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SP XXXX-XXInsert Date

This “sample” set of Signal System Special Provisions will require editing (add, delete, modify, update, etc.) prior to use on a specific project. Some of the paragraphs included in these special provisions are project specific and may not be required on every project. Use the language when appropriate based on the plan and as directed in RED text.

All RED text must be removed from the special provisions prior to the special provisions being submitted for project letting.

DIVISION SSTable of Contents

SS-1 (2565) REVISE SIGNAL SYSTEM........................................................................................................................2

SS-1.1 GENERAL................................................................................................................................................3

A Revise Existing Traffic Control Signal System..............................................................................................3

SS-1.2 MATERIALS.............................................................................................................................................3

A Department Provided Materials.................................................................................................................3

B Contractor Provided Equipment for Traffic Control Signal Cabinets...........................................................4

C Mast Arm Pole Standards and Luminaires..................................................................................................5

D Pedestal Slipfitter Collars and Pedestal Caps..............................................................................................5

E Cluster Head Adaptor.................................................................................................................................5

F Bi Modal Green and Yellow Arrow Signal Indications.................................................................................5

G Grease Filled Wire Nuts..............................................................................................................................6

H Accessible Pedestrian Signals (APS)............................................................................................................6

I Signal Service Cabinet, Type SSB (with Battery Back-up Equipment)........................................................12

J Signal Service Cabinet, Type SSB (without Battery Back-up Equipment)..................................................12

K Advance Warning Flashers (AWF).............................................................................................................12

SS-1.3 CONSTRUCTION REQUIREMENTS.........................................................................................................13

A Storing Materials......................................................................................................................................13

B Pick Up Department Provided Materials..................................................................................................13

C Installation of Department Provided Materials........................................................................................13

D Video Detection and Video Monitoring....................................................................................................14

E Splicing.....................................................................................................................................................14

F Maintenance of Existing Electrical Systems..............................................................................................14

G Traffic Signal Mast Arm Pole Installation..................................................................................................18

H Traffic Signal Mast Arm Pole Structural Bolting........................................................................................18

I Traffic Signal Mast Arm Pole Anchor Rod Tightening................................................................................18

J Single Nut Connection Anchor Rod Tightening.........................................................................................21

K Mast Arm Extension with Flange Brace....................................................................................................22

L Compliance with NEC Article 110. 24........................................................................................................22

M Install Salvaged Mast Arm Mounted Signs................................................................................................24

N Sign Panel Warning Stickers......................................................................................................................24

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O Remove and Dispose of Conduit...............................................................................................................24

P Remove and Salvage Traffic Control Signal Cabinet and Equipment.........................................................24

Q Remove and Salvage Battery Backup Service (SSB) Cabinet and Equipment............................................24

R Salvage Non-Intrusive Detection Equipment............................................................................................25

S Remove and Dispose Miscellaneous Structures.......................................................................................25

T As Built Drawings and GPS Coordinates....................................................................................................27

SS-1.4 MEASUREMENT....................................................................................................................................28

A Method of Measurement.........................................................................................................................28

SS-1.5 PAYMENT.............................................................................................................................................28

A Basis of Payment......................................................................................................................................28

SS-2 (2565) EMERGENCY VEHICLE PREEMPTION SYSTEM....................................................................................28

SS-2.1 GENERAL..............................................................................................................................................28

SS-2.2 MATERIALS...........................................................................................................................................28

SS-2.3 CONSTRUCTION REQUIREMENTS.........................................................................................................28

SS-1 (2565) REVISE SIGNAL SYSTEMThis Work consists of removing items of the existing traffic control signal system; Providing and

installing materials and electrical equipment; and installing Department furnished materials as specified, to provide a complete operating revise signal system at the intersection of T.H. ___ and __________ in ________, _______ County in accordance with MnDOT 2565; the current edition of the National Electrical Code; the Plans; and the following:

--- OR ---

This Work consists of removing and salvaging two existing traffic control signal systems; furnishing and installing materials and electrical equipment; and installing Department furnished materials as specified, to provide two complete operating new hardwire interconnected coordinated full-traffic-actuated traffic control signal systems as follows:

SYSTEM "A" - at the intersection of ______ (______) and ______ in ________, _______ County,

and

SYSTEM "B" - at the intersection of ______ (______) and ______ in ________, _______ County,

In accordance with MnDOT 2565; the current edition of theNational Electrical Code; the Plans; and the following:

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SS-1.1 GENERAL

A Revise Existing Traffic Control Signal System Revise the existing traffic control signal system as shown on the Plans and in accordance with the

following:

(1) Remove and dispose of items of the existing traffic control signal system not being reused in the revise signal system as required by the Plans and these Special Provisions.

(2) Incorporate into the revise signal system in place items of the existing traffic control signal system as shown on the Plans

(3) Install Department furnished traffic materials as specified (4) Provide and install new items as required on the Plans which includes the following:

(a) Concrete foundations(b) Mast arm pole standards(c) Signal service cabinet type: SSB(d) LED vehicle signal indications(e) LED pedestrian signal indications(f) Light emitting diode (LED) units for both new and in place vehicle signal

indications(g) Conduit and conduit fittings(h) Luminaires and luminaire extensions(i) Loop detectors(j) Traffic control signal electrical cables and conductors(k) Bonding and grounding materials

(5) Provide and install insulated spade lugs on conductors required to be terminated(6) Provide and install new labels to identify cables and conductors as required by the field

wiring diagram(7) Terminate cables and conductors as required to provide an operational revise signal

system to the satisfaction of the Engineer

Ensure Division S Special Provisions “As-Builts” are included in the Division S Special Provisions.This would include the pay item 2011.601.After the July 2015 Project letting date the As-Builts verbiage should automatically be included in Division S Special Provisions by MnDOT’s Project Management & Technical Support Office.

