Plastic Filter Fabrics Have Bright Future
There are thousands of existing installations using filter fabrics in North America and additional thousands in Europe, most built in the past 10 years. The momentum is gathering. Filter...
Gabions, Perforated Pipe and Gravel Serve as Fish Screens
A type of structure to prevent juvenile salmon from diverting to irrigation ditches has been developed on the Merced River in central California. It was built after cost considerations...
Innovative Design at Florida Bulkhead Reduces Material and Construction Costs
Remedial work to an existing bulkhead at a deep-water berth for Port Everglades, Florida, has been done with substantial savings through the application of innovative design concepts....
University of Idaho Barrel-Arch Roof Wins Outstanding Structural Engineering Award
The world's longest span wood structure now covers the football stadium at the Univ. of Idaho in Moscow, Idaho. The trussed arch consists of an upper and lower wood deck connected...
Polymer-Concrete Passes Toughest Test
Almost three years after a pour of polymer-concrete (PC), a full patch of a hole in New York City's Major Deegan Expressway shows no cracks and is adhering well to the original...
Impermeable Asphaltic Concrete Pond Liner
An impermeable dense hydraulic asphaltic concrete solar evaporation pond liner was developed by the Southern California Edison Co. for the Mohave Generating Station, Clark Co., Nevada....
Water Harvesting�� Modern Application of an Ancient Method
Water harvesting�The process of collecting natural precipitation from prepared watersheds for beneficial use was the topic of a 3-day symposium held in Phoenix, Arizona, in March 1974....
Plastic Tower Solves Radar Interference
A new nonmetallic tower section has been designed to eliminate major rador interference problems caused by a steel Radar Microwave Link tower. The replacement section is composed of a...
Dredging and Its Environmental Effects
Proceedings of the Specialty Conference on Dredging and its Environmental Effects, held in Mobile, Alabama, January 26-28, 1976. Sponsored by the Task Committee on Dredging and its Environmental...
Pipeline Bridge Uses Timber Arches
An arch bridge is utilized for the purpose of providing a river crossing for a water supply pipe. Tidal influence, an unfavorable riverbed situation complicated by estuarial and other...
How Concerned Should Civil Engineers be with Fire Protection�
During the last five years, there has been increasing concern and interest in fire safety in buildings, especially tall buildings. This has resulted in new federal legislation, a new General...
New Method Dewaters Dredged Material, Cuts Lagooning Space
Disposal of the millions of cubic yards of dredged material produced each year in the maintenance of the nation's waterways is becoming a serious problem. Traditional methods...
The Floating Cover: Best Way to Cover a Finished-Water Reservoir�
With the increased attention being given to drinking-water quality in recent years, many states have been pressuring towns and cities to cover their open, finished-water reservoirs. Years...
Engineering Education: Can It be More Practical�
U.S. engineering schools were derailed after World War II by some well-meaning educators who decided future engineers should be patterned after physicists and aero-space scientists. Post-war...
News in Bridge Decks
This is the second of two articles on short span bridges. The first, in the July issue, described cost-cutting ideas in design. This article focuses on bridge decks: expansion joints,...
Salt Damaged Bridge Decks: Cathodic Helps
Cathodic protection of bridge decks against spalling caused by deicing salts has been demonstrated effective in decks already damaged. Construction of new decks may use other means to...
Bailey's Crossroads: A/E Liability Test
In March 1973, a 24-story reinforced concrete building under construction at Bailey's Crossroads, Va., partially collapsed causing a total collapse of an adjoining parking...
Largest and Lightest Fabric Roof to Date
A dome concept that could change roof design throughout the world is being used on the new Pontiac Metropolitan Stadium in Michigan. The roof is a cable restrained air supported fiberglass...
Proven Organic Coatings for Long Term Protection
Recent advances in coatings materials and their application make possible improved protection of structures in normal or agressive environments. Shopcoating and field application are compared....
Pipeline Design for Water and Wastewater
Return to search