BLUE LAKE EXPANSION

The Blue Lake Tunnelers JV recently completed phase #1 of the Blue Lake Expansion Project (expansion and upgrade to the existing hydroelectric facility in Sitka, AK). New tunnels and shafts were constructed at two, distinctly different sites-up at the dam and down at the powerhouse. Both tunnels were constructed using conventional Drill-and-Blast excavation. This project included:

  • (1) 800-ft. Power Tunnel Intake
  • (1) 140-ft. Drainage Tunnel
  • (1) 400-ft. Access Adit
  • (1) 11-ft. diameter, 360VF Shaft
  • (1) 100-VF Gate Shaft

Services/Methods Performed:

FAST FACTS:

LOCATION: Sitka, AK

MARKET: Power/Hydroelectric

OWNER: Barnard Construction Company, Inc.

CONTRACTOR: RFK Blue Lake Tunnelers (JS Redpath & Frontier-Kemper)

START DATE: 2013

END DATE: August 2014