Accession Number:

ADA199746

Title:

St. Paul Harbor Breakwater Stability Study, St. Paul, Alaska. Hydraulic Model Investigation

Descriptive Note:

Final rept. May-Dec 1987

Corporate Author:

COASTAL ENGINEERING RESEARCH CENTER VICKSBURG MS

Personal Author(s):

Report Date:

1988-09-01

Pagination or Media Count:

56.0

Abstract:

A hydraulic model investigation of a proposed breakwater extension for St. Paul Harbor, St. Paul, Alaska, was conducted at a geometrically undistorted scale of 138.5, model to prototype. Tests were conducted for a typical cross section at the -25 ft mllw contour. Data collected included wave runup, rundown, overtopping rate, and displacement of armor stones. Maximum breaking wave conditions were used for prototype wave periods of 11, 14, and 16 sec. Breakwater cross sections tested were a the proposed design with a prototype crest elevation of 37.0 ft mllw and a sea-side slope of 1V2, 5H and b revisions to the proposed design with crest elevations of 30.0 ft mllw and 32.0 ft mllw was determined to be the most economical structure that provided satisfactory stability and overtopping rates.

Subject Categories:

  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE