FOXBOROUGH-MIDDLEBOROUGH-NORTON-616276-136791-A-3.pdf

Ten Park Plaza, Suite 4160, Boston, MA 02116 Tel: 857-368-4636, TTY: 857-368-0655 mass.gov/massdot

October 20, 2026

616276-136791

ADDENDUM NO. 3

To Prospective Bidders and Others on:

FOXBOROUGH-MIDDLEBOROUGH-NORTON

Federal Aid Project No. STP(BR-OFF)-004S(017)X

Bridge Preservation Along I-495, F-06-023, M-18-042, M-18-043, N-23-026, N-23-027 &N-23-034

OPENING OF PROPOSALS POSTPONED TO: TUESDAY, NOVEMBER 3, 2026 at 2:00 P.M.

Transmitting revisions to the Contract Documents as follows:

QUESTIONS AND RESPONSES: Four pages.

COVER PAGE: Revised cover page.

DOCUMENT 00010: Revised page 1.

DOCUMENT 00104: Revised pages 1 and 3.

DOCUMENT 00715: Deleted document in its entirety and inserted new document (22 pages).

DOCUMENT A00803: Revised pages 59 and 61.

DOCUMENT B00420: Revised pages 9, 10 and 11.

Take note of the above, substitute the revised pages for the originals, delete the document indicated, insert the new document in proper order, and acknowledge Addendum No. 3 in your Expedite Proposal file before submitting your bid.

Very truly yours, Eric M. Cardone, P.E.

Construction Contracts Engineer

CS

cc: Albin Napit, Project Manager

THIS PAGE IS INTENTIONALLY LEFT BLANK

Bridge Preservation Along I-495, F-06-023, M-18-042, M-18-043, N-23-026, N-23-027 &N-23-034

(616276-136791) Questions and Responses Addendum No. 3, October 20, 2026

John Rocchio Corporation, email dated October 9, 2026 From Addendum No. 2.

Question 2

Please clarify how the replacement of the existing armored joints at the abutments (Bridge N-23-

034) will be accomplished. Can a detour similar to Bridges M-18-042 and M-18-043 be used for a single weekend Friday thru Monday to perform the deck joints?

Response 2

The replacement of the Joints at N-23-034 will be done with nightly set ups. A similar detour can be used but will need to be approved by district traffic before being used. Work schedule is Sunday to Friday. No weekend work is proposed.

Question 3

Note 1 on sheet 57 and 59 of 65 states that the detour is to be used for reconstruction of bridge deck joints at Pier 2. Is this an error and should state Pier 1 and 4?

Response 3

Yes Note 1 Should Read Pier No. 1 and No. 4 See revised sheets 57 (page A00803-59) and 59 (page A00803-61) of 65.

Question 4

Please clarify if the bridge decks need to be milled before partial deck repairs are performed. Can traffic travel on the exposed concrete deck surface while repairs are performed?

Response 4

Asphalt wearing surfaces should be milled before performing deck repairs. Any milled surface should not be left exposed for longer than 7 calendar days.

Bridge Preservation Along I-495, F-06-023, M-18-042, M-18-043, N-23-026, N-23-027 &N-23-034

Allied Painting, Inc., email dated October 13, 2026

Question 5

If steel repairs are delayed due to Engineer review, additional steel repairs, or circumstances beyond the painting subcontractor's control, will additional surface preparation and primer rework be compensated as extra work?

Response 5

The Contractor shall coordinate the steel repair and painting operations to minimize the need for additional surface preparation and primer restoration. Any areas of concern shall be brought to the attention of the Engineer for review and direction prior to proceeding with painting. Additional compensation, if requested, will be evaluated in accordance with the Contract requirements.

Question 6

Upon completion of the steel repairs, is blasting required before the application of the intermediate coat?

Response 6

The entire repair area must be abraded in accordance with Item 961.2 prior to painting. The specification also requires the steel to be abraded after completion of the structural repairs, including previously cleaned steel surfaces, new repair plates, and additional steel, before the full application of the coating system.

Question 7

If steel repairs cannot be completed during the same construction season as the initial blasting and priming, will MassDOT compensate the Contractor for any required recleaning, primer restoration, or additional mobilization?

Response 7

No, the Contractor is responsible for sequencing the steel repair and painting operations in accordance with Item 961.2.

Bridge Preservation Along I-495, F-06-023, M-18-042, M-18-043, N-23-026, N-23-027 &N-23-034

Allied Painting, Inc., email dated October 13, 2026

Question 8

Will the Contractor be permitted to complete the full three-coat system in areas not requiring steel repairs while leaving only the designated repair areas primed?

Response 8

The Contractor may complete the full three-coat paint system in areas not requiring steel repairs, subject to the Engineer’s approval and following the requirements of the Special Provisions for Items 961.201 through 961.204.

Question 9

How many stripe coats of paint are required?

Response 9

The Contractor shall follow the application requirements under Subsection 961.64.C: Application of the Standard Specifications.

NEL Corporation, email dated October 14, 2026

Question 10

Special provisions for Item 964.60 – Penetrating Epoxy Sealer Treatment on Bridge Decks – states that this item is to be utilized at Br. M-18-043 (4AA) Cherry St. over I-495. The item quantity for

964.60 is shown as 8200 SY on the bid sheets. Could you please confirm that the SY unit is intended, and if so could you provide information related to any additional application locations?

Response 10

The units shall be SY. The quantity has been revised.

See the revised proposal – page B00420 – 10.

Bridge Preservation Along I-495, F-06-023, M-18-042, M-18-043, N-23-026, N-23-027 &N-23-034

Liberty Maintenance, Inc, email dated October 16, 2026

Question 11

Please clarify the allowable lane closure times on I-495 for both single-lane and double-lane closures. Please include any restrictions applicable to shoulder lane closures and clarify whether the allowable closure times differ depending on the number of lanes closed or the specific lane configuration.

