Accession Number : ADA584034


Title :   Erosion Control and Environment Restoration Plan Development, Matagorda County, Texas. Phase 2. Preliminary Design


Corporate Author : ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB


Personal Author(s) : Rosati, III, James ; Frey, Ashley E ; Thomas, Robert C


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a584034.pdf


Report Date : Aug 2013


Pagination or Media Count : 182


Abstract : A two-part study was conducted to identify structural methods to reduce beach erosion in Matagorda County at Sargent Beach and along Matagorda Peninsula east of the Mouth of the Colorado River (MCR), Texas. Phase 1 (Thomas and Dunkin 2012) investigated the coastal processes of the region and introduced several structural alternatives to reduce erosion at both locations. Preferred alternatives included a groin field with beach fill east of MCR and segmented breakwaters to protect Sargent Beach. This report (Phase 2) further details coastal processes with a short-term, recent sediment budget, describes recent studies, provides higher resolution numerical modeling, and includes preliminary design of the selected alternatives. Numerical models were applied to evaluate structure performance and inform design. GenCade calibration was updated based on model improvements and additional data. A Coastal Modeling System (CMS) numerical model was developed and validated against water level data.


Descriptors :   *BEACH EROSION , *SEDIMENT TRANSPORT , BREAKWATERS , CALIBRATION , CURRENTS , MORPHOLOGY , NUMERICAL METHODS AND PROCEDURES , PENINSULAS , SEA LEVEL , TEXAS , TIDES , WATER WAVES


Subject Categories : Geology, Geochemistry and Mineralogy
      Hydrology, Limnology and Potamology


Distribution Statement : APPROVED FOR PUBLIC RELEASE