All Red text must be removed from the special provisions prior to the special provisions being submitted for project letting.

SS-1.2 MATERIALS

A Department Provided MaterialsThe Department provides at no cost to the Contractor, the following materials and electrical

equipment for the Contractor to install:

(1) One traffic control signal cabinet each complete with an actuated controller unit and signal control equipment

(2) Riser adaptor(3) Four sets of anchor rods, nuts, and washers per cabinet (one set includes one anchor,

one nut, and one washer)(4) Rubber gasket per cabinet installed between the bottom of the cabinet and the concrete

equipment pad

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(The following language is to be used for required warning stickers on the backside of sign panels being installed on the signal system project. See additional verbiage under construction requirements. The Specification Writer must include the appropriate contact person and phone number to the following paragraph).


(5) Department Provided Warning Stickers on New Sign Panels

The Department provides at no cost to the Contractor, warning stickers to be applied to new sign panels. Coordinate quantity required for the project with the Engineer.

Add the section below if video or radar detection is going to be used.Include companion verbiage in the construction requirements to the following section. The video detection system should be state supplied. The detection systems are on State Contract. The traffic signal control public interest finding (PIF) covers this type of detection so State supplying it should not be a problem.

Auto Scope Vision uses 4 conductor 18 AWG microwave and sonic detector cable 3815.2 C.14Gridsmart uses an Ethernet cable with power over Ethernet. Ethernet Cable (Outside Plant) 3815.2 C.6.dIteris Vantage Next uses an Ethernet cable with power over Ethernet. Ethernet Cable (Outside Plant) 3815.2 C.6. d.Miovision uses an Ethernet cable with power over Ethernet. Ethernet Cable (Outside Plant) 3815.2 C.6. d.

The naming convention on the plan for the Cat 5e cable is as follows:1-CAT 5E XXXXXXXXXX where XXXXXXXXXX describes the purpose of the cable.

The video detection system to be installed and used at the intersection should be decided at the signal design phase so the correct cable can be called for and shown on the plan. Either Cat 5 E or 4/C 18 AWG

Use the language when appropriate based on the plan and as directed in RED text.


(6) Video detection(7) Radar detection(8) Non-Intrusive detection processors

B Contractor Provided Equipment for Traffic Control Signal Cabinets Contractor provided equipment for traffic control cabinets when specified includes EVP phase

selectors and APS central control units.

Deliver equipment for integration into the Department provided traffic control signal cabinet at least 30 Business Days in advance of needing the traffic control signal cabinet on the Project to the following address:

MnDOT Electrical Services Section (ESS)6000 Minnehaha AvenueSt. Paul, MN. 55111- 4014

To ensure integration into the correct signal cabinet, before delivery to ESS, label the equipment packaging with the following:

Assigned Traffic Engineering (TE) Number________________State Project Number_____________Contractor name_______________________Contact name and phone number_____________________

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Notify ESS at least 3 Business Days in advance before delivering the equipment. Have the TE Number on hand before calling. Contact the following in the order listed until notification has been received:

Electronic Maintenance Supervisor 651-366-5759Stockroom 651-366-5720Transportation Program Supervisor 651-366-5734

C Buy AmericaUse domestically manufactured products that are composed predominately of steel, iron, or both

for the permanent installation of MnDOT electrical systems in accordance with 23 CFR 635.410 Buy American requirements.

During the product quotation stage, inform the manufacturer that steel, and iron product must meet the Buy America requirements in accordance with 23 CFR 635.410 for either State funded or federal aid Projects. MnDOT electrical systems products required to meet Buy America include the following:

(1) Anchor Rods, Anchor Rod Templates, and Hardware(2) Stainless Steel and Steel Light Poles(3) Traffic Signal Mast Arm Poles and Bases(4) Steel Screw-in Light Foundations(5) PVC Coated RSC and Steel Fittings(6) PVC Coated Junction Boxes(7) PVC Coated Cast Steel Expansion and Deflection Fittings (23 CFR 635 Notice of

nationwide waiver of Buy America for Pig Iron)(8) Pole Mounting Adapter(9) Navigation Light Swing Arm(10) Steel Vertical Mount Tenon Adapters (11) Teflon Coated F436 Structural Washers

Exceptions to the Buy America requirements are existing materials salvaged and installed within the Project Site, and materials required for maintenance or temporary installations on the Project.

C.1 Verifying Compliance with Buy AmericaFor verifying compliance with Buy America requirements, obtain from the manufacturer

two out of the three following documents:

Mill Test Report (MTR) issued and signed by the fabricator stating that the materials subject to Buy America were melted and manufactured in the United States, written certifications from factory

Written certification on company letterhead and signed by an authorized representative from manufacturers providing additional treatment to the fabricated material (blasting, coating) stating the treatment process occurred in the United States

Written certification on company letterhead and signed by an authorized manufacturer representative, declaring the supplied materials subject to Buy America requirements fully meet.

