P1254325873mlEjw

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The Development of Sediment Criteria for
Oceanfront Beaches
JEFF WARREN, Coastal Hazards Analyst
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EXISTING LANGUAGE
15A NCAC 07H.0308 Specific Use Standards for
Ocean Hazard Areas
(a) Ocean Shoreline Erosion Control Structures
(3) Beach Nourishment. Sand used for beach
nourishment shall be compatible with existing
grain size and type. Sand to be used for beach
nourishment shall be taken only from those areas
where the resulting environmental impacts will be
minimal.
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REVIEW Organization of Recommendations
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1. General Definitions
2. Characterization of Beach to be Nourished
3. Characterization of Borrow Site Material
4. Compatibility of Borrow Site Material to the
   Beach to be Nourished
5. Execution of Nourishment Project
6. Post-nourishment Monitoring and Mitigation of
   Beach to be Nourished and Borrow Site?

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COARSE limit native 4
FINES limit native 5
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Sampling Transect
MHW
FRONTAL DUNE CREST
MLW
MEAN FAIRWEATHER WAVE BASE (approx 30 m)
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Sampling Protocol
total samples (subaerial AVG submarine AVG) /
2
subaerial
submarine
MHW
MLW
FRONTAL DUNE CREST
MID TIDE
TROUGH
DUNE TOE
MID BERM
MEAN HIGH WATER
MEAN LOW WATER
SHOREFACE (NEARSHORE)
BAR
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What is an EVALUATION period?

• Review formal recommendations from CRC Science
  Panel on Coastal Hazards
• New scientific data?
• Stakeholder input?
• Analysis of how recommendations and draft rules
  will affect the real world situation for NC
  communities

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DATA COLLECTION
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COARSE LIMITS USACE none DCM native 4
7.15
FINE LIMITS USACE 10 DCM native 5 7.27
DEFECIT 2.33 500,000 yds3 11,600 yds3
Average volume of all NC projects 500,000 cubic
yards
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COARSE LIMITS USACE none DCM native 4
7.15
FINE LIMITS USACE 10 DCM native 5 7.27
DEFECIT 2.33 543,387 yds3 12,661 yds3
Average volume of all NC projects 500,000 cubic
yards
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Upcoming Stakeholder Input

• CRAC April 6
• Carteret County Beach Commission April 25
• Coastal Federation May 4
• Coastal Communities Coalition May
  12-13, Emerald Isle
• Brunswick Co. Beach Consortium June 24
• Thirteen coastal engineering firms
  (NC, FL, SC, DE, MA)
• Upcoming municipal mailout summer

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Upcoming Stakeholder Input
www.nccoastalmanagement.net/sediment.htm
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BEACH INLET MGMT PLANS RSM Regional Sediment
Mgmt
(i.e., Brandt Island)
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FOR MORE INFORMATION Jeff.Warren_at_ncmail.net (919)
733-2293 ext. 251 www.nccoastalmanagement.net/sed
iment.htm
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