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...
Mitigation Banking?A Balance of Interests
Mitigation projects are generally conducted on an independent basis. Each time a prospective developer applies for a 404 permit to fill coastal wetlands, he must submit to a lengthy mitigation...
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...
Coastal Flood Control Facility Design Parameters
The development of design parameters for a storm runoff detention facility located on lowlands adjacent to an estuary and discharging into the tidal zone are discussed. The parameters...
Methods for Developong a Management Plan for a Small Tidal Inlet: Mecox Inlet, Long Island, New York
Few management studies have examined small ephemeral tidal inlets. The magnitude of short-term shoreline changes associated with some ephemeral inlets makes desirable the development of...
Civic Solution: Lake Forest Shoreline Restoration
Recognizing the need to protect its public shoreline against erosion and to restore the area for optimum public recreational use, the City of Lake Forest, Illinois, appointed a 23-member...
Assessment of Beach Nourishment Methodoliogies
Although artificial beach nourishment has become a common practice for mitigating beach erosion in the U. S. , it lacks clear rationales for achieving optimum benefits. Four recent large-volume...
Nearshore Sand Sources for American Samoa: An Alternative to Using Beach Sand
Using a combination of geophysical techniques, in situ observations, and sampling by scuba divers, we investigated along the south shore of Tutuila Island, American Samoa, for nearshore...
Beach Restoration at Malaga Urban Area: Pedregalejo Case Study
The existence of a beach is a primary factor for the development of the adjacent urban areas. The present paper deals with the restoration project of Pedregalejo Beach (Malaga-Spain) and...
Sand Rights, a Legal System to Protect the Shores of the Sea
The legal system of water rights in California is highly developed. So far, however, it has failed to recognize in any comprehensive fashion the importance of the sand which is transported...
Chemical Effects on Clay Hydraulic Conductivity
Hydraulic conductivity and its susceptibility to changes with time or exposure to chemicals are major factors in selection of clay for use in waste containment barriers. Available concepts...
Assessment of Pore Fluid Effects Using Flexible Wall and Consolidation Permeameters
Hydraulic conductivity tests were conducted on compacted soil specimens prepared at activities of 0. 36, 0. 60, 1. 00 and 1. 39 at a fine fraction of 25 percent. Na-montmorillonite, Georgia...
Plastic Concrete Cutoff Walls
The studies revealed that plastic concrete can be prepared having a coefficient of hydraulic conductivity that is less than 1 multiplied by 10** minus **7 cm/sec. The shear strength of...
Permeability of Compacted Clay Liners in Laboratory Scale Models
Experiments conducted in flexible wall permeameters have shown that the permeability of a soil sample is dependent on the size of the specimen tested. The permeability was found to decrease...
Neyrtec Automatic Equipment for Irrigation Canals
The French Company ALSTHOM has developed a line of simple equipment for automatic level control and constant discharge control in canal irrigation systems. The paper includes a description...
Controlled-leak Methods for Water Level Control
The controlled-leak methods are a group of similar techniques for controlling upstream water levels, downstream water levels, or offtake canal discharges. They require no electrical power...
Automated Water Control in Southern Alberta
The distributed control system for water delivery that has evolved in Alberta, Canada is described including the type of hardware used and the general operating philosophy. Of importance...
Bival System for Downstream Control
The BIVAL system of canal regulation guarantees that the maximum discharge can be delivered at any time, as for downstream control systems and, moreover, it minimizes the canal dyking...
Canal Automation Using the Electronic Filter Level Offset (EL-FLO) Method
Beginning in 1969, the Bureau of Reclamation began testing and refining an electronic filter level offset (EL-FLO) control system for canal automation. The control system uses a proportional...
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