city of boise

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Diversion, Pile , Sill, Wave Shaper
Nov, Dec 2011, Jan 2012. Construction photos showing pile driving at dam foundation, sill and wave shaper wall concrete work, flashboard installation, Wave Shaper II and III installation. Grouted boulder toe protection and self launched rock placement. Retaining wall construction from old Thurman mills Dam to Plaza at dam center line. Early work on Thurman Mills intake structure and river diversion.

Flashboards Raised Flashboards in raised position, river diversion closed and Boise River back in original stream bed Wave Shaper III water over Water over the dam. Wave Shaper III.
Wave Shaper II adjusting wave Wave Shaper II adjusting wave at low water with flash boards partially raised Grouting rock Grouting rock downstream of dam sill and wave shaper eddie pools
Downstream Rock Rock placed downstream of wave shapers and sill Install Wave Shaper III Install Wave Shaper III
Install Wave Shaper III Set middle section of wave shaper III in place Install Wave Shaper III Finish work on wave shaper, awaiting hydraulic components to complete erection.
December Work (2 of 4) December Work (1 of 4) From the Boise Riverbed, downstream of the diversion, things look like they're coming together ...
December Work (3 of 4) Flash Boards going in 3
Flash Boards going in 2 Flash Boards going in
Wave Shaper III and right side sill Right abutment sill
Final sill concrete pours Sill concrete Stripped Sill concrete stripped and finished showing Gate Anchor Bolts
Sill concrete Sill concrete and Gate Anchor Bolts Wave Shaper III Foundation Excavation Wave Shaper III Foundation Excavation and formwork being installed.
Wave Shaper III Rebar & Formwork in progress Sill Concrete Setting up to place concrete at Dam sill foundation
Retaining Wall Retaining Wall excavation and base Retaining wall forms and rebar
Retaining wall concrete backfilled Set H Pile at Wave Shaper III foundation Set H Pile at Wave Shaper III foundation
Pile left bank to grade 3-25-2011 Pile left bank to grade 3-25-2011 Foundation Excavation Foundation Excavation under Wave Shaper III prior to pile driving
Upstream Portadam Upstream Portadam diverts Boise River into Quins Pond by passing dam construction site Aerial View Boise River Diversion Aerial View of Boise River Diversion into Quinns Pond (top right) and out downstream of future dam.
River diversion Upstream Portadam diverts Boise River into Quins Pond Kayaking 36th street wave Kayaking 36th street wave during high water spring run off prior to fall construction 2011
Thurman Mills Formwork and reinforcing steel at Thurman Mills Intake structure Thurman Mills Intake Imbeds Setting Trash Rack Imbeds at Thurman Mills Intake Structure

 

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