Maynard RRFB Spec - Revised.pdf

SPECIAL PROVISIONS

PEDESTRIAN IMPROVEMENT PROJECT

PARKER STREET AT HARRISON STREET

MAYNARD, MASSACHUSETTS

SCOPE OF WORK

The work under this Contract consists of pedestrian improvements at the intersection of

Parker Street at Harrison Street in Maynard, Massachusetts. All work proposed is within

Maynard Town Layout.

The work includes installation of Rectangular Rapid Flashing Beacons (RRFBs), unclassified excavation, cement concrete sidewalks, tree trimming, installation of traffic signs, and other incidental work.

All work done under this Contract shall be in conformance with the Massachusetts

Highway Department Standard Specifications for Highways and Bridges dated 1988, the Supplemental Specifications dated July 1, 2015, the Interim Supplemental

Specifications dated September 30, 2017, the 2017 Construction Standard Details, the

1996 Construction and Traffic Standard Details (as relates to traffic standard details only), the current version of the Manual on Uniform Traffic Control Devices for Streets and Highways with Massachusetts Amendments, the 1990 Standard Drawings for

Signs and Supports, the 1968 Standard Drawings for Traffic Signals and Highway

Lighting, and the latest edition of the American Standard for Nursery Stock will govern.

The General Conditions, Supplementary Conditions and Special Provisions shall take precedence over the General Requirements of Division I of the Standard Specifications.

WORK SCHEDULE

Provided that prior approval by the engineer has been obtained and police presence is at the site while the work is being performed, work on this project is not restricted to a normal eight-hour day, five-day week.

No work shall be done on this Contract on Saturdays, Sundays or holidays or on the day before or the day after a long weekend which involves a holiday without prior approval by the Engineer.

Actual work hours shall be confirmed with Town Engineering and DPW prior to start of construction.

COOPERATION OF THE CONTRACTOR

(Supplementing Subsections 5.05 and 5.06)

Agents of various public service agencies, municipal and State Departments, and private site contractors may be entering on the work site to remove existing utilities, to construct or place new facilities or to make alterations to existing facilities.

The Contractor shall perform the work in cooperation with the various agencies in a manner which causes the least interference with the operations of the aforementioned agencies and shall have no claim for delay which may be due, or result, from said work of these agents.

The Contractor shall perform all coordination necessary to facilitate relocation of any utilities by any affected agencies.

PUBLIC SAFETY AND CONVENIENCE

(Supplementing Subsection 7.09)

The Contractor shall provide necessary access for fire apparatus and other emergency vehicles through the work zones to abutting properties at all times.

Sweeping and cleaning of surfaces beyond the limits of the project required to clean up material caused by spillage or vehicular tracking during the various phases of the work shall be considered as incidental to the work being performed under the Contract and there will be no additional compensation.

NOTICE TO OWNERS OF UTILITIES

(Supplementing Subsection 7.13)

Written notice shall be given by the Contractor to all public service corporations or municipal and State officials owning or having charge of publicly or privately owned utilities at least one week in advance of the commencement of operations that will affect the utilities. The Contractor shall, at the same time, file a copy of such notice with the Engineer.

The Contractor's attention is further directed to the requirements of Work in the Immediate

Vicinity of Certain Underground Structures and Poles herein included in these Special

Provisions.

UTILITY CONTACTS:

The contractor shall contact owners and representatives of the principal utilities affected prior to the start of work to discuss coordination necessary or any conflicts that are anticipated.

