Important Aspects of Annual Energy Calculation Techniques for Low Head Hydro Power Plants
Annual energy calculations are frequently used to optimize design parameters at a turbine site and to compare energy production based on equipment offers from various suppliers. In this...
Underwater Tunnel Inspection by Virginia Power Using a Submersible Robot
The Bath County Pumped Storage Station, jointly owned by Virginia Power and Allegheny Power systems and operated by Virginia Power, has three large tunnels linking the upper and lower...
Tunneling through an Existing Concrete Masonry Dam
The Gregory B. Jarvis Hydroelectric Project is located in Upper New York State on the West Canada Creek. Existing facilities include a non-overflow concrete gravity dam, 65 feet long and...
Cofferdams: An Integral Part of Small Hydro Design
Cofferdam construction costs can be a major factor in the viability of a small hydro development. For this reason, cost-effective design and construction are critical. A cost-effective...
Flashboard Alternatives Including Rubber Dams
This paper reviews some common flashboard methods used in the northeastern part of the U.S., and discusses the advantages and disadvantages of each type. The inflatable rubber dam is presented...
FERC's Experience in Analyzing Cumulative Impacts
Since the mid-1980's, the Federal Energy Regulatory Commission (Commission) has assessed cumulative impacts associated with developing proposed hydropower projects. A brief...
Vibration Problems of Penstock Piping for a Vertical Tubular Hydraulic Turbine
Excessive vibration amplitudes were experienced in the vertical gated tubular units at the Great Falls Hydroelectric Project located in the City of Paterson, New Jersey. Vibration amplitude...
Planning and Operation of Hydropower Development on a Navigation System, a Case Study
This paper examines the steps taken to optimally develop the hydropower plant at Lock and Dam No. 13 on the Arkansas River as part of an existing multiple use system. The specific items...
Turnkey Hydropower at St. Cloud
The St. Cloud Hydroelectric Project is located at an existing dam on the Mississippi River in St. Cloud, Minnesota. The project consists of a two-gated spillway and an 8.6-megawatt powerhouse...
Paradise River, a Challenging Small Hydro Development
The frequent assumption that small hydro developments are simple is not always borne out in practice. A case in point is the Paradise River Development in Newfoundland, Canada. This paper...
Harnessing the Snake: A Construction Viewpoint
The Gem State Hydroelectric Project, five miles south of Idaho Falls, Idaho on the Snake River, consists of a 900-foot-long, 40-foot-high dam; approximately four miles of earthend dikes;...
Preventive Maintenance: Fixing What Ain't Broke
Municipalities are often caught in the cycle of built-neglect-rebuild. For bridges, the solution is preventive maintenance: keep the bridges clean and painted, and they'll...
SPIDA Method for Reinforced Concrete Pipe Design
The required supporting strength of buried pipe is affected by the total load that is imposed upon the pipe and the manner in which the pipe is supported by the surrounding soil. The installation...
Reliability Analysis of Water Distribution Systems
Prepared by the Task Committee on Risk and Reliability Analysis of Water Distribution Systems of the Committee on Probabilistic Approaches to Hydraulics of the Hydraulics Division of ASCE....
Avoiding and Resolving Disputes in Underground Construction
Successful Practices and Guidelines
A method of developing cooperative, problem-solving attitudes on projects through a basic risk sharing philosophy between owner and contractor is presented. Special contracting provisions...
Post-Tensioned Transportation
Post-tensioned highways are relatively new. U.S. 220 near Altoona, Pa. has the first major installation in the country. There two miles of pavement are continuous concrete panels, each...
Creative Application of Materials Engineering
Society's demand for an aesthetically pleasing and safe constructed environment, along with the construction industry's higher and higher costs, dictate that...
Affordable Housing and the Civil Engineer
The Joint Venture for Affordable Housing (JVAH) Demonstration. Program accomplished the goal and reduced the first time cost of housing by up to 30% through the use of innovative methods...
Getting the Most From Engineering Consultant
The Los Angeles County Transportation Commission ('LACTC') has embarked upon a 150 mile rail transit construction program within Los Angeles County. A program...
Specification as a Requirement for Hot Mix Asphalt
A brief description of the current national research programs that affect the development of specifications is included in this paper. Elements of the Strategic Highway Research Program...
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