Today, Glen Canyon and Lake Powell are managed by the U.S. Department of the Interior within Glen Canyon National Recreation Area.
They discovered a petroglyph in the upper part of the canyon depicting the appearance of the Crab Nebula in 1054. [68], —Russell Martin, A Story That Stands Like A Dam (1990)[69], With the Colorado River safely diverted around the canyon, construction could begin on the actual concrete arch dam. Each generator is driven by a 254,000 horsepower vertical-axis Francis turbine. “Glen Canyon died in 1963,” wrote the renowned conservationist David Brower, who founded Friends of the Earth. Glen Canyon Stainless Steel Gas Grill. Water is used so intensively in the United States now that it is a rare year indeed when any of the Colorado River actually reaches the sea. This is a large, solid sandstone amphitheater. [20] Possible locations for this dam were debated for years, and in fact the Bureau of Reclamation's first study for a dam at Glen Canyon was made in 1924, in addition to studies for locations at Black and Boulder Canyons lower on the Colorado, below Grand Canyon. [54][63] The right tunnel would be used for carrying the Colorado's normal flow around the dam site, while the left tunnel, 33 feet (10 m) above the water, would only be used during floods. The Sierra Club lost its IRS tax-exempt status a day after the advertisement was released; ostensibly, this was due to its disruptive political activities. The geologic formations of the Colorado Plateau also affect vegetation communities by forming different soils and constraining water flow.
Water managers and utilities state that the dam is a major source of renewable energy and provides a vital defense against severe droughts. About 100 million US tons (90,700,000 metric tons) of sediment are trapped behind the dam annually, equal to about 30,000 dump truck loads per day. Be aware that your odometer may not register exactly the same mileage listed here.
[38] A common misconception is that the environmentalists were given a choice between damming Echo Park and damming Glen Canyon, but the USBR "had always planned to build a dam at Glen Canyon, regardless of the outcome of the Echo Park debate". To delay having to use the spillways, the USBR installed plywood flashboards (later replaced by steel) atop the gates to increase the lake level. It’s about protecting what sustains us. Mile 50.1, Hole-in-the-Rock Arch:
After the near disaster in 1983, the USBR has maintained a minimum of 2.4 million acre feet (3.0 km3) of flood-storage space in Lake Powell at the beginning of each year, to guard against unanticipated high runoff.
Construction of this passageway was very difficult. We decide to call it Glen Canyon. The grass was later planted to prevent the dirt from getting blown away – but also provides a mild cooling effect through evapotranspiration, reducing temperatures inside the power plant. [9] It became "a catalyst for the modern environmental movement,"[10] and was one of the last dams of its size to be built in the United States. [90] Even this additional capacity was exhausted; discharges through the left spillway reached 32,000 cubic feet per second (910 m3/s), and the right spillway was opened to 15,000 cubic feet per second (420 m3/s). (928) 608-6200 [27] In 1963, Arizona's congressional delegation proposed these dams as part of the Central Arizona Project to accomplish these goals. [44] The Colorado River flowed gently across the bottom of the canyon, in sharp contrast to the roaring rapids upstream in Cataract Canyon and downstream in the Grand Canyon. [85], The Bureau of Reclamation projected that once Lake Powell filled, the total bank storage would stabilize at approximately 6 million acre feet (7.4 km3), and henceforth would fluctuate depending on water levels in the reservoir.
They discovered a petroglyph in the upper part of the canyon depicting the appearance of the Crab Nebula in 1054. [68], —Russell Martin, A Story That Stands Like A Dam (1990)[69], With the Colorado River safely diverted around the canyon, construction could begin on the actual concrete arch dam. Each generator is driven by a 254,000 horsepower vertical-axis Francis turbine. “Glen Canyon died in 1963,” wrote the renowned conservationist David Brower, who founded Friends of the Earth. Glen Canyon Stainless Steel Gas Grill. Water is used so intensively in the United States now that it is a rare year indeed when any of the Colorado River actually reaches the sea. This is a large, solid sandstone amphitheater. [20] Possible locations for this dam were debated for years, and in fact the Bureau of Reclamation's first study for a dam at Glen Canyon was made in 1924, in addition to studies for locations at Black and Boulder Canyons lower on the Colorado, below Grand Canyon. [54][63] The right tunnel would be used for carrying the Colorado's normal flow around the dam site, while the left tunnel, 33 feet (10 m) above the water, would only be used during floods. The Sierra Club lost its IRS tax-exempt status a day after the advertisement was released; ostensibly, this was due to its disruptive political activities. The geologic formations of the Colorado Plateau also affect vegetation communities by forming different soils and constraining water flow.
