Avalon Transportation Wharf

by James W. Dunham, (F.ASCE), Chf.; Coastal Engr. Dept., Moffatt & Nichol, Engrs., Long Beach, CA,


Serial Information: Journal of the Waterways, Harbors and Coastal Engineering Division, 1971, Vol. 97, Issue 2, Pg. 371-384


Document Type: Journal Paper

Abstract: Removal of the old steamer pier in Avalon Bay, Santa Catalina Island, CA, and conversion of the entire bay to a small craft mooring area required the construction of a new transportation wharf on the seaward side of a bay-mouth mole for use only in calm seas. The deck of this wharf spans from the massive edge beam on the mole, over a quarrystone seawall, to a single row of piles along the A-stone toe, with grated openings to release storm wave energy. The unusual design problems posed by such construction are considered. Ship dockings under surge conditions damaged the initial timber-pile fender and rubber shock absorbers, indicating that ship response under the existing mooring-line restraints greatly exceeded design criteria. Modifications to the fendering and mooring system prevented further damage.

Subject Headings: Ports and harbors | Mooring | Breakwaters | Construction management | Bays | Ships | Islands | Piers | California

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