Response 11

Refer to the SCHEDULE OF WORK in the special provisions.

CS

Addendum No. 3, October 20, 2026

COMMONWEALTH OF MASSACHUSETTS

CONTRACT DOCUMENTS

AND SPECIAL PROVISIONS

PROPOSAL NO. 616276-136791

P.V. = $9,271,000.00

PLANS NO

FOR

Bridge Preservation Along I-495, F-06-023, M-18-042, M-18-043, N-23-026, N-23-027 &N-23-034 in the Towns of

In accordance with the STANDARD SPECIFICATIONS for HIGHWAYS and BRIDGES dated 2026

This Proposal to be opened and read: TUESDAY, NOVEMBER 3, 2026 at 2:00 P.M.

Massachusetts Department Of Transportation Highway Division Proposal No. 616276-136791

00010 - 1

DOCUMENT 00010

TABLE OF CONTENTS

DOCUMENT 00010

TABLE OF CONTENTS ........................................................................................................... 00010-1 through 2

DOCUMENT 00104

NOTICE TO CONTRACTORS ................................................................................................ 00104- 1 through 4

DOCUMENT 00210

REQUIREMENTS OF MASSACHUSETTS GENERAL

LAWS CHAPTER 30 SECTION 39R; CHAPTER 30, SECTION 39O ................................... 00210-1 through 4

DOCUMENT 00331

LOCUS MAP ............................................................................................................................. 00331-1 through 2

DOCUMENT 00439

CONTRACTOR PROJECT EVALUATION FORM ................................................................ 00439-1 through 2

DOCUMENT 00440

SUBCONTRACTOR PROJECT EVALUATION FORM ........................................................ 00440-1 through 2

DOCUMENT 00710

GENERAL CONTRACT PROVISIONS ................................................................................... 00710-1 through 2

DOCUMENT 00715

SUPPLEMENTAL SPECIFICATIONS .................................................................................. 00715-1 through 22

DOCUMENT 00760

REQUIRED CONTRACT PROVISIONS FOR FEDERAL-AID

CONSTRUCTION CONTRACTS ........................................................................................... 00760-1 through 12

DOCUMENT 00811

MONTHLY PRICE ADJUSTMENT FOR HOT MIX ASPHALT

(HMA) MIXTURES ................................................................................................................... 00811-1 through 2

DOCUMENT 00812

MONTHLY PRICE ADJUSTMENT FOR DIESEL FUEL AND GASOLINE ........................ 00812-1 through 2

DOCUMENT 00813

PRICE ADJUSTMENT FOR STRUCTURAL STEEL

AND REINFORCING STEEL .................................................................................................. 00813-1 through 4

DOCUMENT 00814

PRICE ADJUSTMENT FOR PORTLAND CEMENT CONCRETE MIXES .......................... 00814-1 through 2

DOCUMENT 00820

THE COMMONWEALTH OF MASSACHUSETTS

SUPPLEMENTAL EQUAL EMPLOYMENT OPPORTUNITY,

NON-DISCRIMINATION AND AFFIRMATIVE ACTION PROGRAM ............................... 00820-1 through 6

DOCUMENT 00821

ELECTRONIC REPORTING REQUIREMENTS

CIVIL RIGHTS PROGRAM AND CERTIFIED PAYROLL ................................................... 00821-1 through 2

DOCUMENT 00859

CONTRACTOR/SUBCONTRACTOR CERTIFICATION FORM .......................................... 00859-1 through 2

00104 - 1

DOCUMENT 00104

NOTICE TO CONTRACTORS

Electronic proposals for the following project will be received through the internet using www.bidx.com until the date and time stated below and will be posted on www.bidx.com forthwith after the bid submission deadline. No paper copies of bids will be accepted. All Bidders must have a valid vendor code issued by MassDOT in order to bid on projects. Bidders need to apply for a Digital ID at least 14 days prior to a scheduled bid opening date with www.bidx.com.

TUESDAY, NOVEMBER 3, 2026 at 2:00 P.M. **

Federal Aid Project No. STP(BR-OFF)-004S(017)X

Bridge Preservation Along I-495, F-06-023, M-18-042, M-18-043, N-23-026, N-23-027 & N-23-034

**Date Subject to Change

PROJECT VALUE = $9,271,000.00

Bidders must be pre-qualified by the Department in the BRIDGE - CONSTRUCTION or PAINTING - STRUCTURAL category to bid on the above project. An award will not be made to a Contractor who is not pre-qualified by the Department prior to the opening of Proposals.

All prospective Bidders who intend to bid on this project must obtain “Request Proposal Form (R109)”. The blank “Request Proposal Form (R109)” can be obtained at:

https://www.mass.gov/prequalification-of-horizontal-construction-firms.

All prospective Bidders must complete and e-mail an electronic copy of “Request Proposal Form (R109)” to the MassDOT Director of Prequalification for approval:

prequal.r109@dot.state.ma.us.

Proposal documents for official bidders are posted on www.bidx.com. Other interested parties may receive informational Contract Documents containing the Plans and Special Provisions, free of charge.

Bids will be considered, and the contract awarded in accordance with statutes governing such contracts in accordance with Massachusetts General Laws Chapter 30 § 39M.

