Draft_Permit_Application.pdf

Humiston & Moore Engineers

Contents

1. FDEP applica�on form

2. Permit Plans

3. Execu�ve Summary of technical reports

4. HM 2020 feasibility study

5. HM 2022 design development report

6. HM 2024 Storm risk assessment and project benefit analysis

7. WS 2024 Economic impact analysis

8. HM 2025 Design alterna�ve’s modeling and analysis

Casey Key Shoreline Resiliency Project Dra� Permit Applica�on

September 25, 2025

5679 STRAND COURT

NAPLES, FLORIDA 34110

FAX: 239 594 2025

PHONE: 239 594 2021

DEP Form 73-500 (effective September 2019) Adopted by reference in rule 62B-49.005, F.A.C.

JOINT APPLICATION

FOR

JOINT COASTAL PERMIT

AUTHORIZATION TO USE

SOVEREIGNTY SUBMERGED LANDS

FEDERAL DREDGE AND FILL PERMIT

FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION

U.S. ARMY CORPS OF ENGINEERS

JOINT APPLICATION FOR JOINT COASTAL PERMIT / AUTHORIZATION TO USE

SOVEREIGNTY SUBMERGED LANDS / FEDERAL DREDGE AND FILL PERMIT

APPLICATION INSTRUCTIONS

ADDRESS: PLEASE SUBMIT THIS APPLICATION ELECTRONICALLY TO:

Beaches, Inlets and Ports Program Florida Department of Environmental Protection BIPP@dep.state.fl.us Division of Water Resource Management 2600 Blair Stone Road, Mail Station 3544 Tallahassee, FL 32399

INTRODUCTION

Attached is the Joint Coastal Permit application form. This form is required when applying for the following:

1) A Joint Coastal Permit for activities that extend onto sovereign submerged lands of Florida seaward of the mean high-water line, and are likely to have a material physical effect on the coastal system or natural beach and inlet processes, pursuant to Sections 161.021, 161.041, and 161.055, F.S., and Rule 62B-49.001, F.A.C.;

2) Authorization to use sovereign submerged lands in association with a Joint Coastal Permit pursuant to Chapter 253, F.S., and Rule 18-21, F.A.C.; and

3) A federal dredge and fill permit for activities outlined above.

APPLICATION SUBMISSION

Submit the completed application form, along with the certified drawings and all the supporting materials requested on the form. Submit the entire application package to the Department by email at BIPP@dep.state.fl.us. Please see the web page at https://floridadep.gov/rcp/beaches-inlets-ports/content/tools-applicants for instructions on submitting items too large for email.

APPLICATION FEES

Refer to the Joint Coastal Permit Fees webpage located at https://floridadep.gov/rcp/beaches-inlets-ports/content/bipp-fees-jcp-erp for a summary of the fees required. Please submit your fee (payable to the Department of Environmental Protection) online at http://www.fldepportal.com/DepPortal/go/pay-outstanding-balances/. If electronic submittal is not available, please mail your application fee (check or money order) to the address above.

DISTRIBUTION TO THE U.S. ARMY CORPS OF ENGINEERS

When activities are proposed in, on or over wetlands or other surface waters, the Department shall forward a copy of the application to the United States Army Corps of Engineers (USACE). The USACE will advise you of any additional information that may be required to complete the federal dredge and fill portion of the permit application. The information requested in this application form may be more than required to make a complete application to the USACE. However, it is useful and may be essential for subsequent evaluation. Please provide measurements in both English units and metric equivalents for projects that require a federal permit.

CONSULTATION

Applicants are encouraged to consult with Department staff prior to submittal of the formal application. If you have any questions, please consult with the staff of the Department’s Beaches, Inlets and Ports Program prior to submittal of the formal application. Contact information is located on the Beaches, Inlets and Ports Program webpage located at:

https://floridadep.gov/rcp/beaches-inlets-ports/content/bipp-contacts.