Submit documentation to the Engineer.

D Low Profile Hydraulic Torque WrenchUse an approved low profile hydraulic torque wrench listed on MnDOT’s APL for Lighting “Low

profile hydraulic torque wrench” on the top nuts to tighten PA and BA traffic signal mast arm pole anchor rods to the required torque values specified in the MnDOT Anchor Rod Tightening Handbook. Use a working handheld digital pendant or, digital or analog gauge with the low-profile hydraulic torque wrench

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to ensure specified torque values have been met and can be verified in foot pounds by the installer and inspector during the tightening process.

If the gauge display is in pounds per square inch (PSI), convert PSI to foot pounds and ensure the calculations are correct. Submit the PSI to foot pounds converted values to the Engineer before installing the poles. The submittal and Engineer’s review does not relieve responsibility for tightening anchor rods to the required torque values.

Obtain Engineer’s approval of the wrench and provide proof of calibration done in the last 12 months from an accredited calibration service before installing the poles.

E Signal Head Pedestal PoleProvide a signal head pedestal pole and base listed on MnDOT’s APL for Signals instead of a

Pedestal and Pedestal Base Standard Plate 8122.

F PA Traffic Signal Mast Arm and Transformer Base Bolting HardwareProvide heavy hex heads bolts with nuts in accordance with Standard Plate No. 8121 and

Standard Plate No. 8123, except do not provide and install lock washers.

Provide an F436 structural washer per heavy hex head bolt.

If the district is going to use the 5 foot mast arm extension include the following language. The most likely scenario for this products use is flashing Yellow arrow. The FYA sign can be mounted on this extension.


G Mast Arm Pole Standards and LuminairesProvide mast arm poles and LED luminaires in accordance with MnDOT 2565, 3810, and 3831,

and as follows:

(1) Mast Arm Extension with Flange Brace(2) Provide and install mast arm extensions with flange brace as shown on the Plans(3) MnDOT approved mast arm extensions with flange brace are listed on MnDOT’s APL for

Signals:

http://www.dot.state.mn.us/products/index.html

H Pedestal Slipfitter Collars and Pedestal CapsIf you are going to replace pedestal mounted signal heads with bracketing use the following language for a slipfitter collar


Provide pedestal slipfitter collars as detailed in accordance with MnDOT 3832.2C8 and Standard Plate 8111 atop each pedestal shaft when a pedestrian signal indication is installed on the top of the pedestal shaft or when signal head bracketing is used.

If you are going to replace pedestal mounted signal heads and no longer use signal bracketing but rather use straight mount plumbizers than use the following paragraph instead of slipfitter collars


Provide aluminum pedestal caps in accordance with 3832.2C.7 atop each pedestal shaft when straight mount plumbizers are used for signal and pedestrian head mounting.

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The following language needs to be included if you are designing a signal system with flashing yellow arrow (FYA) with a combined thru and left turn lane. An additional application would be HAWK Pedestrian type ped crossing.


I Cluster Head AdaptorProvide Cluster head adaptors at locations as shown on the Plan.

Use MnDOT approved cluster head adaptors listed on MnDOT’s APL for Signals:

http://www.dot.state.mn.us/products/index.htmlThe following language needs to be included if you are designing a signal system with flashing yellow arrow (FYA) with a combined thru and left turn lane. This indication is only intended to be used in this application.


J Bi Modal Green and Yellow Arrow Signal IndicationsProvide green and yellow bi-modal signal indications at locations as shown on the Plan.

Use MnDOT approved bi-modal signal indications listed on MnDOT’s APL for Signals:

http://www.dot.state.mn.us/products/index.html

K Grease Filled Wire NutsProvide NRTL listed and labeled grease filled wire nuts to insulate and seal individual splices of

signal control cable meeting the following requirements:

(1) Pre-filled twist-on wire connector(2) Silicone based sealant(3) UL 486C listed and labeled(4) UL 486D listed for direct burial(5) UL 94V-2 Flame Rating(6) CSA-C22.2 NO. 188 listed(7) CSA-C22.2 NO. 198.2 listed for direct burial(8) RoHS Compliant(9) Sized in accordance with the intended conductors being spliced

L Accessible Pedestrian Signals (APS)Audible Pedestrian Push Button Units and Associated Traffic Control Signal Cabinet Equipment

Provide Accessible Pedestrian Signals in accordance with MnDOT 3833 and as follows:

The APS manufacturer provided voice messages in each button as defined in this section.

Ensure that the order form below is presented to the Accessible Pedestrian Signal (APS) manufacturer, so the appropriate Braille message is added to the pedestrian information sign and the correct voice messages are programmed in the pedestrian push buttons.

The following order form must be filled out by the special provision’s writer before inclusion in the final set of special provisions. The order form should be left as separate pages so they can be removed.

All RED text must be removed from the special provisions prior to the Special Provisions being submitted for project letting.

