ALTA PLANNING + DESIGN, INC. (2)

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Street improvement projects trigger the need to upgrade facilities, such as curb ramps and sidewalks, to meet current ADA requirements. Alta identifies such needs early in the design development process to develop truly inclusive Complete Streets and minimize unnecessary project costs. ROADWAYIPAVEMENT ENGINEERING Rehabilitation projects often require improvements that impact adjacent facilities such as driveways, walls, and other appurtenances. Our design carefully considers these "conform" requirements, with the goal of minimizing or eliminating the need for temporary construction easements or additional rights -of -way. Our team will be supported by GMU, a geotechnical and pavement engineering firm, to provide alternative pavement recommendations to meet project goals and objectives while staying within City budget. Alta has a clear understanding of alternative pavement methodologies based on cost effective approaches for a 20-year design life, constructability, and factors that are unique to commercial and residential streets. Based on our knowledge and experience, key components for rehabilitation methods that need to be considered include depth of removal sealing and interlayer, rehabilitation approach, pavement recycling, and full reconstruction. The Alta Team, supported by GMU, provided pavement evaluations, repair recommendations, and final rehabilitation plans for El Monte's CIP 016 project. SAFER MULTIMODAL DESIGN Alta can incorporate specific design elements that increase safety, including the narrowed width of street crossings, improved lighting, and effective site lines. We strive to create sustainable capital improvement projects (CIPs) that do not over -burden maintenance departments and minimize operation costs. For example, Alta can prepare and specify signage and striping improvements so that they are timed with routine repaving and maintenance efforts; efficient irrigation systems with weather -based controllers that are automatic and self-adjusting; high efficiency lighting (including solar lighting) to minimize operation costs and fixture replacement cycles; and site amenities such as trash receptacles and bollards that are durable and contribute to a community's overall character. CONSTRUCTION DOCUMENTATION: PLANS, SPECIFICATIONS, AND ESTIMATES (PSBE) Once a design has been vetted and agreed on, Alta will move into the final design phase, which includes the development of construction documentation and specifications that meet local, state, and federal regulations. Alta works with the City and agencies to format our drawing and specifications to comply with their standards. The final design package is then submitted for a final review to stakeholders as directed by City staff. Final comments are incorporated into the package and a final bid document set is issued to the City for soliciting contractor bids. Our design team has prepared cost estimates ranging from the very conceptual ballpark number based on the general scope of work to detailed construction cost estimates used for construction bidding and capital improvement budgets. We have developed an internal framework for developing the various levels of cost estimating for our design team to follow so that each project, depending on the level of detail needed, has a consistent approach to cost estimating. Our preliminary engineer's estimates will include itemized quantities for elements within the project corridor, including but not limited to curb extensions, traffic signal improvements (including bike signal infrastructure), ADA pedestrian and bicycle improvements, signing/striping improvements, wayfinding, utility impacts, pavement reconstruction, landscape materials, bus amenities, and all removals required to implement the project. The cost estimate will include quantities and unit costs with back-up information as necessary. We not only use concept plans for our engineer's estimate, but often conduct site investigations to verify potential conflicts that may increase cost. Potential conflicts include R/W impacts, utility relocations, and/or the need for excessive grading or retaining walls. Alta maintains a compendium of recent bid results in Southern California that will be used as a basis for 5 Proposal for RFP No. 23-030 On -Call Engineering Services ALTA PLANNING + DESIGN, INC.