NOTE: Additional information may be required by statute or rule, or if found by staff to be necessary for proper evaluation of the application under applicable statutory and rule criteria.

mailto:BIPP@dep.state.fl.us mailto:BIPP@dep.state.fl.us http://www.fldepportal.com/DepPortal/go/pay-outstanding-balances/

3. Name of activity

JOINT APPLICATION FOR JOINT COASTAL PERMIT / AUTHORIZATION TO USE

SOVEREIGNTY SUBMERGED LANDS / FEDERAL DREDGE AND FILL PERMIT

4. Location of activity, including dredging, filling and construction sites (use additional sheets, if needed):

County(ies) Section(s) Township Range DNR reference monument(s) Street address, road or other location City, Zip Code if applicable

5. Describe in general terms the proposed activity including any phased activities. Please include the following details:

• Type of project (e.g., restoration, nourishment, bypassing, groins, maintenance dredging, jetty rehabilitation);

• Number of events requested (once or as-needed);

• Fill template (lengths, dune crest and berm widths, slopes, and corresponding elevations in North

American Vertical Datum (NAVD) down to toe of fill);

• Dredge/equipment type and/or construction method;

• Borrow Areas (indicate if it is an offshore site, an ebb shoal or a flood shoal; specify maximum allowable dredge depths; indicate the vertical datum NAVD, MLW, MLLW, etc.; and maximum depth);

• Approximate volume to be dredged/filled during single event;

• Upland, nearshore or offshore disposal sites;

• Staging areas, stock piling, access corridors;

• Type/number/dimensions/elevations of structures;

• Acreage of direct and secondary impacts for each impacted community type; and

• Acreage of mitigation for each type of community.

FOR AGENCY USE ONLY

USACE Application Number: DEP Application Number:

Date Application Received: Date Application Received:

1. Name of authorized agent for permit application (if applicable)

City State Zip Code Telephone

Email Fax

2. Name of applicant Mailing Address

City State Zip Code Telephone

Email Fax

Matthew R. Osterhoudt, Director Mailing Address 1001 Sarasota Center Boulevard

Sarasota FL

34240 941-415-4423 mosterho@scgov.net 239-594-2025

Sarasota County Government

Sarasota FL

Casey Key Shoreline Resiliency Project

Sarasota County

R-81 to R-109 Casey Key

22 38S 18E

Please provide measurements for projects that require a federal permit in both English units and metric equivalents.

Check here if information is continued on an attached sheet

6. Describe the purpose and need of the proposed activity including any public benefits. Include a detailed statement describing the existing and proposed upland uses and activities. Please consider the public interest test outlined in Section 373.414 (1), F.S., with the understanding the project in Outstanding Florida Waters (OFW) must be CLEARLY in the public interest, whereas other projects must NOT BE CONTRARY to the public interest.

1. Whether the activity will adversely affect the public health, safety, or welfare or the property of others;

2. Whether the activity will adversely affect the conservation of fish and wildlife, including endangered or threatened species, or their habitats;

3. Whether the activity will adversely affect navigation or the flow of water or cause harmful erosion or shoaling;

4. Whether the activity will adversely affect the fishing or recreational values or marine productivity in the vicinity of the activity;

5. Whether the activity will be of a temporary or permanent nature;

6. Whether the activity will adversely affect or will enhance significant historical and archaeological resources under the provisions of Section 267.061, F.S.; and

7. The current condition and relative value of functions being performed by areas affected by the proposed activity.

Additionally, consider the proprietary public interest test, as defined in Subsection 18-21.003(51), F.A.C.: Public interest means demonstrable environmental, social, and economic benefits which would accrue to the public at large as a result of a proposed action, and which would clearly exceed all demonstrable environmental, social, and economic costs of the proposed action. In determining the public interest in a request for use, sale, lease, or transfer of interest in sovereignty lands or severance of materials from sovereignty lands, the board shall consider the ultimate project and purpose to be served by said use, sale, lease, or transfer of lands or materials

If a historical resource check on any of the proposed project has been obtained from the Department of State’s Division of Historical Resources, please provide a copy of the report. Otherwise, the Department will conduct a historic resource check of the project on your behalf.

Check here if information is continued on an attached sheet.

7. Indicate the requested duration of your permit

15 years 3 years (experimental project) Other requested duration (<15 years)

5 years (construction phase and perpetual operation and maintenance phase, for sand transfer plants and mitigation for erosion from erosion control structures that require long term operation and maintenance)

8. Please identify by number any JCP / DBS / Wetland Resource / ERP / USACE Permits pending, issued or denied for projects at the location, and any related enforcement actions.

Agency Date No. / Type of Application Action Taken

Check here is information is continued on an attached sheet.

9. Has an Erosion Control Line (ECL) been established pursuant to Sections 161.141 - 161.211, F.S.? YES NO

If yes, please provide evidence that the ECL has been recorded and show the location of the established ECL on all appropriate drawings.

