Beach nourishment alternative assessment to constrain cross-shore and longshore sediment transport

Karasu S., Work P. A., UZLU E., Kankal M., YÜKSEK Ö.

APPLIED OCEAN RESEARCH, vol.59, pp.459-471, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 59
  • Publication Date: 2016
  • Doi Number: 10.1016/j.apor.2016.07.001
  • Journal Name: APPLIED OCEAN RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.459-471
  • Keywords: Beach nourishment, Rubble-mound structures, Benefit-cost analysis, Sediment transport, Shoreline retreat, 3RD-GENERATION WAVE MODEL, COASTAL EROSION, EVOLUTION, PROFILE, REGIONS
  • Karadeniz Technical University Affiliated: Yes

Abstract

A combined field and laboratory investigation was conducted to assess five options for creation of a recreational beach on a steep, armored shoreline on the eastern Black Sea coast. All designs incorporated a beach nourishment project placed between two existing, shore-normal, rubble-mound groins. Alternatives included the placement of a nearshore berm, longshore extensions added to the existing groins, and shore-parallel breakwaters. Several alternatives are reviewed for quantifying the performance of each design, including assessment of the change in shoreline position and project volume retained between the groins. Dimensionless benefits and benefit-cost ratios are quantified, and recommendations made on how to select the best outcome from a benefit-to-cost standpoint when options including hard structures are incorporated into a beach nourishment project design. (C) 2016 Elsevier Ltd. All rights reserved.