RFP_2025-08_Town_of_Farragut_RFP_Fiber_Optic_Cable_Addenda_2.pdf

P a g e 1 | 80

Town of Farragut

Addendum 2

RFP# 2025-08

Farragut Fiber Optic Cable Implementation

The proposer acknowledges this addendum shall modify and become a part of the original solicitation document. The Proposer further acknowledges that should it be determined at the time of the bid opening that the Proposer has failed to acknowledge receipt of ALL issued addenda; the Proposer’s Bid submission shall be rejected. The Proposer understands that any verbal representation made or assumed to be made during any oral discussion held between

Proposer’s representatives and any Town personnel is not binding. Only the information issued in writing and added to the specifications by an official addendum is binding.

The due date and time for submitting proposals will remain the same, November 11, 2024, 1:00PM EST.

Item #1 Attachments

1. A copy of the sign-in sheet from the pre-bid meeting is included with this Addendum.

Item #2 Bidding Information

Items addressed by Kimley-Horn and Associates, Inc. at the Pre-Bid Meeting:

1. Bids are due Monday, November 11, 2024 at 1:00 PM Eastern Standard Time (EST) at the Town of Farragut Community Center, located at 239 Jamestowne Blvd, Suite 201, Farragut, TN 37934. The reading of the bids will begin at 1:00 pm EST.

2. This project does have federal funding - American Rescue Plan Act of 2021 (ARPA),

3. Bidders must visit either of the following websites to obtain the Bid Set to bid on this project

a. https://www.townoffarragut.org/Bids.aspx

b. http://www.vendorlink.com/ https://www.townoffarragut.org/Bids.aspx https://www.townoffarragut.org/Bids.aspx http://www.vendorlink.com/ http://www.vendorlink.com/

P a g e 2 | 80

4. Bidders must be pre-qualified through TDOT; bids will NOT be opened from any contractor not on the TDOT pre-qualified list at the time of bid opening. Sub-contractors do not need to be pre-qualified at the time of the bid but must be pre-qualified prior to beginning any work on the project.

5. We ask the following on the front of their bid envelope:

a. Contractor name, address, telephone number, email address

b. List of sub-contractors

c. The RFP number and project description listed at the top of this bid addendum

6. All forms must be completed by hand in the bid book. Do not scan the book and reprint it. Do not remove pages from the bid book. Do not add any pages to the bid book except for the power of attorney form to accompany the proposal bond or a check to accompany the bid guarantee.

7. Complete the front cover of the bid book with Contractor name and Surety name.

8. All questions must be submitted by Monday, November 4, 2024, at 5:00 PM EST in writing to terrance.hill@kimley-horn.com. Responses will be provided by Wednesday, November 6, 2024, at 5:00 PM EST.

9. Project has a schedule to be completed on or before twelve (12) months from

Construction NTP. The Town of Farragut will work with the low bidder to issue the Notice to

Proceed within a reasonable date following approval of the bid award. Kimley-Horn will work with the contractor to complete bonds, contracts, etc. in order for contractor to begin work promptly after NTP.

10. Liquidated damages will apply past the end date as outlined in the contract.

11. The contractor will be required to coordinate with utilities throughout the project for markings of lines and any notifications for inspection.

12. Traffic Control – Contractor is responsible for traffic control. Minimal road closures may be allowed. If it is determined a road closure is necessary, requests must be submitted in writing to the Town of Farragut and TDOT (if on state route) (7) seven days prior to the closure. Any lane or closure request must be approved by TDOT, and/or the Town of Farragut.

P a g e 3 | 80

13. Monthly Meetings – An informed and responsible representative from the general contractor will be expected to attend monthly (at a minimum) or bi-weekly construction meetings held at the Town of Farragut Community Center located at 239 Jamestowne Blvd Suite 201, Farragut, TN 37934. This person should be prepared to discuss the prior week’s activities as well as expected activity for the following weeks.

14. T2’s and certifications will be required of any item before payment is made to contractor.

15. For a complete bid to be accepted, the following forms in the project bid book must be filled out:

a. Completed cover page

b. Completed proposal

c. Completed bid form

i. Acknowledgement of addendum

d. Completed proposal certification

e. Completed proposal bond with attached power of attorney OR completed proposal guarantee with attached cashier’s check

16. Do not remove these forms from the original bid book document or include any attachments other than the power of attorney or cashier’s check.

17. Do not use any other type of bid bond form other than the one in the provided bid book.

Item #3 Questions and Answers

1. The hyperlink inside the PDF Proposal Contract lands us on a Page Not Found destination.

Can you assist with a revised hyperlink?

- See the updated TDOT link below. https://www.tn.gov/tdot/tdot-construction-division/constructioncontractor-prequalification.html

2. Is the Pre-Bid Conference in person or online or both?

a. PDF gives an address and suggests in-person

b. Registration suggests an Online session.

- The Pre-Bid Meeting is online and online registration is required to attend.