10. If the applicant is not a government entity: Satisfactory evidence demonstrating that the applicant has sufficient control and interest in the riparian upland property, as described in Subsection 18-21.004(3)(b), F.A.C. If the applicant is not the property owner, then authorization from the property owner for such use must be provided.

11. The information in this item is only required if you are applying for a sovereignty submerged lands easement or lease: A list of the names and addresses of owners of all riparian property within 1,000 feet (and within a 500 feet radius) of the proposed sovereignty submerged lands easement or lease site from the latest county tax roll. If the property is under cooperative or condominium ownership, the name and mailing address of the cooperative or condominium association will be adequate. This would not apply to off-shore leases or easements that are not located within 1,000 feet of the shoreline.

12. The information in this item is only required if you are applying for a sovereignty submerged lands easement or lease: A legal property description and acreage of any sovereign submerged land that would be encompassed by the requested lease or easement, plus a survey prepared, signed and sealed by a person properly licensed by the Florida State Board of Land Surveyors.

INFORMATION FOR ASSESSMENT OF SOVEREIGNTY SUBMERGED LANDS APPLICATION:

SUBMIT THE FOLLOWING ITEMS AS ATTACHMENTS:

Note: A justification or explanation is required when requesting a waiver of any of the items below. Waiver is defined as relinquishing the requirements for the cited information.

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13. Topographic and bathymetric survey drawings of the proposed project site(s), including profiles and a contour map that reflect conditions within the past six (6) months, in accordance with Subsection 62B-41.008(1)(e), F.A.C. Drawings shall meet the State’s minimum technical standards and shall be signed and sealed by the professional surveyor, duly registered pursuant to Chapter 472, F.S., who performed the survey. This item may be included in item 14 (permit drawings).

14. Complete sets of permit drawings, certified by an engineer duly registered pursuant to

Chapter 471, F.S. These drawings shall be submitted utilizing aerial photography backgrounds. Each drawing shall include an accurate scale or dimensions, and all information shown on the drawing shall be clearly legible. The plans shall clearly distinguish between existing and proposed structures and grades, and shall include the following:

a. Plan view of the proposed activity depicting the mean high-water line, any easement boundary and the ECL (if applicable) within the area of influence of the proposed activity. Identify the boundaries of significant geographical features (e.g., channels, shoals) and natural communities (e.g., submerged grass beds, hardbottom or mangroves) and special aquatic or terrestrial sites (parks, sanctuaries, refuges, OFW, aquatic preserves, etc.) within the area of influence of the activity. Include a north arrow and a scale bar on each drawing.

b. Cross-section views of the proposed activity depicting the slopes, the mean high-water line, any easement boundary and the ECL (if applicable) within the area of influence of the proposed activity sufficient to depict the geographical extent ofthe project, and the potential effects on the coastal system and environmental resources. Identify the boundaries of significant geographical features and natural communities in the area of influence of the proposed activity. Elevations indicated on the cross-sections shall be referenced to the NAVD.

c. Details of construction, including materials and general construction procedures and equipment to be used (e.g., construction access, staging areas (both on land and in water), dredging method, dredged material containment, pipeline location).

d. Details of any existing structures on the site that may be directly or indirectly affected by, or that may directly or indirectly affect, the proposed activity. This shall typically include shore protection structures such as groins, utility or stormwater outfalls, including subgrade structures, and any derelict structures such asremnant walls or pilings.

15. A proposed construction schedule.

INFORMATION FOR ASSESSMENT OF IMPACTS TO THE COASTAL SYSTEM

SUBMIT THE FOLLOWING ITEMS AS ATTACHMENTS:

Note, a justification or explanation is required when requesting a waiver of any of the items below. Waiver is defined as relinquishing the requirements for the cited information.

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16. Permit applications for excavation or fill activities shall include the following detailed information concerning the material to be excavated and the existing material at thebeach fill site:

a. Site plans showing the location of all core borings and the boundaries of the area to be excavated.

b. Core boring logs of all cores taken throughout the area to be excavated and surrounding area. Logs should extend at least two feet below the proposed bottom elevation. The depth of each visible horizon in the log should be reported relativeto NAVD (88) and the material in each stratum classified according to grain size.

c. Particle size and color analysis of the sediment. Gradation curves, frequency distribution curves and data analysis sheets should be produced from sieve analysis of each stratum in the core. Grain size distribution must be determined down to the standard unit 230 sieve size. Color analysis of moist sediment should use Munsell system of hue, value and chroma.

d. Carbonate content and percent organics by dry weight from representative stratum in each core. Chemical analyses shall be required if there is reason to suspect that the sediments are contaminated.

e. Representative physical samples and particle size, color and carbonate content of the existing material at the beach fill site.

f. A sediment Quality Assurance/Quality Control (QA/QC) plan that will ensure thatthe sediment to be used for beach restoration or nourishment will meet the standards set forth in Rule 62B-41.007, F.A.C.

