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Service Description: Offshore sediment sources along the entire reach of the San Diego Coastal RSM Plan region were previously identified by SANDAG and used for Regional Beach Sand Projects (RBSP I) in 2001, and a few additional potential borrow sites were identified during development of the San Diego Region Coastal Regional Sediment Management Plan. Ten offshore borrow sites were previously investigated as part of RBSP I.
SANDAG investigated many of the offshore potential sand deposits in 2008 as part of RBSP II. They used high resolution, multi-channel seismic technology along the entire region as a first step to identify candidate sites. This was followed by vibracoring at specific locations to retrieve, examine, and analyze physical samples. These recent sand investigations have yielded preliminary results of sand quality and quantity at the new sites, and at some of the previous sites as well. Sand quality as related to whether the deposits at those locations could be appropriate for beach restoration was assessed as: SM-1 is suitable to good; SO-7 yields no more sand; SO-6 is good to excellent; SO-5 is excellent (the investigation moved farther inshore than the area dredged in 2001); TP-1 is marginal; MB-1 is excellent; ZS-1 is poor; and SS-1 is suitable to good.
Locations developed by Moffatt & Nichol and submitted to CSMW by SANDAG as part of the San Diego County Coastal Regional Sediment amanagement Plan (2009).
Map Name: CSMW_San_Diego_Potential_Offshore_Borrow_Areas
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Description: Offshore sediment sources along the entire reach of the San Diego Coastal RSM Plan region were previously identified by SANDAG and used for Regional Beach Sand Projects (RBSP I) in 2001, and a few additional potential borrow sites were identified during development of the San Diego Region Coastal Regional Sediment Management Plan. Ten offshore borrow sites were previously investigated as part of RBSP I.
SANDAG investigated many of the offshore potential sand deposits in 2008 as part of RBSP II. They used high resolution, multi-channel seismic technology along the entire region as a first step to identify candidate sites. This was followed by vibracoring at specific locations to retrieve, examine, and analyze physical samples. These recent sand investigations have yielded preliminary results of sand quality and quantity at the new sites, and at some of the previous sites as well. Sand quality as related to whether the deposits at those locations could be appropriate for beach restoration was assessed as: SM-1 is suitable to good; SO-7 yields no more sand; SO-6 is good to excellent; SO-5 is excellent (the investigation moved farther inshore than the area dredged in 2001); TP-1 is marginal; MB-1 is excellent; ZS-1 is poor; and SS-1 is suitable to good.
Locations developed by Moffatt & Nichol and submitted to CSMW by SANDAG as part of the San Diego County Coastal Regional Sediment amanagement Plan (2009).
Copyright Text: Moffatt & Nichol, San Diego Association of Governments (SANDAG)
Spatial Reference:
102100
(3857)
Single Fused Map Cache: false
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Spatial Reference: 102100
(3857)
Full Extent:
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YMin: 3834686.9975999966
XMax: -1.30403280823E7
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Spatial Reference: 102100
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Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: San Diego Potential Offshore Borrow Areas
Author:
Comments: Offshore sediment sources along the entire reach of the San Diego Coastal RSM Plan region were previously identified by SANDAG and used for Regional Beach Sand Projects (RBSP I) in 2001, and a few additional potential borrow sites were identified during development of the San Diego Region Coastal Regional Sediment Management Plan. Ten offshore borrow sites were previously investigated as part of RBSP I.
SANDAG investigated many of the offshore potential sand deposits in 2008 as part of RBSP II. They used high resolution, multi-channel seismic technology along the entire region as a first step to identify candidate sites. This was followed by vibracoring at specific locations to retrieve, examine, and analyze physical samples. These recent sand investigations have yielded preliminary results of sand quality and quantity at the new sites, and at some of the previous sites as well. Sand quality as related to whether the deposits at those locations could be appropriate for beach restoration was assessed as: SM-1 is suitable to good; SO-7 yields no more sand; SO-6 is good to excellent; SO-5 is excellent (the investigation moved farther inshore than the area dredged in 2001); TP-1 is marginal; MB-1 is excellent; ZS-1 is poor; and SS-1 is suitable to good.
Locations developed by Moffatt & Nichol and submitted to CSMW by SANDAG as part of the San Diego County Coastal Regional Sediment amanagement Plan (2009).
Subject: Offshore potential and historic sand deposits with acceptable material as identified in the 2008 Regional Beach Sand Project.
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Keywords: borrow,offshore,sand,source,sediment,grain size,dredge site,historic dredge
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