Pine Flat Lake

Comments

• 
  Pyro (guest)

  Before the attacks of September 11, 2001, the Army Corp of Engineers provided guided tours of the dam, both exterior and interior. Of particular interest is a long room at the end of which is an opening through the wall of the dam. Inside the opening is a suspended wire connected to the top of the dam and extending all the way to the bottom. Behind the wire is a guage that allows engineers to determine how much the blocks that comprise the dam have shifted over time. This is important because the dam was constructed as a concrete gravity dam, meaning the dam is made of large individual blocks of concrete that are held together not with mortar or cement, but by their enormous weight.

  15 years ago | reply | hide comment