The Project Bids File Attachments folder for proposals at www.bidx.com shall be used for submitting at the time of bid required information such as the Bid Bond required document, and other documents that may be requested in the proposal.

http://www.bidx.com/ http://www.bidx.com/ https://www.mass.gov/prequalification-of-horizontal-construction-firms mailto:prequal.r109@dot.state.ma.us

00104 - 3

NOTICE TO CONTRACTORS (Continued)

PRICE ADJUSTMENTS

This Contract contains price adjustments for hot mix asphalt and Portland cement mixtures, diesel fuel, and gasoline. For reference the base prices are as follows: liquid asphalt $712.50 per ton, Portland cement $452.13 per ton, diesel fuel $5.413 per gallon, and gasoline $3.665 per gallon, and Steel Base Price Index 384.0. MassDOT posts the Price Adjustments on their Highway Division’s website at https://www.mass.gov/massdot-contract-price-adjustments

This Contract contains Price Adjustments for steel. See Document 00813 - PRICE ADJUSTMENT FOR STRUCTURAL STEEL AND REINFORCING STEEL for their application and base prices.

MassDOT projects are subject to the rules and regulations of the Architectural Access Board (521 CMR 1.00 et seq.)

Prospective bidders and interested parties can access this information and more via the internet at

WWW.COMMBUYS.COM.

BY: Phillip Eng, Interim MassDOT Secretary Jonathan L. Gulliver, Undersecretary and Highway Administrator

SATURDAY, SEPTEMBER 19, 2026

https://www.mass.gov/massdot-contract-price-adjustments http://www.commbuys.com/

Massachusetts Department of Transportation Highway Division

00715 - 1

DOCUMENT 00715

SUPPLEMENTAL SPECIFICATIONS

SEPTEMBER 30, 2026

The 2026 Standard Specifications for Highways and Bridges are amended by the following modifications, additions and deletions. These Supplemental Specifications prevail over those published in the Standard Specifications.

The Specifications Committee has issued these Supplemental Specifications for inclusion into each proposal until such time as they are updated or incorporated into the next Standard Specifications.

Contractors are cautioned that these Supplemental Specifications are dated and will change as they are updated.

DIVISION I

GENERAL REQUIREMENTS AND COVENANTS

SECTION 5.00: CONTROL OF WORK

Subsection 5.03: Conformity with Plans and Specifications Change the MGL reference in the first sentence to Chapter 30, Section 39I (from Section 39L).

SECTION 7.00: LEGAL RELATIONS AND RESPONSIBILITY TO PUBLIC

Subsection 7.16: Claims of Contractor for Compensation

Such notice by the Contractor and the keeping of costs by the Engineer shall not in any way be construed as providing the validity of the claim. The provisions of this subsection shall not apply to Extra Work ordered by the Engineer in writing.

Replace the third paragraph of 7.16..C Appeal to the Administrative Law Judge (Step 3) with the following:

At any time after the determination by the Claims Committee, the Contractor, at its sole discretion may pursue the matter in the Superior Court Department of the Commonwealth of Massachusetts in the County of Suffolk.

The exclusive jurisdiction and venue for any legal action or proceeding, at Law or in equity, arising out of or relating to the Contract Documents or the Project, shall be the Superior Court Department of the Commonwealth of Massachusetts in the County of Suffolk. The Contractor waives all objections it might have to the jurisdiction or venue of such court and hereby consents to such jurisdiction, regardless of the Contractor’s residence or domicile, for any such action or proceeding. This subsection does not relieve the Contractor’s obligation to submit the dispute to Superior Court within the applicable statutes of limitations or repose and the Department does not hereby waive its rights to assert defenses based upon such statutes.

Proposal No. 616276-136791 Addendum No. 3, October 20, 2026

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DIVISION II

CONSTRUCTION DETAILS

SUBSECTION 119: CONTROL OF RODENTS

Subsection 119.60:A: Initial Treatment Replace the first sentence with the following;

This phase shall start immediately after Notice to Proceed and shall be applied in all buildings to be razed and to all other buildings and areas within the limits of construction where, in the Engineer's judgment, rodents have gathered or may gather during the construction period.

SECTION 200: DRAINAGE

SUBSECTION 227: DRAINAGE SYSTEM SEDIMENT

Subsection 227.30, Method of Measurement Change the subsection number to 227.80

Subsection 227.31, Basis of Payment Change the subsection number to 227.81

Subsection 227.31, Payment Items Change the subsection number to 227.82

SUBSECTION 430: CEMENT CONCRETE BASE COURSE

Subsection 430.40: General Change Applied Crack Sealer to Hot Applied Crack Sealer.

SUBSECTION 476: CEMENT CONCRETE PAVEMENT

Subsection 476.20: Materials Delete Preformed Bituminous Joint Filler for Concrete ‐ M3.05.5 and add the following in M number sequence:

Preformed Expansion Joint Filler M9.14.0

SUBSECTION 477: MILLED RUMBLE STRIPS

Subsection 477: Milled Rumble Strips Replace this subsection with the following:

DESCRIPTION

477.20: General

The work consists of constructing rumble strips on roadways by milling grooves into finished surfaces. Milled Rumble Strips are categorized as Type A, Type B, Type C, or Type D. Type A are rectangular milled grooves at regular intervals in the paved surface, Type B rumble strips are rectangular grooves at regular intervals with designed gaps between intervals to accommodate bicyclists, and Type C and Type D rumble strips form continuous grooves in the paved surface in the form of a vertical sinusoidal wave pattern.

00715 - 3

CONSTRUCTION METHODS

477.61: Equipment

The equipment shall self-align with the slope of the roadway surface and/or any irregularities in the roadway surface.

The Contractor shall demonstrate to the Engineer the ability to achieve the desired groove without tearing or snagging the roadway surface prior to beginning the work.

477.62: Installation of Rumble Strips

Rumble strips shall be installed in accordance with the locations, dimensions, and Type shown on the plans.