3. Are you looking for one contractor to do both physical layer and layer 2 requirements?

- The contractor and/or their sub-contractor will be responsible for installing and configuring layer 2 switches in each location.

https://www.tn.gov/tdot/tdot-construction-division/construction-contractor-prequalification.html https://www.tn.gov/tdot/tdot-construction-division/construction-contractor-prequalification.html https://www.tn.gov/tdot/tdot-construction-division/construction-contractor-prequalification.html https://www.tn.gov/tdot/tdot-construction-division/construction-contractor-prequalification.html https://www.tn.gov/tdot/tdot-construction-division/construction-contractor-prequalification.html https://www.tn.gov/tdot/tdot-construction-division/construction-contractor-prequalification.html https://www.tn.gov/tdot/tdot-construction-division/construction-contractor-prequalification.html

P a g e 4 | 80

4. I was looking through the RFP and noticed that in several instances it made reference to SP730FA for Materials and Construction Methods & Testing requirements. I can not locate SP730FA in this document nor on the TDOT website. Any help in locating this document would be greatly appreciated.

SP730FA is included with this addendum

P a g e 5 | 80

19 SP730FA SP730FA

S T A T E O F T E N N E S S E E (Rev. 09-8-20) January 1, 2015 Town of Farragut

Knox County

SPECIAL PROVISION

REGARDING

SECTION 730 – TRAFFIC SIGNALS

DESCRIPTION

730.01 Description of Work

This work consists of furnishing and installing all necessary materials and equipment to complete in-place traffic signal systems, modify existing systems, or both, all as shown on the Plans or the Standard or Special Details, and as specified in these Specifications.

Unless otherwise shown on the Plans or specified in the Special Provisions, all materials shall be new.

Where existing systems are to be modified, incorporate the existing material into the revised system, salvage it, or abandon it as specified or as directed by the Engineer.

Furnish and install all incidental parts that are not shown on the Plans or specified herein, but that are necessary to complete the traffic signal or other electrical systems, or that are required for modifying existing systems, as though such parts were shown on the Plans or specified herein. Include the costs of such incidentals in bid price for other items. All systems shall be complete and in operation to the Engineer’s satisfaction at the time of completion of the work. This is to include but not limited to the traffic signal system work, traffic signal communications, traffic signs, traffic markings and any other work required to ensure that the traffic signal system can function as per the final plans.

GENERAL REQUIREMENTS

P a g e 6 | 80

730.02 Regulations and Code

Ensure that all equipment provided conforms to NEMA Standards Publication, Traffic Control Systems, latest revision, or the Radio Manufacturers Association, whichever is applicable. In addition to the requirements of these Specifications, the Plans, and the Special Provisions, all material and work shall conform to the requirements of the NEC and the NESC; the Standards of ASTM, ANSI, ITE, and IMSA; the MUTCD; and other applicable local ordinances.

Wherever reference is made to the NEC, or the Standards mentioned above, consider the reference to mean the code or standard that is in effect on the date of advertising the bids or authorization for force account.

730.03 Submittal Data Requirements

Within 30 days after the issuance of the work order, submit to the Engineer, the Traffic Operations Division, and the local entity (Town of Farragut), one collated set of the manufacturer’s descriptive literature and technical data that fully describes the types of signal equipment proposed for use. In the descriptive literature, identify the manufacturer and models and include sufficient information for the Engineer to determine if the equipment or material meets the requirements of the Plans and these Specifications.

Include with these sets of submittal data a list of the materials submitted along with descriptive material for, but not limited to, the following items:

1. Controller

2. Cabinet and Exhaust Fan

3. Detectors

4. Signal Heads; including Lamp Information and Mounting Hardware

5. Loop Wire and Loop Sealant

6. Shielded Detector Cable

7. Signal Cable

8. Cable for Span Wire, Guys, and similar features

9. Pull Boxes

10. Conduit

11. Coordination Equipment

P a g e 7 | 80

Also include in the submittal sets detailed scale drawings of all non-standard or special equipment and of all proposed deviations from the Plans. Upon request, submit for approval sample articles of materials proposed for use. The Department will not be liable for any materials purchased; labor performed, or delay to the Work prior to such approval.

In addition to the above, submit to the Engineer a notarized letter certifying that all traffic signal materials listed in the submittal conform to the Plans and Specifications along with a copy of a statement from the maintaining agency that the system is acceptable to the agency. Any material substitutions requested by the maintaining agency shall meet minimum Department standards and shall be approved by the Department in writing prior to purchase or installation. The Department will not be liable for any materials purchased;

labor performed, or delay to the Work regarding such approval.

Submit an electronic copy in PDF format of “Design” or “Shop” drawings, indicating the proposed dimensions and material specification for each of the supports and mast arms involved, to the Division of Structures for approval purposes within 30 days after the work order is issued. The Department will review these drawings at the earliest possible date, and will return the electronic copy marked “Approved for Fabrication,” or “Returned for Revisions as Noted.” Respond by taking appropriate action to ensure the earliest possible correction of these items so as not to delay the installation.

730.04 Mill Test Reports and Certification

Provide Mill Test Reports (MTR) or Certifications of Conformance to the Specifications for Materials and Design for all materials incorporated into the Work. Supply the following prior to acceptance of the structures:

1. MTRs for MAJOR structural items only, as identified in Table 730.04-1, shall include both physical and chemical descriptions of the material as supplied to the fabricator.

When physical properties are altered during the fabrication, supplement the MTR covering chemical composition with certified test reports indicating the physical properties of this material after fabrication.

2. Certifications of Conformance to the Specifications for all remaining material not covered by MTR as identified in Table 730.04-1.

3. Certification that all welding was performed by operators qualified as follows: Steel welders to AWS and aluminum welders to ASME.

4. Certification of Conformance to the Specification for the Design of all components not completely dimensioned and detailed on the Standard Drawing.

