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Yakima River Basin Water Storage Feasibility Study
Columbia-Cascades Area Office

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Photos of the Proposed Black Rock Damsite
February 2004 and December 2003
 

Drill setup with Horse Thief Point in background

February 2004 View of the drill setup on DH-04 at the alternate dam site. Horse Thief Point is in the background.

 

Core samples Core samples Core samples

February 2004 Core samples from alternate alignment potential dam site.
 
Local television station (KAPP) filming drilling operations.

February 2004 Local television station (KAPP) filming drilling operations.

 
PN Drill Crew loading additional steel casing

February 2004 Loading additional steel casing for the day's drilling work. Equipment storage and staging is about 2 miles southeast of the dam on private property. The landowner is also providing well water for drilling and testing. The Rattlesnake Hills are in the back ground.

 
Core sample of foundation bedrock
February 2004 Core sample of foundation bedrock from drill hole DH-04-1 at the alternate dam site.
 
Geophysicist with portable cable spool Personnel mixing polymer drilling fluid for core drilling

(Left) February 2004 Geophysicist with portable cable spool and cable equipment used for electrical resistivity testing. The resistivity tests are conducted over broad areas and provide data on the density and permeability of subsurface materials.

(Right) February 2004 Drill crew mixing polymer drilling fluid (mud) for core drilling. The fluid is used to lubricate the diamond bit and remove soil and rock cutting the the hole while drilling.

 
View of soil and rock core drilling equipmentDrilling operation, drill hole DH-04-1

(Left) February 2004 View of soil and rock core drilling equipment, including diamond bit, inner-core barrel and drill rods.

(Right) February 2004 Drilling operation, drill hole DH-04-1 at the alternate dam site.

 
Collecting geology information by drilling for Storage Study
December 6, 2003 Drill crew working on south side of State Highway 24. Test holes will determine depth to bedrock, which will affect design, construction, and cost. 
 

Collecting geologic information by drilling

December 6, 2003 Drill crew working on the north side of State Highway 24. Test holes will determine depth to bedrock, which will affect design, construction, and cost.

 

Last Update: March 27, 2012 1:25 PM