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Los Angeles. HAI scope of services <br />consisted of: 1) Review existing <br />geotechnical and environmental <br />data, 2) Drill and sample within <br />the top 80 feet of subsurface <br />materials at two locations, 3) <br />Screen collected soil samples <br />for volatile organic compounds <br />(VOC)s, 4) Perform geotechnical, <br />environmental, and analytical <br />laboratory testing, 5) Provide <br />seismic and foundation design <br />parameters, and 6) Prepare <br />a written report presenting <br />our findings, conclusions and <br />recommendations pertaining <br />to the geotechnical and <br />environmental conditions of the <br />site subsurface soils. Provided <br />seismic and foundation design <br />recommendations for the <br />proposed seismic retrofit of the <br />bridge. Our recommendations <br />were based on previous work <br />performed by CH2M and <br />supplemental geotechnical <br />exploration performed by HAI In <br />2012. Our scope of work Included <br />evaluation of lateral and axial <br />capacities and recommendations <br />for excavation and construction of <br />CIDH plies as well as design and <br />construction recommendations <br />for pile caps, abutments walls, <br />dewatering and environmental <br />monitoring, roadway <br />Improvements, new cantilever <br />retaining walls for abutment <br />approaches, and trenching <br />and temporary shoring. HAI is <br />currently providing geotechnical <br />and environmental engineering <br />support services during <br />construction activities. Client: City <br />of Los Angeles, MGE Engineering, <br />MGE Engineering, David Evans <br />Associates/Kleinfelder/ Simon <br />Wong <br />Riverside Drive near Zoo <br />Drive over Los Angeles River, <br />Glendale, CA. Principal Engineer/ <br />Project Peer Reviewer responsible <br />for project quality assurance. <br />HAI, as the project geotechnical <br />engineer of record, is currently <br />providing design change and <br />construction quality assurance <br />services during construction <br />of the bridge widening. HAI is <br />providing design review services <br />for the foundation system; field <br />observation services during <br />Installation of shoring and pile <br />driving activities; field observation <br />and testing of site soils during <br />grading activities; and field <br />measurements of vibration <br />and noise during construction <br />activities. Client: Tetra Tech / City <br />of Los Angeles, 2016-2017, <br />State Street Bridge Widening, <br />Los Angeles, CA. Project <br />Manager responsible for <br />performing Phase II Environmental <br />Site Assessment study on the <br />subsurface soil conditions at <br />State Street Bridge over SCRRA <br />and Busway for environmental <br />evaluation, and characterizing <br />subsurface soil conditions. HAI is <br />currently providing environmental <br />site Investigation, and laboratory <br />testing services for the project. <br />The services Include performing <br />field investigation consisting of <br />soil and groundwater sampling, <br />laboratory testing of the obtained <br />soil and groundwater samples, and <br />providing recommendations for <br />handling observed contamination <br />at the project site. Client: HNTB / <br />City of Los Angeles <br />Soto Street Bridge Removal <br />over Mission Road and <br />Huntington Drive, Los <br />Angeles, CA. Project Manager <br />responsible for providing <br />geotechnical and environmental <br />engineering support and <br />recommendations for excavations <br />and for mitigation of the existing <br />bridge foundations Impact on <br />road pavements. HAI prepared <br />a comprehensive work plan for <br />additional Phase II environmental <br />investigation at the existing <br />bridge abutments to complement <br />environmental data collected <br />by the contractor and perform <br />detailed value engineering to <br />minimize cost of contaminated soil <br />disposal. HAI is also performing <br />noise and vibration monitoring <br />to minimize the Impact of the <br />construction on the nearby <br />residents and commercial <br />facilities, particularly the potential <br />damage and claims related to <br />demolition activities. Client: City of <br />Los Angeles, Tetra Tech <br />North Spring Viaduct Seismic <br />Retrofit and Widening over <br />Los Angeles River, Los <br />Angeles, CA. Project Manager <br />responsible for providing additional <br />data on the site subsurface <br />soil conditions at North Spring <br />Viaduct for constructability <br />and environmental evaluation, <br />and characterizing subsurface <br />soil conditions. HAI is currently <br />providing geotechnical engineering <br />testing, analysis and vibration <br />monitoring services during <br />construction of the seismic <br />retrofit and widening of North <br />Spring Viaduct. The services <br />Include performing engineering <br />evaluations and analyses for as - <br />needed design changes and for <br />facilitating construction process; <br />observing and documenting <br />shoring and tieback installation, <br />pile driving and CIDH construction <br />for bridge foundations; performing <br />pile drivabllity analysis and Pile <br />Dynamic Analysis (PDA) tests; and <br />providing vibration monitoring, <br />documentation, and mitigation <br />recommendations. Client: City of <br />Los Angeles, Klmley-Horn <br />25F-67 <br />