2018-112 - Laserfiche WebLink

Home Browse Search

ATTACHMENT A-1 REVISED GRANT WORK PLAN PROJECT TITLE: Indian River County Oyster Bed Project PROJECT LOCATION: Latitude/ Longitude: 27.651817, -80.371698 PROJECT BACKGROUND: The Indian River Lagoon has more than 2100 species of plants and 2200 species of animals making it North America's most diverse estuary. Indian River County (Grantee) is committed to protecting and preserving the Indian River Lagoon. In the past, the Grantee has successfully established an oyster bed reef in an area adjacent to Spoonbill Marsh in Vero Beach, Florida, which has reduced the amount of total nitrogen (TN) and total phosphorus (TP) entering into the Indian River Lagoon in the area. The Grantee wishes to continue its efforts by constructing a living shoreline/oyster reef along the shoreline of Foot Island. Foot Island is a roughly 2,750 sq. foot island located within Vero Beach, Florida. Evidence of erosion has been observed along the western and southern portions of the island where dead mangroves were exposed, likely due to boat wake and a relatively large fetch. The purpose of the proposed oyster reef would be to a) stabilize the Foot Island shoreline and b) improve water quality conditions of discharges from the adjacent Florida Department of Transportation (FDOT) outfall pipe into the Indian River Lagoon. At this point in time, the project's conceptual design is complete and the Grantee has received permission from the Indian River Board of County Commissioners to proceed with the proposed project. PROJECT DESCRIPTION: The project will require the Grantee to construct living shoreline/oyster reef along much of the Foot Island shoreline with emphasis on the western and southern portions of the island. The southern and western portions of the island are also adjacent to the FDOT outfall pipe. The oyster bags will be stacked to create void spaces throughout the reef structure of differing sizes, dimensions, and openings to the Indian River Lagoon. The proposed oyster reef is approximately 27,500 square feet. The reef location is close enough to the Foot Island that it will not inhibit the navigability of the area. The reef provides a habitat for attached and encrusting organisms such as oysters, and other invertebrates such as stone crabs, juvenile fish species, and game fish species. In turn, the reef will act as an in-situ water treatment system to facilitate the removal of total nitrogen (TN) and total phosphorus (TP) from stormwater discharged through the FDOT outfall into the Indian River Lagoon. The reef is self-perpetuating in that the attached and encrusting invertebrates and turf algae will continue to overgrow any bare areas created in the future. TASKS and DELIVERABLES: Task 1: Construction Task Description: The Grantee will construct an oyster bed reef in accordance with the construction contract documents. Deliverables: Construction completed to date as described in this task, as evidenced by these deliverables: 1) Dated color photographs of on-going work representing the time period covered in the payment request; 2) signed acceptance and brief description of the completed work to date by the Grantee; 3) written verification that the Grantee has received record drawings and any required final inspection report(s) for the project (as applicable); and 4) signed statement from a Florida Licensed Professional Engineer indicating construction has been completed in accordance with the construction contract documents (as applicable). DEP Agreement No. S0839, Attachment A-1, Page 1 of 2