Reported crack in dam, flash flood warning on Sullivan Creek

Chris Caskey, The Union Democrat /

The National Weather Service this morning released a flash flood warning for areas immediately adjacent to Sullivan Creek downstream from Twain Harte Lake through 10:45 p.m. tonight.

The leak in the dam was from a crack was caused by fissures in the rocks, according to Twain Harte Lake Board President, Betty Jesperson.

The dam was opened to empty the lake water at noon to relieve the pressure against the cracked rocks, Jesperson said.

The lake is closed to visitors and members until further notified.

At this point, there is no danger of the dam breaking, Jesperson said.

Tuolumne Utilities District, Cal Fire, Twain Harte Fire and Office of Emergency Services are on scene. Jesperson said about noon a geologist from Sacramento was scheduled to arrive on scene.

The report was issued at 10:45 a.m., and according to the weather service the Twain Harte dam operators reported cracks in the dam with a potential for dam failure. Though the town of Twain Harte is not affected, portions of Bellview are under the warning, according to the National Weather Service. Both the Tuolumne County Sheriff's Office and Twain Harte Fire Department confirmed the situation, though further information on the severity of the dam's condition was not immediately available.

A flash flood warning means flash flooding is occuring or imminent. People in the areas under the warning are told to seek higher ground.

11922186
The Union Democrat
This image is copyrighted.

Reach all of Sonora, Calaveras County, Tuolumne, Angels Camp, Twain Harte, & Jamestown with your items to sell.

Ads appear Online and in Print

View Classifieds Place an Ad

Connect with The Union Democrat

Union Democrat Newsstand

Friday April 29, 2016

Read digital interactive editions of our publications

Read Today's Edition Take A Tour

More Publications by The Union Democrat

View All Publications
Jamestown teen realizes queen dream

04/26/2016

Karissa Rogers, named 2016 Mother Lode Roundup Queen on Sunday, swept the ... more

New $65M courthouse to open by end of 2019

04/26/2016

State officials are working with architectural consultants on final designs for a ... more

Lake is full, marina is open

04/26/2016

The temperature was in the high 20s Tuesday morning when Jacob Hartley, ... more

Increased pulse flows for fish begin on Stanislaus River

04/26/2016

Agencies that control flows on the Stanislaus River below Tulloch and New ... more

McPherson sentenced to 36 years in prison

04/22/2016

A man was sentenced to 36 years in state prison for sexually ... more