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<br />WOOdwardoClV_ -, <br /> <br />direct shear tests would be performed to develop engineering properties, including <br />residual strength, for use in the analyses, <br /> <br />Task 4 - Stability Analyses <br /> <br />Stability analyses will be performed using the computer program UTEXAS3, which is <br />more suitable for evaluation of embankment slides than many slope stability analysis <br />programs. U1EXAS3 allows variation in the geometry of the slide plane to model <br />discontinuities in the soils, such as irregular slide surfaces identified in the drill holes and <br />along soil interfaces in zones of the embankment (such as through the puddle core) or <br />foundation materials. In addition, we will model the slope movement using a Factor of <br />Safety equal 1.0 (incipient failure). Based on the results of our analyses we will develop <br />the most likely failure scenario( s) and then prepare repair measures to restore the <br />embankment to operating condition. The repair measures would be developed based <br />on the Colorado State Engineer's requirements, <br /> <br />Task 5 - Report <br /> <br />We will prepare a report, signed by a Professional Engineer registered in the State of <br />Colorado, summarizing the results of our field investigation, laboratory testing, stability <br />analyses, and our reconimended repair plan. We will also provide a construction cost <br />estimate for the repairs including final design and construction engineering costs. <br /> <br />4.2 SCOPE OPTIONS <br /> <br />We have summarized below several scope options. These include options requested by <br />Mr. Templeton (i.e., options for spillway enlargement, outlet works camera inspection, <br />and raising the embankment 3-4 feet), and options that we believe are important in <br />developing a repair to the dam, but were not specifically included in the scope <br />description provided by the Water Company. We would be happy to meet with the <br />Beaver Park Water Company Board to discuss the basic work scope and the scope <br />options presented below, <br /> <br />Woodward- Clyde Consultants <br /> <br />23360/PR0.4 12-08-93(8:S3am)/RPT <br /> <br />4-3 <br />