APST Annual Meeting to Discuss Beach Restoration

Recently, an invitation to was posted here to attend the Alligator Point\St. Teresa Annual Membership meeting on Saturday, September 3, at 9:00 am. The meeting will be held at the Mission by the Sea Church on Alligator Drive.

Since that invite an important issue has developed that we thought you might be interested in.

At a recent Alligator Point\St Teresa Association board of directors meeting, a member proposed a motion to support a beach restoration program at Alligator Point.

The motion was discussed and tabled because the board felt this issue should be presented to the membership at the Alligator Point \St Teresa Association annual meeting on September 3rd.  No action was taken by board.

The motion and its supporting arguments will be on the agenda at this meeting. If you are interested in this issue and want more information, or offer an opinion, please plan to attend the meeting, or send us an email with your thoughts.  Jmccloy3368@gmail.com

The motion was: “I move that the Alligator Point St. Teresa Association approve pursuing the Alligator Point Beach Restoration Project Joint Coastal Permit No. 0269516-001-JC Permit Extension. This motion is made with the understanding that this project will not incur financial expenditure to the property owners directly or indirectly impacted by the project.

It is our understanding that the issue is simply to support the extension of the Joint Coastal Permit. Any plans or actions would have to be developed and funding would have to be sought.

The full text of the motion and explanation follows:

“I move that the Alligator Point St. Teresa Association approve pursuing the Alligator Point Beach Restoration Project Joint Coastal Permit No. 0269516-001-JC Permit Extension. This motion is made with the understanding that this project will not incur financial expenditure to the property owners directly or indirectly impacted by the project.

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RATIONALE: The Franklin County Commission is the local governing body providing administrative and fiduciary oversight of the project and should be provided formal affirmation that Alligator Point residents are in favor of moving forward with this project.

TECHNICAL SUMMARY OF THE PROJECT:

The currently permitted 2.9 mile beach restoration project consists of three segments: 1) the 1.1 mile (~6,000 feet) County Park Beach Segment from R-210 extending east to R-216; 2) the 0.8 mile (~4,200 feet) Middle Beach Segment from R-216 extending east to R-220; and, 3) the 1.0 mile (~5,300 feet) Lighthouse Beach Segment from R-220 extending east to R-225. The initial sand placement includes 1.2 million cubic yards of sand to construct the design template, 0.5 million cubic yards of advanced fill to offset approximately 8 years of erosion, and 70,000 cubic yards of sand for 4% overfill for borrow area compatibility.

 

The borrow area(s) proposed to be used for the initial construction project are located offshore of the project requiring a dredge to pump the material onshore. The primary potential Borrow Area “AP-3” is located approximately 2-1/2 to 3 miles offshore, south of R-214.  Borrow Area “AP-3″ has sufficient quantities of beach compatible sand to supply initial construction and renourishment projects.  Two secondary borrow areas exist: 1) Borrow Area “AP-1” is located approximately 1 to 1-1/2 miles south of R-214; and, 2) Borrow Area “AP-2” is located approximately 1 to 1-1/2 miles south of R-210.  Both of these areas contain beach compatible sand; however, a layer of undesirable overburden material exists and must be sidecast to gain access to the beach compatible sand; therefore, Borrow Areas “AP-1″ and “AP-2″ will not be used for this project.

 

The proposed project is estimated to have a periodic renourishment interval of approximately 8 years with the placement of approximately 0.5 million cubic yards of sand for each event.  The material used for future renourishment intervals will be from offshore borrow sites identified above.  The frequency of maintenance intervals will be based on the performance of the beach fill and the frequency and intensity of storm events impacting this coastline.  Annual monitoring surveys will be performed to document the performance of the beach fill.

 

The beach “design” berm (estimated to be between 80 and 240 feet in width, toe of dune to seaward berm crest) at an elevation of +5 feet NAVD 88 will provide some level of increased storm protection (up to a 20-year event) by translating the wave-breaking zone further seaward away from the uplands.  Further storm protection is provided by adding the dune and will therefore raise the level of upland storm protection to the desired 30-year storm capacity.  The crest elevation of the dune (+13 feet NAVD 1988) should prevent waves from overtopping and reaching the upland property and structures. The addition of submerged offshore breakwaters will additionally add some level of storm protection while further reducing the cross shore erosion rates.  The effectiveness of submerged breakwaters for this project has not been evaluated nor permitted but is recommended for further study at a later time.