Type A and Type B rumble strips shall be installed after the longitudinal pavement markings they supplement (typically edge lines or channelizing lines) are in place. Installation of any diagonal or chevron pavement markings that cross the Type A or Type B rumble strips shall only occur after the rumble strips are in place.

Type C rumble strips shall be installed after the location of the longitudinal pavement markings they supplement (typically center lines) has been laid out, but before the pavement markings are installed. The pavement markings shall only be installed after the Type C rumble strips are in place.

Type D rumble strips shall be installed after the longitudinal pavement markings they supplement (typically center lines) are in place.

477.63: Control of the Work Area

At the end of each working day, all equipment shall be moved to a location where it does not present a hazard to traffic. The pavement shall be cleaned by sweeping and the work area shall be reopened to traffic.

Pavement millings shall become the property of the Contractor and shall be removed and disposed of off-site.

COMPENSATION

477.80: Method of Measurement

Milled Rumble Strip (Type A), Milled Rumble Strip (Type C), and Milled Rumble Strip (Type D) will be measured per foot of installed rumble strip. Milled Rumble Strip (Type B) will be measured per foot of installed rumble strip excluding the designed gaps. Breaks at castings, bridge decks, intersections, or other breaks will not be measured for payment for all types.

477.81: Basis of Payment

Payment for Milled Rumble Strip (Type A), Milled Rumble Strip (Type B), Milled Rumble Strip (Type C), and Milled Rumble Strip (Type D) will be made at the contract unit price per foot of rumble strips, complete in place.

Such payment will be full compensation for furnishing all equipment and labor for satisfactorily performing the work including cleanup and disposal of excess materials.

477.82: Payment Items

Item number Description Unit

477. Milled Rumble Strip (Type A) Foot

477.1 Milled Rumble Strip (Type B) Foot

477.2 Milled Rumble Strip (Type C) Foot

477.3 Milled Rumble Strip (Type D) Foot

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SUBSECTION 482: SAWCUTTING

Subsection 482.80: Method of Measurement Replace this subsection with the following:

Sawcutting, when included in the Contract as its own bid item, will be measured for payment by the foot along the cut line, regardless of depth.

SECTION 600: HIGHWAY GUARD, FENCES AND WALLS

SUBSECTION 628: IMPACT ATTENUATORS

Subsection 628.82: Payment Items Replace this subsection with the following:

Item number Description Unit

628.302 Permanent Impact Attenuator, Non-Redirective, TL-2 Each

628.303 Permanent Impact Attenuator, Non-Redirective, TL-3 Each

628.304 Temporary Impact Attenuator, Non-Redirective, TL-2 Each

628.305 Temporary Impact Attenuator, Non-Redirective, TL-3 Each

628.312 Permanent Impact Attenuator, Redirective, TL-2 Each

628.313 Permanent Impact Attenuator, Redirective, TL-3 Each

628.314 Temporary Impact Attenuator, Redirective, TL-2 Each

628.315 Temporary Impact Attenuator, Redirective, TL-3 Each

628.322 Permanent Impact Attenuator, Low-Maintenance, TL-2 Each

628.323 Permanent Impact Attenuator, Low-Maintenance, TL-3 Each

SECTION 800: TRAFFIC CONTROL DEVICES

SUBSECTION 801: Conduit, Manholes, Handholes, Pull Boxes and Foundations

Subsection 801.61.C: Pre-Cast Concrete Units Replace this subsection with the following;

The construction methods for pre-cast concrete units shall conform to the relevant provisions of M4.09.0 Precast, Prestressed, and Prefabricated Concrete Products

SUBSECTION 813: WIRING, GROUNDING AND SERVICE CONNECTIONS

Subsection 813.20: General Replace this subsection with the following:

This work shall consist of furnishing and installing wire and cable of the type and size indicated for traffic signals and other traffic control devices, ITS systems, highway lighting and related electrical systems, equipment grounding systems, new ground electrodes or connections to existing ground electrodes, power pedestals, and all materials and equipment necessary to deliver power to such systems.

Service points shown on the plans are approximate only. The Contractor shall determine exact locations for both overhead and underground service access points. The Contractor shall determine riser elevations or connections/routing to manhole facilities from the serving utility, and arrange to complete the service connections.

All work under this Subsection shall comply with the MEC and the National Electrical Safety Code.

00715 - 5

Subsection 813.41: Grounding and Bonding Conductors Replace this subsection with the following:

Grounding and bonding conductors shall conform to M8.16.10: Type 10 Grounding and Bonding Conductors (Solid or Stranded, Insulated or Bare).

Subsection 813.42: Ground Rods Replace this subsection with the following:

Ground rods shall consist of driven rod(s) conforming to M8.17.0: Ground Rod or other devices approved for the purpose.

Subsection 813.44: Power Pedestal Add this subsection in numerical order:

A Power Pedestal shall consist of a side-of-post mounted lockable load center enclosure, a load center with circuit breakers, an exterior-mounted electrical meter, signal post and base, equipment bonding, ground rod(s) conforming to 813.42: Ground Rods, and a cement concrete foundation. The enclosure, lock, circuit breakers, signal post and base, and foundation shall all be included in the Shop Drawing submission.

The enclosure shall be rated to meet or exceed NEMA 3R and be suitable for post-mounting and shall be sized appropriately to house the load center. The enclosure shall be capable of being secured with an integrated locking mechanism or by a Contractor-supplied padlock; regardless of locking mechanism, it shall be operated with a #2 key.

The circuit breakers shall be designed for single-phase, 3-wire, 120/240 VAC. Circuit breakers shall provide a means to manually operate a circuit and/or automatically open a circuit that is in overload or short circuit conditions. All circuit breakers shall be UL listed and have CSA certification.

The enclosure shall be furnished with a meter socket installed. The meter socket shall be approved by the servicing electrical utility.

