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Decisionmaking for Dredggedg Material Management
Management of dredged material produced in coastal environments is greatly complicated by the presence of chemical contaminants in the material. The kinds and quantities of contaminants...

Sand Bypass System at Oceanside, California
This paper describes the design and development of an experimental sand bypassing and channel maintenance system using jet pumps and fluidizers. The system was developed as a possible...

Coastal Dunes for Protection and Sand Resources
Massive mining of dune sand on the north coast of Puerto Rico has impaired the natural ability of the dunes to protect the coast from high waves and long-term erosion. This paper presents...

Stabilization of West Coast Sand Dunes
Control of dune activity and the introduction of European beachgrass have generated far-reaching effects on the West Coast landscape. Between 1900 and 1935, a series of small sand stabilization...

Foredune Management on a Developed Shoreline: Nedonna Beach, Oregon
Nedonna Beach and Rockaway Beach are adjoining oceanfront communities with foredunes that were developed before state policies went into effect. The foredunes in these two communities...

Beach Replenishment: The National Solution?
The records of more than 90 replenished beaches and more than 200 sand-pumping operations on East Coast barrier island shorelines, while fragmentary, reveal a wide range of experiences,...

Beach Stabilization Design
There is a need for aesthetically pleasing and environmentally satisfactory solutions for protecting, renovating and restoring eroding semi-protected coastal beaches such as those found...

Concrete Armor Mats: Large-Scale Wave Tank Tests Wave Stability Tests
Concrete mats provide an alternative to the more conventional shoreline stabilization techniques. Material requirements are low, placement techniques are straightforward and they tend...

Parameters Controlling the Success of Dune Revegetation at King Salmon, California
An eroded 9. 3 ha (23 acre) sand spit was restored through jetty construction and fill (using dredge spoils) by the Corps of Engineers at King Salmon on Humboldt Bay, California. An experimental...

REMOTS?: Reconnaissance of Benthic Environments
REMOTS(REGISTERED TRADEMARK) technology, a combination of sediment-profile photography and computer image analysis, was developed to address shortcomings in traditional benthic sampling...

Erosion and ErosionControl of a Silt-Muddy Beach
In China, many large and middle rivers such as Yellow River, Yangtze River, Pearl River, Liaohe River carry a large amount of fine sand into the sea, this results in extensive silt-muddy...

Beach Preservation by Means of Offshore Submerged Mound of Dredged Materials
The beach - sediment - dispersion- offshore or alongshore under the effect of waves and wave induced currents, and inland by wind action may cause a net deficit in sediment budget which...

Evaluation of Sand-Filled Containers for Beach Erosion Control: an Update of the Technology
The use of large, sand-filled geotextile containers for coastal erosion protection has increased along Florida's ocean shorelines over the past five years. Technological advances...

A Comparison of California's Coastal Programs
California is the only state that has two distinct coastal management programs for two different geographic segments of the state's coastal zone, with each program administered...

Evaluation of Backshore Protection Techniques
The study site is Bethune Beach on the east coast of Florida in southern Volusia County which is experiencing severe and continued erosion problems. This shoreline erosion has become critical...

Nantucket's Broad Creek Opening
On September 20-21, 1961 a severe coastal storm, the remnant of hurricane Esther, formed a 1,200 foot wide, 20 foot deep opening in a barrier beach (Smith's Point at Broad...

Territorial Sea Management by the State of Oregon
The institutional capability of the State of Oregon to manage the territorial sea under its jurisdiction recently was examined by the authors. Oil and gas development, marine mineral mining,...

Management Responses to Technical Uncertainty
Recent attention to management and regulation of contaminated waste materials has served to heighten awareness of the role of technical uncertainty in regulatory decisionmaking. Two distinct,...

The ARC Reefs: Designed Artificial Reef Systems
Results of laboratory tests and preliminary results of field tests indicate materials and designs incorporated in The American Reef Corporation (ARC) designed artificial reef structures...

Oil and Krill: From Lab to Nature
Bioassay tests were conducted on Arctic krill, the euphausiid Thysanoessa raschii, using water-soluble fractions of Prudhoe Bay, Alaska crude oil. Experimental results indicated that larval...

 

 

 

 

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