Agenda 03/14/2017 Item #16A2003/14/2017
EXECUTIVE SUMMARY
Recommendation to approve Change Order No. 3 modifications to the contract with Hannula
Landscaping and Irrigation, Inc., for landscape and irrigation installation associated with ITB No.
16-6607, Collier Blvd. Highway Beautification and authorize the necessary budget amendment
(Project No. 60149).
OBJECTIVE: To approve Change Order No. 3 to the contract with Hannula Landscaping and Irrigation,
Inc., for modifications to the landscape and irrigation installation that is associated with ITB No. 16-6607,
Collier Blvd. Highway Beautification, for the installation of median irrigation and landscaping
improvements to a portion of State Road 951 (Collier Blvd.).
CONSIDERATIONS: On September 9, 2014, Agenda Item 10B, the Collier County Board of County
Commissioners (Board) approved the submission for a Florida Highway Beautification Council grant
application for median irrigation and landscaping installation for State Road 951 (Collier Boulevard, 0.6
mile project length) between Fiddler’s Creek to the unimproved median north of Mainsail Drive. On
October 27, 2015, Agenda Item 16A12, the Board approved the Memorandum of Agreement (MOA) with
the Florida Department of Transportation (FDOT) for the landscape and irrigation installation. On
January 22, 2016, FDOT approved the time extension of the project completion date to June 30, 2017.
The time extension was requested due to delays in the initial design, bidding and awarding of the contract.
On July 12, 2016, Agenda Item 16A15, the ITB No. 16-6607 was awarded to Hannula Landscaping and
Irrigation, Inc. in the amount of $152,247.78, of which FDOT will reimburse $100,000 of the installation
costs.
On December 13, 2016, Change Order No. 1, Agenda Item 16E9, was approved by the Board removing
the water meter installation cost from the bid and allowing this interdepartmental expense to be paid in
the amount of $9,600. Other changes included: increasing the main casing size that was incorrectly
specified, changing the valve type, and increasing the number of bubblers to meet the plant material
requirements. Change Order No. 1 increased the contract by $752.00 or 0.49 percent.
On January 24, 2017, Agenda Item 16A5, Change Order No. 2, was approved by the Board adding
compost in the medians, changing the type of bubbler to a lower flow bubbler, changing a plant material
species, and adding a new detail addressing the water meter connection to the mainline. Change Order
No. 2 increased the contract by $30,194.98 or 20.23 percent.
Change Order No. 3 is to change from a Motorola DC Piccolo irrigation controller to an existing
Motorola AC M irrigation controller to meet the new maintenance standards, which no longer allow the
use of DC Piccolo controllers. This change requires additional wire of various sizes to be added which
includes a 3” directional bore to accommodate the wire bundle and trenching to the existing controller.
Change Order No. 3 increases the contract by $12,550.83 or 6.85 percent.
FISCAL IMPACT: Funds in the amount of $12,550.83 are required to fund the ongoing installation
project. A budget amendment is required to move the funds from the existing unencumbered Growth
Management Department appropriations in Fund (112) Reserves to Landscape Capital Fund (112),
Project 60149.
ADDITION:
$ 22,325.28
$ 3,208.50
$ 958.45
$ 26,492.23
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DEDUCTIONS:
$ 1,675.00
$ 7,560.00
$ 4,706.40
$ 13,941.40
NET CHANGE:
$ 12,550.83
The estimated annual maintenance costs are $25,800 for the additional 0.6 mile project which will be
funded by the Landscape Maintenance fund center upon completion of the construction. The source of
funds is Unincorporated General Fund 111.
GROWTH MANAGEMENT IMPACT: There is no Growth Management Impact associated with this
action.
LEGAL CONSIDERATIONS: This item is approved as to form and legality, and requires majority
vote for Board approval-SRT.
RECOMMENDATION: To approve Change Order No. 3 to the contract with Hannula Landscaping and
Irrigation, Inc., for landscape and irrigation installation modifications associated with ITB No. 16-6607,
Collier Blvd. Highway Beautification, and to authorize the necessary budget amendment (Project 60149).
Prepared By: Pamela Lulich, PLA, Landscape Operations Manager, Road Maintenance Division
ATTACHMENT(S)
1. Change Order 3 with Purchasing Signature (PDF)
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COLLIER COUNTY
Board of County Commissioners
Item Number: 16.A.20
Doc ID: 2697
Item Summary: Recommendation to approve Change Order No. 3 modifications to the contract
with Hannula Landscaping and Irrigation, Inc. for landscape and irrigation installation associated with
ITB No. 16-6607, Collier Blvd. Highway Beautification (Project 60149).
