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William Wallace has more than 44 years of experience as a Structural Engineer. He has been involved in <br />the design of many highly complex structures forflood control and soil and water conservation construction <br />programs for the Corps of Engineers (COE) and the Natural Resources Conservation Service (NRCS). <br />Projects have included reinforced concrete hydraulic structures such as trapezoidal channel paving, <br />rectangular channels, impact basins, drop structures, retaining walls, and reinforced concrete for principal <br />and auxiliary spillways of lakes and dams. Wallace provided the structural design or provided peer reviews <br />of projects where the objectives of the project was to design modifications to dams and their appurtenant <br />structures to mitigate risks related to dam safety concerns; and to meet current regulations and standards <br />as proQ4d by Conservation Districts, NRCS, COE, and various Departments of Water Resources. <br />RELEVANT PROJECT EXPERIENCE <br />Oxnard Village Flood Control Facilities — Oxnard, CA <br />Cottonwood Creek Trail and Bank Stabilization — Allen, TX <br />Rush Creek Channel Erosion Control —Arlington, TX <br />Channel Improvement Project — Fort Worth, TX <br />Brazos River Study— TX <br />Lake Ray Roberts Outletworks Conduit and Power Penstock — Lake Ray Roberts, TX <br />DAVID MACKEY, F <br />Land Survey - Huitt-Zollars <br />David Mackey has 21 years of experience in the preparation of Tract Maps, Parcel Maps, Records <br />of Survey, Right -of -Way maps, Legal Descriptions, ALTA Surveys and Lot Line Adjustments. He has <br />been involved in numerous rehabilitation projects for parks, streets and intersections using conventional <br />survey, GPS survey and scanning. David coordinates field crews, processing field work and delivers final <br />CAD product and has extensive survey experience in Southern California. <br />RELEVANT PROJECT EXPERIENCE <br />Topographic Surveys, City of Costa Mesa — Costa Mesa, CA <br />University of California, Irvine — Irvine, CA <br />Topographic Survey, Bristol Street— Santa Ana, CA <br />Topographic Surveys, City of Santa Fe Springs — Santa Fe Springs, CA <br />Wishing Tree Park — Torrance, CA <br />Pacific Electric Bike Trail — Upland, CA <br />City of Santa Ana Civil Engineering Services: RFP 23-030 <br />