Agenda 08/12/2025 Item #16F 1 (Expenditure of Tourist Development Tax funds for 2025 Clam Pass maintenance dredging)8/12/2025
Item # 16.F.1
ID# 2025-2254
Executive Summary
Recommendation to authorize expenditure of Tourist Development Tax funds for 2025 Clam Pass maintenance dredging
and sand reclamation at Clam Pass Park in the amount of $434,758.50 for construction, engineering services and
surveying, and environmental monitoring services and oversight, and make a finding that this item promotes tourism.
OBJECTIVE: To restore the Clam Pass inlet and adjacent beaches to pre-2024 tropical season conditions.
CONSIDERATIONS:
Collier County Ordinance No. 2002-27, as amended, established the Pelican Bay Municipal Service Taxing and Benefit
Unit for the purpose of providing street lighting, water management, beach renourishment, ambient noise management,
extraordinary law enforcement service and beautification, including but not limited to beautification of recreation
facilities, sidewalk, street and median areas, identification markers, and maintenance of conservation or preserve areas.
Pelican Bay Services Division (PBSD) is solely responsible for advising the County on dredging and maintaining Clam
Pass and manages such activities for the County.
Clam Pass is a small dynamic inlet in Collier County that supports tidal flow to the wetland preserve of the Clam Bay
Natural Resource Protection Area (NRPA). Maintenance dredging is essential to the health of the system because of the
relatively small tidal prism for Clam Bay which is typically at a critical balance between tidal energy and littoral process
at the inlet channel. The hydraulic and physical conditions of the Clam Bay system are monitored in real-time to include
continuous water level and tidal data collection at 4 locations.
The 2025 maintenance dredging of Clam Pass is planned to restore the inlet and adjacent beaches to pre 2024 tropical
season conditions. The inlet and adjacent beaches at Clam Pass Park and Pelican Bay have been impacted by the active
tropical season of 2024 including Tropical storm Debby and major Hurricanes Helene and Milton. The impacts included
shoaling of the inlet, adjacent beach erosion, dune over wash and degradation of dune vegetation and mangrove areas on
the landward side of the dunes. The project will include excavation of the shoaled areas within the inlet authorized
template and sand placement on the adjacent beaches. The project will also include dune restoration along the Clam Pass
Park beach where storm impacts over washed sand into the mangrove wetland along a 2000 feet segment of the park
beach.
The project is planned to start following the 2025 turtle nesting season in November 2025.
On May 20, 2025, PBSD staff requested quotes from the two pre-qualified vendors currently under contract with the
County under Agreement No. 21-7885, “Beach Maintenance Related Activities.” Earth Tech Enterprises submitted a
quote, which was received and opened by staff on June 10, 2025 as summarized below.
VENDOR QUOTATION
Earth Tech Enterprises,
Inc.
$ 315,000.00
Kelly Brothers, Inc. No Response
Earth Tech Enterprises quote is responsive and responsible, and the Contractor's quote of $315,000.00 is reasonable and
consistent with the Engineer’s Opinion of Probable Cost in the amount of $340,000.00.
In addition to construction, under existing County contract 18-7432-CZ, Humiston & Moore Engineers will provide
professional engineering services to include pre and post-construction surveys, data analysis, preparation of plans and
technical specifications, coordination with regulatory agencies for compliance purposes, as well as related field services
at a negotiated lump sum cost of $49,715.00.00 Under existing County Contract 18-7432-EV, Earth Tech
Environmental will provide the necessary environmental monitoring services to include turbidity monitoring and other
environmental oversight at a cost of $30,520.00. Estimated costs for the project are as follows:
Task Amount
Construction (Earth Tech Enterprises, Inc. Contract 21-7885) $ 315,000.00
Engineering and Surveying (Humiston & Moore Engineers Contract 18-7432-CZ) $ 49,715.00
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8/12/2025
Item # 16.F.1
ID# 2025-2254
Environmental Monitoring and Oversight (Earth Tech Environmental Contract 18-7432-EV) $ 30,520.00
SUBTOTAL $ 395,235.00
Contingency 10% $ 39,523.50
TOTAL $ 434,758.50
The work will be awarded via Purchase Order following a recommendation from the Tourist Development Council and
Board of County Commissioners.
ADVISORY COMMITTEE RECOMMENDATION: This item was presented to the Tourist Development Council
on July 15, 2025 and the TDC voted unanimously to approve the recommendation to the Board.