Water managers and utilities state that the dam is a major source of renewable energy and provides a vital defense against severe droughts. About 100 million US tons (90,700,000 metric tons) of sediment are trapped behind the dam annually, equal to about 30,000 dump truck loads per day. Be aware that your odometer may not register exactly the same mileage listed here.
[38] A common misconception is that the environmentalists were given a choice between damming Echo Park and damming Glen Canyon, but the USBR "had always planned to build a dam at Glen Canyon, regardless of the outcome of the Echo Park debate". To delay having to use the spillways, the USBR installed plywood flashboards (later replaced by steel) atop the gates to increase the lake level. It’s about protecting what sustains us. Mile 50.1, Hole-in-the-Rock Arch:
After the near disaster in 1983, the USBR has maintained a minimum of 2.4 million acre feet (3.0 km3) of flood-storage space in Lake Powell at the beginning of each year, to guard against unanticipated high runoff.
Construction of this passageway was very difficult. We decide to call it Glen Canyon. The grass was later planted to prevent the dirt from getting blown away – but also provides a mild cooling effect through evapotranspiration, reducing temperatures inside the power plant. [9] It became "a catalyst for the modern environmental movement,"[10] and was one of the last dams of its size to be built in the United States. [90] Even this additional capacity was exhausted; discharges through the left spillway reached 32,000 cubic feet per second (910 m3/s), and the right spillway was opened to 15,000 cubic feet per second (420 m3/s). (928) 608-6200 [27] In 1963, Arizona's congressional delegation proposed these dams as part of the Central Arizona Project to accomplish these goals. [44] The Colorado River flowed gently across the bottom of the canyon, in sharp contrast to the roaring rapids upstream in Cataract Canyon and downstream in the Grand Canyon. [85], The Bureau of Reclamation projected that once Lake Powell filled, the total bank storage would stabilize at approximately 6 million acre feet (7.4 km3), and henceforth would fluctuate depending on water levels in the reservoir.
They discovered a petroglyph in the upper part of the canyon depicting the appearance of the Crab Nebula in 1054. [68], —Russell Martin, A Story That Stands Like A Dam (1990)[69], With the Colorado River safely diverted around the canyon, construction could begin on the actual concrete arch dam. Each generator is driven by a 254,000 horsepower vertical-axis Francis turbine. “Glen Canyon died in 1963,” wrote the renowned conservationist David Brower, who founded Friends of the Earth. Glen Canyon Stainless Steel Gas Grill. Water is used so intensively in the United States now that it is a rare year indeed when any of the Colorado River actually reaches the sea. This is a large, solid sandstone amphitheater. [20] Possible locations for this dam were debated for years, and in fact the Bureau of Reclamation's first study for a dam at Glen Canyon was made in 1924, in addition to studies for locations at Black and Boulder Canyons lower on the Colorado, below Grand Canyon. [54][63] The right tunnel would be used for carrying the Colorado's normal flow around the dam site, while the left tunnel, 33 feet (10 m) above the water, would only be used during floods. The Sierra Club lost its IRS tax-exempt status a day after the advertisement was released; ostensibly, this was due to its disruptive political activities. The geologic formations of the Colorado Plateau also affect vegetation communities by forming different soils and constraining water flow.
Water managers and utilities state that the dam is a major source of renewable energy and provides a vital defense against severe droughts. About 100 million US tons (90,700,000 metric tons) of sediment are trapped behind the dam annually, equal to about 30,000 dump truck loads per day. Be aware that your odometer may not register exactly the same mileage listed here.
[38] A common misconception is that the environmentalists were given a choice between damming Echo Park and damming Glen Canyon, but the USBR "had always planned to build a dam at Glen Canyon, regardless of the outcome of the Echo Park debate". To delay having to use the spillways, the USBR installed plywood flashboards (later replaced by steel) atop the gates to increase the lake level. It’s about protecting what sustains us. Mile 50.1, Hole-in-the-Rock Arch:
After the near disaster in 1983, the USBR has maintained a minimum of 2.4 million acre feet (3.0 km3) of flood-storage space in Lake Powell at the beginning of each year, to guard against unanticipated high runoff.