P a g e 8 | 80

Table 730.04-1: Required Mill Test Reports and Certifications Component Materials MTR Certification

Tubes for arms and poles X Base Castings X Anchor Bolts X Pole tops, misc. fittings, and hardware X

Fabricated or cast-type arm connections X

Galvanizing X

730.05 Working Drawings

Provide within the controller cabinet and to the local maintaining agency an electrical schematic diagram of the cabinet and system wiring. Submit manufacturer’s instructions for installation, maintenance, and operation of all equipment to the local maintaining agency and also place a copy within the controller cabinet. Place all such materials inside a plastic envelope mounted in the cabinet.

730.06 Guarantee

Guarantee the Traffic Signal System(s) installed under these Specifications, including all equipment, parts, and appurtenances in connection therewith, to the Town of Farragut and State against defective workmanship and materials for a period of not less than 1 year following the date the signal system is installed and made operational, except in no case shall this guarantee expire prior to 3 months after the final acceptance of the Project. Upon completion of the Project, turn over to the government agency responsible for maintaining the signal installation all warranties or guarantees on equipment and materials that are offered by the manufacturers as normal trade practice.

P a g e 9 | 80

730.07 Training

Provide to the maintaining agency and/or the Department a training session on the controller and associated cabinet equipment to be supplied on the Project. The training session shall last for a minimum 4 hours unless the maintaining agency and/or the Department determines a lesser time is adequate. Train the user in the complete operation and programming features of all controllers. Provide this training prior to the acceptance of the Project at a facility agreed upon by the maintaining agency.

After the required training, certify to the Engineer that training has been completed.

This training requirement shall not apply if a training program meeting these criteria has been provided to the maintaining agency by this vendor and/or manufacturer on the equipment being bid within 18 months prior to the date of the invitation to bid. This requirement shall apply if the bidder is proposing new, upgraded, or modified equipment not covered in the previous training program.

MATERIALS AND INSTALLATION

730.08 Excavating and Backfilling

Perform excavation needed to install conduit, foundations, and other equipment, so as to cause the least possible damage to the streets, sidewalks, and other improvements.

Excavate trenches no wider than necessary to properly install the electrical equipment and foundations. Do not begin excavating until immediately before installing conduit and other equipment. Place the material from the excavation where it will cause the least disruption and obstruction to vehicular and pedestrian traffic and the least interference with the surface drainage.

Backfill the excavations and compact to at least the density of the surrounding material.

Remove all surplus excavation material and dispose of outside the highway right-of-way, in accordance with 203.07, or as directed by the Engineer.

After backfilling, keep excavations well-filled, and maintain in a smooth and well-drained condition until permanent repairs can be made.

P a g e 10 | 80

At the end of each day’s work, and at all other times when construction operations are suspended, remove all equipment and other obstructions from that portion of the roadway used by public traffic, and park a minimum of 30 feet from the edge of pavement unless otherwise protected by guardrail, bridge rail, or barriers installed for other purposes.

Perform excavation in the street or highway so as to restrict no more than one traffic lane in either direction at any time. Do not obstruct traffic during hours of peak flow unless otherwise approved by the Engineer. Incorporate construction signing in accordance with the MUTCD.

730.09 Removing and Replacing Improvements

Replace or reconstruct, with the same kind of materials as found on the Work, improvements, such as sidewalks, curbs, gutters, Portland cement concrete and asphalt concrete pavement, bituminous surfacing, base material, and all other improvements removed, broken, or damaged by the Contractor.

Before removing the sidewalk and pavement material, use an abrasive type saw to cut, to a minimum depth of 2 inches, the outline of all areas to be removed in Portland cement concrete sidewalks and in all pavements. Use any method satisfactory to the Engineer to cut the remainder of the required depth. Make cuts neat and true with no shatter outside the removal area.

Whenever a part of a square or slab of existing concrete sidewalk or driveway is broken or damaged, remove the entire square or slab and reconstruct the concrete as specified above.

Perform all work in accordance with these Specifications, or the applicable local ordinance, whichever is of a higher standard. Consider this removal and replacement work to be incidental to other items.

730.10 Foundations

Construct foundations for posts, standards, and cabinets of Class A Portland cement concrete.

Pour foundations for posts, standards, and pedestals after the post, standard, pedestal, or anchor bolts or reinforcing steel is in proper position. Form the exposed portions to present a neat appearance. Rest the bottom of concrete foundations on firm undisturbed ground.

P a g e 11 | 80

Construct forms to be true to line and grade. Finish tops of footings for posts and standards, except special foundations, to curb or sidewalk grade or as ordered by the Engineer. Use rigid forms, securely braced in place. Place conduit ends and anchor bolts by means of a template until the concrete sets. Moisten both the forms and the ground that will be in contact with the concrete before placing concrete. Do not remove forms until the concrete has cured for at least 12 hours and hardened sufficiently to allow form removal without causing damage to the concrete.

Apply an ordinary surface finish to exposed surfaces of concrete. Wherever the edge of a concrete foundation or sidewalk section is within 18 inches of any existing concrete improvement, extend the sidewalk section to meet the existing improvement.

Where obstructions prevent the construction of planned foundations, construct a foundation satisfactory to the Engineer.

730.11 Anchor Rods

Furnish, with anchor-base type rods, anchor bolts meeting the requirements of ASTM F1554, grade as required by design. Fit each anchor bolt with two heavy hex nuts. Hot-dip galvanize all nuts and not less than 10 inches of the threaded ends of anchor bolts according to ASTM A153. The anchor bolts shall be capable of resisting at yield strength stress the bending moment of the shaft at its yield strength stress.

