or Immediate Release

February 16, 2007

Contact: Frank W. Lee, DPW

Tel: (415) 437-7018

***PRESS RELEASE***

DPW CONSTRUCTION MANAGEMENT

SHOWS GOING GREEN IS BENEFICIAL

(San Francisco) Crushing concrete walls and masonry blocks may be uninteresting, but the Department of Public Works (DPW) Construction Management team for the recently completed Juvenile Justice Center showed that environment-friendly construction practices benefit the public and pocketbooks. 8,000 tons of concrete debris was diverted from landfills, and over $100,000 in dumping fees was saved.

Recognizing that having thousands of trucks haul debris of the old Juvenile Hall to a landfill near Half Moon Bay was not desirable, the project team decided during the demolition phase to bring in concrete crushing equipment and form a reclamation yard. Steel was separated from the mostly concrete building material and was hauled to an off-site steel mill for recycling. The concrete, however, was pulverized on site and piled for reuse.

The recycled concrete became aggregate base for the parking lots and roadways that surrounds the new Juvenile Justice Center. The crushed concrete was also used to backfill utility trenches. Remaining recycled concrete will be used on future projects.