A Case History of Port Mansfield Channel, Texas.

Abstract

This report presents a case history and analysis of Port Mansfield channel, an artificial, jettied inlet between the Gulf of Mexico and Laguna Madre, Texas. Deposition has occurred in the channel entrance since its opening. Seaward migration of the updrift beach and shoaling in the channel entrance indicate that sand is bypassing the jettied entrance. Short-term predictions of inlet stability using the O'Brien prism-area relationship, Escoffier's stability criteria, and the Bruun and Gerritsen ratio of tidal prism to the gross annual longshore transport rate, correctly predict the unstable nature of the channel. Tidal exchange volumes and velocities are not large enough to maintain the design cross-sectional area in the presence of the existing longshore transport.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1977
Accession Number
ADA042651

Entities

People

  • James M. Kieslich

Organizations

  • Coastal Engineering Research Center

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Civil Engineering
  • Coastal Engineering
  • Construction
  • Dredging
  • Engineering
  • Engineers
  • Equations
  • Erosion
  • Flood Control
  • Floods
  • Materials
  • Measurement
  • Sea Level Rise
  • Shores
  • Storm Surges
  • Test And Evaluation
  • Wave Power

Readers

  • Coastal Oceanography
  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering