WorldCat Identities

Seabergh, William C.

Overview
Works: 54 works in 80 publications in 1 language and 371 library holdings
Roles: Author
Classifications: GB454.T5, 551.36
Publication Timeline
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Most widely held works by William C Seabergh
Physical model simulation of the hydraulics of Masonboro Inlet, North Carolina by Richard A Sager( Book )

4 editions published in 1977 in English and held by 84 WorldCat member libraries worldwide

This report is part of the General Investigation of Tidal Inlets 'Inlet Hydraulics Study.' The study involves the investigation of the tide- and wave-generated flow regime and water-level fluctuations in the vicinity of coastal inlets. Masonboro Inlet was selected as an inlet to be used in determining the usefulness and reliability of physical and mathematical models in predicting hydraulic characteristics of inlet/bay systems. This report presents results obtained from the physical model study. The Masonboro Inlet fixed-bed model, constructed to scales of 1:300 horizontally and 1:60 vertically, reproduced an area extending to the -45 ft contour in the Atlantic Ocean and to the nodal points in each interior channel. The wetlands were accurately reproduced near the inlet; but those areas farther bayward, being relatively flat, were reproduced schematically and artificially bent into the research flume to provide storage for the tidal prism. The model was equipped with appurtenances necessary for accurate reproduction and measurement of tides, tidal currents, waves, and other significant prototype phenomena. Model verification tests assured that the model hydraulic regimen was in satisfactory agreement with that of the prototype. Five velocity ranges with three stations at each range were verified in the model (readings were taken at three depths at each station); and seven tidal elevation gages in the ocean and bay were also verified
Comparison of numerical and physical hydraulic models, Masonboro Inlet, North Carolina : Appendix 1, fixed-bed hydraulic model results by Richard A Sager( Book )

4 editions published in 1977 in English and held by 56 WorldCat member libraries worldwide

This appendix discusses the verification, base tests, and predictive test of a fixed-bed hydraulic model of Masonboro Inlet, N.C., as part of the evaluation of the state-of-the-art inlet modeling techniques. It presents the data necessary for a comparison of results of the physical and numerical models discussed in the basic report. Further information concerning the physical fixed-bed model of which this report is a summary can be found in the reports 'Physical Model Simulation of the Hydraulics of Masonboro Inlet, N.C.' (in preparation), and 'Supplementary Tests of Masonboro Inlet Fixed-Bed Model' (in preparation)
Supplementary tests of Masonboro Inlet fixed-bed model : hydraulic model investigation by William C Seabergh( Book )

5 editions published in 1980 in English and held by 50 WorldCat member libraries worldwide

Improvements for Masonboro Inlet, North Carolina : hydraulic model investigation, final report by William C Seabergh( Book )

2 editions published in 1976 in English and held by 47 WorldCat member libraries worldwide

Comparison of numerical and physical hydraulic models, Masonboro Inlet, N.C. ; Appendix 1 : Fixed-bed hydraulic model results by Richard Allan Sager( Book )

2 editions published between 1977 and 1978 in English and held by 17 WorldCat member libraries worldwide

Los Angeles Harbor Pier 400 harbor resonance model study by William C Seabergh( Book )

2 editions published in 1995 in English and held by 15 WorldCat member libraries worldwide

The Los Angeles - Long Beach Harbors physical model for harbor resonance was used to investigate the effects of Stages 1 and 2 of the Pier 400 Project on long waves (periods 30 - 500 sec) at existing and proposed berth locations. Three long-period wave spectra were selected for use. They included two storm conditions: 1 February 1986 and the Martin Luther King Day Storm on 17 January 1988. They were representative of long waves from the west. An average condition wave spectrum was developed based on long-term wave information and was representative of long waves from the south. These spectra were used to program the wave generators and wave data were collected at 77 harbor gages. Stage 1 was initially constructed and tested. No significant wave amplifications were noted at the Pier 300 berths with the solid fill causeway joining Terminal Island and Pier 400. When a 243.84-m- (800-ft- ) wide gap was opened in the causeway at the end of the Pier 300 channel, some increases in amplification were noted at Pier 300 though overall energy was still relatively low. Most existing berth locations had similar changes for Stages 1 and 2, with decreases in wave amplifications most prevalent. Some increases in wave amplifications as a result of the proposed construction in the Port of Los Angeles were noted at about 4 to 5 percent of the existing berth locations in the 25- to 40-sec and 41- to 205-sec energy bands and 10 per. cent for the 206- to 519-sec energy bands
Physical model study of wave diffraction-refraction at an idealized inlet( Book )

1 edition published in 2002 in English and held by 4 WorldCat member libraries worldwide

Engineering assessment of hydrodynamics and jetty scour at Little River Inlet, North and South Carolina by Monica A Chasten( Book )

1 edition published in 1992 in English and held by 3 WorldCat member libraries worldwide