Set standards, posts, and pedestals plumb by adjusting the nuts before the foundation is finished to final grade. Do not use shims or similar devices for plumbing or raking. After plumbing or raking has been completed, cut off anchor bolts 1/4 inch above the top nut, and paint the exposed surface with rust protective paint.

Furnish all anchor bolts and nuts required for relocating existing standards and posts.

730.12 Pull Boxes

Construct and install pull boxes as shown on the Plans and the Standard Drawings or as directed by the Engineer. Additional pull boxes may be required where conduit runs are more than 150 feet long. The maximum spacing between pull boxes shall be 150 feet, unless otherwise directed by the Engineer. Install pull boxes wherever practicable out of the line of traffic. Set covers level with the pavement, or with the curb or sidewalk grade, or with the surrounding ground as required.

P a g e 12 | 80

Place electrical conductors within pull boxes so as to be clear of the metal frame and cover.

Rest the bottom of the pull box firmly on a bed of crushed stone with a minimum depth of 12 inches below the bottom, and extending 6 inches beyond the outside edge of the pull box, unless otherwise directed by the Engineer.

A. Concrete Pull Boxes Construct concrete pull boxes of a mixture of one part cement, two parts sand, and four parts gravel or 1-inch crushed stone with reinforcement placed as shown on the Standard Drawings. Reinforcement shall consist of welded wire reinforcement, 4 x 4 inches - No. 4/4 at 85 pounds per 100 square feet, meeting the requirements of 907.03.

Pull boxes may be poured in place or precast. The color of the pull box concrete material shall match the surrounding concrete color.

Install a cast iron frame and cover of the dimensions shown on the Drawings in each pull box. Provide castings of Class 30, meeting the requirements of 908.07. The covers shall have a roughened top surface of 1/8 inch in relief. Provide notches for removing the cover. Inscribe the words “TRAFFIC SIGNALS” on top of the covers with letters 1-1/2 inches high and 1/8 inch in relief as shown on the Drawings.

The frame shall have a minimum weight of 42 pounds. The cover shall be of the “Extra Heavy” type with a minimum weight of 54 pounds.

B. Reinforced Plastic or Epoxy Mortar Pull Boxes Ensure that pull boxes composed of reinforced plastic or epoxy mortar are designed and tested to temperatures of -50 °F and meet the requirements of the following: ASTM D543, ASTM D570, ASTM D790, and ASTM D635, and are based on a 30,000-pound single axle load over a 10 x 20 inch area. The top of the pull box shall consist of a concrete frame (ring) and cover. The color of the pull box concrete material shall match the surrounding concrete color. Inscribe the words “TRAFFIC SIGNALS” on top of the covers.

730.13 Transformer Base

Fabricate the transformer base from steel plate and sheet, and design it to harmonize with the shaft. Provide each transformer base with:

1. One 7-1/2 x 9 inch minimum handhole, with a cover secured with stainless steel fastening screws;

P a g e 13 | 80

2. Four galvanized steel bearing plates to fasten the base to the anchor bolts;

3. Four galvanized steel bolts, nuts, and washers to fasten base and standard; and

4. One 1/2-inch, 13 UNC grounding nut welded to the inside of the base opposite the handhole opening.

Ensure that the strength of the transformer base is comparable with that of the shaft.

When a transformer base is required, no handhole will be required in the shaft.

730.14 Conduit

Furnish and install plastic and steel conduit in accordance with these Specifications and close conformity with the lines shown on the Plans or as established by the Engineer.

Threads shall be clean cut, straight, and true and of sufficient length to allow proper coupling. Do not use long running threads on any part of the Work. Protect threads in transit and during installation, and provide conduit with proper supports and protection during construction to prevent damage. Properly thread, ream, and cap all ends of pipe installed for future connections to prevent water and foreign matter from entering the conduit system. Provide threaded ends with approved conduit bushings.

Signal conduit shall be a minimum 2 inches in diameter, and detector conduit a minimum 1 inch in diameter, unless otherwise specified or directed by the Engineer. Conduit for service connections shall be 1 inch in diameter. Do not use conduits smaller than 1 inch in diameter unless otherwise specified, except grounding conductors at service points shall be enclosed in 3/4-inch diameter conduit. Larger-sized conduit may be used, at no additional cost to the Department, in which case it shall be for the entire length of the run with no reducing couplings allowed.

A. Materials Provide conduits and fittings of the type as shown in the construction plans or as directed by the Engineer and as follows:

1. Steel Conduit

a. Rigid conduit and fittings shall be heavy-wall, hot dipped galvanized steel conforming to Federal Specification WW-C-581-d(3) and ANSI C80.1. It shall be galvanized inside and out and shall meet the requirements of ASTM A53.

Each length shall bear the label of Underwriters Laboratories, Inc.

P a g e 14 | 80

b. Flexible conduit shall be galvanized flexible steel meeting Federal Specification WW-C-581-d(3), ANSI C80.1 and UL Standard 6 with a minimum 40-mil thickness of polyvinyl chloride (PVC) coating conforming to ASTM D746.

2. Plastic Conduit. For plastic conduit, provide high impact PVC, Schedule 40 or Schedule 80.

3. High-Density Polyethylene (HDPE). Materials used for the manufacture of HDPE conduit and fittings shall be per ASTM F2160 and consist of a Standard Dimension Ratio (SDR) 9-11. No other substitutions shall be allowed unless directed by the Engineer. HDPE conduit can be used with preassembled cable and rope-in-conduit.

Conduit shall be extruded from colored material for uniform full-thickness coloring. All continuous flexible conduit shall be labeled with durable identification giving the name of the manufacturer, conduit size (inner diameter trade size and wall thickness/rating), manufacturer/date codes, the legend “TOWN OF FARRAGUT COMMUNICATIONS” and sequential foot marking. Labeling shall occur a maximum of every 2 ft.

4. Coupling

Make every effort to minimize coupling. Couplings are permitted only with the Engineer’s prior approval. Any approved couplings shall be airtight and watertight and shall be installed in accordance with the conduit and the coupling manufacturer's recommendations.

B. Installation All bends shall be in strict compliance with the NEC.

Lay conduits to a minimum depth of 6 inches below subgrade but not less than 24 inches below pavement grade except when approved by the Engineer; conduit may be laid at a depth of not less than 24 inches below top of curb when placed in back of the curb. Place conduit runs for detectors parallel to existing or proposed curbs and not more than 18 inches behind the curb face unless other specified. Place steel conduit or Schedule 80 PVC conduit under existing pavements by approved jacking or drilling methods. Do not disturb pavements without the Engineer’s approval. Where trenching is allowed in a traffic bearing area, use PVC conduit (Schedule 40) encased in concrete.

P a g e 15 | 80

Conduits shall be continuous and extend from end point (i.e. pull box, foundation signal pole, pedestal pole, etc.) to another end point, or as directed by the Engineer. Conduit splicing shall not be permitted between end points.

After completing the installation of the conduit, test all conduits installed under the Contract with a mandrel having a diameter 1/4-inch smaller than the conduit and a length of 2 inches. Repair, to the Engineer’s satisfaction, all conduits that will not allow passage of the mandrel; if repairs cannot be accomplished, remove and replace the conduit at no additional cost to the Department. After the mandrel test, scour all conduits with a stiff wire brush slightly larger in diameter than the conduit. Clear all conduits in the Engineer’s presence.

Extend conduits terminating in anchor base standards and pedestals approximately 2 inches above the foundation and slope them toward the hand-hole opening. Conduits shall enter concrete pull boxes from the bottom and shall terminate not less than 2 inches or more than 4 inches above the bottom of the box and near the box walls to leave the major portion of the box clear.

Clean existing underground conduit to be incorporated into a new system by blowing with compressed air, or by other means approved by the Engineer.

Seal all open conduit entrance holes, with or without cables, with conduit duct seal putty. Where cables enter the conduit, the sealant shall be applied after installing the cable. These locations shall consist of conduit ends in pull boxes, cabinet bases and weather heads.

All fiber optic conduit installed shall include a polyolefin pull string for future conductor pulls and shall have a tracer wire (#10 AWG bare copper stranded) for all fiber optic conduit installations.

AWG#14 trace/locate wire shall be installed in all empty conduit runs and spliced between boxes to form a continuous run. Any fiber optic conduit shall be terminated in “Type B” fiber optic pull box unless otherwise specified. Fiber optic conduit shall have Type 2 Warning Tape installed a minimum of twelve (12) inches below finished grade.

730.15 Conductors

Furnish and install conductors in accordance with these Specifications and close conformity as shown on the Plans, or as directed by the Engineer.

Traffic Control Conductors shall be rated at 600 volts. Run all conductors, except loop conductors and cables run along messengers, in conduit, except where run inside poles.

P a g e 16 | 80

Where signal conductors are run in lighting standards containing high voltage street lighting conductors, encase the signal conductors in flexible or rigid metal conduit. Where telephone circuits are introduced into controller foundations, encase the telephone conductors in flexible metal conduit and in conformance with the NEC.

Conductors for traffic loops shall be continuous AWG No. 14 XLP stranded wire to the detector terminals or spliced with shielded detector cable within a pull box, conduit, or pole base.

Detector cable shall be two conductor twisted pair shielded AWG No. 14 stranded meeting IMSA Specification No. 50-2.

730.16 Cable

All signal cable shall conform to applicable IMSA Specification No. 19-1 or 20-1. Use stranded cable color coded AWG No. 14 for all signal and accessory circuits. Retain the same color identification for the entire length of a circuit run.

730.17 Wiring

1. Terminate all wiring to screw terminals using lugs.

2. Make all splices with solderless connectors, and insulate splices with weatherproof tape applied to a thickness equal to the original insulation.

3. Attach cables to messenger with non-corrosive lashing rods or stainless steel wire lashings.

4. All wiring within enclosed cabinets shall be neatly formed and harnessed and shall have sufficient length for access and servicing.

730.18 Service Connection

Coordinate service connection details and metering with the local utility as directed by the Engineer and in conformance with the Town of Farragut and County requirements. Obtain the necessary service for each installation. New service will be established by contacting the Town of Farragut Engineering Department.

P a g e 17 | 80

730.19 Sealant

Provide sealant material selected from the Qualified Products List maintained by the Department’s Material and Test Division for sealing saw-cuts. The sealant material shall resist the upward movement of loop and lead-in and shall exhibit stable dielectric characteristics, including a low permittivity and high dielectric strength. It shall bond to the roadway paving material, preventing entry of moisture, and shall remain flexible without melting through the anticipated temperature and weather conditions.

