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Greenville, California
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February 9, 2011     Indian Valley Record
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February 9, 2011
 
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Bulletin, Progressive, Record, Reporter Wednesday, Feb. 9, 2011 1B INSIDE SECTION B: EDITORIAL AND OPINION • UPCOMING EVENTS - - ............................ t I O t The preparation on the Spanish Creek Bridge project has been an impressive endeavor in itself. A rock face bordering the road vanished and steep dirt roadways appeared, providing vertigo- inducing paths for a fleet of construction and digging equipment. The Caltrans project recently ran into a pocket of shale, a clay-based rock, which wouldn't break up when workers drilled into it. This led to the use of a directional blast to shatter the rock, making it easier to remove. Photcs by Shannon Morrow Text by Josh Sebold Blaster Ken Kirschenman of Neil's Controlled Blasting was all smiles after pulling off what Caltrans engineer Ron Collins (not pictured) called "a perfect blast." Kirschenman (right) summed up his handiwork with two words: "Fun, huh?" Prep work for the explosion consisted of drilling 40 - 50 holes to the depth of the intended road- way. The blast was aimed upwards so that the rock would be shattered but the structural in, tegrity of the surface below wouldn't be affected. Caltrans also dug a "relief hole" for the rubble to collect in, limiting the amount of cleanup time needed before the crew could reopen the road. 0 The next phase of the project revolves around the creation of a temporary support structure. The structure pieces will provide a frame while the concrete bridge Is being formed; later, when the bridge can support itself, the pieces will be removed. This section of the project is already beginning to take shape, slowly rising out of the river beam by beam. The explosive exercise went off without a hitch. The roadway reopened and normal work recommenced mere moments after personnel announced, "Fire in the holel"