+ All Categories
Home > Documents > CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee...

CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee...

Date post: 22-Aug-2020
Category:
Upload: others
View: 3 times
Download: 0 times
Share this document with a friend
20
CUSHMAN HYDROELECTRIC PROJECT Pat McCarty, Generation Manager
Transcript
Page 1: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

CUSHMAN

HYDROELECTRIC PROJECT

Pat McCarty, Generation Manager

Page 2: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

2

AGENDA

A picture tour of Cushman

Relicense history

Relicense requirements • Fisheries

• Flows & reservoir elevations

• Cultural/historical resources

• Recreation

• Wildlife

• Shoreline management

Page 3: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

3

• Construction begins on Cushman No.2

19

29

• Cushman No.2 starts generating power on New Year’s Eve

19

30

EARLY CUSHMAN HISTORY

• Enough water in reservoir to open gates and generate power

• President Coolidge hits a telegraph key in Washington, D.C., starting the turbines

19

26

19

24

• Federal Power Commission issues a 50-year license • Construction begins on Cushman No. 1

Page 4: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

4

North Fork Skokomish River

Lake Cushman

North Fork Skokomish River

Power Tunnel and Penstocks

Cushman No. 2 Powerhouse

No. 1 Dam and Powerhouse

Lake Kokanee

No. 2 Dam Hood Canal

Page 5: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

5

CUSHMAN NO. 1 DAM

• 1100 feet long

• Retains 10-mile long Lake Cushman

• Completed in 1926

• 235 feet tall

Page 6: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

6

CUSHMAN NO. 1 POWERHOUSE

• Two, 22-megawatt turbine

generators

• Accessible by aerial tram

Page 7: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

7

CUSHMAN NO. 2 DAM

• 575 feet long

• Retains two-mile long Lake Kokanee

• Completed in 1930

• 175 feet tall

Page 8: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

8

CUSHMAN NO. 2 POWERHOUSE

• Three, 27-megawatt turbine generators

• Water flows 2.5 miles through 17-foot-diameter

power tunnel from Lake Kokanee

Page 9: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

9

RELICENSE HISTORY

1924: Federal Power Commission issues the Cushman Project a license for 50 years

1974: Original license expires, Tacoma submits application for relicense

1998- Federal Energy Regulatory Commission (FERC)

2006: issues relicense, appeals and lawsuits filed

2009: Settlement agreement reached

2010: 50-year FERC license issued (through 2048) with numerous requirements

Page 10: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

10

QUESTIONS

What is the clearing and work at Lake

Kokanee?

What is the status of public parking at Lake

Kokanee?

Page 11: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

11

FISHERIES REQUIREMENTS

North Fork Hatchery • Raise over 400,000

Chinook, Steelhead

and Coho smolts to

plant in the North Fork below the dam

• New 10 stall boat

trailer and vehicle

parking lot across

from launch

Lake Kokanee

Lake Kokanee

Page 12: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

12

FISHERIES REQUIREMENTS

Saltwater Park Hatchery

Saltwater Park – Skokomish

Tribe

• Operational in 2015

• Raise 2 million sockeye fry per year to plant in Lake Cushman

• Uses spring water from hillside

Page 13: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

13

FISHERIES REQUIREMENTS

Upstream fish passage

• The Fish Collection Facility

provides fish passage over

the Cushman No. 2 dam via

tramway

• Includes two generator units

to pass water into the North

Fork while generating

enough of clean, renewable

energy to serve about 1,700

Northwest homes

Page 14: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

14

QUESTIONS

What is in the white tent at Skokomish Park at

Lake Cushman?

What is going on at the Dam at Lake

Cushman?

Page 15: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

FISHERIES REQUIREMENTS

Downstream fish passage • Juvenile fish collector in

Lake Cushman will collect juvenile salmon wanting to migrate to the ocean

• Nets will keep fish from entering the turbines

• Fish will be transported and released into the North Fork Skokomish River at the base of Cushman No. 2 Dam

Page 16: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

16

Flows and elevation • Continuous flows into the North Fork Skokomish

• Lake Cushman elevation between 735 and 738 feet from Memorial Day to Labor Day

Cultural/historical resources

Recreation • Construction of 40 new campsites at Big Creek

Campground

• Picnic sites on Staircase Road, new biking trail, trailhead improvements and more

Wildlife • 2,700 acres of wildlife lands

• Habitat improvements for elk, osprey, wood ducks,

bats

OTHER RELICENSE REQUIREMENTS

Page 17: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

17

What is the shoreline management plan? • Identifies rules Tacoma Power must enforce for

environmental, safety and operational reasons

• Cushman plan similar to plans for other FERC licensed projects

Enforcement • Tacoma Power must survey and identify structures

out of compliance, report to FERC by Aug. 2015

• Permit renewal

• Cultural evaluation

Transition plan still in development

SHORELINE MANAGEMENT REQUIREMENTS

Page 18: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

18

MEET SOME OF THE TACOMA POWER TEAM

Keith Underwood, Natural Resources Manager

Bret Forrester, Wildlife and Lands Manager

Dennis Koehn, Cushman Hydro Project Manager

Andy Ollenburg, Cushman Fish Facilities Manager

Steve Fischer, Construction Project Manager

Page 19: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

19

WANT MORE INFO?

Stations located throughout room Land Management / Recreation

• Shoreline and Lake Uses

• Wildlife

• Cultural Resources

• Recreation Construction

• Lake Cushman Debris Removal

Page 20: CUSHMAN HYDROELECTRIC PROJECT · trailer and vehicle parking lot across from launch Lake Kokanee ... Recreation •Construction of ... •Cultural evaluation Transition plan still

20

WANT MORE INFO?

More stations Fisheries and Facilities

• Juvenile Fish Collection at Cushman 1 Dam

• Fish Hatcheries

• Adult Fish Collection at Cushman 2 Dam

• Lake Kokanee Rainbow Trout Releases

Please help yourself to refreshments


Recommended