Norris
Dam was not the first Dam built to provide electricity on the
Tennessee River or it's tributaries, so why is it important? Norris
Dam was the first major project of the newly created Tennessee Valley
Authority. Construction of Norris Dam began in 1933, just a
few months after the creation of TVA, and was completed in 1936.
When the dam was completed, it provided the largest reservoir on a
tributary of the Tennessee River.
The Norris Dam project displaced from
2,9003 to 3,500 families consisting of approximately 14,000 people
and required the removal of 5,000 graves. The Norris Dam project was
massive it it's scope and in it's impact on the families in the
region.
The following dams that are now
contolled by the TVA were built before the Norris Dam project. The
ones marked with an asterisk are part of the Muscle Shoals area.
Muscle Shoals is in Middle Tennessee, but these dams are included
because of their impact of the creation on the Tennessee Valley
Authority. This list is not meant to be a study of the dam projects,
but is simply a list from Wickipedia that has been put in
chronilogical order.
Ocoee Dam No. 1 (1911)
Ocoee
Dam Number 1 is a
hydroelectric
dam on the
Ocoee
River in
Polk
County in the U.S. state of
Tennessee.
The dam impounds the 1,930-acre (780 ha)
Parksville
Reservoir (often called Ocoee Lake), and is the farthest
downstream of four dams on the Toccoa/Ocoee River owned and operated
by the
Tennessee
Valley Authority. Completed in 1911, Ocoee No. 1 was one of the
first hydroelectric projects in Tennessee and remains the oldest dam
in the TVA system.
[1][2]
Wilbur Dam (1912)
Wilbur Dam is a
hydroelectric
dam on the
Watauga
River in
Carter
County, in the U.S. state of
Tennessee.
It is one of two dams on the river owned and operated by the
Tennessee
Valley Authority. The dam impounds Wilbur Lake, which extends for
about 3 miles (4.8 km) up the Watauga to the base of
Watauga
Dam.
[1]
Completed in 1912, Wilbur Dam was one of the first major
hydroelectric projects in Tennessee, and remains one of the oldest
dams in the TVA system (only
Ocoee
Dam No. 1 is older).
[2]
Wilbur Dam is a concrete gravity overflow dam 77 feet (23 m)
high and 375 feet (114 m) long, and has a generating capacity of
10,700 kilowatts.
[3][4]
The dam's spillway has four radial gates with a combined discharge of
34,000 cubic feet per second (960 m
3/s).
[2]
The dam is located at just over 34 miles (55 km) above the mouth
of the Watauga, a few miles upstream from
Elizabethton,
Tennessee.
In 1907, the Doe River Light &
Power Company began purchasing land rights for construction of Wilbur
Dam, although the company struggled with finances and sold the
project to the Watauga Power Company in 1910. Watauga Power completed
the dam in just two years, and found a ready market for the dam's
electricity at nearby Elizabethton. In 1927, the dam was purchased by
the Tennessee Central Service Company, which changed its name to East
Tennessee Light & Power Company two years later. The flood of
August 1940 overtopped the dam and destroyed its powerhouse, and five
years later, East Tennessee Light & Power sold its assets,
including Wilbur Dam, to the Tennessee Valley Authority.
[1]
Wilbur Dam was originally
equipped with a flashboard-controlled spillway (similar to nearby
Nolichucky
Dam). In 1947, TVA outfitted the dam with a new gate-controlled
spillway and raised it 5 feet (1.5 m) to accommodate the
tailwaters of Watauga Dam, which was then nearing completion.
[4]
Ocoee Dam No. 2 (1913)
Ocoee
Dam Number 2 is a
hydroelectric
dam on the
Ocoee
River in
Polk
County in the U.S. state of
Tennessee.
The dam impounds the Ocoee No. 2 Reservoir and is one of four dams on
the Toccoa/Ocoee River owned and operated by the
Tennessee
Valley Authority. Ocoee Dam No. 2— which was completed in 1913—
is perhaps most notable for its design, which utilizes a wooden
flume
that carries water from the reservoir down the side of the Ocoee
Gorge to the dam's powerhouse 5 miles (8.0 km) downstream. Ocoee
No. 2 is also situated at the center of one of the nation's top
whitewater
rafting locations, and the dam's releases help to maintain
consistent rapids on the river during warmer months.
[1]
Nolachucky Dam (1912-1913)
Nolichucky Dam was built by the Tennessee Eastern Electric Company
(TEEC) in 1912-1913 for
hydroelectricity
generation.
