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Blue Lake Expansion - UPDATE September 2013
 

Blue Lake Expansion - UPDATE September 2013

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Project manager Dean Orbison's update on the Blue Lake Hydro Expansion, presented to the Sitka Chamber of Commerce on Sep 4, 2013.

Project manager Dean Orbison's update on the Blue Lake Hydro Expansion, presented to the Sitka Chamber of Commerce on Sep 4, 2013.

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  • Let’s show a plan view or photograph. So far it is not obvious that this dam is curved with a rather short radius.

Blue Lake Expansion - UPDATE September 2013 Blue Lake Expansion - UPDATE September 2013 Presentation Transcript

  • BLUELAKEEXPANSION PROJECT
  • Project Organizational Chart Crux Subsurface (Grouting Sub) City and Borough of Sitka (Owner) McMillen, LLC (Construction Manager) Barnard Construction (General Contractor) ASRC McGraw (Powerhouse Sub) Southeast Earthmovers (Excavation Sub) Blue Lake Tunnelers (Tunneling Sub) Schmolk (Mechanical Sub) NAES (Electrical Sub)
  • DAMRAISESPILLWAYELEVATIONANDSECTION
  • MODEL DEPICTING DAM RAISE, THRUST BLOCK, ABUTMENTS, DRAINAGE TUNNEL AND PLUNGE POOL.
  • Dam Site Staging Area with 600 Ton Crane
  • First Concrete Pour on Right Side of Dam (6of 79blocksarenowcomplete)
  • Left Abutment and Left Side Dam Raise
  • INTAKE SITE PLAN DRAINAGE TUNNEL
  • INTAKE STRUCTURE PROFILE
  • Intake PortalLocation Right Abutment, Right Side Dam Raise and Intake Portal
  • Intake Portal
  • Intake Portal (when under construction)
  • Gate Shaft Top Portal
  • Bottom of Gate Shaft
  • POWERHOUSE SITE GENERAL LAYOUT
  • SURGE CHAMBER PROFILE
  • Inside theAdit Tunnel
  • Lower Project Site
  • New Powerhouse Site
  • Turbine Pit Wall Pour 1
  • New Penstock at SCIP
  • Turbine Generator Parts Stored on Site
  • Generation Outage All work in the existing tunnel and new penstock must be completed during the generation outage when the tunnel will be sealed and dewatered. The generation outage will be scheduled during August and September 2014 so that the new intake may be submerged to allow commissioning of the generation equipment.
  • 2014-2015RESERVOIR Operating Levels
  • Lake Levels
  • Blue Lake Expansion aerialphoto
  • Construction Schedule Milestones: Planned/Actual Construction Start 11-20-2012 / 12-03-2012 Drainage Tunnel Complete 07-01-2013 / 05-05-2013 Tunnel ex. complete 08-19-2013 / 07-24-2013 Construct Powerhouse 08-24-2014/ Construct Dam 08-24-2014/ Ready for Generation Outage 08-24-2014/ Substantial Completion 02-01-2015/
  • Questions? www.bluelakeexpansion.com