Summary and Challenge
City Ventures Old Town Village Mixed-Use Project is a 175-unit mixed-use complex comprised of 113 traditional townhomes, 28 mixed-use shopkeeper units, 34 live-work townhomes, 489 parking spaces and a 1,644 sq. Ft. community fitness center for the complex located on a 12.31-acre unaddressed parcel west of Kellogg Way and South Kellogg Avenue. Challenges included designing the systems for the required storage volume of stormwater to meet the standards required in a way not to lose any portion of the construction and ensuring that each of the individual systems arrived on site complete and clearly marked to ensure that installation of each differently designed system went into the correct area and was not short components a stormwater plan was required.
Solution
Layfield recommended the use of a Brentwood Stormwater Plan. The Project utilizing the Brentwood includes a variety of design features to address Stormwater treatment, detention, and retention. These include using the open space areas for detention and treatment, using permeable surfaces was possible to increase infiltration, creating bioswales down the center of the central pathways (boardwalks are used to provide access to the units), and directing roof drains to vegetated areas. This Stormwater plan complies with the Central Coast Regional Water Quality Control Board (RWQCB) requirements for the on-site retention of Stormwater runoff.
Result
The Brentwood Stormwater Plan phase one was installed without a hitch. The Project Foreman mentioned that the systems were organized and surprisingly easy to install. The time to install was much shorter than planned.