Submit all geotechnical information in electronic file format suitable for input to the Department’s Regional Offshore Sand Source Inventory (ROSSI) database. The data may be submitted in Excel, Access, and/or gINT® files. The MS Access Front End Loader and gINT® files are available on the ROSSI website http://rossi.urs-tally.com/Downloads.aspx.

Submit electronic spatial data of borrow area boundaries, core boring locations, and seismic track lines with time stamps and shot points, and .pdf files of seismic images with time stamp annotations. Spatial data are to be submitted in a georeferenced format, which may the following: MicroStation (.dgn), AutoCAD (.dwg, .dxf), GIS (.shp, coverages, geodatabase, kmz, etc.). All electronic data should be submitted via the ROSSI website using the upload link on the home page (http://rossi.urs-tally.com).

17. Analysis of the compatibility of the fill material with respect to the existing sediment at the placement site. The analysis should include all relevant computations, the overfill ratios, and superimposed graphs of the cumulative grain-size distribution and the frequency distribution of the fill material over the data for the existing sediment at the placement site. Provide computations of borrow area volume and composite fill material characteristics (mean grain size and sorting, percent carbonate content) in an electronic spreadsheet.

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18. Using an established natural community classification system, describe each natural community within the area of influence of the proposed activity. This includes wetlands, mangroves, seagrasses, hardbottom or any other coastal resource, within a minimum of 1,000 feet in both shore parallel directions of the project boundary. Include an aerial map of these communities outlined, as well as:

a. Acreage.

b. Identification of the flora and fauna to the lowest taxon practicable.

c. Characterization of dominant and important flora and fauna and estimates of percent biotic cover.

19. Provide detailed information on season of occurrence, density, and location of threatened or endangered species whose range occurs within the proposed activity. Include any results of available wildlife surveys that have been conducted on the site.

20. Discuss any proposed methods to reduce potential impacts to threatened and endangered species, including lighting ordinances (outline procedures), avoidance (e.g., working outside of season), and minimization measures.

21. Provide an analysis of the expected effect of the proposed activity on the coastal system including but not limited to:

a. Analysis of the expected physical effect of the proposed activity on the existing coastal conditions and natural shore and inlet processes. The analysis should include a quantitative description of the existing coastal system, the performance objectives of the proposed activity, the design parameters and assumptions, relevant computations, validation of the results and the data used in the analysis.

b. The information specified in Rule 62B-41.008, F.A.C..

c. Reasonable assurances that a regulated activity will not cause unacceptable cumulative impacts pursuant to Rule 62-330, F.A.C., and defined in Rule 62B-41.002, F.A.C.

22. Identify any areas within any proposed mixing zone(s) that contain significant submerged resources, such as hardbottom, seagrasses or mangroves. Explain why the size of the proposed mixing zone is the minimum necessary to meet water quality standards and provide justification for that size. If the project is in or adjacent to an OFW and an antidegradation variance is proposed, please provide the proposed NTU variability above background, as well as the justification (measurements of natural background variability measured within a tidal cycle). Describe the location and details of the erosion, sediment and turbidity control measures to be implemented during each phase of construction and all other measures used to minimize adverse effects to water quality. If a mixing zone variance is proposed, please provide a narrative description and graphic representation of the mixing zone.

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23. Provide a written statement providing the necessity and justification for the potential impacts to the coastal ecosystem that may be caused by the proposed coastal construction. Provide a physical monitoring plan, pursuant to Rule 62B-41.005, F.A.C.

24. Provide proposed biological monitoring plans that will provide reasonable assurance that the predicted level of direct and secondary impact to adjacent biological resources, such as hardbottom and / or seagrasses was correct. Additionally, if impacts to natural resources are anticipated, a narrative description of any proposed biological mitigation plans, pursuant to Rule 62-345, F.A.C., including purpose, a comparison between the functions of the impact site to the mitigation site, maintenance, monitoring, estimated cost, construction sequence and techniques. For proposed artificial reefs, indicate the water depth, depth of sand overlying bedrock, and proposed relief and materials (type, size and shape).

