Twin Cities Police Authority Headquarters

Larkspur, California

Civil Engineering, Topographic Mapping Services and Environmental Assessment & Cleanup

EBA provided civil and surveying work as a subconsultant to Glass Architects on a new police administration facility in Larkspur, California. The project replaced an existing outdated facility on a 2-acre site adjacent to a creek and situated over an old landfill.

The project site is adjacent to a park and middle school in which both share access to the project site. Design services were provided by EBA from 2003 through 2010 with construction starting in 2010.

EBA services included surveying, environmental evaluations, permitting, civil design, Leadership in Energy and Environment Design (LEED) compliance for civil items, and construction administration. Site improvements included extensive demolition of existing facilities, new on-site and off-site access roads, pervious pavement design for the parking lots, new utilities, grading and drainage systems including stormwater treatment and retention, creek bank restoration, erosion control provisions, and site soil and groundwater remediation. 
 
EBA also provided several environmental services, including performing a Phase I Environmental Site Assessment, evaluation and soil removal of a former underground storage tank area, groundwater treatment, and design of a methane mitigation system for the building subfloor.