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Chief Joseph Dam – Bridgeport, WA
200 Miles
Ch Chie ief f Jo Joseph h Fis ish Ha Hatch chery ry Chief - - PowerPoint PPT Presentation
Ch Chie ief f Jo Joseph h Fis ish Ha Hatch chery ry Chief - - PowerPoint PPT Presentation
Ch Chie ief f Jo Joseph h Fis ish Ha Hatch chery ry Chief Joseph Dam Bridgeport, WA 200 Miles ON COLUMBI MBIA RIVER, R, EAST T OF BRIDGEPORT IDGEPORT, , WA 2 ND ND LARGEST ST POWER R PROD ODUCI CING DAM M IN THE
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ON COLUMBI MBIA RIVER, R, EAST T OF BRIDGEPORT IDGEPORT, , WA
2ND
ND LARGEST
ST POWER R PROD ODUCI CING DAM M IN THE U.S. S.
OPERA RATE TED BY US Army Corps s of Engin ineers ers, , Power er from Dam suppli lied to BPA
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Owner – Bonneville Power Administration Designer/Owner’s Representative – TetraTech End User – Confederated Tribes of the Colville Reservation Additional Stakeholders
- US Army Corps of Engineers
- Washington State Parks
- Douglas County PUD
- Grant County PUD
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Promised to Colville Tribe when Dam System added
to Columbia River
Confederated Tribes of the Colville Reservation will
use and operate the Hatchery after completion
Hatchery intended to produce approx1.9 Million
salmon each year
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Auxiliary Facilities includes:
- 2 Acclimation Ponds (sites north of the Hatchery)
- Employee Housing complex
- Well field northeast of the Hatchery
- Hatchery complex includes:
Office Building, Hatchery Building, Storage Building, Head Box, Raceways, 3 Fish Rearing Ponds, and Fish Ladder/Spawning Facility
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Preconstruction Start January, 2009; Finish June,
2010
Separate contract for Well Fields
- Start October, 2009; Finish March, 2010
Phase I contract originally included Acclimation
Ponds and Housing
- Start June, 2010; Finish February, 2011
Phase II (Change Order) for Hatchery Facility
- Start December, 2010; Finish April, 2013
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Well Fields – $665,000 Preconstruction Services – $167,000 Hatchery Facility –
- Orig Contract amount – $43 Million
- Final Contract amount - $51 Million
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Actual Broodstock Schedule
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Precon Activities
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PCL developed Bid Scope packages during
- preconstruction. Worked with Owner on
Subcontractor selection
TERO bid preferences – sliding scale All trades hiring through TERO office
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3 Sided Cofferdam w/Brace Frame – Water
Elevation 784’
- Costs - $517K, Schedule – 2 Week impact
- Assume no ground water migration
4 Sided Cofferdam w/Brace Frame and Work
Tressle – Water Elevation 795’
- Costs - $2M ($1.2M cofferdam & $900K Schedule)
- Schedule – 14 Week impact
- Seal slab and uplift piles required
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PCL used conventional Peri panelized forms Engaged Hatchery Manager late in the process –
Discovered wall finish was susceptible to spreading bacteria between sections
Result was extensive sacking and patching of
Raceway walls
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Raceway Wall Finish Option # 1A
Formwork rmwork Type / Summary: mary:
Steel Forms
Rental of two bays of formwork for duration
Assume 75% crane support for activities
Schedule/manpower limited by labor available in remote area
Fini nish h Type / Level el of Fini nish sh Expected ected:
Sack and Patch walls after stripping
Allows 24 cure required by specifications
Bug holes and joints filled to prevent areas for disease to build-up
Eliminates ridges/sharp transitions for fish
Engine ineeri ering/C ng/Cons
- nstr
truct uctab abili lity ty Consi sidera deratio tions ns:
Fewer and smoother joint transitions than most panelized systems
Forms more susceptible to heat during hot summers
Less adaptable to changes
Heavy crane useage
Maintenance required long term for finish/cement that eventually will flake off at joints
Cost st*: See Atta tached hed
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