Sidewalks and Masonry 2024.pdf

Town of Southbridge Sidewalks and Masonry 2024

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TOWN OF SOUTHBRIDGE

Department of Public Works

Sidewalks & Masonry Bid 2024

Location: Town of Southbridge Department of Public Works 185 Guelphwood Road Southbridge, MA 01550

Contact: Hannah Prescott, Operations Officer

Description: The Town of Southbridge is seeking quantity bids for sidewalk and masonry improvements.

Bid Submission:

Bids are to be addressed to the Department of Public Works, 185 Guelphwood Road, Southbridge, MA 01550.

The deadline for sealed bids is 5/16/24 at 10:00AM. The sealed bid shall be clearly marked “Sidewalk and

Masonry Quantities”. Late bids will not be opened.

Compliance Requirements:

a. The Contractor will pay prevailing wage rates on this job per the approved schedule (ATTACHMENT B) which is part of this bid package and will submit certified payrolls and any other required forms to fulfill any/all Town and State requirements.

b. 10 hour OSHA cards are required to be with all contractor employees working on the site. Copies of the 10 hour OSHA cards are required to be submitted to the Town’s project manager at the pre-start meeting and with the certified payroll for all contractor employees that work on the job site.

c. The deadline for sealed bids is 5/16/2024 at 10:00AM. The sealed bid shall be clearly marked “Road Improvement Pavement Quantities”. Bids are to be addressed to Department of Public Works, 185 Guelphwood Road, Southbridge, MA 01550. Late bids will not be opened.

d. Written Bids must be submitted on the Bid Sheet provided (ATTACHMENT A). Any suggested changes or additions shall be detailed, and costs provided separated from the scop cost above.

e. Bidder shall provide General Insurance Certificate shall be provided with the Town of Southbridge listed as additional insurance.

f. The Town of Southbridge reserves the right to accept or reject any or all bids, to waive any informality contained therein, and to award the contract as decided to be in the best interest of the Town. The Town of Southbridge fully complies with federal, state, and local laws and directives governing equal opportunity, affirmative action and non-discrimination in all county activities and actively solicits bids/proposals from MBE/WBE business.

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SPECIAL PROVISIONS

TOWN OF SOUTHBRIDGE

DEPARTMENT OF PUBLIC WORKS

Sidewalks and Masonry Quantities Bid 2024

All work done under these contract quantities shall be in conformance with the MassDOT Highway

Division 2024 Standard Specifications for Highways and Bridges, the Supplemental Specifications dated March 31, 2021, and the most recent Interim Supplemental Specifications if any; the 2017

Construction Standard Details; the Standard Traffic Management Plans and Details; the 2024 11th

Edition Manual on Uniform Traffic Control Devices; the latest edition of American Standard for

Nursery Stock; the Drawings and these Special Provisions.

Where a conflict occurs between these Special Provisions and any of the other documents stated above, the Special Provisions shall supersede.

All referenced Massachusetts Department of Transportation (MassDOT) documents can be found online at: https://www.mass.gov/massdot-highway-division-manuals-and-publications

BID ITEM QUANTITIES

Bid item quantities will be used primarily for the purpose of comparing bids. When a project is ordered under this contract, the Contractor will provide an estimate which will include the quantities of each bid item ordered, the cost per bid item, and the total project cost. The project may not proceed until this estimate is approved by the Engineer. The estimated project cost shall not be exceeded unless field changes which require an increase in bid item quantities are authorized by the

Engineer, or unless a Change Order is approved for work that cannot be classified under the bid items.

DEFINITIONS

The terms Owner and Town shall be synonymous and refer to the municipal corporation known as the

Town of Southbridge.

The term Engineer shall mean the Director of Public Works or his/her duly authorized Agent.

https://www.mass.gov/massdot-highway-division-manuals-and-publications

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RESPONSIBILITY FOR DAMAGE CLAIMS

The Contractor shall indemnify, defend and save harmless the Municipality and all of its or their offices, agents and employees against all suits, claims or liability of every name and nature, for or on account of any injuries to persons or damage to property arising out of or inconsequence of the acts of the Contractor in the performance of the work covered by the Contract or failure to comply with the terms and conditions of said Contract, whether by himself or his employees or Subcontractors, but only in respect of such injuries or damages sustained during the performance and prior to the completion and acceptance of the work covered by the contract.

The Contractor will be held responsible for any and all claims for damage to underground structures such as, but not restricted to, water or gas mains, pipes, conduits, manholes or catch basins, due to his operation or to the operations of any of his Subcontractors.

COOPERATION BY CONTRACTOR

Attention is directed to the provisions relating to rights of public corporations and municipal departments to enter the site of the improvement and alter, replace, and/or install facilities at such times when the Contractor will be prosecuting other required work contiguous thereto.

INSPECTION OF WORK

The Contractor is advised that the Engineer will be provided with a schedule of operations and will at various times during the construction of the project be on-site to inspect procedures and give directions. For the purpose of observing work that affects their respective properties, inspectors for public agencies and utility companies shall be permitted access to the work, but all official orders and directives to the Contractor will be issued by the DPW Director or his/her duly authorized agent.