Little River Inlet is a shallow coastal inlet located on the Atlantic Ocean along the North Carolina South Carolina border. Construction by the US army Engineer District, Charleston (SAC) of a dual-jetty system at Little River Inlet began in March 1981 and was completed in July 1983. A detailed monitoring program conducted from 1979 through 1992 has documented the performance of the Little River Inlet project. A two-phase analysis of the monitoring data and navigation project was conducted by the Coastal Engineering Research Center (CERC). The objectives of the first phase analysis were to summarize beach and near shore response to the Little River Inlet navigation project and assist SAC in developing dredged material management plans (Chasten 1992). The second phase of analysis involved a reconnaissance-level review of the post-jetty thalweg evolution and stability, relative inlet hydrodynamics, and scour occurring at the jetty structures. This paper summarizes the second phase of the CERC study and performance of the Little River Inlet navigation project
Improvements for Masonboro Inlet, North Carolina : hydraulic model investigation by William C Seabergh( Book )

2 editions published in 1976 in English and held by 2 WorldCat member libraries worldwide

Monitoring Barnegat Inlet, New Jersey, south jetty realignment( )

1 edition published in 2003 in English and held by 2 WorldCat member libraries worldwide

Physical model study of wave diffraction-refraction at an idealized inlet( )

1 edition published in 2002 in English and held by 2 WorldCat member libraries worldwide

Jetty spur functional design at coastal inlets : effects on nearshore circulation and potential sediment movement by William C Seabergh( Book )

2 editions published in 2006 in English and held by 1 WorldCat member library worldwide

This Coastal and Hydraulics Engineering Technical Note (CHETN) discusses the effects of connected and detached spurs on sediment transport and circulation in the vicinity of a coastal inlet jetty. The influence of spur orientation on the magnitude and pathways of these processes is detailed based on observations in the field and comprehensive laboratory measurements. A companion technical note, CHETN-IV-61 (Seabergh and Krock 2003), discusses existing jetty spurs in the United States and presents initial Coastal Inlet Research Program (CIRP) physical model jetty spur results
Inner-bank erosion processes and solutions at coastal inlets by William C Seabergh( Book )

2 editions published in 2002 in English and held by 1 WorldCat member library worldwide

Progress in management of sediment bypassing at coastal inlets : natural bypassing, weir jetties, jetty spurs, and engineering aids in design by William C Seabergh( Book )

2 editions published in 2003 in English and held by 1 WorldCat member library worldwide

Maintenance of navigable channels at coastal inlets typically requires sediment bypassing to preserve integrity of the adjacent beaches. Artificial bypassing mimics or preserves the pathways of sediment in the littoral zone and harmonizes the requirement for deepening navigation channels within the context of the natural sediment-sharing system of inlets and beaches. A range of techniques can be applied to perform bypassing. Customary on-demand channel dredging is not always the best solution because sediment shoaling does not necessarily follow a predictable schedule, potentially compromising navigation reliability between allowable dredging windows. If sediment can be directed to a location other than the channel, planning of dredge operations may be optimized and less expensive equipment feasible. A weir jetty system is one such solution. This paper presents progress in understanding of sediment bypassing through analytical prediction and takes a lessons-learned approach to design and modification of weir jetty bypassing systems. Results from recent physical model studies of spur jetties are also discussed with regard to their control on the nearshore current at coastal inlets and how spurs can be designed to alter sediment bypassing
Weir jetties at coastal inlets by William C Seabergh( Book )

2 editions published in 2002 in English and held by 1 WorldCat member library worldwide

Inlet spits and maintenance of navigation channels by Nicholas C Kraus( Book )

2 editions published in 2002 in English and held by 1 WorldCat member library worldwide

Improvements for Murrells Inlet, South Carolina : hydraulic model investigation : final report by Frederick C Perry( )

1 edition published in 1978 in English and held by 0 WorldCat member libraries worldwide

Murrells Inlet, located 13 miles southwest of Myrtle Beach, South Carolina, is a natural channel through a sandy beachline that conducts tidal flows between the Atlantic Ocean and a well-mixed lagoon of ocean salinity which has no source of freshwater inflow other than local surface runoff. The inlet provides passage from the ocean to docking facilities for charter craft, commercial fishing vessels, and private boats. However, due to the influx of sand into the inlet, an environment of shallow shifting-sand shoals and breaking waves produces difficult and dangerous navigation conditions. A project for the improvement and stabilization of the inlet was authorized in November 1971. A model study was performed to aid in preconstruction planning and design of structural solutions to the problem of providing a stabilized channel of sufficient depth and width with provisions for sand bypassing
Improvements for Masonboro Inlet, North Carolina : hydraulic model investigation by William C Seabergh( )

2 editions published in 1976 in English and held by 0 WorldCat member libraries worldwide

 
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Alternative Names
Seabergh, W. C. (William C.)

Languages
English (39)