Developing Findings of Fact for a Hazard Mitigation and Preparedness Plan for the City of Waldport/Alsea Bay Area, Lincoln County, Oregon
Marine erosion attributed to the effects of the 1983 El Nino resulted in the loss of the distal tip of Alsea Spit in 1985 enlarging Alsea Bay inlet by 300% and subjecting the City of Waldport...
Protection of Cape Hatteras Lighthouse
Historic Cape Hatteras Lighthouse has recently become threatened by shoreline erosion. Shore protection measures for the lighthouse are summarized and shoreline changes and erosion rates...
Ocean Erosion Control for the Private Sector
The paper describes some procedures of design and construction of riprap type protective structures to contain ocean erosion and to provide an end product that both gives protection and...
Little River: An Investigation of Coastal Environment
Little River is located about 6. 5 kilometres north of Comox on the east side of Vancouver Island. The last major flood in February of 1983 resulted in the river breaking through the beach...
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...
Coastal Zone Management Practices, Northwest Brittany, France
Over the entire coast of Brittany, three government programs have sponsored over 81. 9 million francs (6 ff equals US1, approx. ) of coastal-related programs since 1968. Projects vary...
Restoration of a Construction-Scarred Dune
The rehabilitation and extension of the north and south jetties at the entrance to Siuslaw River required the contractor to stockpile jetty stone in nearby surge piles in order to maintain...
Erosion Control Measures and Beach Restoration Plan at the Niigata West Coast
This paper first presents the process of erosion and the history of control measures at the Niigata west coast. The paper further discusses an epoch-making shore protection and beach restoration...
Combination of Cobble and Sill Controls Erosion
Two types of erosion controls that have had their own successes separately - cobble beach nourishment and a modular previous sill - were deployed in a successful combination to protect...
Erosion of the Slopes of Gold Tailings Dams
A study has been made of rates of erosion from the slopes of gold-residue dams in the South African Highveld region. Data is available for two years at this time and conclusions must therefore...
Engineering Aspects of Soil Erosion, Dispersive Clays and Loess
This collection of papers deals with selected engineering aspects of soil erosion, dispersive clays and loess. Two types of erosion are considered?surface and subsurface (piping)?with...
Pipelines for Flexible Deliveries
The use of pipelines facilitates flexible deliveries for projects and flexible distribution on the farm. Pipelines have the advantage relative to canals in that they do not have to follow...
Pipeline Types and Design Considerations
Pipelines are extensively used to upgrade irrigation delivery facilities. The advantages of a pipeline system include an improvement in water conservation and the ability to extend water...
Design of Semi-Closed Pipeline Systems
Semi-closed pipeline systems controlled by downstream activated float valves permit low pressure pipeline systems to communicate information from the outflow location back to the source...
Case Study?Closed Pipeline Systems
The paper discusses closed pipeline system and its automation, including variable pumping rates, sensing devices, automatic controls, pressure regulators, flow measuring devices, surge...
Case Studies?Semi-Closed Pipeline Systems
The paper discusses the title subject in terms of automated systems, flexible scheduling, and system components. Project locations include the Mahaweli Development Project, Sri Lanka;...
Case Study?Open Pipeline System, Coachella Valley Water District
A supervisory canal control system installation was started in 1966, seventeen years after start up, and a major upgrading was completed in 1983. The canal delivery system now has a central...
Yakima-Tieton Irrigation District Rehabilitation Program
The Yakima-Tieton Irrigation District obtained funding from the U. S. Bureau of Reclamation and the State of Washington to replace an open canal and lateral irrigation delivery system...
Hydraulic Design Limitations for Gravity Flexible (Non-Rigid) Plastic Pipes Flowing with a Free Water Surface
Hydraulic design limitations are necessary for gravity plastic pipes when designed for use as a sanitary sewer, flowing part full with a free water surface. The limitation for pipes designed...
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