Duck River Water Supply Project – A Sustainable Water

Supply Solution

Cullman Utilities BoardCullman, Alabama

Steve Newton, P.E. - CH2M HILLSeptember 8, 2011

"Sustainability means providing an adequate and reliable water supply of desired quality — now and for future generations — in a manner that integrates economic growth, environmental protection and social development.“

American Water Works Association

25 Feet below Normal Pool

December 2007

Lake CatomaLake Catoma

Duck River – 7 miles

TN River – East – 30 miles

TN River – North – 31 miles

Smith Lake (B) – 15 miles

Tennessee RiverTennessee River

Duck River Water Supply Project•Located east of Lake Catoma and north of Highway 278 in Cullman County•Create a 640 acre reservoir•Full pool storage of 26,000 acre-ft

Duck River Water Supply Project•Duck River Watershed – 23,347 acres (36.5 square miles)•Dam, spillway, lake and buffers – 1,256 acres – 5.4% of the watershed

Major Components of the Duck River Dam Project

•1,925 foot long rock fill dam, 135 feet high designed to withstand the Maximum Credible Earthquake•Spillway in the east abutment designed for the Probable Maximum Flood•Water intake structure and pumping station•Raw water transmission main to the Cullman WTP (approximately 7 miles)

Henderson Branch

Water Intake Structure

Dam

Spillway

Duck River

Duck River

Duck River Water Supply Project

Cullman, Alabama

Design & Construction Phases

•Phase I – Water diversion conveyance, clearing & grubbing and dam foundation preparation•Phase II – Spillway, dam and water intake structure/pump station•Phase III – Pipeline from the water intake structure to the Cullman Water Treatment Plant

Duck River Water Supply Project

Cullman, Alabama

Design & Construction Schedule

•Project is fully permitted•Funding is complete•Land acquisition and funding activities are underway•Phase I final design is being completed •Phase I Construction – Late 2011•Phase II Construction – Winter 2012•Phase III Construction – Spring 2013•Project Completion & initiate reservoir filling – Summer 2015

Sustainable attributes of the Duck River Water Supply Project

•Tactical – Meet the emergency water supply needs of the region

Sustainable attributes of the Duck River Water Supply Project

•Tactical – Meet the emergency water supply needs of the region•Strategic – Meet the future water supply needs of the region• Most Cost-effective Solution

•Construction – utilize onsite material for construction•Energy•Operations & Maintenance

• Water Supply Integration with Lake Catoma – Same ecosystem which allows for optimization of raw water sources

Integrated Water Supply Solution

Sustainable attributes of the Duck River Water Supply Project

•Tactical – Meet the emergency water supply needs of the region•Strategic – Meet the future water supply needs of the region• Most Cost-effective Solution

•Construction – utilize onsite rock for dam construction•Energy•Operations & Maintenance

• Water Supply Integration with Lake Catoma – Same ecosystem which allows for optimization of raw water sources•Environmental – integrated with the watershed management plan and required minimum flows downstream •Social Benefits – Provide water for growth and recreational opportunities for the community

Duck River Water Supply Project

•Provide a significant boost to the local economy during construction•Sends the message to local and perspective industries that Cullman is prepared to meet the future water needs•An overall sustainable solution for the region

"Sustainability means providing an adequate and reliable water supply of desired quality — now and for future generations — in a manner that integrates economic growth, environmental protection and social development.“

American Water Works Association

Questions?