TOWN OF MAYNARD

Maynard Fire Department Chief Anthony Stowers

1 Summer Street Phone:(978) 897-1014

Maynard, MA 01754

Maynard Police Department Chief Mark Dubois

197 Main Street Phone:(978) 897-1011

Maynard, MA 01754

Maynard Department of Public Works Aaron Miklusko

195 Main Street. Director

Maynard, MA 01754 Phone:(978) 897-1308

WATER & SEWER

Maynard Department of Public Works Aaron Miklusko

195 Main Street. Director

Maynard, MA 01754 Phone:(978) 897-1308

ELECTRIC

NStar Electric and Gas Company Steven Owens

1 NSTAR Way Phone:(508) 441-5881

Westwood, MA 02090 Steven.Owens@nu.com

Lighttower Mark Bonanno

80 Central Street Phone: (506) 616-7818

Boxborough, MA 01719 mbonanno@lighttower.com

TELEPHONE

Verizon Karen Mealey

385 Myles Standish Blvd. Phone: (774) 409-3160

Taunton, MA 02780 karen.m.mealey@verizon.com mailto:mbonanno@lighttower.com

GAS

Eversource Gas Steven Owens

247 Station Drive, NWBED 180 Phone: (508) 441-5881

Westwood, MA 02451 Steven.owens@eversource.com

Tennessee Gas Pipeline Company David Wood

8 Anngina Drive Phone: (860) 763-6005

Ennfield, CT 06082 Wood@kindermorgan.com

CABLE

Comcast Wendy Brown

676 Island pond Road Phone: (603) 541-1082

Manchester, NH 03109 Wendy.brown@comcast.com

Lighttower Mark Bonanno

80 Central Street Phone: (506) 616-7818

Boxborough, MA 01719 mbonanno@lighttower.com

MCI-Verizon Business Stephen Parretti

P.O. Box 600 Phone: (508) 248-1305

Charlton, MA 01507 Stephen.parretti@verizon.com

OTHER AFFECTED PARTIES:

Vanasse Hangen Brustlin, Inc. Wayne P. Amico, P.E.

101 Walnut Street Senior Project Manager

Watertown, MA 02471-9151 Phone: (617) 924-1770

The Contractor shall make his own investigation to assure that no damage to existing structures, drainage lines, traffic signal conduits, and other utilities will occur as a result of construction operations.

The Contractor shall notify "Mass. DIG SAFE" and procure a DIG SAFE number of each location prior to disturbing ground in any way.

"DIG-SAFE" Call Center: Telephone 1-888-344-7233 mailto:mbonanno@lighttower.com

PROTECTION OF UTILITIES AND PROPERTY

(Supplementing Subsection 7.13)

The Contractor, in constructing or installing facilities alongside or near sewers, drains, water or gas pipes, electric or telephone conduits, poles, sidewalks, walls, vaults or other structures shall sustain them securely in place. The Contractor shall coordinate with the officers and agents of the various utility companies and municipal departments to assure that the services of these structures are maintained. The Contractor shall also be responsible for the repair or replacement, at no additional cost to the Town, of any damage to such structures caused by construction operations. The Contractor is responsible to leave them in the same condition as they existed prior to commencement of the work. In case of damage to utilities, the Contractor shall promptly notify the utility owner and shall, if requested by the

Engineer, furnish labor and equipment to work temporarily under the utility owner's direction. Pipes or other structures damaged by the operation of the Contractor may be repaired by the Towns or by the utility owner which suffers the loss. The cost of such repairs shall be borne by the Contractor, without compensation therefor.

If during construction there is an existing utility and/ or structure found to be in conflict with the proposed work under this Contract, the Contractor shall protect and maintain the services to the utilities and structures. The Engineer will, as soon as possible identify the utilities to be relocated or other such activities deemed suitable for resolution.

If live service connections are to be interrupted by excavations of any kind, the Contractor shall not break the service until new services are provided. Abandoned services shall be plugged off or otherwise made secure.

Full compensation for furnishing all labor, materials, tools, equipment and incidentals for doing all the work involved in protecting or repairing property as specified in this Section, shall be considered included in the lump sum price bid and no additional compensation will be allowed therefor.

TEMPORARY ACCESS TO AREA MERCHANTS AND BUSINESSES

(Supplementing Subsections 8.02 and 8.06)

Access to all properties must be maintained at all times. The Contractor shall provide safe and ready means of ingress and egress to all businesses or residences in the project area, both day and night, for the duration of the project.

PRESERVATION OF ROADSIDE GROWTH

(Supplementing Subsection 8.08)

The Contractor shall take all necessary care when excavating or working in the vicinity of existing trees so that the root systems, trunks, and branches are not damaged. All precautions shall be taken to insure that heavy equipment does not damage any roots, including those that lie below the limits of excavation.

Do not store equipment or stockpile materials within drip line of trees or in areas enclosed by tree protection fencing.

Avoid any direct soil contamination in root zone area by petroleum, petroleum products or solvents, salts or any other pollutant during construction.

All cutting or trimming of trees to be performed by the Town of Maynard. The Contractor shall coordinate trimming through the Director of Public Works.

SAFETY CONTROLS FOR CONSTRUCTION OPERATIONS

(Supplementing Subsection 850.21)

Safety controls for construction operations shall be done in accordance with the relevant provisions of Section 850 of the Standard Specifications, the Manual on Uniform Traffic

Control Devices and the Traffic Management Plan and the following:

MATERIAL REMOVED AND STACKED

The Contractor shall carefully remove, transport and stack all material that, in the opinion of the Engineer, is salvageable. The Contractor shall coordinate with the Town of Maynard

Department of Public Works to schedule drop-off time and location.

DISPOSAL OF SURPLUS MATERIALS

Surplus materials obtained from any type of excavation, and not needed for further use as determined by the Engineer shall become the property of the Contractor and shall be removed from the site during the construction period and legally disposed of. The removal and disposal of surplus material shall adhere to the regulations and requirements of local authorities governing the disposal of such materials, at no additional compensation.

SAWCUTS

Sawcut the existing sidewalk at a joint to install the proposed sidewalk panel where the RRFB system is to be installed.

PROPERTY BOUNDS

The Contractor shall exercise due care when working around all property bounds which are to remain. Should any damage to a bound result from the actions of the Contractor, the bound shall be replaced and/or realigned by the Contractor as directed by the Engineer at no cost to the Town.

RESTRICTED MATERIALS

All new construction materials shall be asbestos-free including any roofing felt, adhesives, waterproofing materials, grout, or sealer that may be used in project construction.

ITEM 120.1 UNCLASSIFIED EXCAVATION

The work under this item shall conform to the relevant provisions of Section 120 of the

Standard Specifications and the following:

The work includes the excavation of material of every description regardless of the type encountered, from within the project limits as shown on the drawings and as directed by the

Engineer.

The work includes the disposal of existing materials shown on the drawings to be removed and reset, but which in the judgment of the Engineer are unsuitable for reuse in the proposed work and their disposal is not paid for under a separate item.

No separate payment will be made for the off-site disposal of all existing material unsuitable for reuse in the proposed work, but all costs in connection therewith shall be included in the

Contract lump sum price bid.

ITEM 482.4 SAWING CEMENT CONCRETE

The work under this item shall conform to the relevant provisions of Section 120 of the

The work shall include the sawcutting of existing cement concrete pavements where shown on the plans, and as directed by the Engineer.

Sawcut equipment shall be approved by the Engineer prior to commencing work.

The existing pavement shall be sawcut through its full depth, or to the elevation of the abutting proposed pavement subgrade, whichever is lesser, at all joints between existing and proposed pavements, to provide a uniform, vertical surface for the proposed pavement joint with the existing pavement.

Sawcut edges which become broken, ragged or undermined as a result of the Contractor's operations shall be re-sawcut prior to the placement of abutting proposed pavement at no additional cost to the Town.