The signal post and base shall conform to M10.05.1: Signal Posts and Bases and the Plans. The Contractor shall supply a square aluminum base with a natural or anodized finish and a Schedule 80 aluminum post with a brushed or spun finish, unless otherwise indicated in the Plans.

The Contractor shall supply mounting equipment recommended by the enclosure manufacturer to side-mount the cabinet to the post.

Bonding for the Power Pedestal shall utilize a #8 AWG or larger ASTM-B3 wire.

The cement concrete foundation shall conform to the Plans and M4.02.0: Concrete Produced by Stationary and Truck Mixers, M4.03.0: Concrete Produced by Volumetric Mixers, M4.06.1: Conventional Concrete, M4.09.0:

Precast, Prestressed, and Prefabricated Concrete Products, M4.11.0: Evaporation Reducing Materials, and M4.12.0: Curing Materials, as applicable.

Subsection 813.64: Power Pedestal Add this subsection in numerical order:

No work shall commence until Shop Drawings have been approved.

The Power Pedestal Cabinet shall be mounted side-of-post to the Signal Post, per the manufacturer's recommendations. The Power Pedestal Cabinet should be installed directly below the meter socket, per the Plans. If dissimilar metals are present, they shall be electrically insulated to prevent galvanic corrosion.

The Contractor shall supply the appropriate type (single pole or double pole) and number of circuit breakers included within the Power Pedestal Cabinet to provide the recommended AC power to each device receiving power from the Cabinet. The circuit breakers shall be clearly labeled as to which device they are powering (e.g.

RRFB-1, RRFB-2, Warning Beacon, Speed Feedback Sign, etc.).

The Power Pedestal shall be grounded and bonded per 813.61: Equipment Grounding and Bonding and 813.62:

Grounding Electrodes.

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Subsection 813.80.E: Power Pedestal Add this subsection in numerical order:

Power Pedestals will be measured by the number of Power Pedestals furnished and installed.

Subsection 813.81.E: Power Pedestal Add this subsection in numerical order:

Power Pedestals will be paid for at the contract unit price per each installed in place. This includes all labor and materials required for a working system.

All costs associated with grounding and bonding of Power Pedestals shall be considered incidental to the item.

All costs associated with providing service connections to Power Pedestals shall be paid for under their respective pay items.

Subsection 813.82: Payment Items Change the unit of measure for items 813.80 and 813.81 to Each and add the following pay item:

813.90 Power Pedestal Each

Subsection 815.82: Payment Items

SUBSECTION 815: TRAFFIC SIGNALS

Subsection 815.20: General Replace the first sentence of the 11th paragraph with the following;

Within 30 days after Notice to Proceed, the Contractor shall submit to the Engineer for approval, a list of equipment they propose to install.

SUBSECTION 819: TRAFFIC SIGNAL DETECTION

Subsection 819: Traffic Signal Detection Add this subsection:

DESCRIPTION

819.20: General

The work under this Subsection consists of furnishing and installing detection devices for vehicles, bicycles, pedestrians, and other road users.

MATERIALS

819.40: General

Materials shall meet the requirements specified in the following Subsections of Division III, Materials:

Material Section

Vehicle Detection Systems M10.08.0

Passive Stop Line Detectors M10.08.1

Passive Advanced Detectors M10.08.2

00715 - 7

Pedestrian Detectors M10.09.0

Pedestrian Pushbutton Assembly M10.09.1

APS Pushbutton Assembly M10.09.2

The Contractor shall furnish Vehicle Detection Systems (VDS) and Pedestrian Detectors that are listed on the

QTCE.

Any software, firmware, cables, or adapters required to program, adjust, fine-tune, or monitor VDS or Pedestrian Detectors shall be provided by the Contractor. VDS and Pedestrian Detectors shall have the latest versions of software and/or firmware installed prior to inspection. Manufacturer updates to software and/or firmware shall be included at no cost for the life of the products.

819.40.A: Vehicle Detection Systems

A VDS shall consist of one or more Internet Protocol (IP) -based detector/sensor assemblies and a cabinet interface device that is installed in a Traffic Signal Controller Cabinet or similar device.

Stop Line VDS shall be capable of providing motor vehicle and bicycle detection at all locations shown on the Plans. The Contractor may furnish a VDS that utilizes a single detector/sensor or multiple, as long as all stop line motor vehicle and bicycle detection zones are encompassed and the traffic signal or other device utilizing the detection can operate per the Plans. All Passive Stop Line Detectors required to provide stop line detection at an intersection shall be included in the cost of a single Stop Line Vehicle Detection System.

If the Contractor furnishes a Stop Line VDS that does not utilize an integrated video monitoring system, a separate video monitoring system per 819.41: Video Monitoring System shall be furnished and installed at no additional cost.

Advanced VDS shall be capable of providing motor vehicle detection on a single approach, at the location shown on the Plans. The Contractor Shall furnish Passive Advanced Detectors that utilize, and are compatible with, the same interface device installed in the Traffic Signal Controller Cabinet, or similar device, as the Stop Line VDS.

All VDSs shall be furnished with manufacturer-supplied mounting hardware.

If multiple VDSs over multiple locations are supplied under a single contract, all components furnished by the Contractor shall be of the same make and model.

819.40.B: Pedestrian Detectors

Pedestrian Pushbutton Assembly and Accessible Pedestrian Signal (APS) Pushbutton Assembly shall both include a pushbutton, sign, housing, manufacturer-specified mounting hardware, and wiring. The Contractor shall review the Contract Documents to determine if one or more in-cabinet control units are required to meet the pedestrian detector type and operational requirements. In-cabinet control units shall be considered incidental to the cost of the item.

