Accession Number:

ADA571167

Title:

Erosion Control and Environment Restoration Plan Development, Matagorda County, Texas. Phase 1: Preliminary Investigation

Descriptive Note:

Final rept.

Corporate Author:

ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB

Personal Author(s):

Report Date:

2012-07-01

Pagination or Media Count:

113.0

Abstract:

This report documents the investigation of coastal processes and development of conceptual alternatives to reduce beach erosion at two sites in Matagorda County. Sargent Beach has experienced the greatest erosion rates on the Texas Coast, prompting study into structural methods to protect beach habitat. Additionally, the three miles of beach to the east of the Mouth of the Colorado River is a candidate for structural stabilization. The proximity of the two project areas provided an opportunity to consider processes on a regional scale in an effort to improve regional shoreline stability and further understanding of regional processes. Sargent Beach is comprised of cohesive sediment overlain by a thin veneer of sand. It is located between an ephemeral inlet to the east and a flood relief inlet to the west. The region includes two major river diversion projects, an eight mile long revetment at Sargent Beach, and many other engineering modifications influencing transport. Because of the complex site, an investigation into coastal processes was conducted to determine alternative development. Understanding of physical processes developed during this investigation was applied to develop potential solutions to reduce erosion, including beach nourishment, groins, breakwaters, and installed bypassing systems.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Hydrology, Limnology and Potamology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE