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Woodward-C <br />, <br />features. Field investigations included drilling five test holes from the dam crest to <br />depths of 80 feet through glacial moraine. Analyses were performed to evaluate the <br />existing stability and seepage conditions. Various rehabilitation alternatives were <br />developed and evaluated, and corresponding feasibility level cost estimates were <br />developed: <br />Tablachaca Dam, Peru - A 12 million cubic yard landslide was located immediately <br />upstream of the lazgest dam and hydroelectric power plant in Peru, and threatened to <br />biock the intake structures. The slide had moved aver 6 feet in a single rainy season on <br />a failure surface 320 feet deep. WCC performed geologic mapping, drilling and coring, <br />installation and monitoring of inclinometers, and a review of seismic conditions. WCC <br />designed and supervised the construction of a series of stabilization measures including <br />rock botting, drainage tunnels, construction of a 650,OOQ cubic yard buttress, and <br />stabilizatioa of the buttress found� ' acted gravel columns. <br />Forest City Bridge, South Da t g bndge was constructed to cross <br />the lake impounded by Oahe n ' River, and provides the only <br />river crossing for 50 miles in either direction Rising lake levels activated a 75 million <br />cubic yard landslide in weak Pierre shale materials. Tt�e slide covers 8,000 feet of <br />shoreline and reaches 3,500 feet uphill from the abutment of the bridge. WCC has <br />provided investigation, design, and construction observation services for this ongoing <br />project. <br />3.2 PR03ECf KEY PERSONNEL EXPERIENCE .AND QUALIFICATIONS <br />This section contains brief discussions of the experience and qualifications of the key <br />personnel named in our organization chart. Resumes for all of these individuals are <br />included in Appendix A. <br />Mr. Terry Arnold, P.E., WCC's project manager for this project, has extensive <br />experience in geotechnieal investigations, analyses and in project management for <br />embankment dams, inctuding providing design criteria, preparing plans and <br />speci�ica.tions, preparing construction cost estimates, and construction inspection on <br />various projects. Project experience includes initial site investigation; foundation, <br />Woodward-CI�Mo ConsulW�s <br />23360lPR0.3 12-08-93(8:53am)IRPT 3'8 <br />