The Contractor shall provide a pushbutton housing that conforms to the shape of the pole it is mounted to or shall furnish and install a manufacturer-supplied saddle to provide a flush, secure fit, at no additional cost.

An APS Pushbutton Assembly shall include a pedestrian pushbutton sign that conforms to the Plans. If the sign is not integral to the housing, separate mounting equipment shall be furnished and installed by the Contractor.

All costs associated with the sign and mounting equipment shall be considered incidental to the cost of the item.

819.41: Video Monitoring System

When required by 819.40.A: Vehicle Detection Systems, the Contractor shall furnish and install a Video Monitoring System. The Video Monitoring System shall consist of one or more IP-based 4K, 1080p, H.264 dome-type CCTV cameras; mounting hardware, including but not limited to: brackets, bands, straps, posts, plates, and pole mount adapters; power distribution and conditioning equipment including surge suppression; and all

00715 - 8 necessary cabling and wiring.

All equipment provided for the Video Monitoring System shall be commercial, off-the-shelf products. Custom equipment designed specifically for the Contract will not be accepted. All cabling and wiring shall be recommended by the manufacturer and rated for outdoor use. Any special wiring or connectors required by the manufacturer shall be identified in the Shop Drawings.

The Video Monitoring System shall conform to National Electrical Manufactures Association (NEMA) standards, Underwriters’ Laboratory (UL), and Military Standards (MIL), as applicable. All components of the Video Monitoring System shall be new and still under production by the manufacturer. Obsolete, no longer produced, and/or no longer supported components will not be accepted.

The Video Monitoring System shall be capable of operating in temperatures ranging from -29℉ to +165℉.

The camera shall meet or exceed the requirements found in Table 819.41-1:

Table 819.41‐1: Minimum Camera Requirements

Feature Requirement

Zoom Ratio The minimum zoom ratio shall be 30x Optical and 12x Digital

Camera Type The camera shall be an IP-type CCTV camera.

Auto Focus The camera shall include auto focus with a selection for manual override of auto focus.

Lens Aperture Ratio Typical: F/1.6 to F/4.7 (wide to telephoto)

On-Screen Direction The CCTV camera shall display on-screen azimuth indications.

Privacy Zones The CCTV camera shall be programmable to blank out up to 8, four-sided areas to electronically block portions of the camera’s field of view from being displayed. These privacy zones shall move and adjust sizing synchronously with camera movements and degree of lens zooming.

On-Screen Labels, Text and Titles

The CCTV camera shall display a minimum of 20 programmable characters for on-screen camera ID, preset position, sector, and alarm titles.

On-Screen Labels, Text and Title Positioning

The position of the on-screen text shall be adjustable to appear at selectable positions on the CCTV camera screen image.

Number of Pixels The camera shall provide a minimum of 1280H x 720V effective pixels. The camera shall be capable of being configured to operate at all standard lower resolutions down to 320H x 180V effective pixels.

Image Sensor Size The camera shall include an image sensor of 1/1.8 in., nominal.

Lens Focal Length The camera shall include a zoom lens of 4.3 mm to 129 mm, minimum focal length.

Color and Black & White Image Selection

The camera shall have Color and Black & White video image display modes incorporating both automatic and manual override image mode selection. The camera shall transition automatically to a Black & White mode (when in automatic mode) when the luminance level reaches a user predefined threshold. At all times the camera shall provide a full motion video output at 30 frames per second.

Image Stabilization The CCTV camera shall incorporate electronic image stabilization to reduce the effects of vibration and wind gusts on the displayed video image.

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Feature Requirement

Automatic Iris The camera shall include both automatic iris control and an override for manual iris adjustments.

Wide Dynamic Range The CCTV camera’s wide dynamic range shall be 120 dB.

CCTV Camera Optical Sensitivity

The camera’s sensitivity shall be sufficient to provide a clear, usable color video image display with a scene illumination of ≤ 0.1 lux at an aperture of F1.6, nominal.

Power Input The power input for the CCTV camera and dome shall be PoE+.

Alarms No alarm contacts shall be wired.

The Contractor shall mount the camera at a location that optimizes line-of-sight for all approaches. The view of each approach shall have a clear line of sight, free from obstructions from trees, overhead wires, buildings, and/or other obstructions. If the Contractor is unable to provide a clear line of sight for all approaches to the satisfaction of the Engineer, a second camera, including mounting hardware, cabling, and wiring, shall be furnished and installed on a different traffic signal structure at no additional cost.

The Contractor shall be responsible for the following items prior to installation:

Ensure that all components are assembled and factory-tested prior to delivery to the project site.

Fully configure the camera settings, including but not limited to: camera resolution, camera address, default settings, and pre-set and home positions, per the direction of the Engineer.

Coordinate with the Engineer to set the camera address number to provide unique identification that is compatible with the CCTV camera addressing schema utilized by the Department.

The Contractor shall deliver the camera(s) fully assembled to the project site.

The Contractor shall provide up to 3 hard copy sets of operating manuals, service manuals, and maintenance instructions for all components of the system. At the request of the Engineer, the number of copies may be reduced if the manuals are provided in .pdf file format.

819.42: Material Warranties

All components of Vehicle Detection Systems, including Video Monitoring Systems, and Pedestrian Detectors shall include a minimum two-year manufacturer’s replacement warranty that will commence upon acceptance by the Engineer. The warranty shall cover any manufacturing defects of the products.

Construction Methods

819.60: General

The Contractor shall use discretion in installing the detectors/sensors at locations that optimize the performance of the VDS and to eliminate false calls. The Contractor shall notify the Engineer if the size or location of the detection zones differs from what is shown in the Plans. At the direction of the Engineer, the Contractor will be required to readjust the location of the detection zones and/or modify the detection channels if false calls are observed or the traffic signal system is not operating per the Plans due to the performance of the VDS; this work shall be considered incidental to the cost of the item.