25. Provide an analysis of available alternatives to the proposed coastal construction, pursuant to Subsection 62B-41.005(1)(e), F.A.C. that would minimize adverse impacts to the coastal system. Discuss any related effects on the coastal system.

26. Provide the required permit fee, as set forth in Rule 62B-49.006, F.A.C. In order tocalculate the fee, please provide the following: the acreage of proposed filling seaward of the MHW line; the acreage of proposed dredging; the cubic yardage of fill to be placed on the beach (above and below the MHW line); the cubic yardage of material to be dredged from an inlet and then placed either in an upland or offshore disposal site; the length of rigid coastal structures (groins, breakwaters, jetties, seawalls and revetments); and the number of inlet-related structures (new channels, sand traps and bypassing plants).

Note: Additional information may be required by statute or rule, or if found by staff to be reasonably necessary for proper evaluation of the application under applicable statutory and rule criteria.

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❶¡..Describe.in.general.terms.the.proposed.activity.including.any.phased.activities¡

The beach restoration project consists of an approximate 4.5-mile stretch of chronically eroded beach. This erosion has been ongoing for a few decades and has resulted in the armoring of certain stretches of shoreline to protect the island’s evacuation route and existing upland properties.

a) Type of project (e.g., restoration, nourishment, bypassing, groins, maintenance dredging, jetty rehabilitation);

The project aims to improve the island’s resiliency by improving the existing beach conditions. The restoration will include careful use of fill placement along certain stretches of the beach. Erosion control structures will be utilized along sections with and without fill placement to aid in the retainment of the sand on the beach along the filled areas and offer protection from waves to areas without fill placement.

b) Number of events requested (once or as-needed);

The erosion control structures will be constructed once and be restored if needed after a major storm. The fill placement event will be constructed as needed but will have a construction lifespan of 5 years.

c) Fill template (lengths, dune crest and berm widths, slopes, and corresponding elevations in North American Vertical Datum (NAVD) down to toe of fill);

d) Type/number/dimensions/elevations of structures;

The sections that will receive nourishment span from R-81 to R-88 and R-91R-108, a total length of approximately 28,530 ft (8696 m). The fill template will vary depending on existing shoreline conditions, the inclusion of erosion control structures along certain stretches and the presence of nearshore hardbottom.

Generally, the berm will be constructed at an elevation of 6 ft (1.8 m) NAVD, sloping down to 5 ft (1.5 m) NAVD.

From the berm, the rest of the fill will be sloped at 10:1 to the toe of the fill. The total fill volume is approximately 1,000,000 cy (764,555 m3).

There are three distinct erosion control structures being proposed: Groins from R-84.5 to R-87.75 and R-90.5 to R-93.5, offshore breakwaters from R-88 to R-90.5, and an array of groins in between longer groins with reef balls on the seaward end. The structure template for the groins and the breakwaters consists of structures with a crest width of 15 ft (4.6 m), with the groins at an elevation of 0 ft NAVD at the base and 3 ft NAVD (0.9 m) at the top. The groins with the attached reef balls consist of goliath sized reef balls with a top elevation of -2 ft NAVD (-0.6 m). Goliath reef balls generally have a width of 3 ft at the top, 7 ft at the base and have a height of 6

ft. In total, there will be 33 groins, 6 offshore breakwaters, and 6 groins with attached reef balls.

e) Dredge/equipment type and/or construction method;

The construction equipment for the erosion control structures will include barges, cranes, and the structure material. The beach fill will be constructed via truck haul from a DEP approved upland mine.

f) Borrow Areas (indicate if it is an offshore site, an ebb shoal or a flood shoal; specify maximum allowable dredge depths; indicate the vertical datum NAVD, MLW, MLLW, etc.;

and maximum depth);

Sand will be sourced from upland mines, Stewert Mine and Vulcan Mine, and will be transported to the site via truck haul.

g) Staging areas, stock piling, access corridors;

Staging areas, access corridors and stock piling locations are shown in the permit plans under Item 14.

h) Acreage of direct and secondary impacts for each impacted community type;

There are no known seagrass habitat in the project area. There are several exposed hardbottom habitats which were mapped in December 2021 by CSA Ocean Sciences. The use of erosion control structures only, fill only, and the combined use of both were designed in order to avoid secondary impacts to hardbottom environments when they are present near the shoreline. The mapped hardbottom is shown in the permit plans.

i) Acreage of mitigation for each type of community.