FISCAL IMPACT: The total estimated cost is $434,758.50. $557,703.99 is available in Fund 1105 (TDC Beach
Renour) Cost Center 183901 (Pelican Bay Srvc), Project 88032.1.
LEGAL CONSIDERATIONS: This item is approved as to form and legality and requires majority vote for approval. –
CMG
RECOMMENDATIONS: Recommendation to authorize expenditure of Tourist Development Tax funds for 2025
Clam Pass maintenance dredging and sand reclamation at Clam Pass Park in the amount of $434,758.50 for
construction, engineering services and surveying, and environmental monitoring services and oversight, and make a
finding that this item promotes tourism.
PREPARED BY: Lisa Jacob, Project Manager
ATTACHMENTS:
1. 2025_Clam_Pass_opinion of cost
2. 21-7885 Earth Tech Enterprises Quote Clam Pass Maintenance Dredging
3. HM Proposal 2025 Maintenance Excavation Clam Pass
4. 18-7432-EV Earth Tech Environmental 2025 Clam Pass Maintenance Dredging proposal
5. 2025 Clam-Pass-Maintenance Engineering Plans-signed
This item is consistent with the Collier County strategic plan objective to prepare for the impacts of natural disasters on our critical
infrastructure and natural resources.
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OPINION OF PROBABLE COST
2025 Clam Pass Dredging
Item Description
Unit of
Measure Multiplier
Unit
Price Total
1 Mobilization & Demobilization Lump Sum 1 $50,000 $50,000
2 Excavation and Disposal
Placement of Sand Cubic Yard 12,000 cy $15 $180,000
3
South Inlet Bank Grading
(includes excavation of and
placement on adjacent south fill
area)
Lump Sum 1 $10,000 $10,000
4
North Bank Grading
(Grading to design template
following infilling of the
channel meander on the north
inlet bank)
Lump Sum 1 $20,000 $20,000
5
Excavation of over wash and
sand placement on dune for area
between R-42.5 and R-44.5
(Clam Pass and Naples Cay)
approximately 2,000 Linear Feet
Lump Sum 1 $80,000 $80,000
Total $340,000
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WORK ORDER/ PURCHASE ORDER#
CONTRACT# 18-7432CZ
Proposal Dated: May 19th, 2025
____
Humiston & Moore Engineers (H&M) is pleased to provide this scope of work to Collier County via the
Pelican Bays Services Division (PBSD).
The purpose of this scope is to provide professional services for OPTION 1 of the Maintenance
excavation and grading of Clam Pass and Post Storm Dune recovery along Clam Pass Beach Park.
Services include survey work to layout the work area, pre/post construction surveys, data analysis
and preparation of plans and technical specifications, coordination with DEP for the Notice to
Proceed, field observation and post construction compliance services. The following breakdown is
proposed as a Negotiated Lump Sum to be completed within 180 days of receipt of the Purchase
Order and Letter of Notice to Proceed from Collier County.
Rates $177.00 $115.00 $103.00 Total
Senior
Engineer
Scientist /
Geologist
Senior
Technician
Data Analysis and Work Plan 8 10 6 $3,184.00
Bid Process and Meetings 12 6 4 $3,226.00
Agencies Coordination 8 10 8 $3,390.00
Field Observations and Post
Construction Compliance Items
60 45 40 $19,915.00
Survey Work: Park Coastal
Surveying – Layout project
control, pre and post
construction surveys
$20,000.00
TOTAL: $49,715.00
Deliverable: Notice to Proceed and Post construction as built provided
Total amount of Work Order:………………$49,715.00
__________________________________ May 19, 2025
Mohamed A. Dabees, P.E. Vice President Date
Humiston & Moore Engineers
5679 Strand Court
Naples, FL 34110
239-594-2021 – Voice
239-594-2025 - Fax
Page 3116 of 3949
FROM
Jeremy
Sterk
Earth
Tech
Environmental
10600 Jolea Avenue
Bonita Springs, FL 34135
www.eteflorida.com
PHONE
239-304-0030
FOR
Pelican
Bay
Services
Division
TO
Lisa Jacob
EMAIL
Lisa.Jacob@colliercountyfl.gov
ADDRESS
801 Laurel Oak Drive
Suite 302
Naples
FL 34108
COPY TO
Karin Herrmann
PROPOSAL NUMBER
2819
DATE
May 16, 2025
EXPIRY DATE
December 15, 2025 at 2:00 PM
2025
Clam
Pass
Maintenance
Dredging
Clam
Pass
Maintenance
Dredging
2025-
Full
Dredging
General consulting for the Clam Pass maintenance dredging activity. The duration of this work is 365 days under Contract 18-
7432 (Environmental Engineering).
