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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 attwo 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 State Street Bridge Widening,
<br />were based on previous work g g,
<br />performed by CH2M and Los Angeles, CA, Project
<br />supplemental geotechnical Manager responsible for
<br />exploration performed by HAi in performing Phase II Environmental
<br />2012.Our scope of work included Site Assessment study on the
<br />evaluation of lateral and axial subsurface soil conditions at
<br />capacities and recommendations State Street Bridge over SORRA
<br />for excavation and construction of and Busway for environmental
<br />CIDH piles as well as design and evaluation, and characterizing
<br />construction recommendations subsurface soil conditions. HAI Is
<br />for pile caps, abutments wells, currently providing environmental
<br />dewateringand environmental site Investigation, and laboratory
<br />monitoring, roadway testing services for the project,
<br />Improvements, new cantilever The services include performing
<br />retaining walls for abutment field Investigation consisting of
<br />approaches, and trenching soil and groundwater sampling,
<br />and temporary shoring. HAlis laboratory testing of the obtained
<br />currently providing geotechnical soil and groundwater samples, and
<br />and environmental engineering providing recommendations for
<br />support services during handling observed contamination
<br />construction activities. Client: City at the project site. Client; HNTB /
<br />of Los Angeles, MOE Engineering, City of Los Angeles
<br />MGE Engineering, David Evans Soto Street Bridge Removal
<br />Associates/Kleinfelder/ Simon over Mission Road and
<br />Wong 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 />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 geotechnlcal
<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 />and for mitigation of the existing
<br />bridge foundations impact on
<br />road pavements, HAI prepared
<br />a comprehensive work plan for
<br />additional Phased 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 drlvingand CIDH construction
<br />for bridge foundations; performing
<br />pile drivability 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, KlmleyHorn
<br />
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