The Twin Peaks Promenade Project will transform approximately one-third of a mile of the eastern alignment of Twin Peaks Boulevard—permanently closed to vehicular traffic—into a linear park featuring a multi-use recreational trail. Located within an Environmentally Sensitive Area (ESA) that supports the federally protected Mission Blue Butterfly, the project requires careful protection and restoration of natural habitat during construction. Work includes removal of a portion of existing asphalt pavement and installation of stabilized soil trail paving. Most existing concrete barriers and steel guardrails will be removed. Improvements will include new seating areas with benches, concrete seatwalls, wood plank benches, and ornamental boulders. Trail edges will be defined with gabion walls, Sutter walls, and redwood headers, with split-rail fencing installed to protect sensitive habitat areas. The parking lot will be reconfigured and restriped to include an ADA-accessible parking stall and bicycle parking at three locations. Service and emergency vehicle access will be provided at both the north and south ends of the promenade with removable bollards. The project also includes erosion control measures, habitat restoration through native plantings, and installation of wayfinding, interpretive, and trail map signage.