Meeting Date: 03/14/2017
Prepared by:
Title: Manager - Landscape Operations – Growth Management Department
Name: Pamela Lulich
02/05/2017 12:30 PM
Submitted by:
Title: Department Head- Growth Management Dept – Growth Management Department
Name: David Wilkison
02/05/2017 12:30 PM
Approved By:
Review:
Procurement Services Lissett DeLaRosa Level 1 Purchasing Gatekeeper Completed 02/06/2017 10:27 AM
Procurement Services Brenda Brilhart Additional Reviewer Completed 02/07/2017 10:27 AM
Growth Management Department Diane Lynch Level 1 Division Reviewer Completed 02/13/2017 11:24 AM
Procurement Services Allison Kearns Additional Reviewer Completed 02/15/2017 10:43 AM
Capital Project Planning, Impact Fees, and Program Management Gloria Herrera Additional Reviewer Completed 02/15/2017 10:45 AM
Growth Management Department Gene Shue Additional Reviewer Completed 02/15/2017 11:19 AM
Road Maintenance Travis Gossard Additional Reviewer Completed 02/15/2017 2:56 PM
Road Maintenance Melissa Pearson Additional Reviewer Completed 02/15/2017 5:12 PM
Growth Management Department Jeanne Marcella Level 2 Division Administrator Completed 02/21/2017 1:01 PM
Procurement Services Ted Coyman Additional Reviewer Completed 02/22/2017 5:59 PM
County Attorney's Office Scott Teach Level 2 Attorney Review Completed 02/28/2017 4:26 PM
Office of Management and Budget Valerie Fleming Level 3 OMB Gatekeeper Review Completed 03/01/2017 8:46 AM
County Attorney's Office Jeffrey A. Klatzkow Level 3 County Attorney's Office Review Completed 03/01/2017 11:19 AM
Grants Therese Stanley Additional Reviewer Completed 03/03/2017 10:31 AM
Budget and Management Office Mark Isackson Additional Reviewer Completed 03/07/2017 4:10 PM
County Manager's Office Nick Casalanguida Level 4 County Manager Review Completed 03/08/2017 1:13 PM
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Board of County Commissioners MaryJo Brock Meeting Pending 03/14/2017 9:00 AM
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James C. Abney – Irrigation Consultant
Irrigation Consulting, Site Observation, System Auditing & Management
671 100th Avenue N.; Naples, Florida 34108
Office Telephone (239) 304 – 8451; Cellular (239) 692 – 2966
E-mail: James_C_Abney@yahoo.com
Proposed Irrigation Control System Change
DATE: January 12, 2017
TO: Mr. Scott Windham, RLA – Windham Studio.
FROM: James C. Abney, JCA-IC.
PROJECT: Collier Boulevard (S.R. 951) – Collier County, Florida
SUBJECT: Proposed Irrigation Control System Change Review/Study
As a result of recently considering connecting the proposed irrigation design zones to an existing controller located near
the northern end of the north median, study to evaluate the feasibility of connecting to the existing controller has been
prepared. Below are the subject related observations.
OBJECTIVE
Primary Objective: The primary will be to eliminate the use of the Motorola Piccolo units proposed in the design, and
study the economic feasibility to connect to an existing controller located nearby.
CHALLENGES
Existing Landscape: To get to the existing controller the proposed zones + hydrometer control wires will have to be
installed trenching through existing landscape. The existing landscape has been in the ground for several years,
approximately 10+/- years.
Planting bedlines of ornamental grasses primarily meander throughout the median. The plantings are mature, slightly
beyond their prime; some showing signs of decay, but most are in satisfactory condition.
There are sections of turf grass that meander throughout the median. The turf grass is in fair to poor condition due to
irrigation coverage interference by the plantings, also more than likely insufficient irrigation coverage applications
(primarily due to surface runoff losses), and also very likely due to existing soil conditions (highly alkaline with poor
percolation/drainage).
Distance: The approximate distance in a straight line measure from the existing controller location to the project’s limit
of work line (north limits line) is approximately 1600+/- L.F. Trenching in a straight line from the existing controller
location to the project’s north limits line is not physically and feasibly possible due to large diameter palms (Royal
Palms) as well as mature trees occurring along the straight line(s) possible path(s).
Existing Planting Bedlines Trenching; Trenching through the existing planting bedlines will create a highly
visible disturbance to the existing plant communities. The trenching through the planting bedlines communities
will present a significantly high cost that will not make the likely cost feasible for the project. Planting bedline
disturbance restoration will cost around $40,000.00+/-, depending on the width of the path (assume 5’ width).
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Directional Bore Installation; Having a Directional Bore conduit installed will require at least a 3” DB conduit,
with a cost between $42,000.00 to 45,000.00, excluding the cost of the control wires.