ITEM 824.401 RECTANGULAR RAPID FLASHING BEACON SYSTEM

LOCATION NO. 1

Work under this Item shall conform to the relevant provisions of Section 800 of the Standard

Specifications, the 2009 Manual on Uniform Traffic Control Devices (MUTCD), and the following:

The work shall include the furnishing and installation of part or all of the following items:

P5-posts; solar powered rectangular rapid flashing beacons (RRFB); pedestrian push buttons;

solar panels; all cable and wiring; ground rods, equipment grounding and bonding; and all other equipment, materials and incidental costs necessary to provide complete, fully operational rectangular rapid flashing beacon system as specific herein and as shown on the plans. The location is:

• Location 1 – Parker Street (Route 27) at Harrison Street

A list of major items required for the RRFB systems are included on the plans.

Shop Drawings

Within 30 days following execution of the Contract, the Contractor shall submit shop drawings for beacon supports, a list of equipment, and manufacturer's equipment specifications to the Engineer in accordance with the relevant provisions of Section 815.20.

No work shall be commenced by the Contractor until approval of the shop drawings and manufacturer's data has been received in writing from the Engineer. Approval of these drawings will be general in character and shall not relieve the Contractor from the responsibility of, or the necessity of, furnishing materials and workmanship conforming to the plans and specifications.

The Contractor shall deliver to the Engineer a certificate of compliance with the manufacturer for all materials purchased from the manufacturer.

Equipment Bonding

Special purpose bonding wire shall be No. 8 AWG or larger conforming to the requirements of ASTM B-3.

ITEM 824.401(Cont.)

Rectangular Rapid Flashing Beacon (RRFB)

General Requirements:

• The RRFBs shall consist of two-sided units with rapidly and alternately flashing rectangular yellow indications having LED-array based pulsing light sources, and shall be designed, located, and operated with the detailed requirements specified herein and on the plans. The RRFBs shall have two LED-array indications visible to approaching vehicles and shall have one LED-array indication visible to pedestrians in crosswalks to give confirmation that the RRFB is in operation. The RRFB units shall be manufactured by Carmanah (Model: R920), or approved equivalent. The units shall be painted black.

Each RRFB shall be located between the bottom of the W11-2 sign and the top of the supplemental downward diagonal arrow sign (W16-7p).

Beacon Flashing Requirements:

• When activated, the RRFB indications shall flash in a rapidly alternating “wig-wag” flashing sequence (left light on, then right light on).

• As a specific exception to the 2009 MUTCD Section 4L.01 requirements for the flash rate of beacons, RRFBs shall have a much faster flash rate. Each of the yellow indications of an RRFB shall have 70 to 80 periods of flashing per minute and shall have alternating but approximately equal periods of rapid pulsing light emissions and dark operation. During each of its 70 to 80 flashing periods per minute, the yellow indication on the left side of the RRFB shall emit two slow pulses of light after which the yellow indications on the right shall emit four rapid pulses of light followed by a long pulse.

• The flash rate of each individual yellow indication, as applied over the full on-off sequence of a flashing period of the indication, shall not be between 5 and 30 flashes per second, to avoid frequencies that might cause seizures.

• The light intensity of the yellow indications shall meet the minimum specifications of

Society of Automotive Engineers (SAE) standard J595 (Directional Flashing Optical

Warning Devices for Authorized Emergency, Maintenance, and Service Vehicles) dated January 2005.

Beacon Operation:

• The RRFBs, normally dark, shall initiate operation via pedestrian push button actuation, and shall cease operation at a predetermined time limit. This time limit shall be initially set as noted on the plans. The following example is provided to clarify this operation:

If the predetermined flash period is set for 20 seconds and a new actuation is received when the RRFBs have already been flashing for 12 seconds, a new 20-second period will immediately commence, thus resulting in a continuous flashing duration of 32 seconds. If the predetermined flash period is set for 20 seconds and a new actuation is received 1 second after the RRFBs have ceased flashing, a new 20-second period will immediately commence, thus resulting in a flashing duration of 41 seconds with a 1-second interruption.

• All RRFBs associated with a given crosswalk shall, when activated, simultaneously commence operation of their alternating rapid flashing indications and shall cease operation simultaneously via a wireless communication system.

