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Guntersville Dam and powerhouse. Generator hall. Roof is supported by trusses with arched bottom chords, concealed by ceiling made up of asbestos boards on steel furring. Ceiling also serves as insulation and plenum chamber and permits recessing of highbay reflectors which are louvered at bottom to eliminate glare. These reflectors furnish the main working light and throw the generators upon which they are concentrated into strong relief; general illumination of the space comes from indirect reflectors concealed behind the crane relief and turned towards the ceiling. Floor is ceramic tile; wall, glazed structural tile up to ceiling, but of lighter color above crane rail
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Guntersville Dam and powerhouse. Generator hall. Roof is supported by trusses with arched bottom chords, concealed by ceiling made up of asbestos boards on steel furring. Ceiling also serves as insulation and plenum chamber and permits recessing of highbay reflectors which are louvered at bottom to eliminate glare. These reflectors furnish the main working light and throw the generators upon which they are concentrated into strong relief; general illumination of the space comes from indirect reflectors concealed behind the crane relief and turned towards the ceiling. Floor is ceramic tile; wall, glazed structural tile up to ceiling, but of lighter color above crane rail
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
Pickwick Dam. Control room at Pickwick powerhouse with equipment for first two units in place. All principal lighting is indirect to avoid reflections on instrument faces. Recessed lights along rear wall illuminate back of main panel. Ceiling is acoustic tile; floor, linoleum. Series of glass panels in back of operator seated at desk permits view of generator hall such as appears on K 1849. Also, by means of a balcony visitors can inspect control room through these panels
Pickwick Dam. Control room at Pickwick powerhouse with equipment for first two units in place. All principal lighting is indirect to avoid reflections on instrument faces. Recessed lights along rear wall illuminate back of main panel. Ceiling is acoustic tile; floor, linoleum. Series of glass panels in back of operator seated at desk permits view of generator hall such as appears on K 1849. Also, by means of a balcony visitors can inspect control room through these panels
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
Guntersville Dam and powerhouse. General view of spillway and powerhouse. The latter encloses three units, is intended to extend eventually to a fourth. Note one of two traveling gantry cranes on spillway deck. Main generator hall built in brick because it is in flood-proof portion; downstream bay which houses control equipment in lower stories and offices above is in concrete on account of flood hazard
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
Guntersville Dam and powerhouse. General view of spillway and powerhouse. The latter encloses three units, is intended to extend eventually to a fourth. Note one of two traveling gantry cranes on spillway deck. Main generator hall built in brick because it is in flood-proof portion; downstream bay which houses control equipment in lower stories and offices above is in concrete on account of flood hazard
Guntersville Dam and powerhouse. Generator hall. Roof is supported by trusses with arched bottom chords, concealed by ceiling made up of asbestos boards on steel furring. Ceiling also serves as insulation and plenum chamber and permits recessing of highbay reflectors which are louvered at bottom to eliminate glare. These reflectors furnish the main working light and throw the generators upon which they are concentrated into strong relief; general illumination of the space comes from indirect reflectors concealed behind the crane relief and turned towards the ceiling. Floor is ceramic tile; wall, glazed structural tile up to ceiling, but of lighter color above crane rail
Summary
Public domain image of a large historic building, city hall, urban architecture, free to use, no copyright restrictions - Picryl description
Tags
alabama
marshall county
guntersville dam
safety film negatives
guntersville
dam
powerhouse
generator
hall
generator hall
roof
trusses
bottom
chords
bottom chords
asbestos
boards
asbestos boards
steel
insulation
plenum
chamber
plenum chamber
highbay
reflectors
highbay reflectors
glare
light
generators
relief
illumination
space
crane
crane relief
floor
tile
wall
color
rail
history of alabama
united states history
library of congress
Date
01/01/1933
Location
alabama
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