Turf Grass Trenching: Trenching through the turf grass will present the lowest existing landscape restoration
cost because it will present the least disturbance if done with a small trenching unit (set for an 18”+/- trench
depth, but it will present an increase in distance (control wire quantities) due to the turf grass meandering
throughout the median from side to side. A 15%+ (250+/- L.F.) should be added to the 1600+/- L.F. distance. The
existing controller to project’s north limits line distance to consider should be 1,850+/- L.F.
Control Wire Sizes: The length of the control wire required to reach from the existing controller location to the farthest
valve (at the south end, near the project’s south limits line) will be around 4750+/- L.F. Such length will require the use
of a solid copper 10 Gauge ground wire and a solid copper 10 gauge active and spare wires. As the distance decreases the
size (gauge) of the active control wires can decrease. Note, as a wire diameter decreases, the nominal label size increases.
For example, a 10 gauge wire has a significantly larger diameter than a 14 gauge wire. Below is a table of recommended
control wires, and approximate lengths.
Estimated Control Wire Quantities
Item Number Description 10 Gauge 12 Gauge 14 Gauge
Main Ground Wire (Solid White) 4,750+/- L.F.
Spare Ground Wire (White w/ Red Stripe) 4,750+/- L.F.
South Median Farthest Active Wire (Solid Blue at Valve D-5) 4,750+/- L.F. .
North Median Farthest Active Wire (Solid Green at Valve B-3) 3,000+/- L.F.
Hydrometer Ground Wire (Solid White) 2,900+/- L.F.
Hydrometer Active Wire (Solid black) 2,900+/- L.F.
Hydrometer Ground Spare Wire (Solid White w/ Black Stripe) 2,900+/- L.F
Hydrometer Active Spare Wire (Solid w/ stripe) 2,900+/- L.F.
Valve A-1 Active (Solid Red) 2,100+/- L.F.
Valve A-2 Active (Solid Red) 2,450+/- L.F.
Valve A-3 Active (Solid Red) 2,600+/- L.F.
Valve B-1 Active (Solid Red) 2,800+/- L.F.
Valve B-2 Active (Solid Red) 3,000+/- L.F.
Valve B-3 Active (Solid Red) 3,000+/- L.F.
Valve C-1 Active (Solid Red) 3,400+/- L.F.
Valve C-2 Active (Solid Red) 3,400+/- L.F.
Valve C-3 Active (Solid Red) 3,700+/- L.F.
Valve D-1 Active (Solid Red) 4,100+/- L.F.
Valve D-2 Active (Solid Red) 4,100+/- L.F.
Valve D-3 Active (Solid Red) 4,400+/- L.F.
Valve D-4 Active (Solid Red) 4,400+/- L.F.
Valve D-5 Active (Solid Red) 4,750+/- L.F.
27,800+/- L.F. 19,800+/- L.F. 29,450+/- L.F.
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Estimated Control Wires Approximate Estimated Cost
Description Estimated Unit Total L.F. Estimated Unit Cost Estimated Unit Total
14 Gauge 29,450+/- L.F. $0.10 L.F. $2,945.00
12 Gauge 19,800+/- L.F. $0.15 L.F. $2,970.00
10 Gauge 27,800+/- L.F. $0.20 L.F. $5,560.00
Subtotal $11,475.00
Contingency 10% $1,147.50
ESTIMATED TOTAL $12,622.50
EXISTING CONTROLLER LOCATION AND LANDSCAPE IMAGES
Above Images: The existing controller is located near the north end of the median located south of the Fiddler’s Creek
development entrance. The controller’s electric service is provided by a single phase transformer located on a power pole
located on the west side of the Right of Way, parallel to the controller.
Above Images: The planting areas in the median (left image) have a consistent planting density for most of the planting
area’s length; but at some locations within the median’s landscape area, where turf grass occurs (middle of the right
image) it is possible to install the control wire using a small walk-behind trencher.
Above Images: Throughout the median the turf grass meanders and has different forms of different widths. The turf
grass paths present the most viable alternative for the control wire trenching.
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Above Images: Left Image, Near the south end of the existing landscape area the turf grass path ends before a planting
area mass that covers the entire width of the median, for about a 50’ length. Right Image, At the end (south end) of the
existing landscape, where the new project begins, the existing landscape is sparse.
If you have any questions, feel free to contact me at your convenience.
Sincerely yours,
JAMES C. ABNEY - IRRIGATION CONSULTANT
James C. Abney
James C. Abney, I. A., C.I.T.
State of Texas Licensed Irrigator 005636
Irrigation Association Certified Landscape Irrigation Auditor 018448
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