The Contractor shall use manufacturer-specified mounting hardware for all detectors/sensors. If mounted to mast arms or strain poles, any addition weight or wind loading from the detector/sensor shall be accounted for in the structural calculations.

The Contractor shall install the cabinet interface device in the traffic signal controller cabinet. The cabinet interface device shall be connected to the Field Monitoring Unit (FMU) or an ethernet switch in the traffic signal controller cabinet. All communication between devices shall be IP-based. Use of external communications that

00715 - 10 are not routed through the FMU is prohibited.

The Contractor shall furnish and install low voltage power cabling surge protection equipment required for all data and power lines associated with VDS, Video Monitoring Systems, and/or Pedestrian Detection Systems entering the traffic signal controller cabinet.

The Contractor shall install the manufacturer-specified cable between the detectors/sensors to the cabinet interface device in the traffic signal controller cabinet via traffic signal structures, conduit, and/or pullboxes.

This shall include all connectors, sealing tape, and incidental work to complete the connection(s). All equipment installation and wiring shall be installed in a neat and orderly manner and per the manufacturer’s specifications.

The VDS shall be powered through one of the power outlets available on the FMU. The VDS shall be capable of being powered down and remotely restarted through remote control of the power outlet on the FMU.

Under the supervision of the Engineer, the Contractor shall install the VDS software that allows visual confirmation of the detection zones on Department computers.

The Contractor shall install Pedestrian Detectors at the location(s) and mounting height shown on the Plans.

The Contractor shall mount and orient the APS Pushbutton Assembly in a manner so that the vibrotactile arrow is aligned parallel to the crosswalk.

Prior to acceptance, the Contractor shall furnish all passwords for Vehicle Detection Systems and Pedestrian Detectors to the Engineer. The use of default passwords is prohibited.

819.61: Programming APS Pushbuttons

Each APS Pushbutton shall have an audible walk indication during the associated walk interval. The duration of the audible walk indication shall match the duration of the walk interval unless the pedestrian signal is programmed to rest in walk. If programmed to rest in walk, the audible walk indication shall be limited to 7 seconds in length but may be recalled by a subsequent button press during the walk interval.

The APS Pushbutton locator tone and audible walk indication shall be programmed to broadcast at volume 5 dBA louder than ambient sound, except when audible beaconing is provided in response to an extended pushbutton press. The broadcast volume shall be programmed to not exceed 100 dBA at 3 ft. from the emitter, regardless of ambient noise conditions.

The locator tone shall have a duration of 0.15 seconds or less and shall repeat at 1-second intervals.

The locator tone shall be active during all signal intervals, except for the following conditions:

When the audible walk indication is being broadcast.

If the signal is programmed to rest in walk, the locator tone shall resume 7 seconds after the start of the walk interval.

The locator tone shall be disabled if the traffic control signal or pedestrian hybrid beacon is operating in an emergency or fault flashing mode.

The locator tone shall be active during the flashing yellow and alternating flashing red intervals of a pedestrian hybrid beacon phasing sequence.

Upon button press, the locator tone at that pushbutton shall be interrupted and a speech message of “Wait” shall be broadcast.

The normal status of the pilot light shall be dark. The pilot light shall illuminate upon button press and stay illuminated until the start of the walk interval, when it shall return to dark. If the associated pedestrian phase is set to pedestrian recall, the pilot light shall stay illuminated for all intervals except for the walk interval.

The audible walk indication shall an audible tone unless a speech message is called for in the Plans. The audible

00715 - 11 tone shall repeat at 8 to 10 ticks per second, in multiple frequencies, with the dominant component at 880 Hz.

If a speech message is used, the following shall apply:

For exclusive pedestrian phases, during the walk interval the speech message shall be: “walk sign is on for all crossings.” This message shall be broadcast a single instance.

*For concurrent pedestrian phases, during the walk interval the speech message shall be: “[STREET NAME]. Walk sign is on for [STREET NAME].” This message shall be broadcast a single instance.

If the signal is programmed to rest in walk, the concurrent pedestrian speech message shall be repeated upon each subsequent button press.

*Note: See Plans for Street Name information.

The vibrotactile arrow shall vibrate during the walk interval.

The Contractor shall include a fault relay that will default to placing a constant pedestrian call from any pushbutton assembly that fails to communicate back to the in-cabinet control unit.

The Contractor shall connect the in-cabinet control unit to the Field Monitoring Unit (FMU) via an open ethernet port.

819.62: VDS Testing and Evaluation

After the VDS is installed, but prior to acceptance, the Contractor shall conduct an evaluation of the system in the presence of the Engineer. The purpose of the evaluation is to certify the system is operating per the requirements of M10.08.0: Vehicle Detection Systems, M10.08.1: Passive Stop Line Detectors, and M10.08.2:

Passive Advanced Detectors, as applicable. The Contractor shall submit their testing and evaluation plan as a part of the Shop Drawing submittal.

The testing and evaluation shall take place for a minimum of 30 minutes under moderate live traffic conditions.

Testing shall not be conducted during inclement weather.

If the Engineer determines that the system does not meet the operational requirements, the Contractor will be required to adjust the location, orientation, and/or number of detector/sensors. The Contractor may also adjust the location of the detection zones at this time. Upon completion of this work, the system shall be reevaluated in the presence of the Engineer. This process shall be repeated until the operational requirements are met.

All costs associated with testing and evaluation of the VDS, including the repositioning or addition of new materials, shall be considered incidental to the item.

Compensation

819.80: Method of Measurement

Stop Line Vehicle Detection Systems will be measured by each system furnished and installed.

