Major Pleasanton Road Closed Due To Flooding

PLEASANTON, CA — Foothill Road between West Las Positas Boulevard and Bernal Avenue in Pleasanton is closed indefinitely, according to an alert issued by police on Monday.

The department asked that residents use an alternate route due to traffic delays. Another alert will be issued once the advisory is lifted.

The Livermore-Pleasanton Fire Department asked residents to stay away from the creeks, arroyos, and adjacent trails because the California Department of Water Resources is conducting a high-flow release of water from the Del Valle Dam in Livermore.

The department began releasing a 500 cubic feet per second flow of water from Lake Del Valle into Arroyo Valle at 12 p.m. on Monday and the flow will continue to increase up to 2,000 cubic feet per water by 4 p.m., according to the fire department.

The water has been released because the National Weather Service expects another storm could wallop the region as soon as Wednesday.

The projected arrival of another atmospheric river-fueled storm has prompted an NWS alert for the possibility of widespread flooding and debris flow in burn scar areas.

Saturday’s storm unloaded 5.44 inches of rain in San Francisco, nearly eclipsing a record of 5.54 inches from Nov. 5, 1994, and causing widespread flooding that prompted the closure of a major freeway in the Peninsula, along with untold property damage.

“An atmospheric river, similar in strength or stronger than the New Year’s Eve storm will spread heavy rain across the region as early as Wednesday through Thursday,” the NWS alert said.

The storm could bring a massive 8 to 10 inches of the wet stuff the Bay Area’s highest elevations in Marin, Napa, Sonoma, and Santa Cruz counties and 2 to 4 inches at lower elevations, according to the NWS.

For more information about the flow release, contact the Water Resources Department's Delta Field Division Area Control Center at (209) 833-2167.

Autumn Johnson and Gideon Rubin contributed additional reporting to this story.