[4]
The dam was initially equipped with two generators, and TEEC added
two more in 1923.
[3]
In 1941, the East Tennessee Light & Power Company obtained
ownership of the dam when it purchased TEEC's assets.
[5]
The Tennessee Valley Authority purchased East Tennessee Light &
Power in 1945 for a lump sum that included $1.47 million for
Nolichucky Dam. TVA made various improvements, and at its height, the
dam was capable of producing 10,640
kilowatts
of electricity.
[3]
TVA used the dam for power generation until 1972, when
sediment
buildup in Davy Crockett Lake made continued electricity generation
impractical.
[2]
The dam and reservoir are now used for
flood
control and recreation;
[1]
the reservoir is a wildlife management area.
[2]
Cheoah Dam (1916)
The Cheoah project began in 1916 as a
construction camp at the Narrows where the Little Tennessee River
flowed through a narrow gorge, and was completed in 1919. the first
of several constructed by the Tallassee Power Company, now
Tapoco.
Wilson Dam (1918-1924)*
Construction on Wilson Dam began in 1918 and was completed in 1924
under supervision of
Hugh
L. Cooper.
[5]
The Wilson Dam actually predates the TVA, but was later placed under
the authority of the TVA. The dam is 137 feet (42 m) high and
stretches 4,541 feet (1,384 m) across the Tennessee River.
[5]
The cost to build the dam was almost $47 million.
[6]
Santeetlah Dam (1925-1928)
Santeetlah Dam is a
hydroelectric
development on the
Cheoah
River (
river
mile 9) in
Graham
County,
North
Carolina. The
dam
together with a pipeline/tunnel facility, and a powerhouse form the
Santeetlah Development. The Santeetlah powerhouse is located on the
left bank of the Cheoah Reservoir portion of the
Little
Tennessee River five miles (8 km) upstream of the
Cheoah
Dam.Santeetlah powerhouse on the Cheoah Reservoir. The Santeetlah Project, which began in 1925, was completed in 1928
by the Tallassee Power Company (now
Tapoco).
Blue Ridge Dam (1925-1931)
Blue Ridge Dam was built by the Toccoa Electric Power Company, a
subsidiary of the
Tennessee
Electric Power Company (TEPCO), which operated several
hydroelectric plants in nearby Tennessee, including
Ocoee
Dam No. 1 and
Ocoee
Dam No. 2. Construction began in 1925, and the dam went into
operation July 1, 1931. At the time of its completion, the dam had a
generating capacity of 20 megawatts and was the most modern power dam
in the TEPCO system, requiring a staff of just six employees.
[4][5]
Subsequent upgrades have increased the dams generating capacity to 22
megawatts.
[5]
With
the passage of the TVA Act in 1933, the Tennessee Valley Authority
was given oversight of the
Tennessee
River watershed (which included the Toccoa River). TEPCO
challenged the
constitutionality
of the TVA Act in federal court, but the
U.S.
Supreme Court upheld the law in 1939, and TEPCO was forced to
sell its assets to TVA for $78 million in August of that year.
[6]
This sum included $5 million for Blue Ridge Dam.
[1]
Soon after the dam began operations
in 1931, its penstock partially collapsed. To prevent this from
happening again, TVA has severely lowered the water level in the
reservoir when it conducts periodic dam inspections (approximately
once every five years), which require dewatering of the penstock. A
project was initiated in 2010 to repair the penstock, stabilize the
intake tower base, and repair and stabilize the upstream and
downstream faces of the dam, thus eliminating the future need for
severe reservoir drawdowns.
[5]
Calderwood Dam (1930)
|
Photo by Brian
Stansberry |
Calderwood Dam is a
hydroelectric
dam located along the
Little
Tennessee River in
Blount
and
Monroe
counties, in the U. S. state of
Tennessee.
Completed in 1930, the dam is owned and maintained by
Tapoco,
a subsidiary of the
Aluminum
Company of America (Alcoa), although the
Tennessee
Valley Authority controls the dam's reservoir levels from
Fontana
Dam further upstream.
[1]
Calderwood Dam is named for Alcoa engineer Isaac Glidden Calderwood
(1871–1941), who supervised much of the company's early Little
Tennessee River operations.
[2]
In 1989, Calderwood Dam was placed on the
National
Register of Historic Places. The listing was expanded in 1990 and
again in 2004 to include most of the dam's substructures.
[3]
Norris Dam (1933)