Thank
you
for
the
opportunity.
Earth Tech Environmental, LLC (ETE) appreciates the opportunity to provide you with the following agreement for professional
environmental services.
Scope
of
Professional
Services:
ETE is proposing the following Scope of Services for this project:
Page 3117 of 3949
Task
1:
Turbidity
Monitoring
(Timed
Estimate):
Turbidity Monitoring Per FDEP Permit Requirements:
ETE will provide turbidity for the subject project as outlined in the approved FDEP permit. Monitoring
will be conducted 3 times a day, at least 4 hours apart during daylight hours, and at any other time that
there is a likelihood of an exceedance of the turbidity standard, during all dredging and sand placement
operations. During each sample event, background and compliance samples will be taken at the dredge
and fill sites. ETE will email datasheets and corresponding GIS maps to the client for FDEP required
weekly summaries. This task assumes 15 dredging days. Pricing includes utilization of ETE's boat and
other necessary equipment. Hourly rate as approved in the environmental engineering contract: Billed
according to the approved hourly rate schedule based on the staff member(s) involved- either the
environmental specialist rate of $109 per hour or the senior environmental specialist rate of $120 per
hour.
109.00
x 120
13,080.00
Task
2:
Shorebird
Monitoring
(Timed
Estimate):
ETE will provide an FWC approved bird monitor to assist with minimization of impacts to birds at the
beach fill area. The monitor will survey the beach fill area each morning. Daily logs would be collated on
a weekly basis and provided to the contractor. Monitoring is required between April 1st and August
31st. This task may not be necessary if dredging is completed outside this timeframe.
Billed according to the approved hourly rate schedule based on the staff member(s) involved- either the
environmental specialist rate of $109 per hour or the senior environmental specialist rate of $120 per
hour.
109.00
x 35
3,815.00
Task
3:
Gopher
Tortoise
Surveys
per
FWC
Requirements
(Timed
Estimate):
Earth Tech Environmental will conduct a burrow survey within the work areas for gopher tortoises. This
task includes performing pedestrian transects within the survey areas. The distance between the
transects will be established to cover 100% of each area surveyed. Locations of potentially occupied
and abandoned burrows will be flagged in the field and GPS located. Billed according to the approved
hourly rate schedule based on the staff member(s) involved- either the environmental specialist rate of
$109 per hour or the senior environmental specialist rate of $120 per hour.
109.00
x 50
5,450.00
Task
4:
Meetings
&
Coordination
(Timed
Estimate):
Environmental support and oversight includes attending meetings with Client, Engineers, Contractors,
and Agency Representatives as necessary. Includes time for escorting equipment, pre-construction
meetings, and oversight.
Billed according to the approved hourly rate schedule based on the staff member(s) involved- either the
environmental specialist rate of $109 per hour or the senior environmental specialist rate of $120 per
hour.
109.00
x 75
8,175.00
Total $30,520.00
We
appreciate
your
business!
Thank you for allowing Earth Tech Environmental LLC to provide you and your community with environmental services. This
proposal can be authorized by digitally signing below. You can also print a PDF version of this agreement, sign, and return a copy
to us.
Page 3118 of 3949
It was a pleasure to work with Earth
Tech Environmental. Jeremy was very
responsive to our request for a
proposal and provided a professional
report addressing our needs within a
short period of time. I am looking
forward…
by
Luis
Bolivar
I had the pleasure of working with Earth
Tech Environmental on a recent real
estate development project, and I
couldn't be more impressed with their
expertise and professionalism. They
provided invaluable assistance
navigating…
by
David
Duvoisin
The Earth Tech staff was professional,
and knowledgeable. Environmental
monitors work with our crew
seamlessly. We look forward to the next
project with Earth Tech !
by
Devon
Carlock
Payment
Options:
ETE accepts cash, check, or credit cards for services. A 3.8 % convenience fee is added to all credit card transactions.
Reviews See all reviews
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