The main road near the site of Thursdays 40-acre fire in central San Diego reopened Saturday afternoon.

Montezuma Road between Collwood Boulevard and Fairmount Avenue had opened both east and west lanes by 5 p.m. Saturday, said the San Diego Police Department.

The blaze, which caused the evacuation of hundreds of people in the College Area and Talmadge, was 90% contained as of Saturday afternoon, said the San Diego Fire-Rescue Department.

Fire crews stayed busy Saturday with another blaze downtown when a mattress caught fire at the Potiker Senior Residence on 14th Street around 2 p.m. The fire was put out quickly and one person was taken to a local hospital for evaluation. The cause of the mattress fire was still under investigation, the fire department said.