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Accessible Pedestrian Signal (APS)

ORDER FORM(Fill out one form per intersection)

Intersection:System I.D. ___________ T.E. No. ___________ Total Number of Pedestrian Push Buttons _____ Field Wiring Interface Board: One needed for each intersection Qty: 1

CCU (Central Control Unit): One needed for each intersection Qty: 1

Push Button and Sign Braille InformationButton Arrow Direction R/L Street Name

(Street Being Crossed)PB2-1 PB2-1PB2-2 PB2-2PB2-3 PB2-3PB2-4 PB2-4PB4-1 PB4-1PB4-2 PB4-2PB4-3 PB4-3PB4-4 PB4-4PB6-1 PB6-1PB6-2 PB6-2PB6-3 PB6-3PB6-4 PB6-4PB8-1 PB8-1PB8-2 PB8-2PB8-3 PB8-3PB8-4 PB8-4

Custom Voice Message Details

Voice on Location and Walk Message(s) Please give phonetic pronunciation on difficult street names so that the message will be recorded correctly. *Note that unless Street, Drive, Avenue etc.…are necessary for intersection identification, it is recommended to not include them in the verbal message.

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PB2-1Wait Message: Wait to Cross at

(Street Being Crossed) (Intersecting Street)Walk Message: Walk sign

is on to cross

(Street Being Crossed) (Street Being Crossed)



is on to cross




is on to cross




is on to cross



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is on to cross




is on to cross




is on to cross




is on to cross



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is on to cross




is on to cross




is on to cross




is on to cross



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is on to cross




is on to cross




is on to cross




is on to cross



Walk Interval MessagesModel message for the walk interval, applicable to most intersections.“Howard. Walk sign is on to cross Howard.”

Pushbutton Informational MessagesModel message for pushbutton intersection identification information.“Wait to cross Howard at Grand.”


M Signal Service Cabinet, Type SSB (with Battery Back-up Equipment) Use this paragraph if the District wants a complete SSB cabinet with a battery backup system. The spec writer needs to use this or the other paragraph for an SSB Service cabinet.


Provide a signal service cabinet in accordance with MnDOT 3837.2A.7 and as follows:

Type SSB with battery back-up equipment which includes an inverter, batteries, bypass switch and external strobe.

Use this paragraph if the District wants a SSB cabinet without batteries, inverter, and bypass switch. The SSB service cabinet will not have any back up capabilities. The backup system can be added later to the standard SSB cabinet that would be provided using this paragraph. The spec writer needs to use this or the other paragraph for an SSB Service cabinet.

All RED text must be removed from the special provisions prior to the special provisions being submitted for project letting

N Signal Service Cabinet, Type SSB (without Battery Back-up Equipment) Provide a signal service cabinet in accordance with MnDOT 3837.2A.7 except the following:

(1) Inverter(2) Batteries(3) Bypass Switch(4) External Strobe

Type SSB without battery backup equipment. Do not provide an inverter, batteries, bypass switch or external strobe.

O Advance Warning Flashers (AWF)Provide signal head pedestal poles listed on MnDOT’s APL for Signals., MnDOT 2565, 3832, and

as shown on the Plan.

Provide materials and electrical equipment to install on four complete operating advance warning flashers (Signal Base No.'s __, __, __, and __) at the locations shown on the Plans, in accordance with the "ADVANCE WARNING FLASHER DETAILS" and the following:

(1) Signal head pedestal poles listed on MnDOT’s APL for Signals.(2) Flashing Beacon Assemblies meeting the following:

(a) 12 inch, polycarbonate vehicle signal heads for flashing beacon assemblies in accordance with 3834.

(b) 12 inch "Yellow" signal indications in accordance with MnDOT 3834 (c) Permanent label affixed to the back of each "yellow" flasher indication

indicating the date of installation in accordance with 2565.3K.6 (d) A cut away visor and background shield as shown on the Plans

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(e) Flasher beacons attached as shown the Plans

(3) An aluminum flashing beacon assembly bracketing with anodic coating as per MIL-A-8625C for Type II, Class I Coating

(4) 4/c 14 AWG signal control cable in accordance MnDOT 3815.2 between the terminal block or pole base connector in the pedestal base and each flashing beacon atop the advance warning flasher assembly

(5) W3-X4 (PREPARE TO STOP WHEN FLASHING) signs in accordance with 2564

Mount each sign as shown on the Plans.

SS-1.3 CONSTRUCTION REQUIREMENTS

A Storing Materials

Store and handle Materials in accordance with 1606 “Storage of Materials”, 1607 “Handling Materials” and the manufacturer’s requirements.

Modify the following paragraph for the contractor to return the MnDOT pallet to a specific location.

All RED text must be removed from the special provisions prior to the Special Provisions being submitted for project letting.

B Pick Up Department Provided Materials Pick up materials and electrical equipment from:

MnDOT’s Electrical Services Section,6000 Minnehaha Avenue,St. Paul, MN. 55111- 4014.

Follow these requirements:

(1) Request from the Electrical Services Section the materials and electrical equipment listed in Contract Documents.

(2) Direct MnDOT’s Electrical Services Section to the T.E. Request No. ______. (3) Request Department provided materials at least 30 business days in advance of needing

the material on the project. (4) Notify MnDOT’s Electrical Services Section at least 3 business days in advance of

intention to pick up materials and electrical equipment. Contact:

Electronic Maintenance Supervisor 651 366 5759Stockroom 651 366 5720Transportation Program Supervisor 651 366 5753

(5) Pick up the Department provided materials and electrical equipment at the above specified location and transport them to the job site

(6) Secure each cabinet in an upright position when transporting to the job site. Ensure that each cabinet being transported will not tip and be damaged

Notify the Engineer in advance of contacting MnDOT’s Electrical Services Section.

