NORTH FORK SKOKOMISH POWERHOUSE & FISH FACILITIES

2014 NWHAGeneration on the Upgrade

Matthew Wilson, P.E.

PROJECT LOCATION – CUSHMAN HYDROELECTRIC PROJECT

GENERAL INFORMATION

• TIMELINE = FEBRUARY 2011 – JULY 2013 • PROVIDES UPSTREAM & DOWNSTREAM FISH PASSAGE

• ADDITION OF 3.6 MW

• FEDERAL ARRA GRANT = $4,671,304

• CONSTRUCTION CONTRACT = $15,087,007

• TURBINE GENERATOR AND EQUIPMENT = $4,313,723

• TOTAL LABOR HRS. WORKED = 69,823

SOLIDWORKS RENDERING AERIAL PHOTO

SOLIDWORKS RENDERING AERIAL PHOTO

POWERHOUSE AND FISH COLLECTION

BEFORE AFTER

FISH TRAM

BEFORE AFTER

LESSONS LEARNED

1. Know Your Geology a) Pre-construction field studies are important but

don’t eliminate all risk.

1. Know your Geology – Micropiles

LESSONS LEARNED

2. Planning Space

LESSONS LEARNED

2. Planning Space

LESSONS LEARNED

3. Think About Maintenance

LESSONS LEARNED

4. Don’t Hide the Details a) If it’s important, make it obvious b) Tell the Contractor your dimensional tolerances c) Design in such a way that eliminates Contractor

mistakes

16

Trades Categories Journeyman Hours Apprenticeship Hours

Sub-Total Hours

Apprenticeship Share of Total Labor Hours %

Carpenters/Millwright/Diving 20,111 3,929 24,040 5.6

Laborer/Pipe layer/Fencing 13,070 3,040 16,110 4.3

Operators 9,610 1,868 11,478 2.6

Electricians 9,561 3,330 12,891 4.7

Other 4,782 522 5,364 0.8

Total 57,134 12,689 69,823 18.2

REC Credits Goal : 15% Apprenticeship

Labor

Initiative 937, approved by the voters of Washington State in November of 2006, establishedthat renewable energy projects that commence operation after December 31, 2005 having aminimum level of apprenticeship labor will obtain a credit towards the utility’s renewableenergy target.