Treasure Coast Industry Day.pdf

Treasure Coast Industry Day

PURPOSE

The purpose of this discussion is to review four upcoming dredging projects along the Treasure Coast shoreline, set to be adver sed and awarded this fiscal year. These projects are in St. Lucie and Mar n Coun es on South Hutchinson Island. They include maintenance dredging of Fort Pierce Harbor, with material placement at the Ocean Dredge Material Disposal Site (ODMDS) and onto Fort Pierce Beach, as well as three beach renourishment projects: the Fort Pierce Shore Protec on Project (SPP), South St.

Lucie Coastal Storm Risk Management (CSRM) project, and the Mar n County SPP (Figure 1). For detailed descrip ons of each individual project, see the informa on provided below

DATE AND TIME

30 April 2025 0900 Start

LOCATION

Jacksonville District Office 701 San Marco Blvd Jacksonville, Fl 32207

AGENDA

Introduc ons/Agenda (0900 – 0930)

Project Briefings (0930 – 1045) o Fort Pierce Harbor o Fort Pierce Shore Protec on Project o St. Lucie Coastal Storm Risk Management o Mar n County Shore Protec on Project

Break (1045 – 1100)

Fort Pierce Naval Amphibious Training Base (NATB) (1100 – 1130)

Muni ons and Explosives of Concern (MEC) Probability Assessments (1130 – 1200)

Lunch Break (1200 – 1300)

Individual Contractor Mee ngs (As requested) o Contractor 1 (1300-1330) o Contractor 2 (1345-1415) o Etc.

QUESTIONS

Industry is asked to provide a wri en response addressing the following objec ves or ques ons:

1. Does the Contractor plan to submit a bid for each of the four) contracts?

2. If all four contracts are awarded to one Contractor, would a single dredge be able to execute all work outlined in the above men oned four contracts?

3. If all four contracts are awarded to one Contractor and more than one dredge is used, how many of the four projects could be completed in parallel?

4. If all four contracts are awarded to one Contractor, can all four contracts be completed in a single placement season?

5. Could a single dredge be u lized for the work associated the Fort Pierce O&M project?

6. What dredging equipment would a Contractor propose to use for each of the four projects?

7. What are the produc on, schedule, and cost implica ons of a Moderate-High versus a Low Muni ons and Explosives of Concern (MEC) Probability Assessment?

a. All four contracts are subject to a Moderate-High MEC PA, which would require draghead screening on the dredge and addi onal material screening at the pump-out.

8. What screening methods does the Contractor propose for use on the beach to ensure sufficient produc on of sand placement while effec vely screening for MEC?

9. Is the availability of screening equipment a limi ng factor to execute the beach fill projects in a single season?

10. Does the Contractor foresee any concerns with the target depth being defined as a single foot above the maximum depth at the borrow area?

11. Does the Contractor have any concerns or input regarding any of the proposed work or borrow areas, including but not limited to the following?

a. The fill density requirements for the Mar n County Shore Protec on Project

b. The depth and layout of the St. Lucie borrow area

c. The cut layout for the Mar n borrow area

d. The borrow area design for the Fort Pierce Shore Protec on Project

12. Based on the permi ed condi ons for the Fort Pierce borrow area, which cuts would the Contractor recommend achieving the placement of 500,000 cubic yards of material on the beach?

13. Does the Contractor have any input regarding the ming of adver sement of the four (4) contracts?

14. What are your concerns, if any, regarding the execu on of these four (4) contracts?

15. Any addi onal comments or remarks?

16. Is a contractor more or less likely to bid a project based upon MEC probability assessment level or will the Contractors focus on the required limits imposed by the bid documents (screening on the dredge, screening at the pump out)?

17. Are there sugges ons to reduce construc on costs?

18. What informa on can the USACE provide to reduce construc on costs or increase likelihood of receiving bids?

PROJECTS

Fort Pierce Harbor Opera on and Maintenance (O&M)

Project Title

Maintenance Dredging, Fort Pierce Harbor St. Lucie County, Florida

Project Descrip on

Ft. Pierce Inlet is in St. Lucie County on the southeast coast of Florida connec ng the Atlan c Ocean with the Indian River lagoon. The Federal channel has three components. A 1.8-mile entrance channel that passes through the 850-foot-wide Ft Pierce Inlet and connects to a 1.3-mile interior channel that connects to a 44 acre turning basin which connec ons to the Atlan c Intracoastal waterway. The exis ng entrance channel has two segments from the Atlan c Ocean is 5,700 feet long and 400 feet wide segment then the channel width changes from 400 feet to 250 feet wide channel at 3,675 feet. The en re length is -30 feet referencing Mean Lower Low Water (MLLW). The interior channel is 250 feet wide and approximately 1.3 miles in length and is maintained at -28 feet MLLW that connects to a turning basin capable of accommoda ng 1,100-foot vessels.