Construction of this passageway was very difficult. We decide to call it Glen Canyon. The grass was later planted to prevent the dirt from getting blown away – but also provides a mild cooling effect through evapotranspiration, reducing temperatures inside the power plant. [9] It became "a catalyst for the modern environmental movement,"[10] and was one of the last dams of its size to be built in the United States. [90] Even this additional capacity was exhausted; discharges through the left spillway reached 32,000 cubic feet per second (910 m3/s), and the right spillway was opened to 15,000 cubic feet per second (420 m3/s). (928) 608-6200 [27] In 1963, Arizona's congressional delegation proposed these dams as part of the Central Arizona Project to accomplish these goals. [44] The Colorado River flowed gently across the bottom of the canyon, in sharp contrast to the roaring rapids upstream in Cataract Canyon and downstream in the Grand Canyon. [85], The Bureau of Reclamation projected that once Lake Powell filled, the total bank storage would stabilize at approximately 6 million acre feet (7.4 km3), and henceforth would fluctuate depending on water levels in the reservoir.
They discovered a petroglyph in the upper part of the canyon depicting the appearance of the Crab Nebula in 1054. [68], —Russell Martin, A Story That Stands Like A Dam (1990)[69], With the Colorado River safely diverted around the canyon, construction could begin on the actual concrete arch dam. Each generator is driven by a 254,000 horsepower vertical-axis Francis turbine. “Glen Canyon died in 1963,” wrote the renowned conservationist David Brower, who founded Friends of the Earth. Glen Canyon Stainless Steel Gas Grill. Water is used so intensively in the United States now that it is a rare year indeed when any of the Colorado River actually reaches the sea. This is a large, solid sandstone amphitheater. [20] Possible locations for this dam were debated for years, and in fact the Bureau of Reclamation's first study for a dam at Glen Canyon was made in 1924, in addition to studies for locations at Black and Boulder Canyons lower on the Colorado, below Grand Canyon. [54][63] The right tunnel would be used for carrying the Colorado's normal flow around the dam site, while the left tunnel, 33 feet (10 m) above the water, would only be used during floods. The Sierra Club lost its IRS tax-exempt status a day after the advertisement was released; ostensibly, this was due to its disruptive political activities. The geologic formations of the Colorado Plateau also affect vegetation communities by forming different soils and constraining water flow.
Water managers and utilities state that the dam is a major source of renewable energy and provides a vital defense against severe droughts. About 100 million US tons (90,700,000 metric tons) of sediment are trapped behind the dam annually, equal to about 30,000 dump truck loads per day. Be aware that your odometer may not register exactly the same mileage listed here.
[38] A common misconception is that the environmentalists were given a choice between damming Echo Park and damming Glen Canyon, but the USBR "had always planned to build a dam at Glen Canyon, regardless of the outcome of the Echo Park debate". To delay having to use the spillways, the USBR installed plywood flashboards (later replaced by steel) atop the gates to increase the lake level. It’s about protecting what sustains us. Mile 50.1, Hole-in-the-Rock Arch:
After the near disaster in 1983, the USBR has maintained a minimum of 2.4 million acre feet (3.0 km3) of flood-storage space in Lake Powell at the beginning of each year, to guard against unanticipated high runoff.
Construction of this passageway was very difficult. We decide to call it Glen Canyon. The grass was later planted to prevent the dirt from getting blown away – but also provides a mild cooling effect through evapotranspiration, reducing temperatures inside the power plant. [9] It became "a catalyst for the modern environmental movement,"[10] and was one of the last dams of its size to be built in the United States. [90] Even this additional capacity was exhausted; discharges through the left spillway reached 32,000 cubic feet per second (910 m3/s), and the right spillway was opened to 15,000 cubic feet per second (420 m3/s). (928) 608-6200 [27] In 1963, Arizona's congressional delegation proposed these dams as part of the Central Arizona Project to accomplish these goals. [44] The Colorado River flowed gently across the bottom of the canyon, in sharp contrast to the roaring rapids upstream in Cataract Canyon and downstream in the Grand Canyon. [85], The Bureau of Reclamation projected that once Lake Powell filled, the total bank storage would stabilize at approximately 6 million acre feet (7.4 km3), and henceforth would fluctuate depending on water levels in the reservoir.