Mitigation.acreage.will.be.added.at.a.later.time¡

❷¡.Describe.the.purpose.and.need.of.the.proposed.activity.including.any.public.benefits¡.Include.a.detailed.

statement.describing.the.existing.and.proposed.upland.uses.and.activities¡

Casey Key is a narrow island with dense development and one evacuation road for the entire island. The existing conditions along this project area includes chronically eroded beaches with some stretches with minimal to no existing dry beach area. In response to this ongoing erosion, the coast was armored with riprap multiple decades ago as a protective measure to the upland. The sand seaward of the riprap has steadily eroded, leaving many sections of this coast with rocky shorelines and no wide beach to aid in energy dissipation. Additionally, this area of Casey Key was heavily impacted by Hurricane Milton in 2024, which made landfall in Siesta Key, ?? ft to the north. Hurricane Milton heavily scoured and damaged Casey Key road, the evacuation road to the entire island. Some homes along this coast were severely damaged during the passage of Hurricane Milton.

a) Whether.the.activity.will.adversely.affect.the.public.health?.safety?.or.welfare.or.the.property.of.others·

The nourishment and erosion control structures are intended to restore the beach to more ideal conditions, including a wider beach with an elevated berm. The erosion control structures are intended to aid in the retention of the sand in the area and prolong the nourishment life. The offshore breakwaters are intended to dissipate the incoming wave energy to the shoreline, which aids in the protection of upland development and can reduce the erosion of the sand due to large waves. Public health and safety will not be affected.

Residential properties will benefit from the beach project in terms of storm protection.

b) Whether.the.activity.will.adversely.affect.the.conservation.of.fish.and.wildlife?.including.

endangered.or.threatened.species?.or.their.habitats·

Casey Key is considered a high-density marine turtle nesting site according to Florida Fish and Wildlife Commission (FWC). The current state of most of the coastal stretch has narrow beaches, limited elevated beaches above the tidal range, and rocky shorelines due to the shoreline armoring, making marine nests vulnerable to wash out. The nesting turtle is also vulnerable to being trapped in the armored shoreline. The proposed project will aid in hatchling successes due to the availability of nesting sites with higher beach elevations for the nesting turtle to lay her eggs. The presence of the groins with the attached reef balls will attract diverse species and aid in boosting nearshore ecosystems that were otherwise not present.

The project will limit the use of beach fill in areas that contain hardbottom resources near the shoreline. One stretch of the project area, from R-88 to R-91 will not place any fill on the beach and instead will only construct offshore breakwaters. This will be done so that no infilling will occur above the hardbottom environments.

c) Whether.the.activity.will.adversely.affect.navigation.or.the.flow.of.water.or.cause.harmful.erosion.or.

shoaling·

The project will not affect navigation. The project will only consist of nearshore work.

d) Whether.the.activity.will.adversely.affect.the.fishing.or.recreational.values.or.marine.

productivity.in.the.vicinity.of.the.activity·

The project will not adversely affect fishing, recreation, or marine productivity.

e) Whether.the.activity.will.be.of.a.temporary.or.permanent.nature·

The structures will be permanent. The fill will be temporary as the local erosion rate alters the shoreline until the beach can be renourished.

f) Whether.the.activity.will.adversely.affect.or.will.enhance.significant.historical.and.

archaeological.resources.under.the.provisions.of.Section.8❷❸¡6❷7?.F¡S¡·.and

The activity will not affect any significant historical or archaeological resources. There are no known archaeological sites within the project bounds. No dredging is proposed within the project area.

g) The current condition and relative value of functions being performed by areas affected by the proposed activity.

The current condition of the project area is chronically eroded with very minimal beach width or elevation.

Additionally, Hurricane Milton made landfall in Siesta Key, just north of Casey Key and impacted its beaches and main road. Hurricane Milton reopened Midnight Pass which had been, at the north endpoint of this project area, which has caused further concerns to the properties in the newly opened inlet’s vicinity.

An economic analysis of the project relative to the project area is presented in the Appendices, determining the relative value of the project area.

INFORMATION FOR ASSESSMENT OF SOVEREIGNTY SUBMERGED LANDS APPLICATION:

10. the applicant is not a government entity: Satisfactory evidence demonstrating that the applicant has sufficient control and interest in the riparian upland property, as described in Subsection 18-21.004(3)(b), F.A.C. If the applicant is not the property owner, then authorization from the property owner for such use must be provided.

