Calendar: Bridges 2015
Featured bridges are: Stewart Canyon Bridge (Banff National Park, Alberta, Canada); Old Trails Bridge (Topock, Arizona); Joso Bridge (Lyons Ferry, Washington); Forth Bridge (Queensferry,...
Calendar: Bridges 2007
Featured bridges are: Glen Canyon Bridge (AZ); Pont de Pierre (Bordeaux, France); Hernando DeSoto Bridge (TN); Ponte Vasco da Gama (Lisbon, Portugal); Detroit-Superior Bridge (OH); Ohnaruto...
Problem and Technical Solutions: The Seven Oaks Dam, Physical Elements of the Seven Oaks Dam Feature
Seven Oaks Dam is located in the upper Santa Ana Canyon approximately 1 mile from the canyon mouth. The site is 8 miles northeast of the city of Redlands in San Bernardino County on the...
Spanning the Grand Canyon
Replacement of a bridge across the Grand Canyon challenged engineers to create a design in keeping with the area's beauty, history and protected environment. Their answer...
Debris Flows in Grand Canyon National Park, Arizona: Magnitude, Frequency and Effects on the Colorado River
Debris flows are recurrent sediment-transport processes in 525 tributaries of the Colorado River in Grand Canyon. Arizona. Initiated by slope failures in bedrock and (or) colluvium during...
Keller Canyon Fills a Need
Opening a new landfill site in California can be an onerous task. Any owner willing to try must work with the state's stringent environmental legislation, profusion of solid...
Glen Canyon Hydropower vs. The Grand Canyon (The Conflict of Basic Values)
Competing for the scarce resources of our future is the byword of the 1990's. For the last century and more, the United States has been in the position of always having more...
Assessment of Changes at Glen Canyon Dam
This paper describes the complexity associated with the assessment of financial impacts of proposed and actual short-term restrictions at Glen Canyon Dam. The reasons for these restrictions...
Dam Removal Methods, Elwha River, Washington
Preparation of an Environmental Impact Statement (FERC, 1991) for licence applications for the Elwha and Glines Canyon hydroelectric projects on the Elwha River, Washington, included evaluation...
Design and Performance of Diversion Gates at Peace Canyon Dam
During construction of Peace Canyon Dam, river diversion was accomplished using a combination of cofferdams and temporary diversion conduits through the partially completed dam. Inlet...
Devil Canyon Second Afterbay
This project is located in the City of San Bernardino (Southern California). The addition of a second afterbay for the Devil Canyon Powerplant has been in the planning stages since October,...
Hydraulic Features of Canyon Lake Hydropower Plant
The original hydraulic features of the Canyon Lake dam were well adapted to the addition of hydropower. Design, construction and anticipated operational details of the added hydropower...
Devil Canyon Powerplant Enlargement Project: Electrical Design Problems and Challenges
Devil Canyon Powerplant is a hydroelectric plant facility of the huge California Water Project. This powerplant is located 5 miles north of San Bernandino. It is currently being enlarged...
Devil Canyon Powerplant Enlargement
This paper presents the design and construction aspects of the enlargement of the existing Devil Canyon Powerplant from 120 MW to 280 MW. Subjects covered include site geology, powerhouse...
Glen Canyon Environmental Studies Resource Response Analysis
The primary objective of the Glen Canyon Environmental Studies is to determine how the resources of the Grand Canyon respond to the operations of Glen Canyon Dam. Two levels of analysis...
Operation of Glen Canyon Dam during 1983 and 1984 and the Repairs of Glen Canyon Spillways (
The gates at Glen Canyon Dam were closed in the spring of 1963 and the reservoir did not fill until the summer of 1980. The spillways were tested in 1980 with only slight evidence of operational...
Fishing the Four-Lane
Recent changes in one Montana canyon have shown that even highways and freshwater fish can happily coexist with the proper planning. Twenty years ago, the Montana Department of Highways...
Dust Control at Canyon Ferry
Since initial filling of Canyon Ferry Lake in 1955, wind blown, fine grained material from exposed flats at the upper end of the lake became a problem of increasing concern. Average deposition...
Glen Canyon Dam's Quick Fix
When the spiullways at Glen Canyon Dam were severely damaged from unexpected flooding in 1983, the Bureau of Reclamation had just 10 months to repair the tunnel spillway lining and build...
Grand Canyon Water Line by Directional Drilling
The South Rim Village at Grand Canyon National Park obtains its water supply from a point called Roaring Springs which is located approximately 15 miles across the Canyon on the North...
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