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Multimedia Gallery Display
Willow Island 2012
Images
Videos
December -
Excavated rock from main sump and prepping for mud slab
December -
MWH - Formwork and rebar for the tailrace base slab
December -
MWH - Slope stabilization
November -
First structural concrete pour
November -
Welding of the draft tube liner sections
November -
First nonstructural concrete pour
November -
Continued rock excavation
October -
First tower crane installed
October -
Rock excavation
October -
Rebar cage for rock anchor head in place
October -
Line drilling perimeter of the site
September -
Pouring the anchor blocks
September -
Upstream SOE wall (water infiltration)
September -
Downstream SOE wall and rock anchor pits 11 & 12
September -
Site overview
August -
Aerial view
August -
Extensive rebar and formwork required for rock anchor head
August -
Installing whalers on Support of Excavation (SOE) wall
July -
View of the site looking downstream
July -
Upstream support of structure wall
July -
Erecting the wet belt - batch plant equipment
June -
Erecting temporary storage facilities
June -
Soldier pile installation
June -
Batch plant underground electrical conduit stub ups
June -
Pouring concrete for fuel tank slab
May -
Well drilling
May -
Pulling old cell sheets after demolition of existing weir
May -
Constructing the flood wall
May -
Continued excavation
April -
Demolition of the existing overflow weir and overburden excavation
April -
View of the grading of the Emergency Floodgate Structure
April -
View of the dewatering system treatment plant
April -
Aerial view
March -
Temporary barge unloading facility
March -
Weighted berm construction downstream
March -
View of unwatering pumping operation
February -
Installing filter fabric and cutting sheets to elevation
February -
Leveling out material on the weighting berm
February -
Backfilling upstream cells from barges on river
February -
Dumping materials for upstream weighting berm from the top of the cell
January -
Upstream cofferdam complete
January -
Cofferdam closed on the downstream cell (fill needed)
January -
Cofferdam nearly filled on the downstream
January -
Cofferdam nearly closed on the downstream