Bioswales Complement New Asphalt-Paved Overflow Parking Lot
This project improves traffic flow by constructing an asphalt-paved overflow parking lot, adding a lane to the existing driveway, and constructing a new driveway shared with a neighboring high school. Parking was designed to maximize available spaces around an existing sewer lift station and high-voltage electrical towers.
Services included a drainage study, utility coordination, 65%, 90%, final, and as-built plans, specifications, and estimates, stormwater pollution prevention plan (SWPPP), and construction assistance. The design process included grading, drainage, ADA compliance, parking stall layout, striping, signage, demolition plans and specifications, and utility coordination.
The team coordinated with city staff to certify that no elevation changes would occur within the floodplain in a small portion of the site. Drainage for the project was routed to two bioswales that were designed in accordance with the Stormwater Quality Design Manual for the Sacramento and South Placer regions.
The team worked with the Public Works Department, Parks Department, and the Roseville Unified School District to gain approval for the design.