CN-370000-CN334-T4.pdf

Florida Department of Environmental Protection

TASK ASSIGNMENT NOTIFICATION FORM

Required Signatures: Adobe Signature

FDEP Contract No.: Task Assignment No.: Owner’s Name: Project No.:

Project Location: Project Name:

Consultant Name:

Consultant Representative: Phone: Email:

FDEP Contract Manager: Phone: Email:

Description of Task:

Project Manager:

Schedule Start Date: Fixed Price Cost:

Completion Date: Cost Reimbursement not to exceed:

Total Task Amount:

Approval Signatures:

Budget Representative, FDEP Signature Date

Project Manager, FDEP Signature Date

Contract Manager, FDEP Signature Date

Consultant Signature Date

Contract Authority, FDEP Signature Date

Project # Grant # Org Code Cat/Year Fund Module Object Code EO Amount

29 digit FLAIR Code: Total:

CN334 4 FDEP-DRP 61522

Big Talbot Island State Park Beach Re-Nourishment

Olsen Associates, Inc.

Albert E. Browder, 904.387.6114 abrowder@olsen-associates.com

Ralph Perkins 850.245.2460 Ralph.Perkins@FloridaDEP.gov

The project consist of development of construction alternatives to restore and enhance the BTI and Sawpit Island shorelines, for both storm protection and for habitat enhancement. See proposal dated 1.26.23

Garland Sandel or Successor date of execution $ 109,577.82 6.30.25

$ 109,577.82

Tamika Bass Tamika Bass Digitally signed by Tamika Bass Date: 2023.02.14 11:58:33 -05'00'

Garland Sandel Garland Sandel Digitally signed by Garland Sandel Date: 2023.02.14 13:46:26 -05'00'

Ralph Perkins Ralph M Perkins Digitally signed by Ralph M Perkins Date: 2023.02.14 15:03:52 -05'00'

Albert E. Browder, Ph.D.,P.E. Albert E Browder Digitally signed by Albert E Browder Location: Jacksonville, FL 904.387.6114 Date: 2023.02.15 08:43:41 -05'00'

Bryan Bradner Bryan Bradner Digitally signed by Bryan Bradner Date: 2023.02.17 14:15:22 -05'00'

61522 37502002187 080041/23 423001 U3200 131500 RF $ 109,577.82

$ 109,577.82 olsen associates, inc. | 2618 Herschel Street | Jacksonville, FL 32204 | 904.387.6114 | FAX 904.384.7368 www.olsen-associates.com

26 January 2023

Garland Sandel Project Manager Bureau of Design and Construction Division of Recreation and Parks 3900 Commonwealth Boulevard, MS 520 Tallahassee, FL 32399‐3000

RE: Professional Services Agreement No. CN334 TA4 Big Talbot Island State Park – Coastal Analysis for Repairs and Resilience

Dear Mr. Sandel;

For your review, Olsen Associates, Inc., has provided a proposal summary and man‐hour documentation for the services tasks identified below.

Please review the attached Proposal Summary and deliverables.

Sincerely, Albert E. Browder, Ph.D., P.E., D.CE Principal Engineer Olsen Associates, Inc.

Rev. 26‐Jan‐2023

Big Talbot Island / Sawpit Island 2 olsen associates, inc.

Coastal Analysis for Repairs and Resilience

Big Talbot Island State Park Resilience & Feasibility Study Duval County, FL

PSA No. CN334, Task Assignment No. 4

At Big Talbot Island (BTI State Park, the Florida Park Service (FPS maintains over 3.4 miles of shoreline along the tidal inlet at Nassau Sound in Duval County, FL, including the Big Talbot and Sawpit Island shorelines (Figure 1. The Sound shorefront of BTI consists of open, dry sandy beach, interrupted by underlying peat outcrops and naturally vegetated upland areas, including an array of fallen oak and cedar trees. The fallen trees have led to the popular nickname ‘Boneyard Beach’ for a portion of the shoreline, and the substantial peat outcrops have led to the nickname ‘Black Rock’ beach. On the adjacent Sawpit Island, the construction of the old Crady bridge in the 1940’s, combined with rising seas, storm impacts, and other forces, have led to an extremely eroded condition that is beginning to fragment the island. The littoral processes in the inlet, combined with human activities dating at least as far back as the 1940’s, have resulted in a highly stressed erosional shoreline condition along the study area.

The Park is home to endangered nesting sea turtles, numerous species of shorebirds, and the highly vulnerable eastern diamondback terrapin, among other resources. The FDEP Bureau of Design and Construction (BDC seeks the development of construction alternatives to restore and enhance the BTI and Sawpit Island shorelines, for both storm protection and for habitat enhancement, and to make modifications to those human activities that have potentially contributed to the ongoing erosional stress on those shorelines, including maintenance dredging activities and structures associated with the bridges across Nassau Sound.

PHASE 1a: Data Collection Description: Consultant shall

Acquire a high‐resolution LiDAR based topographic survey of the Nassau Sound southern shoreline from the north tip of Little Talbot Island northwestward to Sawpit Island at the Atlantic Intracoastal Waterway (AIWW) channel. A Professional Surveyor and Mapper (PSM) shall be subcontracted to perform the work in coordination with onsite State Park personnel. The survey shall be supplemented by a localized multibeam survey around the bridge elements near Sawpit Creek and Sawpit Island for this study, as well as full hydrographic survey of Nassau Sound (to be completed for and by others under a separate work order).

Phase 1a Deliverables: Both the LiDAR and multibeam survey shall be prepared in contoured planview maps (*.PDF, signed by PSM) for submittal to BDC and the Beaches program at FDEP, consistent with the data formatting and submission requirements of the Beaches, Inlets, and Ports Program. Survey data shall be provided in ASCII xyz format as directed by the FDEP.