C Installation of Department Provided MaterialsInstall the Department provided traffic control signal cabinets each complete with actuated

controller unit and all required signal control equipment.

For a complete operating traffic control signal cabinet installation, provide and install materials and electrical equipment including the following:

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(1) A cabinet concrete foundation as part of the equipment pad concrete foundation using Department provided anchor rods, nuts, and washers

(2) Bonding and grounding materials and connections(3) Field conductor connections in each traffic control signal cabinet as directed by the

Engineer to make each traffic control signal system operational.

Protect the Department provided cabinet pallet from damage and return the pallet to MnDOT Central Electrical Inventory Center at the address specified elsewhere in these Special Provisions.

Add the text below if the signal system has video detection.There should also be companion verbiage in the materials section above. Use the language when appropriate based on the plan and as directed in RED text. All RED text must be removed from the special provisions prior to the special provisions being submitted for project letting.

D Video Detection and Video MonitoringInstall traffic signal high definition video detection systems at the locations shown on the Plan

and the following:

D.1 Cat5e Cable Testing (1) Test the terminated cable to ensure network traffic performance requirements

in accordance with the most current edition of the IEEE802.3ab standard(2) Use Ideal Networks SignalTEK NT (R156005) or MnDOT approved equal for

cable testing and qualification(3) Repair or replace failing cable

D.2 Video Detection Camera Installation(1) Aim each camera for optimal field of view and detector placement at each

specific approach(2) Install continuous unspliced Cat 5 E cable or radar detector cable(3) Zoom and focus the cameras to provide proper imaging of the approaches(4) Program video image detection zones as shown on the Plan(5) Verify with MnDOT’s district traffic office

(a) Aim each camera for optimal field of view and detector placement at each specific approach

(b) Ensure detection zones are working correctly(c) Live video images show the detection zones properly overlaid and

operating

E SplicingInstall grease filled wire nuts for splicing signal control cable in the base of the pole.

F Maintenance of Existing Electrical SystemsMaintain and keep in operation new and existing electrical systems in accordance with 2565.3B

and as follows:

Locate underground facilities of existing traffic control signal systems including temporary, and newly constructed signal systems within the limits of the construction project, for the duration of the construction project in accordance with the applicable provisions of MnDOT 1514 and in accordance with Minnesota State Statute 216D.

Responsibility for locating underground traffic control signal system facilities is transferred from the Department to the Contractor on the Project start date as shown on the Proposal.

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Request at the start of the Project for MnDOT’s locating group to provide an initial locate of the underground traffic control signal system facilities within the project limits. Submit initial locate requests to MnDOT’s Locating Office a minimum of 4 business days before the Project start date.

Locate requests that are within the construction Project limits will continue to be received by MnDOT’s Locating Office. These locate tickets will be forwarded to the Contractor’s representative responsible for coordinating locate requests within the project’s limits. The locate tickets will be forwarded via email or fax. Confirm receipt of the locate ticket by notifying MnDOT’s locating office within 2 hours of MnDOT sending the locate request.

Repair traffic control signal system facilities damaged as the result of improperly located or unmarked underground traffic control signal system facilities within the project limits.

Repair the damaged underground traffic control signal system facilities in accordance with 2545.3A, 2565.3B and RTMC design and construction requirements.

Before an authorized Work suspension begins, ensure existing, temporary, and new electrical systems are in full working order in accordance with the Contract. Maintenance and operations of electrical systems will not be suspended until the following requirements have been met:

(1) Remedy electrical Work deemed unsafe by the Engineer(2) Notify ESS, MnDOT Locating Office, and the district traffic office of Work suspension

start and stop dates(3) Schedule and provide a walk through with ESS and the district traffic office(4) Locate the underground system with paint, stakes, and flags upon request(5) Provide and install marker ball locators in handholes and underground enclosures(6) Submit to the Engineer a current As-Built redlined drawing of the electrical systems

(existing, temporary, and new)(7) Cover and clearly mark above ground splices not protected by a structure(8) Electrical components and devices are in working order

Due to the nature of electrical systems, Partial Acceptance will not be granted because of an authorized Work suspension unless the new electrical system Work has been completed and inspected in accordance with the Contract and the new system is fully operational.

During periods of authorized Work suspension, the Department will perform routine maintenance and GSOC locate requests on the Project in accordance with 1514 “Maintenance During Construction”.

When resuming Work after authorized Work suspension, remove temporary construction or Materials that the Department used to maintain the electrical system during the suspension. This Work is included in the Unit Prices of the Pay Items that are part of the Traffic Control Signal System.

Submit to the Engineer a completed Locating Responsibility Form included in this section, with contact information including the names and telephone numbers for 24 hours a day, 7 days a week maintenance as defined in this section.

Until final written acceptance of the Project by the Engineer (MnDOT 1716), locate underground traffic control signal facilities as required in this section. This Work is included in the Unit Prices of the Pay Items Traffic Control Signal System.

