Accession Number : ADA304942

Title :   Newport North Marina, Yaquina Bay, Oregon Design for Wave Protection. Coastal Model Investigation.

Descriptive Note : Final rept.,

Corporate Author : COASTAL ENGINEERING RESEARCH CENTER VICKSBURG MS

Personal Author(s) : Bottin, Robert R., Jr. ; Briggs, Michael J.

PDF Url : ADA304942

Report Date : JAN 1996

Pagination or Media Count : 103

Abstract : A 1:60 scale (undistorted) three-dimensional hydraulic model was used to investigate the design of proposed breakwater modifications at Newport North Marina, Yaquina Bay, OR, with respect to wave and current conditions in the harbor and sediment patterns at the site. The model reproduced the existing marina and a portion of the Yaquina River from west of the U.S. Highway 101 bridge upstream. Proposed improvements consisted of breakwater modifications at the marina entrance. A 12.2-m-long (40-ft-long) unidirectional, spectral wave generator, a water circulation system, an automated data acquisition and control system, and a crushed coal tracer material were used in model operation. Test results led to the following conclusions: (a) Existing conditions are characterized by rough and turbulent wave conditions during periods of storm wave attack. Wave heights in excess of 0.9 m (3 ft) occurred in the marina mooring areas. (b) Preliminary tests for the three originally proposed design alternatives (Plans 1-3) indicated that none of the test plans would meet the original 0.3-m (1-ft) criterion in the marina mooring area. (MM)

Descriptors :   *OCEAN WAVES, *OCEAN CURRENTS, *BREAKWATERS, *BAYS, COASTAL REGIONS, AUTOMATION, TURBULENCE, STORMS, DATA ACQUISITION, RIVERS, PACIFIC OCEAN, COASTAL ENGINEERING, CIRCULATION, SEDIMENTS, HEIGHT, HARBORS, HYDRAULIC MODELS, MOORING, OREGON, ESTUARIES.

Subject Categories : Physical and Dynamic Oceanography
      Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE