Approximately 120,000 m 2, or 78%, of Phase 1 dam foundation preparation was completed with subgrade approval by the engineer of record.Production and placement of the upstream filter layers which consists of two zones of crushed rock (“Zone 1” material at 25 mm minus, and “Zone 2” material at 75 mm minus) commenced in late August.Īt September 3, 2023, TMF progress was as follows: Construction of the Phase 1 main dam commenced in July with preparation of the till and bedrock foundation, and subsequent placement of mine waste rock (“Zone 6” material with 600 mm minus sizing). Temporary water management ditches and collection ponds were developed between May and June of this year, and a construction access road on the downstream side of the main dam was completed in August. WSP (formerly Golder Associates Ltd.) is the designer and engineer of record and provides on-site construction quality assurance services.Ĭonstruction of the TMF commenced with grubbing of the site during the fall-winter of 2022-2023. performs quality control on-site material laboratory testing.
The TMF is being constructed by the Project’s principal earthworks contractor JCL (Investments Inc.) of Cornerbrook, Newfoundland and Labrador. The upstream face of the dam will be lined with a geomembrane which is anchored into low-permeability foundation till, and which will extend approximately 100m upstream of the dam toe. It is formed by constructing a perimeter zoned rockfill embankment dam, which will be raised in 6 phases during the first 10 years of the Project.
The Project’s TMF will be a thickened tailings facility with a capacity of 31.6 Mtonnes. This is a noteworthy accomplishment of our contracting partners, JCL, AllRock and WSP, and our construction management team.”įigure 1: Overview of TMF Construction, September 2, 2023 The steady progress of the TMF without major surprises significantly de-risks the construction of the overall Project. After a productive summer, we are well advanced with the construction of the rock foundation of the main TMF embankment, which is achieving its requisite engineering and geotechnical specifications. As the largest civil construction undertaking of the Project, the timely completion of the TMF is an important element of the Project’s ultimate success. Manson continued: “In this news release, we are bringing particular attention to the progress being made at our Tailings Management Facility. In August we surpassed 3 million tonnes of mined waste rock project-to-date, amply supporting our construction work.” The main production haul road between the Leprechaun and Marathon pits has been completed and mining at Marathon has commenced. Process plant concrete foundations are well advanced, and the erection of structural steel for the mill building is expected to commence shortly. Matt Manson, President and CEO commented: “Over the last three months we have made significant construction progress at Valentine in each of our principal work-fronts: the process plant site, mine infrastructure, and our TMF. The TMF is a major infrastructure element of the Project, and noteworthy advancement has been achieved during the summer construction season.
Tip drill video vimeo update#
07, 2023 (GLOBE NEWSWIRE) - Marathon Gold Corporation (“Marathon” or the “Company” TSX: MOZ) is pleased to provide an update on construction at the Tailings Management Facility (“TMF”) of the Valentine Gold Project (the “Project”).
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