Notify MnDOT’s Locating Office to provide contact information and establish assumed responsibility for locating MnDOT’s underground traffic control signal system facilities within the Project. Fill out the form in this section and submit to the Engineer at the pre-construction meeting. Send a copy of the completed form to:

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Electrical Services Dispatch Phone: (651)366-5750Fax: (651)366-5742E mail: [email protected] Minnehaha Ave. St. Paul, MN 55111-4014andLocating Supervisor Phone: (651)755-9061Fax: (651)366-5742E mail: [email protected] Minnehaha Ave. St. Paul, MN 55111-4014

(The following Section should be filled out by the specification writer to direct the contractor and project engineer to the correct person in the District.All Red text must be removed from the special provisions prior to the special provisions being submitted for project letting.

MnDOT District Signal Operations Name: _______________Phone: _______________Fax: _________________E mail: _______________Address: ______________Until final written acceptance of the project by the Engineer (MnDOT 1716) locate underground

traffic control signal facilities as required above.

(The following Section should be left on its own page so the contractor can remove it and use the blank page)All Red text must be removed from the special provisions prior to the special provisions being submitted for project letting.

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Locating Responsibility FormJob S.P. Number __________________________________

Job Type __________________________________

Start Date __________________________________

End Date __________________________________

T.H. __________________________________

Location __________________________________

Lighting/ Signal Inspector __________________________________

Contractor __________________________________

Contractor (24 Hour Contact) __________________________________

Project Manager __________________________________

Phone Number __________________________________

Fax Number __________________________________

Email __________________________________

Electrician __________________________________

Phone Number __________________________________

Locator Area __________________________________

Project Engineer __________________________________

Phone Number __________________________________

Chief Inspector __________________________________

Phone Number __________________________________

Weekly Meeting __________________________________


G Traffic Signal Mast Arm Pole InstallationInstall traffic signal mast arm poles in accordance with 2565.3O “Traffic Signal Mast Arm Pole

Installation”, and the following.

If equipment downtime is a concern for meeting completion of the pole installation process in accordance with 2545.3H “Pole Installation”, then provide at least two crews; one crew to stand the pole and the other crew to complete the anchor rod tightening procedure in accordance with the Contract Documents on the same day of standing the pole.

Erect structural steel members in a manner that will provide safety to workers, Inspectors, the public, and without damaging the steel members.

H Traffic Signal Mast Arm Pole Structural Bolting Use high strength bolts with F436 structural hardened washers placed under the bolt head and

nut being turned during tightening for bolting mast arms and transformer bases to the poles. Do not use lock washers in the bolted connections.

Before structural bolt tightening of mast arms, luminaire extensions (plate to plate connections), and pole bases to the poles, ensure the slope of surfaces and bolted parts in contact with the bolt head and nut is no greater than 1:20 with respect to a plane normal to the bolt axis. Ensure the joint surfaces including bolt heads, nuts and washers are free of scale, dirt, loose scale, burrs, foreign material, and other defects that would prevent solid seating of parts.

Before assembling bolted connections, ensure bolt and nut threads, and the face of the nuts and underside of the bolt heads being turned into the F436 washers are lubricated with an approved anti-seize lubricant in accordance with 3842.A,

Place a calibrated torque wrench on the nuts to tighten the bolts to the required torque values shown on Table SS-2.3-1. Tighten bolts in steps of 20%, 60% and 100% of the required torque value respectively and use a cross tightening pattern for each step. Allow the bolts to relax for 10 minutes and retighten to 100.

Table SS-2.3-1ASTM A325 and ASTM A354 Bolts

Bolt Diameterinches

20% 60% 100%Required Torque for Tightening Lubricated Bolts, ft. Lbs.

1/2 10 30 553/4 40 120 2007/8 60 190 3201 ½ 300 900 15001 ¾ 550 1650 2800

I Traffic Signal Mast Arm Pole Anchor Rod Tightening Tighten traffic signal mast arm pole anchor rods in accordance with the MnDOT Anchor Rod

Tightening Handbook “New Installation Procedures” and the MnDOT Anchor Rod Tightening Form.

Use the required low- profile hydraulic torque wrench on the top nuts to tighten anchor rods to the required torque values specified in the MnDOT Anchor Rod Tightening Handbook. Obtain Engineer’s approval of the wrench and provide proof of calibration performed within the last 12 months from an accredited calibration service before installing traffic signal mast arm poles.

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Complete a MnDOT Anchor Rod Tightening Form for each traffic signal mast arm pole. Submit completed forms to the Engineer.

Keep the form on the next page on a separate page so the contractor can remove it from the special provisions and use it in the field.


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Follow the hyperlinks below for the MnDOT anchor rod tightening handbook and the correct tightening form.

MnDOT Anchor Rod Tightening Handbook (pdf)

MnDOT Anchor Rod Tightening Form – For Traffic Signal and Light Poles (pdf)

J Single Nut Connection Anchor Rod Tightening Tighten traffic signal structures that use single nut connection anchor rods in accordance with the

manufacturer’s installation requirements and the following.

Structure bases requiring single-nut anchor rod connections are set directly on the foundation without leveling nuts. One hex nut for each ancho rod is used to fasten the base to the foundation anchor rods. Use washers in the connections in accordance with the manufacturer’s installation instructions.

Use leveling shims in accordance with Standard Plate 8129 when required to level the structure base on the foundation.

MnDOT traffic signal structures that require single nut connection installation includes the following:

(1) Pedestal and Pedestal Base Standard Plate No. 8122(2) APS Push Button Station (3) Tapered Traffic Signal Pedestal Pole

Apply an approved anti-seize lubricant in accordance with 3842.A to the top threads of the anchor rods, to the threads of the nuts, and to the face of the nuts that turn into the washers.

