Rend Lake Dam road temporarily closing

September 18, 2010 at 12:44 PM

BENTON — The U.S. Army Corps of Engineers at Rend Lake is announcing the temporary closure of the Rend Lake main dam road from Monday, Sept. 20, through Friday, Sept. 24.

The closure is necessary for exploratory soil testing to be accomplished on the main dam.

Visitors to Rend Lake during the period of Sept. 14-16 will notice a drill rig set up on the downstream berm of the main dam embankment. This drill rig will be used to perform extensive soil testing of the main dam soils.

Following completion of the soil sampling work on the berm, the drill rig will then be moved to the center line of the main dam, which will necessitate the closure of the main dam roadway.

The drill rig augers will advance through clay materials of the main dam, then continue boring, taking soil samples every five feet, until bedrock is encountered.

This exploratory work is being conducted in order for engineers to get an up-to-date picture of soils which make up the composition of the main dam.  It is observational studies such as this that ensure the integrity of the main dam structure for years to come.

For more information on dam safety, a public meeting will be held at the Rend Lake Visitor Center at 6 p.m. Thursday, Sept. 16.