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DISCUSSION "Quick Build" Bicycle Improvements The West Las Positas Boulevard Bicycle and Pedestrian Corridor Improvement Plan approved by City Council on November 15, 2022, proposes grade-separated bike lanes in the east and westbound directions on West Las Positas Boulevard. Grade separation is accomplished by removing and relocating the curb lines on West Las Positas Boulevard and narrowing the street by changing the existing number three, or shoulder, lane in each direction into a bike lane at a similar elevation to the existing sidewalks. When fully implemented, the cross-section of West Las Positas Boulevard between Hopyard Road and Santa Rita Road will include two vehicular lanes in each direction, a bike lane in each direction, along with sidewalks on each side of the street for pedestrians. The "quick build" bicycle improvements between Hopyard Road and Hacienda Drive will use roadway paint and bollards to create the same cross-section without reconstructing the roadway or the curb lines. The "quick build" will be a demonstration of the final bike lane design before the hardscape construction changes are made to the roadway. In the "quick build," the bike lane will be nine feet wide with a three-foot painted buffer area between the bike lane and vehicular lanes. Within the painted buffer will be roadway bollards spaced at 35-foot intervals to further delineate the space between the bike lane and vehicle lanes. The work will include approximately 12,000 feet of pavement striping improvements and the installation of approximately 270 bollards. Staff recommends the approval of Change Order No. 5 with O'Grady Paving, Inc. to install the "quick build" improvements. Based on quantity estimates and O'Grady Paving, Inc.'s unit costs from the existing contract between the City and O'Grady Paving (Attachment 1), Change Order No. 5 includes approximately $140,000 for this work. The final cost and payment for the change order work will be determined by final field- measured quantities of pavement striping and bollards installed. Localized Pavement Repairs West Las Positas Boulevard's pavement, base, and subgrade is failing which has degraded ride quality and caused some safety concerns. The settlement has occurred over the years since its original construction, with the drought causing the consolidation and settlement of the mostly clay subgrade to accelerate in recent years. Ongoing localized street repair has been necessary to maintain a drivable roadway surface. The construction project resulting from the Mark Thomas design work will be the ultimate solution to the roadway settlement issues. However, based on cost and the limited availability of funding, the Mark Thomas-designed roadway repair work may have to be phased, focusing on the worst areas first, with other areas of the roadway still requiring localized street repairs until funds for the reconstruction are identified. The "quick build" length of West Las Positas Boulevard between Hopyard Road and Hacienda Drive has settled in several areas and continues to do so. It is not currently considered to be the worst area in comparison to the West Las Positas Boulevard's pavement east of Hacienda Drive to Stoneridge Drive. Therefore, if phasing is required, the "quick build" roadway area between Hopyard Road and Hacienda Drive may be a in later phase, with periodic localized repairs still required until the section of roadway is reconstructed. Page 3 of 5