CalPERS Headquarters, SACRAMENTO, CA
- A very fast-tracked project with a great emphasis required on thinking out of the box in order to install systems with short durations.
- A landmark facility with constant attention to details and top quality installation.
- A long list of team members and organizations worked together to solve issues quickly and professionally in order to meet milestones benefi cial to the owner.
- Extra effort in assuring the Silver LEED Rating was achieved (Leadership in Energy and Environmental Design).
SCOPE OF WORK
Marelich Mechanical was responsible for the installation of approximately 421,000 pounds of ductwork, 60,000 feet of HVAC piping, and 79,000 feet of plumbing piping. Major equipment procurement and installation included two 250-ton chillers, two 500-ton chillers, four 1,732 MBTUH boilers, 11 air handlers totaling 298,000 CFM, 413 underfl oor fan terminal units, 60 pumps, 15 computer room AC units, 73 fan coil units, two drinking water chiller units, and 43 fans. We were also responsible for miscellaneous architectural sheet metal and roof top mechanical screens.
CalPERS - Calfornia Public Employees' Retirement System - provides retirement and health benefi ts to more than 1.4 million members, including active workers, retirees, their families and beneficiaries and their employees.
The CalPERS R Street Expansion Project is an extension of the existing Lincoln Plaza facility. The two structures will be connected with a tunnel below Q Street. The following vision statement was used by the CalPERS Board and project team to direct their work: "To affi rm the trust of members, employees, and the community through the creation of an innovative, enduring, and integrated workplace and to recognize the community's goal to provide residential development in the R Street Corridor."
- Many value engineering ideas were investigated. The most notable accepted idea was a redesigned perimeter ductwork confi guration which resulted in a credit to the owner, a faster installation, and simplifi ed coordination efforts with the other trades.
- An innovative rigging structure and engineered plan was devised to safely place the chillers in a lower level due to an access hatch omitted in a slab.