The applicant is Sarasota County.

11. The information in this item is only required if you are applying for a sovereignty submerged lands easement or lease: A list of the names and addresses of owners of all riparian property within 1,000 feet (and within a 500 feet radius) of the proposed sovereignty submerged lands easement or lease site from the latest county tax roll. If the property is under cooperative or condominium ownership, the name and mailing address of the cooperative or condominium association will be adequate. This would not apply to off-shore leases or easements that are not located within 1,000 feet of the shoreline.

Addresses.will.be.listed.at.a.later.date¡

12. The information in this item is only required if you are applying for a sovereignty submerged lands easement or lease: A legal property description and acreage of any sovereign submerged land that would be encompassed by the requested lease or easement, plus a survey prepared, signed and sealed by a person properly licensed by the Florida State Board of Land Surveyors

A.sovereign.submerged.lands.assessment.will.be.provided.at.a.later.date¡

13. topographic and bathymetric survey drawings of the proposed project site(s), including profiles and a contour map that reflect conditions within the past six (6) months, in accordance with Subsection 62B-41.008(1)(e), F.A.C. Drawings shall meet the State’s minimum technical standards and shall be signed and sealed by the professional surveyor, duly registered pursuant to Chapter 472, F.S., who performed the survey. This item may be included in item 14 (permit drawings).

Attached as Item 13 are signed and sealed drawings incorporating the survey data noted on the plans under Item 14. The surveys were conducted by Park Coastal Surveying, who are registered professional surveyors in the state of Florida.

15. A proposed construction schedule

The proposed construction will typically be planned between November 1st and April 30th to remain outside of the marine turtle nesting season. When feasible, the work will also be scheduled prior to February 15th to avoid shorebird nesting season. Should an emergency arise requiring sand placement for immediate protection to the upland and sufficient sea turtle nesting data is available along with shorebird nesting data to support sand placement during the respective nesting seasons, then the applicant may request authority to place sand during those time periods with required protocols.

16. Permit applications for excavation or fill activities shall include the following detailed information concerning the material to be excavated and the existing material at the beach fill site:

All sand for this project shall be from an approved upland sand mine with sand meeting the standards set forth in Rule 62B-41.007, F.A.C. There are no borrow areas designed as part of this project. A QA/QC plan meeting Department standard for use of an upland sand mine is provided as part of this application.

17. Analysis of the compatibility of the fill material with respect to the existing sediment at the placement site. The analysis should include all relevant computations, the overfill ratios, and superimposed graphs of the cumulative grain-size distribution and the frequency distribution of the fill material over the data for the existing sediment at the placement site.

Provide computations of borrow area volume and composite fill material characteristics (mean grain size and sorting, percent carbonate content) in an electronic spreadsheet

Sand to be placed as part of this project will comply with the beach fill sand quality standards in Chapter 62B-41, Florida Administrative Code, and will be obtained from sand mines recognized by DEP as suitable sand sources for beach quality sand. Sediment analysis of the sand from the inland sand mine will be provided to ensure that the sand is compliant with Rule 62B-41.007, F.A.C. and the permit drawings.

18. Using an established natural community classification system, describe each natural community within the area of influence of the proposed activity. This includes wetlands, mangroves, seagrasses, hardbottom or any other coastal resource, within a minimum of 1,000 feet in both shore parallel directions of the project boundary. Include an aerial map of these communities outlined, as well as:

The Casey Key Hardbottom Reconnaissance Survey Report completed by CSA Ocean Sciences in 2021 is attached in the Appendices.

19. Provide detailed information on season of occurrence, density, and location of threatened or endangered species whose range occurs within the proposed activity. Include any results of available wildlife surveys that have been conducted on the site.

Nesting data for sea turtle nesting and shorebird nesting data is available through FWC. The project will restore habitat to conditions that will reduce shorebird and marine turtle nest vulnerability.

20. Discuss any proposed methods to reduce potential impacts to threatened and endangered species, including lighting ordinances (outline procedures), avoidance (e.g., working outside of season), and minimization measures.

The proposed construction will occur between November 1st and April 30th to remain outside the sea turtle nesting season and avoid potential impacts to sea turtles. Additionally, when feasible, the work will also be scheduled for completion prior to February 15th to remain outside the shorebird nesting season.

