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Item 20 - Agreements for Capital Improvement Projects On -Call Engineering Services
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Item 20 - Agreements for Capital Improvement Projects On -Call Engineering Services
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12/12/2023 4:53:21 PM
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City Clerk
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Agenda Packet
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Clerk of the Council
Item #
20
Date
5/16/2023
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TAS K r Geotechnical Stud ies/Reports/Bori n g — Review existing geotechnical report and prepare a comprehensive geotechnical <br />investigation including adequate borings for proper design of proposed work. Obtain required permits to conduct geotechnical investigations <br />and perform applicable lab test to provide information necessary for a comprehensive design. A draft copy of the geotechnical report will <br />be provided for review and comment. Traffic control in accordance with W.A.T.C.H. Manual. <br />TA S K E: Traffic Study/Report —As necessary. <br />TASK IF Environmental (CEQA)—As necessary, <br />TASK ( Right -of -Way Acquisition and Temporary Construction Easements (TCEs) — Right -of Way acquisition as necessary. <br />HZ will incorporate the preferred precise alignment into the Vi8 CADD Files. Plans will be evaluated and TCE's would be provided, if <br />necessary. <br />fAS K H - Drainage - Huitt-Zollars proposes to implement the recommendations from the draft Citywide FLO-2D model that accounts <br />for backwater effects on the storm drain infrastructure. Sizing of the infrastructure will be based on both hydrology and hydraulic <br />computations to be prepared as part of the drainage report. A preliminary drainage report will be created along with the 30% submittal. <br />A final drainage report will be provided with the final submittal. <br />TAS K I - Water Quality Management Plan (WQMP) <br />Sub-TaskLl — The design will account for the 50% rule in the 2009 MS4 Permit, which requires treatment for 50% of added or replaced <br />impervious areas. It will implement green street principles to the maximum extent practicable. If the underlying soil does not infiltrate <br />we anticipate using the parkway to provide bio-filtration. HZ will prepare a Preliminary WQMP at the 30% stage that identify potential <br />locations for LID BMPs and their interactions with the onsite storm drain network. HZ will develop the Preliminary WQMP into a Final <br />WQMP consistent with the County's Technical Guidance Manual to accompany the final submittal. This will include an engineer's <br />estimate of probable costs inclusive of material, freight, and maintenance for the selected BMPs. <br />Sub -Task L2 SWPPP — Deferred: Construction Bid Task <br />TAS K � Plans, Specifications, and Estimates (PS&E) - HZ will adhere to city criteria, policies, procedure, and standards. PS&E <br />includes three milestone deliverables — 30%, 60%, and Final. Each milestone will commence after HZ has received review comments <br />from the previous milestone submittal. HZ will meet with the City after comments have been reviewed to resolve questions. All plan <br />sheets will be prepared at 20 scale unless otherwise approved and noted. <br />Sub -Task J.1 Street Improvements — HZ will match the precise alignment of the constructed street. Plans will include record <br />information regarding utilities, obstructions, and appurtenant data. <br />Sub -Task J.2 Traffic Design <br />Street Signals <br />Channelization Plan & Details — Plans will be completed to meet California MUTCD standard, signage will be evaluated and updated <br />for proposed lane configuration. <br />Temporary Traffic Control Plans — Deferred: Construction Bid Task <br />Sub -Task J.3 Storm Drain Design - Drainage improvement plans will be prepared at the different milestones. Backbone storm drain <br />profiles will be provided along with the 30% submittal. Profiles for lateral storm drains and storm drain detail sheets will be provided at <br />the 60% and final submittals. <br />Sub -Task J.4 Wall Design — Design of masonry wall height as specified by sound report or City but not to exceed 12 feet <br />Sound Report — Provided by City <br />Sub -Task J.5 Street Lighting & Electrical Design — Typically existing street lights are owned by SCE. If the proposed improvements <br />relocate more than three street lights the proposed lights will be owned by the City of Santa Ana. Street lighting design standards will <br />be coordinated with the City of Santa Ana prior to commencing the design. The design will be per City of Santa Ana lighting standards <br />and consideration will be given to salvaging the existing light fixtures. <br />Sub -Task J.6 Landscaping and Irrigation Design — Conceptual landscape and irrigation plans will be prepared in conformance with <br />City of Santa Ana standards. Our landscape designers will work closely with our engineers to plan, design, and coordinate gateway <br />features, public art, traffic, and pedestrian lighting, signage, and site amenities. Our team will coordinate with the City to responsibly <br />design landscape and irrigation systems. Planting and irrigation will be mindful of water conservation standards. <br />Sub -Task J.7 Dry Utilities — Undergrounding existing powerlines is possible if SCE accepts proposed switch locations. As described <br />in the approach coordination with SCE would occur in two phases. Our current scope is limited to street design. HZ will coordinate <br />City of Santa Ana Civil Engineering Services: RFP 23-030 <br />13 <br />
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