The pipeline is running along train tracks off Poinsetta and Suisun Avenue in Bay Point.
Anyone in the Bay Point area by North Broadway to the West, Summer Way to the East, Suisin Avenue to the North and Willow Pass Road to the South should evacuate - and plan to be gone overnight.
Calgary Temple Church and Bay Point Bart are being used as evacuation centers.
Confire has shut down the rail in both directions.
The fire was reportedly caused by an electrical power line falling, which started a fire near a valve junction on the Northern California Gas Line near Pittsburg, according to officials.
Chevron representatives are on scene.
Con Fire on scene of a grass fire that is threatening an underground gas pipeline in Baypoint, vicinity Poinsettia and Suisun Avenues. Evacuations within 1/2 mile of site we're ordered in the last few minutes. Pittsburg PD and CCC Sheriff carrying out evacs.— Confire PIO (@ContraCostaFire) October 18, 2018
Anyone in the Baypoint area delineated by N. Broadway to the West, Summer Way to the East, Suisun Ave to the north and Willow Pass Road to the South should evacuate this area and plan to remain away overnight. #poinsettiaic— Confire PIO (@ContraCostaFire) October 18, 2018