Beacon Power Source:

• Power for the RRFB shall be solar, no AC power required.

• Top-of-post mounted solar panel. Solar package shall be sized by manufacturer using location and load based calculation software.

• Batteries per manufacturer’s recommendations.

• Communication between units shall be wireless.

Warranty:

• Three year system warranty.

Pedestrian Push Buttons

Pedestrian push button controls shall be raised from or flush with their housings and shall be a minimum of 2 inches in the smallest dimension. The force required to activate the controls shall be no greater than 5 pounds. The pedestrian push buttons shall be per Town standard, manufactured by Campbell Company (Model: 200), or approved equivalent. The pedestrian push button housing shall be painted yellow.

Pedestrian push buttons shall be located as close as practicable to the sidewalk curb ramp serving the controlled crossing and shall permit operation from a clear ground space.

A maximum mounting height of 42 inches above the finish sidewalk grade shall be used for pedestrian push buttons.

Supports

Supports for the RRFBs and signs shall be 2 inch square tube (P-5) breakaway post, with die-cut knockouts. The posts shall be 12 gauge, hot-carbon steel conforming to the requirements of ASTM A1011, Grade 50. Galvanizing shall be in accordance with ASTM A653, Coating

Designation G140 with a minimum coating of 1.4 ounces per square feet total of zinc on both sides under triple spot tests.

Posts shall be welded directly in the corner by high frequency resistance welding or equal and externally scarfed to agree with standard corner radius 5/32” +/- 1/64”. The corner weld and holes shall be zinc coated after scarfing operations.

The die-cut-punch knockouts shall be 7/16 inch diameter, 1 inch on center. The knockouts shall be on all four sides of the posts.

The anchor assembly shall a 2 inch square by 3 foot long, 12 gauge, hot dipped galvanized.

The anchor assembly shall extend no more that 3 inches above existing grade unless otherwise directed by the Town. A minimum of 30 inches of the P-5 post shall be inserted into anchor assembly.

The posts shall be straight and shall have a smooth uniform finish. It shall be possible to telescope consecutive sizes of posts freely with minimum amount of play.

All bolts shall conform to ASTM-a307, Class A.

Posts shall not obstruct a sidewalk or crosswalk.

System Documentation

The Contractor shall submit to the Engineer two (2) copies of the operating and maintenance instructions for all equipment complete in wiring diagram of the internal, external and field connections of all equipment the Contractor has installed on the project.

Manuals

The Contractor shall supply two (2) copies of operating and maintenance manuals to the

Town.

Maintenance of Rectangular Rapid Flashing Beacon

It shall be the responsibility of the Contractor to provide all labor, equipment and material required for the total maintenance and repair of the proposed Rectangular Rapid Flashing

Beacon system equipment, including damage by automobile accidents until final completion and acceptance of the project, unless otherwise specified under Subsection 7.17 “Traffic

Accommodation: of the Standard Specifications as amended, in which case Subsection 7.17 will govern.

These provisions will apply to the Rectangular Rapid Flashing Beacon location included as part of this construction Contract from the date of written notice given to the Engineer that the Contractor will work on or adjacent to the proposed Rectangular Rapid Flashing Beacon system until the date when the Town accepts the complete project. This written notice must be given before the Contractor may proceed with any work on specified beacon locations.

For the purpose of these Special Provisions, the phrase “Rectangular Rapid Flashing Beacon

Equipment” is intended to include, but is not limited to, supporting structures, cabinet accessories and panels, wires, and all other ancillary electrical equipment used for traffic control.

Fine Tuning, Adjustment, and Testing Period

After the Contractor has finished installing the Rectangular Rapid Flashing Beacons and has set the beacon system to operate as specified in the Contract documents, the fine tuning, adjusting and testing period shall begin.

