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Mining Reclamation & Remediation

Mining Reclamation & Remediation

90 km North of Fort McMurray, AB

$36,500,000

Unit Rate

Oil & Gas

Project Summary:

  • Ongoing civil earthworks projects in relation to Base Mine oil sands project, located in Alberta’s Athabasca region.
  • Pond construction and material placement – 800,000 m3.
  • Tailings pond placement – 50,000 m3 winter subsoil and topsoil placement for new construction.
  • Tailings pond ditching – 15,000 m3 excavation and final grading.
  • Reclamation stripping, berm construction and erosion control.
  • Riprap, gravel placement and geotextile / culvert / pipe installation.
  • Road widening – 4 km of road subgrade construction, gravel placement, and parallel ditch construction.
  • Reclamation landforming – grading work to reclaim waste dump areas.
  • Pitwall liner construction – 146,000 m3 haul and placement of material.
  • Tailings pond infill – 80,000 m3 haul and placement of sand infill on an active dyke.
  • Peat salvage – load, haul, and stockpile – 750,000 m3.
  • Road construction – 5 km.
  • Drain system construction – 5.5 km of bell-spigot and fused HDPE.
  • Pipeline corridor grading – 3 km.
  • Ditch excavation for peat and site drainage – 500,000 m3.
  • Berm and dyke placement.
  • Final grading of gravels for laydowns and quonset pads – 10,000 m3.
  • Installation of culverts, sleeves, and crossings.
  • Gravel hauling and stockpile for winter traction on haul roads – 20,000 m3.
  • Digby Sump Liner
    • Construction of surface fluid pond.
  • Dyke 11B Cut Pond 8A
  • TRO Kame Ditching
    • Excavating 4 km drainage ditch and installation of 1.5 m diameter culvert.
    • Dewater existing ditch, backfill 40,000 m3 material and graded for drainage.
  • Dewatering Landforming
  • Sand Dump 8 - MD4 Liner
  • Tailings Run Off (TRO) Mitigation
    • Reclamation stripping and casting of 21,000 m3 peat to prepare ditch cut.
    • Construct 500 m new drainage ditches and1 m high containment berm.
    • Install 3 drainage tailing pipes, rip rap supply and placement around drainage structures, slope excavation of 5,000 m3 and placed at stockpile.
  • South Tailings Pond Perimeter Ditching
    • Excavate 15,000 m3 silt and vegetation from existing 250 m ditch to allow proper drainage, excavated material hauled and place on berms.
    • Final grading performed by GPS survey with excavator and dozer.
  • RMS 2 Pile Rehandle
    • 2018 - 8 km Haul and place of 900,000 m3 peat material & 7 km haul and place 1,400,000 m3 upland material.
  • Rejects Management 1st Froth
  • RMS 7 Peat Salvage & Advance Road
    • Load, haul & place 1,100,000 m3 to permanent landfill cell. Construct & maintain temporary 2 km access road. Strip peat layer. Construct perimeter and cross ditches.
  • No Net Loss Lake & Toe Drain System
    • Construct 5,445 m drain system. Construct access road. Excavate, haul and place embankment at dyke, ram, crossover. Finish grading of corridor. Placement of pipe overburden. Berm construction.

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