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: A two-dimensional physical model investigation was conducted at scales of 1:13 and 1:19 (model to prototype) to provide input for the design optimization of a seawall proposed for long-term storm protection at Virginia Beach. This was one of a number of tasks conducted in support of the detailed design of a beach erosion control and hurricane protection project at Virginia Beach. The 2-D tests were conducted to acquire data on the expected rate of overtopping for two design storm types (hurricane and northeaster) at selected still-water levels, determine a stable stone size for a proposed fronting riprap berm, and to determine the distribution of wave-induced pressures on the face of the seawall. As a result of the 2-D tests, a stable stone size was determined for the proposed fronting berm, and overtopping rates were measured. An improved seawall design was recommended and showed a significant reduction of overtopping rates over the initial seawall design. Wave-induced shock pressures were recorded on the face of the seawall; however, durations were small and probably insignificant. Measured surge pressure magnitudes were relatively consistent and durations were significant. No significant negative pressures were recorded.

Coastal engineering studies in support of Virginia Beach, Virginia, Beach Erosion Control and Hurricane Protection Project : report 1, physical model tests of irregular wave overtopping and pressure measurements / by Martha S. Heimbaugh ... [et al.].