Using a calibrated torque wrench, tighten the anchor rods in three passes of 20%, 60% and 100% of the required torque values respectively and in a cross- tightening pattern for each pass. After tightening to 100% torque, let the anchor rods relax for 10 minutes then re-tighten in a cross- tightening pattern to 100% of the torque value. Tighten anchor rods for single nut connections to the required torque values shown in Table SS-2.3-2.

If the district is going to use the 5 foot mast arm

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Table SS-2.3-2Single Nut Connection Anchor Rods-Traffic Signal Structures

Structure Type

20% 60% 100%

Required Torque Tightening Values-ft. Lbs

APS Push Button Station

12 36 60

Pedestal and Pedestal Base Standard Plate

No. 8122

18 54 90

Tapered Traffic Signal Pedestal Pole

30 90 150

https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=10967559

https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=11138998


extension include the verbiage below. The most likely scenario for this products use is flashing Yellow arrow. The FYA sign can be mounted on this extension.


K Mast Arm Extension with Flange BraceInstall the mast arm extension and flange brace according to manufacturer’s installation

instructions.

Cut mast arm extension to length to center the signal head on the driving lane.

L Compliance with NEC Article 110. 24Provide fault current calculations in accordance with 2565.3Z and as follows:

Fill out the following Electric Service Information Form for Traffic Control Signal Systems.

Provide to the Engineer, before final acceptance of the project, four copies of the Electric Service Information Form for Traffic Control Signal Systems and the Engineer will distribute the copies as follows:

MnDOT Electrical Services SectionMnDOT Traffic Electrical Systems EngineerMnDOT District Traffic EngineerCity of _________ or County of________

The Contractor provided "Electric Service Information Form for Traffic Control Signal Systems" and available fault current calculations and labeling are included in the Unit Prices of the Pay Items that are part of the Traffic Control Signal System.

(The following form should be left on its own page so it can be removed from the special provisions and used by the contractor) See the next page of this document


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M Install Salvaged Mast Arm Mounted SignsSalvage and re-install mast arm mounted sign panels on the traffic control signal mast arms at

the locations shown on the Plans. If required by the Engineer, provide new mounting brackets and mounting hardware for each salvaged sign panel.

This Work is included in the Unit Price of the Pay Item No. 2565.616 (REVISE SIGNAL SYSTEM).

(The following language is to be used for required warning stickers on the backside of sign panels being installed on the revised signal system project. The Specification Writer must include the appropriate contact person and phone number to the following paragraph).


N Sign Panel Warning StickersInstall Department furnished warning stickers on new sign panels in accordance with MnDOT

2564.3Q. Provide 30 Business Days advance notice to___________________ at ___-___-____ before picking up the Department furnished warning stickers.

O Remove and Dispose of ConduitExcept under roadway surfaces, remove and dispose of the existing traffic control signal system

underground conduit, unless otherwise specified in Contract Documents or directed by the Engineer.

Abandon the existing conduit under roadway surfaces, unless otherwise specified in Contract Documents or directed by the Engineer.

P Remove and Salvage Traffic Control Signal Cabinet and EquipmentTo ensure proper care and prevent damage during removal, handling and shipping of control

signal cabinets and equipment, provide in order the following:

(1) De-energize the traffic control cabinet and equipment (2) Disconnect the power conductors (3) Unplug and remove removable control equipment including the controller unit, detector

amplifier units, conflict monitor, and load switches from the cabinet. (4) Package and secure the removed control equipment in a method and manner that

prevents damage to the equipment during handling and shipping (5) Coil together the connecting harnesses of the removed equipment (6) Fasten and secure the harnesses to a cabinet shelf in a method and manner that

prevents the harnesses from being damaged when closing the cabinet door and from falling through the bottom of the cabinet during removal, handling, and shipping

(7) Secure the cabinet in an upright position when removing, handling, and shipping

Q Remove and Salvage Battery Backup Service (SSB) Cabinet and EquipmentTo ensure proper care and prevent damage during removal, handling and shipping of control

signal cabinets and equipment, provide in order the following:

(1) De-energize the SSB cabinet and equipment (2) Disconnect the power conductors (3) Remove the batteries and uninterrupted power supply (UPS) from the cabinet(4) Package and secure the removed batteries and UPS in method and manner that

prevents damage to the equipment during handling and shipping (5) Coil together the harnesses (6) Fasten and secure the harnesses to a cabinet shelf in a method and manner that

prevents the harnesses from being damaged (7) Secure the cabinet in an upright position when removing, handling, and shipping

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(8) Return the salvaged SSB cabinet to MnDOT’s Electrical Services Section. 6000 Minnehaha Ave, St Paul Minnesota, 55111-4059

(9) Ensure the Department issues a comprehensive receipt for items salvaged.

R Salvage Non-Intrusive Detection EquipmentTo ensure proper care and prevent damage during removal, handling, and shipping of Non-

Intrusive detection equipment, provide in order the following:

(1) De-energize the equipment (2) Remove the power and interface conductors(3) Package the equipment to prevent damage during shipment.

S Removal OperationsRemove in place Materials as specified on the Plans.

Remove in-place conduit systems, cables and conductors as shown on the Plans except under roadway surfaces and within two feet of the Roadbed.

