The Los Angeles County Board of Supervisors directed its staff today to create a plan to restore the fire-damaged Olive View Medical Center.

More than 40 buildings on the hospital's campus were damaged by the Sayre fire in Sylmar, and the child care center was totally destroyed, said Supervisor Michael Antonovich.

In addition, the hospital was without electricity for several hours early Saturday, and county staffers were directed today to investigate ways to improve the reliability of Olive View's back-up generators.

A report on how to rehabilitate the hospital and improve its generators will be brought back to the board in two weeks.

The Sayre fire, which was 70 percent contained as of midday, has charred more than 11,200 acres. Since erupting about 10:30 p.m. Friday, more than 600 structures have been destroyed, including about 480 modular homes at the Oakridge mobile home park, along with nine single-family homes, 104 outbuildings and 10 commercial buildings.

Driven by fierce Santa Ana winds that reached up to 80 mph, the blaze at one point threatened 7,500 structures, and 10,000 residents were evacuated. The cause of the fire remains under investigation.