2011-2012 Reports

ENGINEERED BEACH DOCUMENTATION COMPLETED





In April 2012, Olsen Associates completed the final task of 2011 the Beach Renourishment Project. This report prepared for the three (3) project permittees-Nassau County, Florida; South Amelia Island Shore Stabilization Association; and, the Florida Park Service was designed (1) to provide the Federal Emergency Management Agency (FEMA) with sufficient engineering details regarding the “engineered beach” fill project so as to allow for a timely and favorable determination by that agency as to eligibility for future post-disaster funding and the issuance of one or more Project Worksheets (PW) required for project remediation subsequent to a declared event. (2) To provide Nassau County’s elected officials and staff with technical and procedural guidance as to the re-establishment of the subject beach as “infrastructure” subsequent to the occurrence of a major tropical storm, hurricane, or nor’easter event which constitutes a federally declared disaster. This will relieve the County of having to develop a plan-of-action for the beaches of South Amelia at a time of significant hardship associated with the potential re-establishment of other countrywide basic infrastructure (i.e., sewer, water, transportation, electricity, etc.) immediately following a major disaster.

To view the Complete Document click on the following Links below.
Engineered Beach Documentation Required to Establish Post-Disaster Funding Eligibility Report (Apr-2012)
Appendices:

A. Post-Const Report (Nov-2011)

B. Construction Plans
C. Post-Const Profiles
D. Pre-Const Profiles


PROJECT UPDATES

April 2012-
SAISSA, Inc. and the Nassau County Board of County Commissioners selected Olsen Associates to provide Coastal Engineering Services to the South Amelia Island Shore Stabilization Municipal Service Benefit Unit (SAISS-MSBU). Olsen was awarded a five (5) year contract with an option to renew for an additional five years.

March 2012-
The Army Corps of Engineers certified the SAISS Project (Permit # SAJ-2001-3870) is complete. Click Here to view the full letter approval.

March 2012-
Beach Tilling and Scarp Removal Contract awarded to Eastman Aggregates by the Nassau County Board of County Commissioners. The contractor received a one year contract that may be renewed in one year increments for a total of five years. Eastman Aggregate of Lake Worth Florida completed the work the last week of March prior to the start of the Sea Turtle Nesting Season.

March 2012-
Scheda Ecological Associates, Inc., Tampa Florida, received a contract to monitor shorebirds for the SAISS-MSBU project. The contract awarded by the Nassau County Board of County Commissioners is for one year with four (4) possible yearly renewals. The monitoring data is required by the Beach Fill Permit and is reported monthly to the Florida Wildlife Commission.

February 2012-
Dr. Kevin Bodge, Olsen Associates, presented a lecture entitled BEACHES AND STRUCTURES, 101: AN INTRODUCTION TO HOW BEACH WORK ON Monday, February 27, 2012 at Omni Amelia Island Plantation. His talk was the first in a series of presentations planned annually by the South Amelia Island Shore Stabilization Association. Dr. Bodge recorded his presentation and CDs of the presentation will be available from Olsen Associates. For more information on a copy of the presentation, please contact
kbodge@olsen-associates.com

February 2012 -
Al Browder, Ph.D., P.E., D.CE and SAISS Project Design Engineer presented the 2011 SAISS Beach Re-nourishment Project. Click Here to view the Beach Preservation and Technology Conference

August 2011-
Beach Renourishment Project completed. Click
Here to view complete Story.

September 2011-
Florida Shore and Beach Preservation Association Annual Conference. Click
Here to view Report.

September 2011-
As Built Project Certification. Click
Here to view Post Construction Survey.

October 2011-
Post-construction Monitoring Plan modified regarding the measurement of Sea Turtle nest depths and sand sample collections. Click
Here to view Letter to U.S. Fish and Wildlife Service, SAJ-2001-3870 (IP-PRJ).



October 2011-
SAISSA Trustees Workshop reviewed past accomplishments and Future Needs. Click
Here to view Olsen Presentation (22-pages with Pictures).

November 2011-
2011 Beach Renourishment:South Amelia Island Shore stabilization Project (FDEP Permit No. 0187721-010-JC) POST –CONSTRUCTION DOCUMENTATION REPORT completed. During construction, a total of 2,010,254 cy was dredged from within the borrow site.
Click Here to view the complete report.

 

The Public is Welcome at
SAISSA TRUSTEES
Board Meetings
Click Here for Schedule



WHAT’S HAPPENING
TO OUR BEACH ?

Recently, several residents have voiced concern about the effect of storms and the recent Nor’easter on our newly renourished beach. We hope the following response from our coastal engineer, Erik Olsen, will provide reassurance that, despite your worries, all is normal and proceeding according to plan.

As explained in a communication distributed after completion of the construction phase of the project, the dry beach you saw was never intended to be the final product. The dry berm portion as constructed by the dredge contractor does NOT represent the “design” beach. The finished dry beach will be some 25-50% narrower. After the initial placement of fill sand, the berm will “equilibrate” in a seaward direction as the beach profile is reshaped to a more natural configuration. As this occurs over time, the newly constructed beach width will narrow as sand is transported (part of the design) to depths exceeding 15 ft. or more.

The speed at which the equilibration process occurs is a function of wave energy. Hence, a robust Nor’easter can cause a large part of the reshaping process to take less than the typical 12-18 months. As this phenomenon occurs, it is important to understand that the process is NOT erosion and the sand is NOT lost. The schematic below depicts the expected evolution of a newly placed fill berm to a more natural profile. It is also important to realize that even after equilibration, the dry beach berm typically narrows in the winter and widens in the summer.

Often, a storm related equilibration can result in scarps (very steep banks or slopes) which if problematic can be mechanically knocked down. A newly pumped hydraulic fill is generally prone to scarping, but over time, the propensity for scarping will abate.
To View the Report, Click Here