Except under roadway surfaces and within two feet of the Roadbed, remove in-place conduit systems, cables and conductors no longer in service that are not shown on the Plans for removal. This Work will be paid for as Extra Work in accordance with 1402.5 “Extra Work”.

Do not Abandon the in-place conduit systems, cables and conductors unless it has been determined by the Engineer, ESS, and the district traffic office that removal operations would have a direct negative impact on a structure, facility, or vegetation listed in 2572.3A “Protecting and Preserving”.

Backfill trenches, holes, and depressions caused by removal operations in accordance with 2104.3E “Backfilling Depressions”.

Destroy removed structures not containing lead by rendering them unusable to the satisfaction of the Engineer before disposing.

Dispose of Materials in accordance with 2104.3D “Disposal of Materials and Debris”.

Submit to the Engineer a receipt from the facility where Materials were delivered and disposed of or recycled.

The Office of Environmental Stewardship sets the policy and procedures for regulated materials management.

Follow the links below to obtain the current work order form and the list of approved waste contractors.

http://www.dot.state.mn.us/environment/regulatedmaterials/wastemgmt.html

Hazardous Waste Work Order Form (Word)

MnDOT approved list of waste contractors (Word)

Include the following section when materials being removed have peeling or flaking lead based paint. It is the district traffic office’s responsibility to know if the peeling or flaking paint is lead based before including this section in the Special Provision. This is to ensure contractors bid this work accordingly for the project.

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BEFORE INCLUDING THE FOLLOWING SECTION, first determine if the materials being removed on the project have peeling or flaking paint. If unsure the peeling or flaking paint is lead based then contact OES (Environmental Modeling and Testing Unit, Fort Snelling) to perform testing by completing and submitting a “Work request form” found at: http://ihub/environmental-modeling/index.html


S.1 Materials with Lead Based PaintHandle, transport, and dispose of lead-based painted Materials as follows:

(1) Read, certify understanding, and agree to abide to the requirements in OSHA 29 CFR 1926.62 and Minnesota Rules Chapter 5206, 7025, 7035, 7045 relating to the removal and disposal of lead based painted Materials as regulated waste at a MnDOT approved waste contractor. See regulated waste contractors list at:


(2) Handle, transport, and dispose of Materials with peeling or flaking lead-based paint as hazardous waste in accordance with Occupational Safety & Health Administration (OSHA) and the Minnesota Pollution Control Agency (MPCA) regulations. Peeling or flaking lead based paint chips are required to be collected onsite and disposed of by a MnDOT approved hazardous waste contractor.

(3) Submit to the Engineer a completed “Transfer of Ownership” found at:http://www.dot.state.mn.us/environment/regulatedmaterials/ownership.html

Follow the links below to obtain the current work order form and the list of approved waste contractors.


Hazardous Waste Work Order Form (Word)

MnDOT approved list of waste contractors (Word)

Ensure Division S Special Provisions “As-Builts” are included in the Division S Special Provisions.This would include the pay item 2011.601.After the July 2015 Project letting date the As-Builts verbiage should automatically be included in Division S Special Provisions by MnDOT’s Project Management & Technical Support Office.The District needs to include the verbiage below to trigger installation of Divisions S Special Provisions. This should be done on every signal and lighting project.

T As Built Drawings and GPS CoordinatesAs Built drawings and GPS coordinates in accordance with Division S Special Provisions “As-

Builts” including Pay Item No. 2011.601 (As-builts).

SS-1.4 MEASUREMENT

A Method of MeasurementRemoving items of the existing traffic control signal system; furnishing and installing materials

and electrical equipment; and installing Department furnished materials as specified, to provide a complete operating revise signal system at the intersection of T.H. ___ and _______ in ______, ________

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http://www.dot.state.mn.us/environment/regulatedmaterials/ownership.html



County as contained in these Special Provisions and as shown on the Plans will be measured as an integral unit complete in place.

SS-1.5 PAYMENT

A Basis of PaymentRemoving items of the existing traffic control signal system; furnishing and installing materials

and electrical equipment; and installing Department furnished materials to provide a complete operating revise signal system at the intersection of T.H. ___ and _______ in ______, ________ County as contained in these Special Provisions and as shown on the Plans will be paid for under Item No. 2565.616 (REVISE SIGNAL SYSTEM) at the Contract price per SYSTEM.

SS-2 (2565) EMERGENCY VEHICLE PREEMPTION SYSTEMThis Work consists of furnishing and installing emergency vehicle preemption (EVP) system at the

intersection of ______ (______) and ______ in ________, _______ County in accordance with MnDOT 2565; as shown on the Plans; and the following:

SS-2.1 GENERAL(None)

SS-2.2 MATERIALSProvide Emergency Vehicle Preemption (EVP) equipment in accordance with MnDOT 2565 and

3814. Phase selectors (or other EVP equipment to be installed in the traffic control signal cabinet) will be installed in the Department furnished cabinet by MnDOT personnel.

Deliver EVP phase selectors or other required EVP equipment to be installed in the traffic control signal cabinet to the Department at MnDOT’s Electrical Services Section for installation into the Department furnished traffic control signal cabinet. Provide the equipment at least 30 Business Days in advance of when the Department furnished traffic control signal cabinet is required on the job site.

SS-2.3 CONSTRUCTION REQUIREMENTSPlace in accordance with 2565.3.

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