Twain Harte Dam fix planning continues

Chris Caskey, The Union Democrat /

Work continues to devise a plan to fix leaks at Twain Harte Dam, which forced the closure and draining of Twain Harte Lake early this month.

Employees of the Twain Harte Lake Association, which owns the dam, are placing survey equipment in the area to track movements in a granite dome, known as The Rock, which secures one side of the dam, according to California's dam safety agency.

The large granite slab cracked earlier this month, causing a leak near the dam's abutment.

Cracking and movement have occurred since the initial incident on Aug. 3.

"They're monitoring the movement (of the granite), looking to see if it's still moving," said Andy Mangney, the Central Region engineer for the state Department of Water Resource's Division of Dam Safety.

The division, which inspects and regulates dams for safety, is evaluating data gathered in the aftermath of the leak's discovery, Mangney said.

At the same time, the lake association will work with an engineer to come up with a viable proposal for patching the cracks in a way that prevents future leaks.

Schedules have not been discussed, however, Mangney said.

For the complete story, see the Aug. 15 edition of The Union Democrat.

11922843
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

Thursday May 5, 2016

Read digital interactive editions of our publications

Read Today's Edition Take A Tour

More Publications by The Union Democrat

View All Publications
A flight to remember

05/02/2016

Dozens of pilots from throughout California and surrounding states descended on Columbia ... more

Summerville grad will compete in London makeup contest

05/02/2016

Kyrsta Morehouse, an aspiring makeup artist, never imagined she would be recruited ... more

Body found near Pinecrest

04/30/2016

Unidentified human remains were found Thursday in the Pinecrest area. At 5:55 ... more

Jimtown Frosty property owners vow to pay tax bill

05/03/2016

The Tuolumne County Board of Supervisors may have to put the brakes ... more