Timeframe for completion: Three (3) months from Notice to Proceed to data submittal.

Performance Measure: Deliverables will be reviewed by the Department to confirm they are complete, accurate, and timely.

Big Talbot Island / Sawpit Island 3 olsen associates, inc.

Coastal Analysis for Repairs and Resilience

Figure 1 Location map, Nassau Sound, FL. The study area focuses on the northwestern shoreline of Big Talbot Island and Sawpit Island.

-5

510,000 520,000 530,000

Easting (ft, NAD83 SPC)

A1A

A1A

0 0.5 1.0 mi

ATLANTIC

OCEAN

DUVAL COUNTY, FL

NASSAU COUNTY, FL

Big Talbot Island / Sawpit Island 4 olsen associates, inc.

Coastal Analysis for Repairs and Resilience

PHASE 1b: Project Development Description: Consultant shall

The survey from Phase 1a will serve as the baseline for the study. Borrowing from prior studies (OAI, 2020) a project baseline for BTI shall be utilized to describe the conditions in both plan and profile views, with particular emphasis on the northwestern BTI shoreline near the bridge abutments and Sawpit Island. Similarly, a baseline shall be established along the Sawpit Island shoreline to describe the plan and profile conditions.

Utilizing the 2023 survey and historical surveys and aerial photography of the area, characterize the littoral forces acting upon the BTI and Sawpit Island shorelines and identify processes that contribute to the erosion of the area. Determine current erosion rates of the shorelines. This will include a review of numerical modeling analyses performed recently for the Nassau Sound area (OAI, 2020, among others).

assess the current sediment budget status of Nassau Sound, with consideration for the ongoing USACE maintenance dredging operations along the Atlantic Intracoastal Waters (AIWW) and the periodic dredging of a portion of the ebb shoal for the South Amelia Island Shore Stabilization Project. The goal is to identify sand volumes available for use along the Sawpit and/or BTI Nassau Sound shorelines.

develop construction alternatives, including potential material sources, to address the currently‐eroded conditions of the BTI and Sawpit Island shoreline. If desired, a site assessment shall be conducted with FPS and BDC (if desired) personnel to further describe and refine the suggested alternatives. As many as three alternatives (beyond the no‐action alternative) shall be prepared.

Attend up to three meetings with BDC, Park staff, FDEP Beaches, and the USACE Regulatory, as appropriate, to discuss alternatives development, to present results of findings, and determine a recommended alternative for future phases of work.

Phase 1b Deliverable: Consultant shall provide a report of findings, provided to the BDC in electronic format (*.PDF), to describe the study items listed above and outline:

the scope of the project alternatives.;

the needed material volumes (sand and other resources, such as rock, geotextile materials, etc., as applicable);

the expected construction process: access considerations, corridors, and timing;

preliminary cost opinions for the alternatives presented;

the permitting and timing/seasonality requirements, consistent with current regulations and the requirements of the Talbot Islands State Parks Unit Management

Plan (FDEP, 2008), the Nassau River ‐ St. Johns River Marshes Aquatic Preserve UMP, the Coastal Barrier Resources Act, and other relevant policies.

Timeframe for completion: Six (6) months from Notice to Proceed.

Performance Measure: Deliverables will be reviewed by the Department to confirm they are complete, accurate, and timely.

Big Talbot Island / Sawpit Island 5 olsen associates, inc.

Coastal Analysis for Repairs and Resilience

Fixed Price Cost Phase 1 Data Acquisition:

PHASE 1a – Data Acquisition

Firm Name Position Classification Hourly Rate

Hours Total Fixed Price Cost

Olsen Associates, Inc. Principal $226 8 $1,808.00

Olsen Associates, Inc. Senior Engineer $184 8 $1,472.00

Olsen Associates, Inc. Coastal Engineer I $131 0 $0.00

Olsen Associates, Inc. Coastal Engineer II $98 0 $0.00

Olsen Associates, Inc. Coastal Engineer III $84 48 $4,032.00

Olsen Associates, Inc. Draftsman/Designer (CADD) $68 0 $0.00

Olsen Associates, Inc. Administrative Assistant $73 2 $146.00

Arc Survey & Mapping Topographic Survey Field Crew $173.41 12 $2,080.92

Arc Survey & Mapping Hydrographic Survey Crew $312.68 8 $2,501.44

Arc Survey & Mapping Professional Surveyor and Mapper $169.79 24 $4,074.96

Arc Survey & Mapping CADD/Technician $87.10 40 $3,484.00

Arc Survey & Mapping Clerical $70.90 5 $354.50

$19,953.82

Total for Phase 1a: $19,953.82

PHASE 1b – Project Development

Firm Name Position Classification Hourly Rate

Hours Total Fixed Price Cost

Olsen Associates, Inc. Principal $226 136 $30,736.00

Olsen Associates, Inc. Senior Engineer $184 136 $25,024.00

Olsen Associates, Inc. Coastal Engineer I $131 0 $0.00

Olsen Associates, Inc. Coastal Engineer II $98 0 $0.00

Olsen Associates, Inc. Coastal Engineer III $84 336 $28,224.00

Olsen Associates, Inc. Draftsman/Designer (CADD) $68 40 $2,720.00

Olsen Associates, Inc. Administrative Assistant $73 40 $2,920.00

$89,624.00

Total for Phase 1b: $89,624.00

TOTAL PHASE 1: $109,577.82

Note: Subsequent phases, including design, permitting, and construction, will depend upon the alternative selected by BDC/FDEP.