Aquatic Weeds Treatment Schedule

The summer heat is on. That means the Tennessee Valley Authority’s aquatic plant management teams are out on the water surveying public access areas throughout its reservoir system.

According to Dr. Brett Hartis, TVA Aquatic Plant Management program manager, TVA manages aquatic plants in developed public-access areas like boat ramps, swim beaches and courtesy piers on its reservoirs on an as-needed basis when recreational use and/or access become seriously hindered. “Our goal is to provide access for everyone to our reservoirs through a balanced approach to controlling nuisance aquatic plants,” he says. “We do our best to preserve the positive aspects of aquatic plants, like providing fish and wildlife habitat, while attempting to negate the negative impacts, like hindering recreational use by the public.”

Keeping developed public areas weed-free is a top priority for Hartis. A 2017 University of Tennessee study estimates that recreation on the Tennessee River generates 130,000 jobs and the value of the Tennessee River reservoir system for the region is nearly $12 billion.

“The TVA reservoirs are worth about $1 million on average per shoreline mile,” says Hartis. “There is a lot of pressure on us to manage aquatic plants to balance the revenue and jobs the river brings to local communities.”

TVA’s herbicide applications are prescribed and assigned by TVA staff based on intensive surveying and monitoring. TVA contractors then apply herbicides at the direction of TVA staff in those areas deemed in need of management. In order to better differentiate between privately contracted and TVA-directed management, TVA contractor vessels are marked with “TVA Contractor” signs and have a flashing light to indicate when an application is taking place. Following management, TVA staff then resurveys and monitors each site following treatment. (NOTE: Management treatment schedules are contingent upon weather conditions.)

Guntersville Reservoir Herbicide Treatment Schedule

September 5th  to September 8th

Browns Creek—Guntersville Municipal Park from Stewart boat ramp to Kiwanis pier, Guntersville Visitors Center, Guntersville City Harbor

Town Creek (Marshall County)— Guntersville State Park (main), Guntersville State Park cabins, Guntersville State Park store

North Sauty Creek—Goosepond fishing pier and ramp, Goosepond swim area, Goosepond amphitheater

Roseberry Creek— Scottsboro Senior Center, Jackson County Park

B. B. Comer Bridge—B. B. Comer public ramp

Nickajack Reservoir Herbicide Treatment Schedule

September 5th to 8th, 2017

Shellmound Recreation Area—Ramp, pier and swim beach

Nickajack Cove—Cole City ramp and pier; Mapleview ramp and swim area

Haletown Ramp—Ramp and pier

Bennett Lake—TWRA ramp and handicap pier

Marion County Park—Ramp, swim beach, recreation area, campground and fishing pier

Pickwick Reservoir Herbicide Treatment Schedule

September 5th to 8th, 2017

Bear Creek Area—Rose Trail ramp

Bruton Branch Area—Bruton Branch Park

Pickwick State Park—Pickwick State Park pier and swim area

Waterloo Area—Waterloo ramps above and County Rd. 14

Wright Area—Brush Creek Park ramp and campground

Treatment Maps

Click below to see a map of potential management zones for each of the reservoirs on which TVA currently manages aquatic plants. Management areas are highlighted in bright green:
Melton Hill
Watts Bar

See detailed treatment plans at right. Questions? Comments? Send them via email to