The project is currently under design with expected award by October 30, 2025. An cipated project work consists of maintenance dredging the Fort Pierce Harbor iden fied isolated shoals with beach quality material to be placed in a designated beach disposal area located immediately south of Fort Pierce Inlet.

Non-beach quality material to be transported to and placed in the Fort Pierce Ocean Dredged Material Disposal Site (ODMDS). Offloading the beach fill will be done inside the South Je y of Fort Pierce Inlet.

Work also includes turbidity monitoring, endangered species monitoring, sea turtle non-capture trawl sweeping, and related incidental items.

Fort Pierce Shore Protec on Project (SPP)

Project Title

Fort Pierce Beach Renourishment St Lucie County, Florida

Project Descrip on

The Federally authorized, constructed and maintained SPP is completed every two (2) years and extends southerly from the south je y for 1.3 miles to include Surfside Park at its southern limit. The project includes Florida Department of Environmental Protec on (DEP) Monuments R34 - R41. Since ini al construc on completed in 1971 to 13th nourishment recently completed in May 2023, 6,700,000 cubic yards of material has been placed within the project footprint. Capron Shoal is the current borrow area source for the project and has been in use since the 2nd nourishment event that occurred in 1999. The Capron Shoal is located within state waters and is approximately 4.25 nau cal miles southeast from southern je y of Fort Pierce Inlet. Offloading the beach fill will be done inside the South Je y of Fort Pierce Inlet. While fill placement volumes have varied through the years 75 cy/ is the typical fill placement fill density for the project. the project is currently under design with expected award by September 30, 2025. Placement volume along the shoreline is approximately 500,000 cubic yards.

St Lucie Coastal Storm Risk Management

Project Title

Hutchinson Island Renourishment St. Lucie County, Florida

Project Descrip on

The St. Lucie County, Florida Coastal Storm Risk Management (CSRM) project protects approximately 3.3 miles of Atlan c Ocean fron ng shoreline in southern St. Lucie County. The proposed project includes beach and dune nourishment from Florida Department of Environmental Protec on (FDEP) Range Monument R-98 in St. Lucie County to the Mar n County line.

Ini al Construc on of the project was completed in May 2022. Sand was obtained from an offshore borrow source in Federal waters known as Borrow Area A-1 on St. Lucie Shoal, located on the Outer Con nental Shelf approximately 4 miles offshore of St. Lucie County, Florida. Recently, the project experienced storm damages due to Hurricanes Ian and Nicole. Project is undergoing design effort to expand the borrow Area to the east and with expected award by September 30, 2025. Placement Volume to be placed along the shoreline is approximately 400,000 cubic yards.

Mar n County Shore Protec on Project

Project Title

Hutchinson Island Beach Renourishment Mar n County, FL

Project Descrip on

This project is the Mar n County, Florida Shore Protec on Project (SPP). It is located on Florida's east coast, 100 miles north of Miami and due east of Lake Okeechobee. The coastal area consists of the Hutchinson Island area, which is a barrier island, separated from the mainland by the Indian River Lagoon.

Mar n County’s Ocean front beaches extend for 21.5 miles between. The Federal project is approximately

4.0 miles in length and runs from the St. Lucie County line south to Florida Department of Environmental Protec on (FDEP) Range (R) Monument R-25.

The project was authorized by Sec on 101(a)(8) of the Water Resources Development Act of 1990 passed 28 November 1990 (PL 101-640) in accordance with the report of the Chief of Engineers dated November 20, 1989. The authorized plan consisted of beach nourishment of 4.0 miles of shorefront southward from the St. Lucie County line to near the limit of Stuart Public Park (R-1 to R-25)

Hurricane Nicole was an extraordinary storm event that eroded an es mated 248,000 cy from the project area. Following the storm an es mated 385,000 cy will be needed to rebuild the full construc on template.

Proposed work will include nourishment of the full construc on template.

SUPPORTING GRAPHICS

Figure 1. Treasure Coast Projects