730.20 Strand Cable

Span cable for suspending signal heads between pole supports shall be 7-strand, Class A, copper-covered steel wire strand or greater, meeting the requirements of ASTM A460, with a minimum breaking strength as noted on the Plans. An acceptable alternate is 7-strand steel wire with a Class A zinc coating meeting the requirements of ASTM A475, with a minimum breaking strength as shown on the Plans.

Strand cable for messenger wire (other than span wire as specified above) and pole guy cable use shall be of the diameter(s) shown on the Plans and shall meet the requirements of ASTM A475 for zinc-coated steel wire strand, 7strand Siemens-Martin Grade with a Class A zinc coating or greater.

A Figure 8 cable combining the messenger cable and conductor cable in an insulated jacket is an acceptable alternate to conductor cable lashed to a messenger cable.

730.21 Bonding and Grounding

Make metallic cable sheaths, conduit, transformer bases, anchor bolts, and metal poles and pedestals mechanically and electrically secure to form a continuous system, and ensure they are effectively grounded. Bonding and grounding jumpers shall be copper wire or copper strap of not less than the same cross-sectional area as No. 6

AWG.

Furnish and install a ground electrode at each service point. Ground electrodes shall be one-piece lengths of copperweld ground rod not less than 8 feet in length and 1/2 inch in diameter, installed in accordance with the NEC. Ground the conduit and neutral as required under the NEC, except that grounding conductors shall be No. 6 AWG or approved equal, as a minimum. Enclose exposed ground conductors in 1/2-inch diameter conduit, and bond to the electrode with a copperweld ground clamp.

P a g e 18 | 80

730.22 Field Test

Prior to completing the work, conduct the following tests on all traffic signal and lighting circuits in the Engineer’s presence:

1. Test for ground in circuit.

2. Conduct a megger test on each circuit between the circuit and ground. The insulation resistance shall be not less than the values specified in Section 119 of the NEC.

3. Conduct a functional test to demonstrate that each part of the system functions as specified or intended herein.

4. Test all detector loops and leads before and after they are sealed in the pavement to ensure there are no shorts to ground in the system and to ensure that the loop plus lead-in inductance is within the operating range of the detector.

Replace or repair, in a manner approved by the Engineer, all faults in material or in the installation revealed by these tests. Repeat the applicable testing until no fault appears.

730.23 Inspection

After completion of the installation and before final acceptance of the Project, conduct a full operational check of the system under actual traffic conditions in the presence of the Engineer. The operational check shall cover a minimum time period of 30 calendar days.

During this period, perform all necessary adjustments and replace all malfunctioning parts of the equipment required to place the system in an acceptable operational condition at no additional cost to the Department. Perform all work and furnish all materials required under these Specifications subject to the direct supervision, inspection, and approval of the Engineer. Provide the Engineer and authorized representatives free access to the work, and to all plants, yards, shops, mills, and factories where, or in which, articles or materials to be used or furnished in connection with such work are being prepared, fabricated, or manufactured. Provide full and sufficient information to determine that the performance of the work, the character of materials, and the quality of workmanship and materials meets the intent of these Specifications.

Only perform work in the presence of the Engineer or the Inspector appointed by the Engineer, unless permission to do otherwise has first been obtained. The Engineer may reject any work that is performed or constructed in the absence of the Engineer or Inspector, without such permission having been granted, either expressly or by implication.

P a g e 19 | 80

The inspection of the work shall not relieve the obligation to properly fulfill the Contract as specified. If the Engineer finds a part of the work, or the materials used in the work, to be defective or unsuitable at any time prior to final acceptance, repair or replace such defective or unsuitable work or material.

Request the presence of an Engineer or Inspector in connection with the work under these Specifications at least 24 hours before such services will be required.

SIGNAL HEADS

730.24 Signal Heads

Signal heads shall meet the latest requirements published in the Equipment and Materials Standards of the Institute of Transportation Engineers (ITE) for Adjustable Face Vehicle Traffic Control Signal Heads” and the National Electrical Code. The arrangement of traffic signal heads shall be mounted as shown on the Plans or as specified by the Engineer and be in accordance with the latest versions of the MUTCD and the TDOT Traffic Design Manual.

All circular indications shall use 12-inch lenses unless otherwise shown on the Plans. All arrow indications shall use 12-inch lenses. All new vehicle signal heads installed at any one intersection shall be of the same style and from the same manufacturer. All exposed metal signal housings, doors, visors, backplates and framework parts shall be painted with a powder coated finish and be in accordance to the MUTCD specifications. Apply one or more coats of primer to all signal heads, signal head and mountings, followed by two coats of high quality synthetic resin enamel of Traffic Signal Black meeting or exceeding Federal Specifications TT-C-595 Gloss Black. Apply one or more coats of primer to all signal hoods followed by two coats of high quality synthetic resin enamel of Traffic Signal Black meeting or exceeding Federal Specifications TT-C-595 Gloss Black. Apply one or more coats of primer to louvers as specified, signal hood interiors, and back plates, followed by two coats of Lusterless Black Enamel meeting or exceeding Master Painters Institute (MPI) Reference

94. Examine all factory enameled equipment and materials for damaged paint after installation, and repair such damaged surfaces to the Engineer's satisfaction. Factory applied enamel finish in good condition and of appropriate color will be acceptable.

