According to the Contra Costa County Office of the Sheriff, Diablo Road between Green Valley Road and Mt. Diablo Scenic Boulevard remains closed after a fallen tree took down power lines and blocked the road early this morning. That section of Diablo Road is expected to be shut for much of today as repairs are made and the tree removed.
Local traffic will be diverted. Motorists heading to Blackhawk are advised to use Camino Tassajara.