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BACKGROUND As a part of the 2010 traffic fee update, a second left-turn lane from westbound Bernal Avenue onto southbound Sunol Boulevard was identified as a necessary project. Then in 2017, the City Council-approved Junipero Street and Independence Drive traffic calming study recommended pursuing the design of the intersection improvements as part of the overall traffic calming plan. This project will increase the capacity of the signalized intersection to serve the left-turn movement without affecting the overall signal timing of the intersection. The additional lane will allow the queue of motorists turning left to clear the intersection without altering the duration of green light time for movement through the intersection. In addition to the second left-turn lane, the project will include pedestrian and bicycle improvements at the intersection in conformance with the City's Complete Streets Policy. On December 18, 2018, City Council approved a professional services agreement in the not-to-exceed amount of $108,000 with HMH Engineers (HMH) to develop design alternatives for the construction of a second westbound left-turn lane from Bernal Avenue onto southbound Sunol Boulevard. It was understood that widening Bernal Avenue, which required construction of another left-turn lane, would potentially also require the construction of retaining walls and acquisition of the adjacent land. The scope of work for the agreement was for HMH to develop design alternatives to the 35% complete level that considered both physical impacts to adjacent properties, as well as right-of-way acquisition requirements. On November 5, 2019, the City Council approved the first amendment to the agreement for $22,000 for the appraisal of the Pleasanton Unified School District's (PUSD) property and to prepare landscape design concepts. In addition to the right-of-way, the value of temporary construction easements (beyond the right-of-way needed to construct the project) was to be determined. HMH, in consultation with the City's landscape architect, developed concept boards depicting options for the landscaping restoration/enhancements along the PUSD property frontages and throughout the project area. On December 26, 2019, the City received a letter from the Pleasanton Hills Board of Directors raising concern about additional traffic noise migration from the proposed project and requested a landscape design that would add foliage at the bottom of the hill. The City had HMH commission a noise study conducted by Illingworth & Rodkin, Inc. The study concluded that the impact is less than significant as the existing conditions plus the project's anticipated outcome would result in an increase in noise level between 0 to 0.4 dBA (decibels A) and would not exceed the 4 dBA significance threshold as established in Program 1.3 of the General Plan. Noise level increases under 1 dBA are not measurable nor detectable outside of a laboratory environment. On August 4, 2020, City Council approved a second amendment to the professional services agreement with HMH for the 100% design adding $231,200 for a total not-to- exceed agreement amount of $361 ,200 to complete the design and prepare biddable construction documents. The design was completed in December 2022. Page 2 of 4