Suspensions for span wire mounting of multi-faced signal heads and signal head clusters (such as a 5-section signal head) shall include an approved swivel type balance adjuster for proper vertical alignment.

P a g e 20 | 80

Signal head housings shall be cast aluminum and all associated parts/hardware shall be of non-corrosive material. In addition to these requirements, comply with the following:

A. Optical Units Traffic signal indications shall be LED type with the incandescent look and meet the Institute for Transportation Engineers (ITE) latest LED specifications. All LED indications shall have a five year warranty.

B. Signal Head Mounting and Mounting Brackets Furnish signal heads that either have integral serrations or are equipped with positive lock rings and fittings designed to prevent heads from turning due to external forces.

Lock ring and connecting fittings shall have serrated contacts. Provide signals with water-tight fittings.

Support bracket-mounted signal heads, as shown on the Plans, by mounting brackets consisting of assemblies of 1-1/2 inch standard pipe size. Ensure that all members are both plumb or level, symmetrically arranged, and securely assembled. Conceal all conductors within poles and mounting assembly. Secure each slip fitter to the pole.

C. Directional Louvers Where shown on the Plans, furnish and install louvers in the hoods of the signal head sections designated.

Directional louvers shall have a snug fit in the signal hoods. Construct the outside cylinder and vanes from a non-ferrous metal or galvanized sheet steel. Louvers shall be painted with a powder coated finish.

P a g e 21 | 80

D. Back Plates Where shown on the Plans, furnish and attach back plates to the signal heads. All back plates shall be louvered and constructed of 3,003, half-hard, 0.051-inch minimum thickness aluminum sheet. Other materials such as plastic or fiberglass may be used where approved. In fabricating back plates, bend back the inside vertical edges, adjacent to the signal head, to form mounting brackets for attaching to the signal. Form back plates in two or more sections and bolt together, thus allowing for installation after signal heads are in place. Back plates shall have a dull black appearance in the front and back.

E. Wiring Signal head leads shall be No. 18 AWG stranded with 221 °F thermoplastic insulation.

Wire a separate white (common) lead to each socket shell; and wire a colored lead, corresponding to the color code shown on the Plans, to each socket terminal. Provide leads of sufficient length to allow connection to the terminal block specified. Provide each complete signal head with a minimum 4-point terminal block, properly mounted in a signal section. Stud type terminal blocks shall have not less than 1/4-inch edge clearance to any portion of the stud. Exterior wiring shall have a 360-degree drip loop in advance of entering the head.

All new and existing cables shall be labeled in the cabinet, pole/pedestal bases and pull boxes using the convention of TDOT Standard Drawings. Each wire shall be identified by a circular plastic tag, 1 3/8” diameter with preprinted lettering of minimum ¼” height.

Tags shall be permanently fastened to wire by means of nylon self-clinching straps.

Marking shall indicate “GRD” for all ground and grounded neutral conductors.

Companion circuit conductors shall be marked “CKT” followed by the designated characters as shown on the plans.

P a g e 22 | 80

F. Pedestrian Signals Pedestrian signal heads shall meet the latest requirements published in the Equipment and Materials Standards of the Institute of Transportation Engineers (ITE) for Adjustable Face Pedestrian Signal Heads”, the National Electrical Code and be compatible with NEMA standards. The arrangement of pedestrian signal heads shall be mounted as shown on the Plans or as specified by the Engineer and be in accordance with the latest versions of the MUTCD and the TDOT Traffic Design Manual. The pedestrian indications including countdowns shall be LED symbols and in conformance with the Institute for Transportation Engineers (ITE) latest countdown and LED specifications. All LED indications shall have a five year warranty. In addition, where pedestrian signal heads are provided, they shall:

1. Include a pedestrian change interval countdown display where the calculated pedestrian change interval is more than 7 seconds;

2. Include Accessible Pedestrian Signals and pedestrian pushbuttons complying with

MUTCD Accessible Pedestrian Signals section;

3. Incorporate a locator tone meeting the requirements of the MUTCD Accessible

Pedestrian Signals;

4. include a pedestrian pushbutton with tactile vibrating arrow button and audible sound.

The pedestrian countdown display shall conform to the latest FCC regulation on Emission of Electronic Noise.

The manufacturer must supply certification, which includes a copy of the test report by an independent technical laboratory as to the compliance with ITE specifications (where it applies). The report shall also indicate that the tests were performed only after the modules received a thirty (30) minute operational warm-up period immediately preceding the tests.

The housing door, door latch, and hinges shall be of aluminum or polycarbonate or approved equal. Hinge pins shall be stainless steel. Provide the door with a neoprene gasket capable of making a weather resistant, dustproof seal when closed.

P a g e 23 | 80

All pedestrian signal heads, mountings, outside of hoods, and pedestrian push button housings shall have a powder coated finish (if aluminum) or colored resin (if polycarbonate) in accordance to MUTCD specifications. All pedestrian signals shall be painted with black enamel meeting or exceeding Federal Specifications TT-C595 Gloss Black. The interior of signal hoods shall have one or more coats of primer followed by two coats of Lusterless Black Enamel meeting or exceeding MPI Reference 94. Examine all factory enameled equipment and materials for damaged paint after installation and repaint such damaged surfaces to the Engineer's satisfaction. Factory applied enamel finish in good condition and of appropriate color shall be acceptable, as approved by the Engineer.

G. Signal Head Installation Install signal heads and pedestrian signal heads with the faces completely covered until the entire installation is ready for operation.

