Lake McIntosh reservoir on Line Creek dedicatedBy ALEX MCRAE
More than 40 years after it was originally proposed, Lake McIntosh reservoir — which straddles the Coweta-Fayette County line — is now official.
The 650-acre reservoir, which is owned and operated by the Fayette County Water System, was dedicated Dec. 7. It will provide drinking water for Fayette County. The majority of the lake — an estimated 550 acres — is located in Coweta County, but there are no plans at this time for Coweta to receive drinking water from the new source.
The damming of the creek will result in some changes to the flood plain in the area, and will require new flood plain map amendments. Documents related to those amendments were approved by the Coweta County Board of Commissioners in October 2009.
Several years ago, plans for a proposed extension of TDK Boulevard, which would tie into McIntosh Trail in Coweta, had the extension going across the dam. Plans were later changed to have a bridge built below the dam. Peachtree City’s city council voted to kill the road project.
The extension would have been called Vernon Hunter Parkway in Coweta.
The area along Line Creek was first considered for a drinking water reservoir in the 1960s.
The reservoir site was purchased by Fayette County in the 1970s, but almost 30 years passed before project approval was granted by the Army Corps of Engineers in 2007. Two years later, the proposed dam was approved. Construction on the dam began in 2010.
Fayette officials said, because of current drought conditions, flow from Line Creek is only 2 million gallons per day (GPD). Flow at Line Creek must be at least 3 million GPD before excess flow can be captured to begin filling the lake. How long it takes to fill the reservoir is dependent on Line Creek flows.
Drinking water from Lake McIntosh will be treated at the Crosstown Water treatment Plan on TDK Boulevard in Peachtree City.