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Hiwassee Dam and powerhouse. This plant is in a remote location and has relatively few visitors. The reception is correspondingly small. Its scheme of lighting may be noted. The round holes in the ceiling conceal "downlight" units which concentrate strong direct light on persons and objects from invisible sources. Background lighting is supplied from tubular units laid in coves along two sides of the room which throw light chiefly on the upper part of the walls and the light colored portion of the ceiling. Visible light fixtures are combined with air conditioning outlets and are decorative only. A large window along the left side of the room permits observation of the control room
Chickamauga Dam and powerhouse. View of generator hall, looking towards reception room end. Upper row of three large windows is overlook for reception room. Three windows beneath are those of control room (compare with K 2313). Balcony for communication and view in front of control room windows. Roof is carried by rigid steel arches which spring from crane rail level; steel purlins, exposed precast concrete slab. Windows of hall are glass brick for insulation. Translucent plastic discs suspended from standard highboy lighting units conceal view or direct reflection of filaments and reflect spill light onto ceiling, thus generally brightening the space. Floor is ceramic tile; walls, glazed structural tile up to crame rail, exposed concrete above
Chickamauga Dam and powerhouse. Main control room and partial view of balcony in front of it (compare with end wall in K 2304). Large glass panels permit observation by visitors and view of plant by control room operators. Ceiling of control room is assymmetric barrel vault with acoustic tile surface; all light is indirect from reflectors above low soffit along front of room. In more recent installations, control equipment is gray instead of black to reduce eye fatigue by lessening contrast
Chickamauga Dam and powerhouse. Main control room and partial view of balcony in front of it (compare with end wall in K 2304). Large glass panels permit observation by visitors and view of plant by control room operators. Ceiling of control room is assymmetric barrel vault with acoustic tile surface; all light is indirect from reflectors above low soffit along front of room. In more recent installations, control equipment is gray instead of black to reduce eye fatigue by lessening contrast
Hiwassee Dam and powerhouse. View of control building (compare description of K 2265). Circular steel cover in front occurs over generator and can be lifted by crane for access to the latter. Control building contains entrance vestibule in center, reception facilities and offices in lower wing with continuous glazing to the left; control room (windowless) and air conditioning (three circular louvers) in the higher wing at right. Note alternating direction of formwork. In this instance, wall panels, 4'x10', were precast and lifted into place by cranes
Hiwassee Dam and powerhouse. Detailed view of dam with powerhouse in foreground, one unit installed at the time photograph was taken. Powerhouse is semi-outdoor type in that crane for installing and removing generator is exposed. Deck visible in picture is roof of power plant proper with control building projecting above
Chickamauga Dam and powerhouse. Main control room and partial view of balcony in front of it (compare with end wall in K 2304). Large glass panels permit observation by visitors and view of plant by control room operators. Ceiling of control room is assymmetric barrel vault with acoustic tile surface; all light is indirect from reflectors above low soffit along front of room. In more recent installations, control equipment is gray instead of black to reduce eye fatigue by lessening contrast
Chickamauga Dam and powerhouse. View of generator hall, looking towards reception room end. Upper row of three large windows is overlook for reception room. Three windows beneath are those of control room (compare with K 2313). Balcony for communication and view in front of control room windows. Roof is carried by rigid steel arches which spring from crane rail level; steel purlins, exposed precast concrete slab. Windows of hall are glass brick for insulation. Translucent plastic discs suspended from standard highboy lighting units conceal view or direct reflection of filaments and reflect spill light onto ceiling, thus generally brightening the space. Floor is ceramic tile; walls, glazed structural tile up to crame rail, exposed concrete above
Chickamauga Dam and powerhouse. View of generator hall, looking towards reception room end. Upper row of three large windows is overlook for reception room. Three windows beneath are those of control room (compare with K 2313). Balcony for communication and view in front of control room windows. Roof is carried by rigid steel arches which spring from crane rail level; steel purlins, exposed precast concrete slab. Windows of hall are glass brick for insulation. Translucent plastic discs suspended from standard highboy lighting units conceal view or direct reflection of filaments and reflect spill light onto ceiling, thus generally brightening the space. Floor is ceramic tile; walls, glazed structural tile up to crame rail, exposed concrete above
Hiwassee Dam and powerhouse. This plant is in a remote location and has relatively few visitors. The reception is correspondingly small. Its scheme of lighting may be noted. The round holes in the ceiling conceal "downlight" units which concentrate strong direct light on persons and objects from invisible sources. Background lighting is supplied from tubular units laid in coves along two sides of the room which throw light chiefly on the upper part of the walls and the light colored portion of the ceiling. Visible light fixtures are combined with air conditioning outlets and are decorative only. A large window along the left side of the room permits observation of the control room
Summary
Public domain photograph of North Carolina in 1930s, free to use, no copyright restrictions image - Picryl description
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north carolina
cherokee county
hiwassee dam
safety film negatives
hiwassee
dam
powerhouse
plant
visitors
reception
scheme
round
holes
round holes
downlight
units
light
persons
objects
sources
background
coves
sides
two sides
room
part
walls
portion
visible
fixtures
visible light fixtures
air
outlets
window
observation
control
united states history
library of congress
Date
01/01/1933
Location
cherokee county
Source
Library of Congress
Link
Copyright info
No known restrictions on images made by the U.S. government; images copied from other sources may be restricted. For information, see U.S. Farm Security Administration/Office of War Information Black & White Photographs http://www.loc.gov/rr/print/res/071_fsab.html