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Artificial Reefs for Beach and Reef Restoration

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Artificial Reef Breakwater. 1998. 2001. 3-Row Reef Ball Breakwater (3 segments) in Dominican Republic. 6' wide 4' tall 2-ton Unit ... – PowerPoint PPT presentation

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Title: Artificial Reefs for Beach and Reef Restoration


1
Artificial Reefs for Beachand Reef Restoration
  • Lee E. Harris, Ph.D., P.E.,
  • Assoc. Professor of Ocean Engineering
  • Doug Bowlus Ashley Naimaster,
  • Ocean Engineering Graduate Students
  • Department of Marine Environmental Systems
  • Florida Institute of Technology, Melbourne,
    Florida

2
Purposes for Artificial Reefs
  • Provide environmental enhancement
  • Mitigate for damages to reefs
  • Ship groundings, dredging, burial, pollution
  • Restore damaged reefs
  • Natural events (storms, tsunamis, etc.)
  • Enhance eco-tourism
  • fishing, diving, snorkeling, surfing
  • Assist with shoreline stabilization

3
Reef Ball Units
4
Reef Ball Mold System
 
5
Anchoring
6
Reef Ball Artificial Reef Breakwater
Submerged breakwater with Reef Ball artificial
reef units
REEF UNITS
Reef Ball Units Underwater
Induced Wave Breaking
7
Artificial Reef Breakwater
3-Row Reef Ball Breakwater (3 segments) in
Dominican Republic
2001
1998
6 wide 4 tall 2-ton Unit
8
Artificial Reef Breakwater
April 2001 After 3 years
After 2 months
Table 1. Changes in Shoreline and Sand Volume
Calculations 1998 to 2001
Accretion
9
Grand Cayman 7mile Beach

10
October 2002 (left) February 2003(right)
11
Profile Line at Center Project
Accretion
12
Propagated Coral Transplants on Reef Ball Units
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