Siphon Penstock Installations at Hydroelectric Projects: A Survey of Design, Construction and Operating Experience
There can be advantages to using siphon penstocks at small hydro projects, particularly those constructed at existing dams. One problem, however, is a lack of documentation of siphon penstock...
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;...
Foundation Engineering
Current Principles and Practices
The proceedings of the 1989 ASCE Foundation Engineering Congress (entitled Foundation Engineering: Current Principles and Practices) address advances in the state-of-practice and in research...
CAD Speeds Viaduct Replacement
Lack of an available detour around construction of a major viaduct spurred city officials in Reno, Nev. to build a bridge nearby to serve the purpose. Although funded separately, the permanent...
Glitches in Flitch Beam Design
Wiesenfeld proposes a set of design criteria for flitch beams. These beams, in which wood and steel sections are bolted together to act as a single structural unit, are currently covered...
Storing Sediment and Freeing Fish
When Mount St. Helens erupted in May 1980, it sent a river of pyroclastic ash and other debris into Washington's North Fork Toutle River Valley. The resulting debris pile...
Hot Mix Asphalt Utilization in Railway Trackbeds
Described herein are the rationales for, descriptions of and evaluations of hot-mix asphalt (HMA) trackbed rehabilitation and construction techniques recently utilized in various classes...
Liability Traps to Avoid
This presentation shows several problem situations and the rules of the game as played by the industry and the courts. It makes three basic assumptions. One, the Materials Engineer knows...
Waterpower '89
The 1980's have been characterized as an era of uncertainty for world energy including future demand for energy, fuel prices and availability, regulatory constraints, environmental...
Civil Engineering Guidelines for Planning and Designing Hydroelectric Developments
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...
Fast Track, Instant Track
There is a newly constructed railroad bridge over the Wilamette River in Portland, Oregon. The 499 ft. clear maritime channel allows the world's largest ships to navigate...
Segmental Tunnel Lining Meets `Buy American'
Segmental concrete tunnel lining is the other innovation proven during construction of the Washington Metropolitan Area Transit Authority (`wmata'). Although `wmata's'...
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...
Seismic Codes:Preparing for the Unknown
Few eastern communities follow seismic codes because few communities view earthquakes as a risk. Although California-sized quakes have hit Charleston, St. Louis, they've done...
Screaming Structures
As any designer of roller coasters will tell you, civil engineering principles put the thrills and screams into roller coasters. There are two basic differences between roller coaster...
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...
Contractability?Recent Concepts in Contracting
Owners are customizing project delivery systems by uniquely aligning service agreements and construction contracts. Seeking more productive ways to construct facilities, owners currently...
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