Agenda 06/10/2014 Item #11B 6/10/2014 11.B.
EXECUTIVE SUMMARY
■,
Recommendation to approve and authorize the Pelican Bay Services Division to
prepare, sign and submit a Nationwide Permit for the maintenance dredging of
Clam Pass due to concerns about the critical condition of the Pass, approve
necessary budget amendments, and make a finding that this project promotes
tourism.
OBJECTIVE: For the Board of County Commissioners to approve and authorize the
Pelican Bay Services Division to prepare, sign and submit a Nationwide Permit for the
maintenance dredging of Clam Pass due to concerns about the critical condition of the
Pass.
CONSIDERATIONS:
On December 11,2012,the Board of County Commissioners clarified and reaffirmed that
the Pelican Bay Services Division has the sole responsibility for advising the County on
dredging and maintaining Clam Pass and will manage such activities for the County.
(Ordinance No. 02-27, as amended). Periodic hydraulic and physical monitoring of the
Clam Pass has been undertaken since the March 2013 dredging to monitor the inlet
dynamics and its stability. The data and analysis of the 12 month post dredging
conditions indicate shoaling and flow restriction has occurred in the interior portion of
the pass to such an extent as to threaten the inlet stability. Due to concerns of this critical
condition, PBSD consulting engineer and biologist has recommended to the PBSD
n Advisory Board to authorize maintenance dredging of the pass.
ADVISORY COMMITTEE RECOMMENDATIONS:
On May 7, 2014, the PBSD Advisory Board voted to prepare for submittal of a permit
application that would allow for maintenance dredging of Clam Pass to include areas not
eligible to be dredged in the emergency reopening that occurred in March 2013. The
proposed maintenance project is intended for dredging the interior sections of the Pass
(Sections B & C of the dredging template previously dredged). In order to cover all
contingencies that may be in place by the time the maintenance dredging permit has been
reviewed and approved, which could be two months from now, the permit application
will include dredging all three Sections with a final determination of the actual dredge
area made at the time of bidding for the project. (See attached exhibit).
On May 29, 2014 Administrator Neil Dorrill appeared before the Tourist Development
Council requesting approval of the maintenance dredging for Clam Pass. The board
voted unanimously to approve funding of$34,500 for the application and design. The
TDC requested that the construction cost(s) be returned to the TDC for a
recommendation.
FISCAL IMPACT: Funding is not presently in place and will require a budget
amendment. The estimated cost for permit& design activities is approximately $35,400
and the construction cost estimate is $343,900. A budget amendment reducing TDC
Beach Renourishment and Pass Maintenance Fund (195) reserves and increasing the
Clam Pass Dredging project budget by a total of$378,400 is required. The breakdown of
project activities is as follows:
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6/10/2014 11.B.
Activity Amount Firm
Prepare & Submit Application $ 18,100 THA/H&M
Coordinate with USFWS (if necessary) $ 1,400 THA
Design&Plans $ 15,000 H&M
Construction(Engineer's Cost Estimate attached) $343.900 TBD
Total $378,400
LEGAL CONSIDERATIONS: Ordinance No. 92-60, as amended, provides that pass
and inlet maintenance is an authorized expenditure for tourist development taxes. The
Board of County Commissioners must make a finding that this expenditure of tourist
development taxes promotes tourism. The Board may accept the recommendation of the
TDC or the Board may make its own finding and recommendation. This item has been
approved as to form and legality and requires majority vote for approval. -CMG.
GROWTH MANAGEMENT IMPACT: None
RECOMMENDATION: For the Board of County Commissioners to approve and
authorize the Pelican Bay Services Division, through its Administrator, to prepare, sign
and submit a Nationwide Permit for the maintenance dredging of Clam Pass due to
concerns about the critical condition of the Pass, approve necessary budget amendments
and make a finding that project expenditure promotes tourism.
Prepared by: Neil Dorrill,PBSD Administrator
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6/10/2014 11 .B.