21. Provide an analysis of the expected effect of the proposed activity on the coastal system including but not limited to: Analysis of the expected physical effect of the proposed activity on the existing coastal conditions and natural shore and inlet processes. The analysis should include a quantitative description of the existing coastal system, the performance objectives of the proposed activity, the design parameters and assumptions, relevant computations, validation of the results and the data used in the analysis.

The project will restore the shoreline to more natural conditions in terms of the proposed beach fill. The inclusion of erosion control structures will aid in the retention of sand along the shoreline where a less amount of beach fill is proposed. The structures will be designed to allow for continuous longshore sediment transport pathways, unlike the existing rock revetments in place currently. The Casey Key Feasibility Report and Casey Key Alternatives Analysis of the Proposed Design is attached in the appendices, and presents a quantitative analysis of both the existing coastal system and the proposed project.

22. Identify any areas within any proposed mixing zone(s) that contain significant submerged resources, such as hardbottom, seagrasses or mangroves. Explain why the size of the proposed mixing zone is the minimum necessary to meet water quality standards and provide justification for that size. If the project is in or adjacent to an OFW and an antidegradation variance is proposed, please provide the proposed NTU variability above background, as well as the justification (measurements of natural background variability measured within a tidal cycle). Describe the location and details of the erosion, sediment and turbidity control measures to be implemented during each phase of construction and all other measures used to minimize adverse effects to water quality. If a mixing zone variance is proposed, please provide a narrative description and graphic representation of the mixing zone.

The Casey Key Hardbottom Reconnaissance Survey Report completed by CSA Ocean Sciences in 2021 is attached in the Appendices.

23. Provide a written statement providing the necessity and justification for the potential impacts to the coastal ecosystem that may be caused by the proposed coastal construction.

Provide a physical monitoring plan, pursuant to Rule 62B-41.005, F.A.C

A.physical.monitoring.plan.will.be.provided.at.a.later.date¡

24. Provide proposed biological monitoring plans that will provide reasonable assurance that the predicted level of direct and secondary impact to adjacent biological resources, such as hardbottom and / or seagrasses was correct. Additionally, if impacts to natural resources are anticipated, a narrative description of any proposed biological mitigation plans, pursuant to Rule 62-345, F.A.C., including purpose, a comparison between the functions of the impact site to the mitigation site, maintenance, monitoring, estimated cost, construction sequence and techniques. For proposed artificial reefs, indicate the water depth, depth of sand overlying bedrock, and proposed relief and materials (type, size and shape).

A.biological.monitoring.plan.will.be.provided.at.a.later.date¡

25. Provide an analysis of available alternatives to the proposed coastal construction, pursuant to Subsection 62B-41.005(1)(e), F.A.C. that would minimize adverse impacts to the coastal system. Discuss any related effects on the coastal system.

An alternatives analysis is presented in the Appendices.

26. Provide the required permit fee, as set forth in Rule 62B-49.006, F.A.C. In order to calculate the fee, please provide the following: the acreage of proposed filling seaward of the MHW line; the acreage of proposed dredging; the cubic yardage of fill to be placed on the beach (above and below the MHW line); the cubic yardage of material to be dredged from an inlet and then placed either in an upland or offshore disposal site; the length of rigid coastal structures (groins, breakwaters, jetties, seawalls and revetments); and the number of inlet-related structures (new channels, sand traps and bypassing plants).

2- Permit Plans

SCALE: 1" = 5000'

500025000

NOTES:

1. AERIAL PHOTOGRAPH DATED 2022 COURTESY OF SARASOTA COUNTY GIS.

2. COORDINATES SHOWN ARE IN FEET BASED ON THE NORTH AMERICAN DATUM OF 1983, FLORIDA WEST ZONE (NAD83).

3. ELEVATIONS SHOWN ARE IN FEET BASED ON THE NORTH AMERICAN VERTICAL DATUM OF 1988 (NAVD88).

SHEET INDEX

CASEY KEY

SHORELINE RESILIENCY PROJECT

RELATIONSHIP BETWEEN NAVD 1988, NGVD

1929, MEAN HIGH WATER, AND MEAN LOW &

MEAN LOWER LOW WATER TIDAL DATUM.

NGVD/NAVD CONVERSION DERIVED FROM

CORPSCON. MHW, MLW, AND MLLW BASED ON

LABINS TIDE STATION 8725858, VENICE, GULF OF

MEXICO, TIDAL EPOCH 1983-2001.

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