Alternatives for physically modifying John Sevier detention dam to allow fish passage

Technical Report · Sat Sep 01 04:00:00 EDT 1984

OSTI ID:6258433

Studies conducted in the vicinity of John Sevier Steam-Electric Plant (JSF) indicated some modification of the fish assemblage from that expected. By blocking movements of fish between Cherokee Reservoir and the upper Holston River, John Sevier detention dam has affected the fisheries in both systems. Providing passage for river-spawning fish at John Sevier detention dam might improve fish communities and fisheries in Cherokee Reservoir as well as upstream habitats. This would include enhanced reproductive success of river-spawning species found in Cherokee Reservoir (e.g., white bass and possibly striped bass and paddlefish) and repopulation of John Sevier Reservoir and the upper Holston River by several species presently found only downstream of the detention dam. TVA has identified and studied several alternatives that alone or in combination might improve the fisheries. Cost estimates were developed for three alternatives. These three alternatives with cost estimates are discussed briefly along with two other alternatives for which cost estimates have not been made. Merits of the three alternatives which have at least some possibility to improve migratory fish stocks are discussed in detail. 5 references.

• Research Organization: Tennessee Valley Authority, Knoxville (USA)
• OSTI ID: 6258433
• Report Number(s): TVA/ONR/WRF-84/7; ON: DE85900674
• Country of Publication: United States
• Language: English

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54 ENVIRONMENTAL SCIENCES
COMPARATIVE EVALUATIONS
COST
DAMS
ENVIRONMENTAL IMPACTS
FEDERAL REGION IV
FISH PASSAGE FACILITIES
FISHING INDUSTRY
FOSSIL-FUEL POWER PLANTS
INDUSTRY
MIGRATION
NORTH AMERICA
POWER PLANTS
TENNESSEE
THERMAL POWER PLANTS
USA