COLLIER COUNTY
Board of County Commissioners
Item Number: 11.11.B.
Item Summary: Recommendation to approve and authorize the Pelican Bay Services
Division to prepare, sign and submit a Nationwide Permit for the maintenance dredging of Clam
Pass due to concerns about the critical condition of the Pass, approve necessary budget
amendments and make a finding that this project promotes tourism. (Neil Dorrill, Pelican Bay
Services Division Administrator)
Meeting Date: 5/27/2014
Prepared By
Name: BrockMaryJo
Title: Executive Secretary to County Manager, County Managers Office
5/20/2014 8:55:13 AM
�-. Submitted by
Title: Executive Secretary to County Manager, County Managers Office
Name: BrockMaryJo
5/20/2014 8:55:14 AM
Approved By
Name: OchsLeo
Title: County Manager, County Managers Office
Date: 5/20/2014 3:51:35 PM
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6/10/2014 11 .B.
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T T ^ 6/10/2014 11 .B.
H V MIS 1 T` N 5679 STRAND COURT
MOORE NAPLES,FLORIDA 34110
"4" 4 FAX 239 594 2025
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ENGINEERS PHONE:239 594 2021
COASTAL
: I ENGINEERING DESIGN
AND PERMITTING
May 19,2014
Sent Via E-mail
MEMORANDUM:
To: Neil Dorrill
Administrator, Pelican Bay Services Division
From: Mohamed Dabees, Ph.D., P.E.
Regarding: Opinion of Probable Costs for 2014 Clam Pass Maintenance Dredging
This memo provides an opinion of probable construction costs for the proposed 2014 maintenance
dredging of Clam Pass. The attached bid schedule provides itemized cost estimates with a
recommended construction cost budget of $350,000. This estimate is based on previous costs of
maintenance of Clam Pass with adjustments for the Consumer Price Index. We have included a 15%
contingency to allow for additional shoaling that may occur between when the condition survey was
done and the start of dredging.
The proposed dredging template includes the inlet channel (Section A), and interior flood shoal Sections
B and C.The proposed dredging includes the interior part of section C which was not dredged during the
previous 2013 dredging. The referenced permit plans indicate the dredging cross-sections and volumes
as documented by the March 2014 survey. The following table provides the breakdown of the available
material to be dredged out of each the three sections of the dredge template based on the survey of
March 2014.
Table 1. Dredge quantities for each template section based on March 2014 survey
Template Section Volume
(CY)
Section A 2,800
Section B 4,500
Section C 5,700
Total i 13,000
The means and methods of dredging will be up to the contractor and may involve hydraulic, mechanical
or a combination of methods as determined by the contractor. The permit review will determine
construction limitations for this interim maintenance dredging project. Once those limitations are
determined, plans and specifications will be finalized for bidding this project.
Attachment
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6/10/2014 11.B.
COLLIER COUNTY
BID SCHEDULE WITH PRELIMINARY COST ESTIMATE
COLLIER COUNTY
CLAM PASS MAINTENANCE DREDGING-2014
May 19,2014 COST ESTIMATE
HUMISTON AND MOORE ENGINEERS FILE NO.13-078
Estimated Unit Total
Item Quantity Unit Cost Cost
1. Mobilization and demobilization 1 Job L.S. $ 75.000
2. Survey control and progress surveys 1 Job L.S. $ 10,000
3. Dredging of Sections A,B,and C 13,000 cy $_14_ $182,000
beach fill placement and grading
4. Turbidity monitoring 1 Job L.S. $ 10,000
5. Removal of non-beach compatible
material resulting from
Sections A,B&C1 100 cy $ 30 $ 3,000
6. Final grading&tilling 1 Job L.S. $ 8,000
7. Restoration of construction access
and staging area 1 Job L.S $ 5,000
8. Payment and 1 Job L.S. $ 6,000
Performance Bond
9. Contingency 15 % L.S. $ 44,850
Total Base Bid $343.850
1 From within the allowable dredge cut
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