Advanced Vehicle Detection Systems will be measured by each system furnished and installed.

Pedestrian Pushbuttons and APS Pushbuttons will be measured by each pushbutton furnished and installed.

819.81: Basis of Payment

Stop Line Vehicle Detection Systems will be paid for each system installed at an intersection. For the purposes of this work, an intersection shall be defined as all roadway, path, and/or trail approaches controlled by a single traffic signal controller. Where a Video Monitoring System is required per 819.40: General, it shall be included in the cost of Item 819.840.

Advanced Vehicle Detection System will be paid for each system installed on an intersection approach.

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Pedestrian Pushbutton and APS Pushbutton will be paid for each pushbutton assembly installed. The pedestrian sign mounted directly above the pushbutton shall be considered incidental to the item.

The unit cost of each vehicle detection system or pushbutton item shall include all wiring, cabling, mounting hardware, software, firmware, video monitoring system (if required), testing, calibrating, Department Acceptance, training, and all other labor and materials required for the system(s) to operate per the Plans.

819.82: Payment Items

Item number Description Unit

819.840 Stop Line Vehicle Detection System Each

819.845 Advanced Vehicle Detection System Each

819.850 Pedestrian Pushbutton Each

819.855 APS Pushbutton Each

SUBSECTION 820: HIGHWAY LIGHTING

Subsection 820.20: General Replace the first sentence of the 8th paragraph with the following;

Within 30 days after Notice to Proceed, the Contractor shall submit to the Engineer for approval, a list of equipment they propose to install.

Subsection 850.25: Arrow Board Subsection 850.45: Arrow Board Subsection 850.65: Arrow Board Delete these subsections.

Subsection 850.80: Method of Measurement Delete the 7th paragraph beginning with “Arrow Board will be measured …”

Subsection 850.81: Basis of Payment Delete the 7th paragraph beginning with “Arrow Board will be paid for …”

Subsection 850.82: Payment Items

Subsection 856: Connected Work Zone Notification System and Associated Devices Add this new subsection.

DESCRIPTION

856.20: General

The Connected Work Zone Notification System (CWZNS) is a system of field devices that transmit real-time location-based data about work zones. CWZNS field device data is provided in a Work Zone Data Exchange (WZDx) Device Feed in accordance with the United States Department of Transportation (USDOT) WZDx Specification. The Device Feed is consumed by the MassDOT Work Zone Manager (WZM) application.

The Contractor shall be responsible for furnishing, installing, repositioning, operating, maintaining, and

00715 - 13 removing these CWZNS devices.

MATERIALS

856.40: General

Materials shall meet the requirements specified in the following Subsections of Division III, Materials:

Material Section

Connected Work Zone Notification System Devices M10.18.0

Location Marker M10.18.1

Connected Arrow Board M10.18.2

End Location Markers shall conform to M10.18.1: Location Marker and include power and communication status lights and an on/off switch.

856.41: Arrow Board

Arrow Boards shall consist of a matrix of yellow elements that may be illuminated in flashing or sequential patterns, on a non-reflective, black background. The light output from the Arrow Board shall meet the minimum legibility distance, per the MUTCD. The elements shall be capable of at least 50% dimming from full brilliance to avoid nighttime glare. Arrow Boards that are continuously operational in both daylight and nighttime conditions shall automatically adjust the light output based upon ambient light conditions.

The mounting height of the Arrow Board, when in operation, shall be per the Plans.

The minimum dimensions and number of elements for Arrow Boards shall be per Table 856.41-1.

Table 856.41‐1: Arrow Board Dimensions and Elements

Elements

856.060, 856.160 B 60 in. by 30 in. 13

856.096, 856.196 C 96 in. by 48 in. 15

Arrow Boards shall be capable of the following operating modes, per the MUTCD:

Four Corners Flashing Caution Alternating Diamond Caution Flashing Arrow (left or right) Sequential Chevron (left or right) Flashing Double Arrow

Arrow Boards that are categorized as “Connected Arrow Boards” (Items 856.160 and 856.196) shall meet the requirements of M10.18.2: Connected Arrow Board in addition to the requirements of an Arrow Board described in this Subsection.

856.42: Shop Drawings

Within 30 days of the Notice to Proceed, the Contractor shall submit to the Engineer for review and approval cut sheets for each model of CWZNS device to be used. The cut sheets shall document device specifications, including details of how the CWZNS device will communicate. Work that requires the use of CWZNS devices shall not commence until the submission has been approved.

CONSTRUCTION METHODS

856.60: General

At least 15 days prior to deploying CWZNS devices, the Contractor shall visit the site to verify cellular coverage.

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If the devices the Contractor plans to deploy do not have coverage, the Contractor shall swap out the cellular modem, SIM card, or both to a carrier that provides coverage. If no adequate cellular coverage exists from 4G LTE or 5G providers, the Contractor shall immediately notify the Engineer.

The Contractor shall install CWZNS devices at the locations shown on the Plans.

Per the WZDx Specification Device Feed, an End Location Marker shall have a single Marked Location with the “type” property as “work-zone-end”.

The Contractor shall install and power on the End Location Marker coinciding with the deployment of the temporary traffic control setup that calls for its use. The Contractor shall power down and remove the Location Marker at the conclusion of the removal of the temporary traffic control setup. If the location of the work moves during a work shift, the Contractor shall power down the Location Marker, relocate it, and then power it back on.

The operating mode for the Arrow Board or Connected Arrow Board shall be per the Plans. When activated, the minimum element on-time shall be 50% for the flashing mode, with equal intervals of 25% for each sequential phase. The flashing rate shall be not less than 25 or more than 40 flashes per minute.

If a Connected Arrow Board is being used to transmit its location without utilizing other arrow board functions, such as…