They discovered a petroglyph in the upper part of the canyon depicting the appearance of the Crab Nebula in 1054. [68], —Russell Martin, A Story That Stands Like A Dam (1990)[69], With the Colorado River safely diverted around the canyon, construction could begin on the actual concrete arch dam. Each generator is driven by a 254,000 horsepower vertical-axis Francis turbine. “Glen Canyon died in 1963,” wrote the renowned conservationist David Brower, who founded Friends of the Earth. Glen Canyon Stainless Steel Gas Grill. Water is used so intensively in the United States now that it is a rare year indeed when any of the Colorado River actually reaches the sea. This is a large, solid sandstone amphitheater. [20] Possible locations for this dam were debated for years, and in fact the Bureau of Reclamation's first study for a dam at Glen Canyon was made in 1924, in addition to studies for locations at Black and Boulder Canyons lower on the Colorado, below Grand Canyon. [54][63] The right tunnel would be used for carrying the Colorado's normal flow around the dam site, while the left tunnel, 33 feet (10 m) above the water, would only be used during floods. The Sierra Club lost its IRS tax-exempt status a day after the advertisement was released; ostensibly, this was due to its disruptive political activities. The geologic formations of the Colorado Plateau also affect vegetation communities by forming different soils and constraining water flow.
Water managers and utilities state that the dam is a major source of renewable energy and provides a vital defense against severe droughts. About 100 million US tons (90,700,000 metric tons) of sediment are trapped behind the dam annually, equal to about 30,000 dump truck loads per day. Be aware that your odometer may not register exactly the same mileage listed here.
[38] A common misconception is that the environmentalists were given a choice between damming Echo Park and damming Glen Canyon, but the USBR "had always planned to build a dam at Glen Canyon, regardless of the outcome of the Echo Park debate". To delay having to use the spillways, the USBR installed plywood flashboards (later replaced by steel) atop the gates to increase the lake level. It’s about protecting what sustains us. Mile 50.1, Hole-in-the-Rock Arch:
After the near disaster in 1983, the USBR has maintained a minimum of 2.4 million acre feet (3.0 km3) of flood-storage space in Lake Powell at the beginning of each year, to guard against unanticipated high runoff.
Construction of this passageway was very difficult. We decide to call it Glen Canyon. The grass was later planted to prevent the dirt from getting blown away – but also provides a mild cooling effect through evapotranspiration, reducing temperatures inside the power plant. [9] It became "a catalyst for the modern environmental movement,"[10] and was one of the last dams of its size to be built in the United States. [90] Even this additional capacity was exhausted; discharges through the left spillway reached 32,000 cubic feet per second (910 m3/s), and the right spillway was opened to 15,000 cubic feet per second (420 m3/s). (928) 608-6200 [27] In 1963, Arizona's congressional delegation proposed these dams as part of the Central Arizona Project to accomplish these goals. [44] The Colorado River flowed gently across the bottom of the canyon, in sharp contrast to the roaring rapids upstream in Cataract Canyon and downstream in the Grand Canyon. [85], The Bureau of Reclamation projected that once Lake Powell filled, the total bank storage would stabilize at approximately 6 million acre feet (7.4 km3), and henceforth would fluctuate depending on water levels in the reservoir.
They discovered a petroglyph in the upper part of the canyon depicting the appearance of the Crab Nebula in 1054. [68], —Russell Martin, A Story That Stands Like A Dam (1990)[69], With the Colorado River safely diverted around the canyon, construction could begin on the actual concrete arch dam. Each generator is driven by a 254,000 horsepower vertical-axis Francis turbine. “Glen Canyon died in 1963,” wrote the renowned conservationist David Brower, who founded Friends of the Earth. Glen Canyon Stainless Steel Gas Grill. Water is used so intensively in the United States now that it is a rare year indeed when any of the Colorado River actually reaches the sea. This is a large, solid sandstone amphitheater. [20] Possible locations for this dam were debated for years, and in fact the Bureau of Reclamation's first study for a dam at Glen Canyon was made in 1924, in addition to studies for locations at Black and Boulder Canyons lower on the Colorado, below Grand Canyon. [54][63] The right tunnel would be used for carrying the Colorado's normal flow around the dam site, while the left tunnel, 33 feet (10 m) above the water, would only be used during floods. The Sierra Club lost its IRS tax-exempt status a day after the advertisement was released; ostensibly, this was due to its disruptive political activities. The geologic formations of the Colorado Plateau also affect vegetation communities by forming different soils and constraining water flow.
