Wave and Surge Action, Point Fermin Naval Supply Depot, San Pedro, California: Model Investigation
Abstract
The model study reported herein was conducted intermittently during the period April 1945 to April 1946 at the Waterways Experiment Station for the Bureau of Yards and Docks, Navy Department. The Bureau was considering the possibilities of constructing a Naval Supply Depot in San Pedro Bay immediately northeast of Point Fermin and east of the City of San Pedro, California. It was proposed that the bay area adjacent to the beach be filled by dredging and a marginal wharf provided on the east side of the fill. It was known from earlier prototype investigations and model studies* of wave and surge action in that vicinity that long- and short-period waves occurred in San Pedro Bay. It had been found that these waves made loading and unloading operations of ships moored at unprotected piers and wharfs very difficult and, at times, caused damage to ships and fender systems. In anticipation of similar difficulties at the proposed Naval Supply Depot, it was decided to perform prototype and model investigations of the proposed works and harbor area. The prototype wave investigation was carried out to determine the type, magnitude, and frequency of occurrence of the waves which exist in the problem area; the model study was performed to determine whether it would be hazardous to moor ships along the proposed supply depot wharf under wave conditions as established by the prototype investigation. Two plans: a comprehensive development and an initial development of the proposed depot were tested on an existing model of pertinent portions of San Pedro Bay. This model was of concrete construction with scale ratios of 1:60 vertically, and 1:300, horizontally.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1947
- Accession Number
- ADA637671