Comparison of Hydrodynamic Parameters for a Floating Breakwater
The U. S. Army Engineer Research and Development Center is in the process of developing a Rapidly Installed Breakwater System (RIBS) for use in Joint Logistics Over the Shore Operations...

Montioring and Modeling of Tandem Breakwater System at Hammond, IN
A tandem breakwater system was constructed in 1989-90 to provide protection for a large marina at Hammond, IN, at the south end of Lake Michigan. A five year monitoring program (1993-98),...

Design and Construction of the Pier J Breakwaters at the Port of Long Beach, California
Several different alternatives to mitigate surge activity were investigated. The most acceptable solution was a pair of new breakwaters that altered the basin geometry to change the basin...

Construction Factors and Monitoring Methods Relating to the Performance of Ventura Breakwater Core Loc Repair
In 1999 the Los Angeles District of the U.S. Army Corps of Engineers (USACE) repaired the north Ventura breakwater head. The head was rebuilt using 2-ton underlayer stone armored with...

St. George Habor—Berm Breakwater Construction Considerations
During the period 1984-1987 three berm breakwaters with a total length of approximately 800 meters were constructed at St. George Harbor on St. George Island in the Pribil of Chain of...

Application of Multibeam Echo Sounding and Side Scan Sonar for Mapping of Shoreline Protection Revetments
The use of multibeam survey methodology coupled with high precision positioning systems for the mapping of shoreline protection features and the adjacent offshore areas allows development...

Predicted Service Life of Armor Stone: A Case History
Laboratory testing for determination of true rock quality in terms of expected performance is not clear-cut, may be misleading, and requires extensive interpretation by an expert. This...

Strength from Within
After decades of being continuously struck by rockfalls and wayward vehicles, Knapps Hill Tunnel—a highway structure built in 1936 and located on state Route 97A in central Washington...

An Arbor for Art
The new $50-million, 153,000 sq ft (14,200 m²) building for the Modern Art Museum of Fort Worth will provide the museum with more than five times its current gallery space. The design...

Repeat Performance
Working with a budget of $10 million, engineers designing a new high-rise residential structure in New York City had to find creative ways to control costs. One budget-saving idea was...

Big Idea
The reconstruction of the Big I—the intersection of interstate routes 25 and 40 in Albuquerque that was named for its appearance from the sky—was likely to disrupt commuters and interstate...

Effect of Aluminum Compression on ACSR Conductor Sags at High Operating Temperatures
Deregulation and restructuring are sweeping the electric utility industry in the United States. As a result, many utility engineers are analyzing, re-rating, and upgrading their most critical...

The Inside Story
A full-scale renovation of the interior of Oklahoma City's Civic Center Music Hall required shaving much of the depth from two trusses under load conditions, installing new...

After the Flood
In June 2001, Tropical Storm Allison struck Texas, subjecting the Houston area to one of the most destructive floods in U.S. history. As part of the recovery effort, the Federal Emergency...

Changing Channels
When the strict design parameters of a correctional facility in remote Pennsylvania meant blocking a headwater stream, a team of environmental engineers rerouted the waterway 400 ft (122...

Geotechnical Aspects of Beach Restoration
Large-scale beach restoration undertaken by the U.S. Army Corps of Engineers in Florida requires millions of cubic yards of beach quality sand. Exploration for these sand resources starts...

Rhythm of Beachrock Levels in Contrasting Plate Settings: Rifting Red Sea and North American-Caribbean Plates
Sequences of beachrocks have been compared from the northern Red Sea, the North American plate (north shore of Puerto Rico), and an island of the Caribbean plate. In all these areas the...

Characteristics and Implications of Relict Carbonate Paleoshorelines
Throughout the Florida-Bahamas region, the accumulation of coastal carbonate deposits, excepting the present highstand, appears to be episodic. Back through time these deposits provide...

Weighing the Options
A unique sludge pipeline replacement project in Colorado gave the engineers and the owner an opportunity to compare the merits of three different project delivery methods....

Settling Down
Engineers in Florida will prepare the sandy foundation of a future power plant by preloading it with sand for as long as a year....

 

 

 

 

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