Water managers and utilities state that the dam is a major source of renewable energy and provides a vital defense against severe droughts. About 100 million US tons (90,700,000 metric tons) of sediment are trapped behind the dam annually, equal to about 30,000 dump truck loads per day. Be aware that your odometer may not register exactly the same mileage listed here.
[38] A common misconception is that the environmentalists were given a choice between damming Echo Park and damming Glen Canyon, but the USBR "had always planned to build a dam at Glen Canyon, regardless of the outcome of the Echo Park debate". To delay having to use the spillways, the USBR installed plywood flashboards (later replaced by steel) atop the gates to increase the lake level. It’s about protecting what sustains us. Mile 50.1, Hole-in-the-Rock Arch:
After the near disaster in 1983, the USBR has maintained a minimum of 2.4 million acre feet (3.0 km3) of flood-storage space in Lake Powell at the beginning of each year, to guard against unanticipated high runoff.
Construction of this passageway was very difficult. We decide to call it Glen Canyon. The grass was later planted to prevent the dirt from getting blown away – but also provides a mild cooling effect through evapotranspiration, reducing temperatures inside the power plant. [9] It became "a catalyst for the modern environmental movement,"[10] and was one of the last dams of its size to be built in the United States. [90] Even this additional capacity was exhausted; discharges through the left spillway reached 32,000 cubic feet per second (910 m3/s), and the right spillway was opened to 15,000 cubic feet per second (420 m3/s). (928) 608-6200 [27] In 1963, Arizona's congressional delegation proposed these dams as part of the Central Arizona Project to accomplish these goals. [44] The Colorado River flowed gently across the bottom of the canyon, in sharp contrast to the roaring rapids upstream in Cataract Canyon and downstream in the Grand Canyon. [85], The Bureau of Reclamation projected that once Lake Powell filled, the total bank storage would stabilize at approximately 6 million acre feet (7.4 km3), and henceforth would fluctuate depending on water levels in the reservoir.
[85] According to USBR data for water year 2015 (a year when Lake Powell did not experience a significant overall gain or loss in volume), Lake Powell lost a total of 368,000 acre feet (0.454 km3) to evaporation and only 8,000 acre feet (0.0099 km3) to leakage. Decades later, miners of the Hoskaninni Mining Company carved steps onto the same path used by the Mormon pioneers. : 720-0026-LP ® FOR OUTDOOR USE ONLY PLEASE CONTACT 1-800-913-8999 FOR ASSISTANCE DO NOT RETURN TO … [120] However, the foundation rock at Glen Canyon consists of porous sandstone prone to spalling, in contrast to the stronger granite at the Hoover Dam site, forcing the Glen Canyon design to follow more conservative lines by greatly thickening the abutments, thus increasing the surface area through which the weight of dam and reservoir would be transmitted to the rock and relieving the pressure per square inch on the highly breakable cliffs. "[45] In addition to its variegated rock formations, Glen Canyon supported a rich riparian zone habitat on the numerous low river terraces formed by the Colorado River, with as many as 316 bird species,[46] 79 plant species and 34 kinds of mammals. [155][156], Crews working in the Grand Canyon after the 1996 experiment found that the offensive vegetation had not been carried away as previously thought – only buried – and had mostly recovered within six months. [5], Because of fluctuating demands on the electrical grid, the dam release into the Colorado River rises and falls dramatically on a daily basis. [13] Flooding, and the river's enormous silt or sediment load, created problems for settlements in the Lower Colorado River Valley and navigation on the lower portion of the river. However, even as construction began on the other the dams, the USBR was faced with more controversy; the "David and Goliath" drama of the Echo Park debate had shifted the American public's perception on big government projects and their environmental consequences.
Today, Glen Canyon and Lake Powell are managed by the U.S. Department of the Interior within Glen Canyon National Recreation Area.
