US Army Corps of Engineers
Jacksonville District Website

Public invited to comment on the St. Johns County draft shoreline study

Published Feb. 17, 2016

Jacksonville, Fla. – The U.S. Army Corps of Engineers, Jacksonville District invites the public to review and comment on the St. Johns County, Fla., Coastal Storm Risk Management Project draft feasibility study and environmental assessment. 

The open comment period starts Thursday, Feb. 18, and ends Apr. 4, 2016.

The study team, consisting of federal, state and local agency officials, assessed the feasibility of providing federal coastal storm risk management measures to portions of St. Johns County’s shoreline. Specific problems in the study area include storm damage due to erosion, inundation, and waves threatening infrastructure, natural habitat and recreational opportunities.

Shoreline erosion severely threatens State Road A1A, the only north-south hurricane evacuation route for communities along the coastline.  SR A1A is an integral part of the county’s infrastructure and is essential for public safety prior to and following major storm events.

The St. Johns County shoreline is approximately 42 miles long. The Corps of Engineers examined opportunities to reduce the risk of coastal damages and improve conditions on roughly 9.8 miles of beach.  The study area consisted of 3.8 miles in the South Ponte Vedra area, 3.7 miles in Vilano Beach and 2.3 in Summer Haven.

Other areas of the county’s shoreline were found to not have excessive erosion such that infrastructure was threatened.

Alternatives considered in the study included no action, non-structural measures (flood proofing, relocation, land acquisition, etc.), shore protection with hard structures (seawalls, revetments, groins, etc.), shore protection with soft structures (beach nourishment, geotubes, etc.), combinations, and others.

The tentatively selected plan (TSP) includes beach and dune nourishment within the Vilano Beach reach and a small portion of the South Ponte Vedra Beach reach.  During the study process, the team screened out the Summer Haven area because St. Johns County is already conducting managed retreat; and, most of the South Ponte Vedra area due to its lack of public parking and access, which is a requirement for a federal beach project.  

The TSP design consists of a 60-foot seaward berm extension and maintenance of the existing dune along 2.6 miles, approximately from the southern end of the Serenata Beach Club to San Pelayo Court.   The Corps anticipates an initial construction, and then four periodic nourishment events at about 12-year intervals.  Initial construction would use about 1.3 million cubic yards of material and the periodic nourishments would use roughly 866,000 cubic yards each. 

For more details on the draft study and environmental assessment, please go online to www.saj.usace.army.mil/Missions/CivilWorks/ShoreProtection/StJohns.aspx.

People can send comments by email to Aubree.G.Hershorin@usace.army.mil or via mail to: U.S. Army Corps of Engineers, Jacksonville District, Planning and Policy Division, Environmental Branch, Attn: Aubree Hershorin, Ph.D., P.O. Box 4970, Jacksonville, FL 32207.  The open comment period ends Apr. 4, 2016.



Contact
Susan Jackson
904-232-1630
susan.j.jackson@usace.army.mil

Release no. 16-016