The Contractor shall advise the Engineer, in writing, of the date of the beginning of the fine-tuning and testing period. This period shall not start until the work at the locations are complete. During this period, the Contractor, under the direction of the

Engineer, shall make necessary adjustments and tests to insure safe and efficient operation of the equipment. This period shall not last for more than 30 days and the Contract completion date has taken this testing period into consideration. No request for final acceptance will be considered until successful completion of the testing period.

The Contractor shall notify the Engineer in writing of the starting date of the fine tuning period prior to the starting date.

Final Inspection and Acceptance

Upon successful completion of the 30 day testing period wherein the Rectangular Rapid

Flashing Beacon installations has operated for 30 days without failure, the Contractor shall notify the Town. The Engineer will make a final inspection of the installations in the presence of the Engineer/ Town, Owner, and the Contractor. An inspection check will be made to ensure that all equipment, materials, installations and operations are in accordance with the construction contract, plans and specifications.

Items to be checked will include, but not be limited to, beacon system operation, documents (wiring diagrams, as-built plans, instruction manuals, parts list, warranties, grounding test report, etc.), signs, pavement markings, and street hardware (posts, bases, housings, brackets, etc.).

The Engineer will notify the Contractor in writing of any items in which the inspection reveals that the work is incomplete, defective, or does not otherwise meet the project specifications.

The Contractor shall perform the corrective actions necessary to achieve final acceptance by the Town. These corrective actions shall be done by and at the expense of the Contractor and within 15 days of the date of the inspection report, unless otherwise approved in writing by the Town.

Guarantee After Final Acceptance

The Contractor shall diagnose (troubleshoot) the system and replace any part of the rectangular rapid flashing beacon equipment found to be defective in workmanship, material or manner of functioning within six months from date of final acceptance of all the installations under this Contract. This requirement does not affect the one-year warranty period on equipment specified in Subsection 815.20 of the Standard Specifications.

Upon the date of acceptance of the project by the Town, the Contractor shall turn over all guarantees and warranties to the Town.

Qualified Electricians

Within 10 days after opening of bids, the low bidder shall submit a list of the Journeyman

Electricians (Massachusetts License) who will perform the electrical work in this contract.

Also, the low bidder shall submit copies of each Journeyman Electrician's and Master

Electrician’s current Massachusetts Licenses.

ITEM 874.4 TRAFFIC SIGN REMOVED AND STACKED

The work under this item shall conform to the relevant provisions of Section 828 of the

The work shall include the careful removal, transporting and stacking of signs, attached hardware and supports from locations shown on the plans and as directed by the Engineer.

The Contractor shall accept responsibility for the removal, handling and stacking at a location convenient for removal by the Town. Any signs and posts damaged or lost either directly or indirectly as a result of the Contractor's operations shall be replaced by the

Contractor at no additional cost to the Town. The Contractor shall coordinate the removal of signs and posts with the Town by notifying the Town prior to and at the completion of the above work. Existing signs shall remain in place until proposed new signs are in place.

ITEM 999.1 POLICE SERVICES ALLOWANCE

The Contractor shall furnish police services required to direct traffic on existing roadways where traffic is maintained.

The Contractor shall provide such police officers as may be deemed necessary by either the

Engineer or the Town for the direction and control of all traffic traveling within and through the project area. The police officers shall be obtained from the Town Police Department as applicable. The police officers shall be paid by the Contractor at the prevailing rate of wages established by the Town.

Allowance for Police Services

An allowance of Two Thousand Dollars ($2,000) for the furnishing of police services has been included in all bids. This allowance is determined by multiplying the number of hours estimated as necessary by the prevailing hourly rate of wages established for such services.

The Contractor shall submit certified copies of itemized bills of services rendered for review and approval by the Engineer. The allowance will be adjusted to the actual amount paid for authorized and approved police services as stipulated and shall include other payments due to any legal requirements of the State and Federal governments.

Payment

The quantity to be paid for under this item shall be the actual amount paid by the

Contractor to provide satisfactory police services as stipulated and required. Any overhead costs shall be considered to be included in the contract lump sum price bid.