They discovered a petroglyph in the upper part of the canyon depicting the appearance of the Crab Nebula in 1054. [68], —Russell Martin, A Story That Stands Like A Dam (1990)[69], With the Colorado River safely diverted around the canyon, construction could begin on the actual concrete arch dam. Each generator is driven by a 254,000 horsepower vertical-axis Francis turbine. “Glen Canyon died in 1963,” wrote the renowned conservationist David Brower, who founded Friends of the Earth. Glen Canyon Stainless Steel Gas Grill. Water is used so intensively in the United States now that it is a rare year indeed when any of the Colorado River actually reaches the sea. This is a large, solid sandstone amphitheater. [20] Possible locations for this dam were debated for years, and in fact the Bureau of Reclamation's first study for a dam at Glen Canyon was made in 1924, in addition to studies for locations at Black and Boulder Canyons lower on the Colorado, below Grand Canyon. [54][63] The right tunnel would be used for carrying the Colorado's normal flow around the dam site, while the left tunnel, 33 feet (10 m) above the water, would only be used during floods. The Sierra Club lost its IRS tax-exempt status a day after the advertisement was released; ostensibly, this was due to its disruptive political activities. The geologic formations of the Colorado Plateau also affect vegetation communities by forming different soils and constraining water flow.
Water managers and utilities state that the dam is a major source of renewable energy and provides a vital defense against severe droughts. About 100 million US tons (90,700,000 metric tons) of sediment are trapped behind the dam annually, equal to about 30,000 dump truck loads per day. Be aware that your odometer may not register exactly the same mileage listed here.
[38] A common misconception is that the environmentalists were given a choice between damming Echo Park and damming Glen Canyon, but the USBR "had always planned to build a dam at Glen Canyon, regardless of the outcome of the Echo Park debate". To delay having to use the spillways, the USBR installed plywood flashboards (later replaced by steel) atop the gates to increase the lake level. It’s about protecting what sustains us. Mile 50.1, Hole-in-the-Rock Arch:
After the near disaster in 1983, the USBR has maintained a minimum of 2.4 million acre feet (3.0 km3) of flood-storage space in Lake Powell at the beginning of each year, to guard against unanticipated high runoff.
Construction of this passageway was very difficult. We decide to call it Glen Canyon. The grass was later planted to prevent the dirt from getting blown away – but also provides a mild cooling effect through evapotranspiration, reducing temperatures inside the power plant. [9] It became "a catalyst for the modern environmental movement,"[10] and was one of the last dams of its size to be built in the United States. [90] Even this additional capacity was exhausted; discharges through the left spillway reached 32,000 cubic feet per second (910 m3/s), and the right spillway was opened to 15,000 cubic feet per second (420 m3/s). (928) 608-6200 [27] In 1963, Arizona's congressional delegation proposed these dams as part of the Central Arizona Project to accomplish these goals. [44] The Colorado River flowed gently across the bottom of the canyon, in sharp contrast to the roaring rapids upstream in Cataract Canyon and downstream in the Grand Canyon. [85], The Bureau of Reclamation projected that once Lake Powell filled, the total bank storage would stabilize at approximately 6 million acre feet (7.4 km3), and henceforth would fluctuate depending on water levels in the reservoir.
[163], Because most of the lake is surrounded by steep sandstone walls, access is limited to developed marinas. [81], It took more than 17 years for Lake Powell to finally reach its full elevation of 3,700 feet (1,100 m) above sea level,[82] which it crossed on June 22, 1980. Sudden heavy rains, especially in summer months may make this road impassable. When the gates of the dam were closed in 1963, the resulting reductions in river flow effectively dried up the Colorado River Delta, the large estuary formed by the Colorado River at the Gulf of California (Sea of Cortez) in Mexico. The spillway was closed down for inspections and workers discovered that the flow of water was causing cavitation – the explosive collapse of vacuum pockets in water moving at high speed – which was damaging the concrete lining and eroding the rock spillway tunnels from the upper ends of the diversion tunnels, which connect to the bottom of the reservoir. In order to maintain hydropower generation at both Glen Canyon and Hoover Dams, the lakes must be kept at approximately the same level. The floods that once scoured the river each year are now contained behind the dam except in extraordinary cases such as 1983–84; the lack of floods has promoted vegetation encroachment which not only has considerably changed the riparian zone environment but has created problems for tourism, as hikers and boaters often cannot find good spots to camp due to overgrowth. The contract for building the bridge was awarded to Peter Kiewit Sons and the Judson Pacific Murphy Co. for $4 million and construction began in late 1956, reaching completion on August 11, 1957.
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