Protesters gathering in the vicinity of the Church of Jesus Christ of Latter-day Saints on Lincoln Avenue caused CHP officers to restrict vehicular traffic to and from the area by closing access to state Highway 13 for almost four hours, CHP officer Ralph Caggiano said.
CHP closed the ramps at 10 a.m. when about 500 protesters, opponents to Proposition 8, peacefully gathered near Oakland's Mormon temple, Caggiano said.
The ramps were reopened at about 1:45 p.m. when the protesters began to dissipate, Caggiano said.
The event was one of several held throughout the state this weekend in protest of Proposition 8, which would ban same-sex marriages in California. On Friday, thousands of people marched from San Francisco's United Nations Plaza to Dolores Park.