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

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NAICS: 237990

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City of Garden Grove

POSTED

about 12 hours ago

DEADLINE

in 24 days

AI Contract Overview

The contract entails comprehensive upgrades to the Oak Lake Dam structure, focusing on the replacement of the existing concrete spillway with a new rockfill overflow spillway featuring a sheet pile core cutoff, alongside partial demolition of the old concrete dam. Approximately 30 meters of augmented rockfill spillway will be constructed following excavation of the west dike, while 360 meters of the dike crest will be lowered to elevation 430.2 meters and an additional 2.5 kilometers topped up with impervious fill to elevation 430.75 meters. The west dike will also undergo full-length upstream and downstream riprap reconstruction, alongside the installation of a turf reinforcement mat across its entire length. Additional work includes the construction of an aquatic habitat enhancement shoal near the northern end of the east dike using 7,400 metric tonnes of offsetting rock. Site preparation includes extensive clearing, grubbing, stripping, and excavation of 13,200 cubic meters of waste material, coupled with precise cautious excavation and standby hours to ensure environmental and operational safety. Material specifications include 47,500 metric tonnes of Class 600, 800, and 900 riprap, 695 square meters of steel sheet piling, 33,700 square meters of geotextile, and 2,000 square meters of geogrid for structural stability, alongside 11,000 cubic meters of impervious backfill and 17,000 square meters of subgrade compaction to support the upgraded earthworks. Environmental protection measures encompass a turbidity barrier, fish salvage operations, and full environmental management procedures. Surface restoration includes 88,400 square meters of topsoil, 44,200 square meters of seeding and hydro-seeding with mulching. Mobilization, demobilization, access roads, cofferdam and water control systems, traffic control, survey, and material testing are all included as lump-sum provisions. Ice road construction and maintenance over eight stations are required for seasonal access. All bidders must comply with the solicitation details issued by Manitoba Transportation and Infrastructure, with responses due by June 23, 2026.

General Info

Oak Lake Dam upgrades: spillway demolition, rockfill construction, dike adjustments, environmental enhancements.

Agency

Government of Canada → Manitoba Transportation and Infrastructure - Tendering and Contracts

NAICS

237990 - Other Heavy and Civil Engineering Construction

Place of Performance

CAN

Set-Aside

NONE

Documents

No documents available

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Timeline

PhaseClosed

PostedJun 3

Solicitation

Response DeadlineJun 23

Deadline has passed

Submission Closed

06/23/2026, 06:00:00 PM UTC

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Organization & Contact Information

AgencyGovernment of Canada → Manitoba Transportation and Infrastructure - Tendering and Contracts

Contacts1 person available

OfficeN/A

Organization / Agency

Government of Canada → Manitoba Transportation and Infrastructure - Tendering and Contracts

Office AddressN/A

Contacts

Paige BrownContracting Authority

contact@example.gov

+1 (555) 000-0000

Full Description

Upgrades to the existing Oak Lake Dam fixed crest concrete spillway rock overflow dam including partial demolition of the existing concrete dam and construction of a new rockfill overflow spillway with a sheet pile core cutoff. The spillway upgrades includes excavation of the existing west dike and construction of 30 m of an augmented rockfill overflow spillway. Upgrades to the west dike includes lowering of approximately 360 m of dike crest to El. 430.2 m and topping up of approximately 2.5 km of crest to El. 430.75 m with impervious fill. The west dike upgrades also include upstream riprap reconstruction, downstream riprap placement, and installation of turf reinforcement mat along the full length of the west dike. Construction of an aquatic habitat enhancement shoal near the northern limits of the East Dike. code : 100description : Mobilization and Demobilizationquantity : 1unitOfMeasure : Lump-Sumcode : 5966description : Access Roads and Site Works Roadsquantity : 1unitOfMeasure : Lump-Sumcode : 5771description : Environmental Management Proceduresquantity : 1unitOfMeasure : Lump-Sumcode : 5640description : Cofferdam Constructionquantity : 1unitOfMeasure : Lump-Sumcode : 5979description : Water Controlquantity : 1unitOfMeasure : Lump-Sumcode : 1280description : Fish Salvagequantity : 1unitOfMeasure : Lump-Sumcode : 403description : Supply of Field Office, Class Bquantity : 1unitOfMeasure : Lump-Sumcode : 102description : Traffic Control Level IIquantity : 1unitOfMeasure : Lump-Sumcode : 3139description : Surveyquantity : 1unitOfMeasure : Lump-Sumcode : 1437description : Material Testing Allowancequantity : 1unitOfMeasure : Lump-Sumcode : 5920description : Demolition and Removal of Existing Structuresquantity : 1unitOfMeasure : Lump-Sumcode : 1197description : Turbidity Barrierquantity : 1unitOfMeasure : Lump-Sumcode : 606description : Clearing and Grubbingquantity : 44unitOfMeasure : Stationcode : 834description : Stripping Slopesquantity : 44unitOfMeasure : Stationcode : 172description : Waste Excavationquantity : 13200unitOfMeasure : Cubic Metercode : 7006description : Cautious Excavationquantity : 50unitOfMeasure : Hourcode : 182description : Standbyquantity : 50unitOfMeasure : Hourcode : 1367description : Salvaging Stone Riprapquantity : 18000unitOfMeasure : Cubic Metercode : 5514description : Subgrade Compactionquantity : 17000unitOfMeasure : Square Metercode : 6030description : Impervious Backfillquantity : 11000unitOfMeasure : Cubic Metercode : 3117description : Supply and Installation of Geotextile Fabricquantity : 33700unitOfMeasure : Square Metercode : 389description : Supply and Install Geogridquantity : 2000unitOfMeasure : Square Metercode : 252description : Supply/Deposit Traffic Gravel Class "C"quantity : 4600unitOfMeasure : Metric Ton/Tonnecode : 982description : Hydraulic Excavatorquantity : 50unitOfMeasure : Hourcode : 659description : Semi-Trailer Truckquantity : 100unitOfMeasure : Hourcode : 7000description : Rip Rap Beddingquantity : 2000unitOfMeasure : Metric Ton/Tonnecode : 218description : Stone Rip Rap, Class 600quantity : 4750unitOfMeasure : Metric Ton/Tonnecode : 7001description : Stone Rip Rap, Class 800quantity : 4100unitOfMeasure : Metric Ton/Tonnecode : 1242description : Stone Rip Rap, Class 900quantity : 43300unitOfMeasure : Metric Ton/Tonnecode : 1218description : Steel Sheet Pilingquantity : 695unitOfMeasure : Square Metercode : 7003description : Supply and Install Turf Reinforcement Matquantity : 44200unitOfMeasure : Square Metercode : 5686description : Topsoilquantity : 88400unitOfMeasure : Square Metercode : 1074description : Seedingquantity : 44200unitOfMeasure : Square Metercode : 705description : Hydro-Seeding & Mulchingquantity : 44200unitOfMeasure : Square Metercode : 7004description : Ice Road Construction and Maintenancequantity : 8unitOfMeasure : Stationcode : 7005description : Offsetting Rock Shoalquantity : 7400unitOfMeasure : Metric Ton/TonneBidding and Documents are available on http://www.merx.com. Fees may apply; See https://www.merx.com/public/pricing for more information.