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2014 Watershed Rehabilitation Update

The 2014 Farm Bill made about $262 million available for rehabilitation of 151 dams in 26 states, including Tennessee.  These watershed management projects provide an estimated $2.2 billion in annual benefits in reduced flooding and erosion damages, recreation, water supplies and wildlife habitat for roughly 47 million people. Projects were identified based on recent rehabilitation investments and the risks to life and property if a dam failure occurred.

Projects in Tennessee include:  

Project Name Dam Number TA Google Maps
Mary's Creek #9 (Shelby County) 9 $50,000 See Map
Pine Creek #4 (Scott Couinty) 4 $310,000 See Map

Supplemental Watershed Plans

Finding of No Significant Impact 

For 

Supplemental Watershed Work Plan No. 3 and Environmental Assessment 

For

Pine Creek Watershed Dam No. 4 for the Town of Oneida, Tennessee (Scott County, Tennessee)

Supplemental Watershed Work Plan No. 3 and Environmental Assessment (EA) describes a plan to meet all applicable USDA-Natural Resources Conservation Service (NRCS) and State of Tennessee dam safety and performance standards, and to extend the useful life of Pine Creek Watershed Dam No. 4 beyond its original evaluated life expectancy. The dam was originally constructed in 1966 with a 50-year service life. The dam was designed and constructed as a Significant Hazard Class dam. NRCS recently classified Pine Creek Watershed Dam No. 4 as a High Hazard Class dam. The new life expectancy is 70 years. Pine Creek Watershed Dam No. 4 and Howard H. Baker Senior Lake, located on North Fork Pine Creek upstream from developed areas of Scott County, provide municipal water supply, flood control, and fish and wildlife development. The dam and reservoir are owned and operated by the Town of Oneida, Tennessee.

The purpose of the Project (Project Purpose) is to 1) maintain the current level of flood damage reduction provided by Pine Creek Watershed Dam No. 4 for public safety, bridges, roads, agricultural and other lands, buildings, structures, infrastructure, and other features, 2) improve the existing municipal water supply availability provided for the Town of Oneida, and 3) comply with applicable design, performance, and safety criteria for a High Hazard Class dam.

The need for this Project (Project Need) is to 1) continue providing flood damage reduction downstream from the dam, 2) address applicable NRCS and State of Tennessee standards and design criteria for public health and safety to reduce the risk of loss of human life, and 3) continue providing source water for public water supplies from Pine Creek Watershed Dam No. 4 and Howard H. Baker Senior Lake.

The Sponsor’s primary objectives for this Project are to meet or exceed state and federal dam safety criteria; maintain the current level of flood protection; and improve the current level of availability of water supplies. Data developed during this assessment are available for public review at the following contact:

L. Michelle Beasley
United States Department of Agriculture
Natural Resources Conservation Service
801 Broadway, 675 US Courthouse
Nashville, TN 37203
Michelle.Beasley@tn.usda.gov

Pine Creek Watershed Dam No. 4

Supplemental Watershed Work Plan No. 3 and Environmental Assessment (EA) describes a plan to meet all applicable USDA-Natural Resources Conservation Service (NRCS) and State of Tennessee dam safety and performance standards, and to extend the useful life of Pine Creek Watershed Dam No. 4 beyond its original evaluated life expectancy. The dam was originally constructed in 1966 with a 50-year service life. The dam was designed and constructed as a Significant Hazard Class dam. NRCS recently classified Pine Creek Watershed Dam No. 4 as a High Hazard Class dam. The new life expectancy is 70 years. Pine Creek Watershed Dam No. 4 and Howard H. Baker Senior Lake, located on North Fork Pine Creek upstream from developed areas of Scott County, provide municipal water supply, flood control, and fish and wildlife development. The dam and reservoir are owned and operated by the Town of Oneida, Tennessee.

The purpose of the Project (Project Purpose) is to 1) maintain the current level of flood damage reduction provided by Pine Creek Watershed Dam No. 4 for public safety, bridges, roads, agricultural and other lands, buildings, structures, infrastructure, and other features, 2) improve the existing municipal water supply availability provided for the Town of Oneida, and 3) comply with applicable design, performance, and safety criteria for a High Hazard Class dam.

The need for this Project (Project Need) is to 1) continue providing flood damage reduction downstream from the dam, 2) address applicable NRCS and State of Tennessee standards and design criteria for public health and safety to reduce the risk of loss of human life, and 3) continue providing source water for public water supplies from Pine Creek Watershed Dam No. 4 and Howard H. Baker Senior Lake.

The Sponsor’s primary objectives for this Project are to meet or exceed state and federal dam safety criteria; maintain the current level of flood protection; and improve the current level of availability of water supplies.

The no action, rehabilitation of the existing dam, and decommissioning with nonstructural measures alternatives were evaluated in detail. The other non-structural measures alternative, floodproofing, was not evaluated in detail. The recommended alternative is to rehabilitate the existing dam. This is also the National Economic Development (NED) alternative, which is the alternative that maximizes net national economic development benefits consistent with protecting the nation's environment.

Dam rehabilitation will include: 1) raising the top of dam elevation by 0.9 foot, 2) installing a Roller Compacted Concrete-(RCC-) armored overtopping of the entire dam that will serve as the auxiliary spillway, 3) filling the existing auxiliary spillway, 4) adding a stilling basin at the bottom of the RCC, 5) installing a sand diaphragm, 6) relocating the water supply pump station, 7) replacing the 30-inch diameter principal spillway riser structure and conduit with 48-inch diameter, and 8) increasing the elevation of the principal spillway riser inlet by 1.0 foot.

Economic benefits will exceed costs. Sponsor will incur at least 35% of the total rehabilitation Project cost. The planned action will bring Pine Creek Watershed Dam No. 4 into compliance with current, applicable NRCS and State of Tennessee dam safety and performance standards for High Hazard Class dams.

This plan is intended to document the requirements of the National Historic Preservation Act of 1966, the Endangered Species Act of 1973, and other applicable environmental laws and Executive Orders for this federal action. The plan documents the impacts on the relevant resource concerns for purposes of the National Environmental Policy Act of 1969.

Download the complete Pine Creek Document PDF file here.

Learn more about this program.