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Well032 Rehabilitation Engineering Services
<br />obtained including any planned near term
<br />improvements. Tetra Tech will prepare a complete
<br />list of all As-Built/Record Drawings found, what
<br />agency they were found in and this information shall
<br />be referenced in the Basis of Design and final Plans
<br />and Specifications,
<br />A topographic survey for the project shall be
<br />performed, A design level topographic survey will
<br />be provided for the project area. Included will be
<br />sufficient survey points to provide 1-foot contours
<br />with spot elevations throughout, inverts of sewer
<br />and storm drainage structure/features, street
<br />striping, raised islands and above ground visible
<br />utilities. We have assumed an area immediately
<br />around the well site and the parking lot at Morrison
<br />Park, the limits of the pipeline alignment from
<br />back of walk to back of walk and the front area
<br />of the John Garthe Reservoir site. In addition,
<br />field topographical survey work will be performed
<br />to identify SC and EC of all curb returns, light
<br />poles, improvements, surface breaklines; striping,
<br />sidewalk, ADA ramps, etc —above ground and
<br />underground facilities (any that are marked by
<br />others), all utility manholes and pull boxes, and the
<br />dipping of the manholes.
<br />Tetra Tech will develop a potholing location plan
<br />based on our utility research and alignment
<br />analysis. Tetra Tech will schedule the potholing
<br />activities with the City's Project Manager a
<br />minimum of two (2) weeks in advance. Traffic
<br />control plans related to potholing activities will
<br />be submitted to City staff for review. We have
<br />assumed the development of three typical plans. if
<br />site specific traffic control plans are required, Tetra
<br />Tech will prepare a fee once the locations have
<br />been determined. All potholing information will be
<br />logged and included in the Basis of Design and
<br />on the Final Design Plans. Per the RFP, we have
<br />assumed a maximum of twenty (20) potholes will
<br />be required. We understand that we are required
<br />to obtain permits and pay all applicable fees for
<br />the potholing activities. Backfiii and paving will be
<br />as required by the Permitting section of the Public
<br />Works Agency. The pavement section shall match
<br />the existing pavement thickness at a minimum. We
<br />have assumed hot mix asphalt replacement will be
<br />required.
<br />Tetra Tech will research available records at the
<br />City to verify the existing right-of-way for the project
<br />area and confirm ownership of the right-of-way.
<br />We will review the available information and will
<br />inform the City of any issues of concern regarding
<br />potential problems having to do with prior rights,
<br />license agreements, encumbrances, etc.
<br />Tetra Tech will be responsible for conducting
<br />necessary geotechnical testing to determine
<br />the existing pavement and base thickness, sub.
<br />grade soil type and evaluation of the structural
<br />section's condition. Field and laboratory testing
<br />will be performed as necessary to recommend
<br />pipe bedding requirements, pump house
<br />foundation requirements, excavation and shoring
<br />requirements, retaining walls as required and a
<br />new pavement structural section throughout the
<br />Project limits. Foundation design analysis, will
<br />be performed to provide earthwork/structural
<br />recommendations, pipe bedding requirements,
<br />and pavement reconstruction details for the
<br />construction of the Project.
<br />Geotechnical testing on sampled earth materials
<br />for sol classification will be performed to evaluate
<br />engineering properties. The test includes moisture
<br />content and dry density, gradation, consolidation,
<br />direct shear, R-value, and corrosivity(chlorite
<br />and sulfate content, minimum resistivity and pH).
<br />Geotechnical hazards at the project site will be
<br />evaluated and geotechnical recommendations
<br />for design and construction of the project will be
<br />prepared. The report will include: site conditions,
<br />geologic hazards (fault rupture, ground shaking,
<br />liquefaction and tsunami), seismicity, foundations,
<br />lateral earth pressures, corrosivity, concrete type,
<br />pipe subgrade preparation, pipe bedding, materials
<br />for trench backfili and backfill compaction,
<br />pavement recommendation, and earthwork
<br />recommendations. This information will be included
<br />in the Basis of Design, on the Final Design Plans
<br />and in the Final Specifications.
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