CONTROLLERS – GENERAL

730.25 Controllers

Furnish and install a shelf mounted NEMA TS2 traffic signal controller at locations shown on the plans. The Town of Farragut currently uses the McCain Omni eX Advanced Transportation Controller (ATC) NEMA controller with McCain Omni eX local control software. The controller mechanism shall meet or exceed the current NEMA Traffic Signal Systems Standard. Submit private laboratory certification that the proposed unit is in complete compliance with the most current NEMA standards.

Controller equipment shall be permanently marked with the manufacturer’s name or trademark, part number, and serial number.

Controllers must meet the following applicable industry standards and amendments:

1. NEMA TS2 Controller ........................... NEMA TS-2-2016

2. ATC Controller ................ AASHTO/ITE/NEMA ATC 5.2b

3. All NEMA TS2 and ATC controllers must provide functionality that meets or exceeds operational characteristics, including NTCIP support, as described in NEMA TS-2- 2016.

P a g e 24 | 80

4. NEMA TS2 Type 2 controllers shall be used when downward compatibility to existing TS1 cabinets is desired.

Except for replacing controllers in existing systems, all new installations must include controllers that capture high resolution event-based data elements to provide the automated traffic signal performance measures.

All new controller installations or replacements shall be integrated with the Town of Farragut’s central control software that is McCain Transparity software. Coordinate with the Town of Farragut to add the signal to the system database and graphical user interface. Test that communications are online to the signal through the software and that the upload/download of controller parameters are full functional.

The manufacturer must supply certification of the conformance to the above requirements at the time of the bid.

In addition to the above requirements, the controller shall:

5. Have all timing values entered via a front panel mounted keyboard. This keyboard shall be an integral part of the controller unit.

6. Have an English language menu for programming or reading all controller features.

7. Continue to operate the intersection as values are inspected or altered.

8. Include the ability to upload and/or download the controller software operating system and user programmed database to or from external media (datakey, usb, sd card etc).

9. Support Flashing Yellow Arrow for Permissive Left-turn Movements applications.

Communication Interfaces The controller shall have the following communication interfaces (at a minimum):

1. (2) SDLC ports

2. (2) Serial ports

3. (1) 2070 compatible communications modern slot

4. (2) 100 Base-T Ethernet ports, fully configurable

5. (2) High Speed USB (v2.0 or higher) ports

P a g e 25 | 80

Configuration The controller shall be programmed and configured to output connected vehicle SPaT (Signal Phase and Timing) messages that are fully compliant with SAE J2735 without the use of an external hardware interface.

Display

The controller shall have an auto-contrast LCD front Display.

Keyboard The controller shall have a keypad with individual buttons for all ten numerical digits, letters A-F direction arrows, escape, and enter, at a minimum.

Cabinet Interface The controller shall have the following cabinet interfaces (at a minimum):

1. NEMA TS2 Type 1 Port 1 (SDLC)

2. NEMA TS2 Type 2 A, B, C and D connectors (for TS1 cabinets only)

3. Serial Interface Unit

Environment The controller shall have an operating temperature range of -37ºC to +74ºC and humidity range of 0 to 95% (noncondensing).

Surge Protection Devices The cabinet shall have Surge Protective Devices (SPDs) for the main AC power input, all signal head field wiring terminals, interconnect cable terminals and loop lead-in cable terminals which are located in the cabinet. Furnish SPDs to provide effective defense against high transient voltages caused by lightning discharges or other sources. SPDs must be unobstructed and accessible from the front side of any panel used in the cabinet. The SPD for the main AC power input of the cabinet must be connected on the load side of the cabinet circuit breaker. SPDs must meet the following minimum requirements:

P a g e 26 | 80

1. AC power SPD:

a. Must be UL 1449 4th Edition Listed

b. Parallel connected device

c. UL Nominal Surge Rating (In): 20kA

d. UL Short Circuit Current Rating (SCCR): 150kA minimum

e. Surge current rating: 50kA per phase minimum

f. Visual status indication

g. Remote signalization contacts for monitoring purposes

h. 10 year manufacturer’s warranty minimum

2. DC power SPD:

a. Must be UL 1449 4th Edition recognized

b. Parallel connected device

c. UL Nominal Surge Rating (In): 10kA minimum

d. Must provide protection between all +/-/Gnd connections

e. Surge current rating: 20kA per phase minimum

f. Visual status indication

g. Remote signalization contacts for monitoring purposes

h. 10 year manufacturer’s warranty minimum

3. Data and communication SPD:

a. Must be UL 497B listed

b. 10 year manufacturer’s warranty minimum

4. Signal and interconnect cable field wiring terminal SPD:

a. Clamp the surge voltage to a level no greater than twice the peak operating voltage of the circuit being protected.

b. Withstand a surge current of 1000A with an 8 by 20 μs waveform six times (at 1 second intervals between surges) without damage to the suppressor.

c. 10 year manufacturer’s warranty minimum

5. Loop lead-in cable field wiring terminal SPD:

a. Protect the detector unit loop inputs against differential (between the loop lead) surges, and against common mode (between loop leads and ground) surges

b. Clamp the surge voltage to 25 V or less when subjected to repetitive 300A surges

c. Withstand repetitive 400A surges with an 8 by 20 μs waveform without damage

d. 10 year manufacturer’s warranty minimum

P a g e 27 | 80

All SPDs must be installed according to the SPD manufacturer’s instructions and not affect the operation of equipment.