NOTICE TO OWNERS OF UTILITIES AND PUBLIC SERVICE DEPARTMENTS:

Written notice shall be given by the Contractor to all public service corporations or officials owning or having charge of Public or Private Utilities and Departments of his intentions to commence operations affecting such utilities and Departments at least one (1) week in advance of the start of such operations and the Contractor shall at the same time file a copy of said notice with the Engineer.

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The names of the principal Town Departments and Utilities which may be affected will be provided to the Contractor at the pre-construction meeting.

The Contractor shall notify “Massachusetts DIG SAFE” and procure a DIG SAFE number 72 hours prior to disturbing existing ground in any way. DIG SAFE Call Center: 1-888-344-7233.

Before the Contractor begins any work on operations which might result in damage to utility pipes or structures the Contractor shall verify the locations of existing overhead and subsurface utilities in the vicinity of the work with the listed Departments and Utility Companies and conduct his operations so as to avoid any damage to them.

PROTECTION OF EXISTING UTILITIES AND STRUCTURES

Excavation and backfill operations shall be carried out in a manner that will prevent cave in of excavations or the undermining, damage or disturbing of existing utilities and structures or of new work.

Any excavations improperly backfilled, or where settlement occurs, shall be reopened to the depth required, then refilled with new materials and compacted, and the surface restored to the required grade and condition at no additional expense to the Owner.

Any damage due to excavation, backfilling or settlement of the backfill, or injury to persons or damage to property occurring as a result of such damage, shall be the responsibility of the

Contractor. All costs to repair such damage, in a manner satisfactory to the Owner, shall be borne by the Contractor at no additional expense to the Owner.

Where existing subsurface utilities or other facilities adjacent to or crossing through the excavation require temporary support or protection, such temporary support or protection shall be satisfactorily provided by the Contractor at no additional expense to the Owner. All necessary measures shall be taken by the Contractor to prevent lateral movement or settlement of existing facilities or of work in progress.

If the plans indicate the approximate location of existing overhead and subsurface utilities in the vicinity of the work, the Contractor is advised to verify this information, as its accuracy and completeness are not guaranteed by the Owner.

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PROTECTION OF UTILITIES AND PROPERTIES

Whatever measures are necessary to protect overhead and subsurface utilities during the work shall be included in the contract unit price for the various items involved.

In case of damage to utilities, the Contractor shall promptly notify the Owner and shall, if requested, furnish manpower under the Owner's direction in getting access to the utility. Pipes or other structures damaged by the operation of the Contractor may be repaired by the Owner, the municipality, or the utility company. The cost of such repairs shall be borne by the Contractor without compensation therefore.

PROVISIONS FOR TRAVEL AND PROSECUTION OF THE WORK

Access shall be maintained for all abutters so that they may use the driveways and approaches adjacent to their properties. Pedestrian access to abutting property and access for emergency vehicles shall be provided at all times.

Alternate one-way traffic may be maintained during working hours, however the Contractor will be required to provide two unobstructed lanes for two-way traffic during non-working hours.

All construction equipment, material and debris shall be removed from the traveled way at the end of each working day and shall be stored in such manner as not to interfere with the flow of driveway traffic or pedestrians.

The Contractor shall coordinate his work with the work to be done by other Contractors on the site, public utilities or other agencies, and he shall so schedule his operations as to cause the least interruption to the normal flow of all traffic types. Reasonable facilities shall be provided by the

Contractor for the safe and convenient passage of pedestrians and vehicles through and within the project area.

Particular care shall be taken to establish and maintain methods and procedures which will not create unnecessary or unusual hazards to public safety. The placement of necessary devices will be for daily work periods and shall be removed after the completion of work operations. Signs having messages that are irrelevant to normal traffic conditions shall be removed or properly covered at the end of each work period. Signs are to be kept clean at all times and legends shall be distinctive and unmarred.

TRAFFIC MANAGEMENT PLAN

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When required the contractor shall prepare and submit a traffic management plan to the Engineer for review and approval by the Engineer and the Southbridge Police Department. The Traffic

Management Plan shall be prepared for all projects ordered under this contract, unless specifically directed otherwise by the Engineer. The Traffic Management Plan shall contain information on proposed detour routes if requested, location and type of detour and warning signs, barricades and other safety and traffic control means and devices to ensure a safe, orderly flow of vehicular and pedestrian traffic.

All temporary and permanent signs, traffic control devices, and pavement markings shall conform to the latest relevant sections of the Manual on Uniform Traffic Control Devices (MUTCD), and the

Massachusetts Standard Specifications for Highways and Bridges.

The Traffic Management plan shall be submitted for review at least seven (7) days prior to any work being performed on the project roadways. No work would be allowed until the Traffic Management

Plan is approved by the Town and implemented by the Contractor.

Temporary pavement markings and other traffic control devices shall be provided in accordance with the Contractor’s Traffic Management Plan and as directed by the Engineer.

The cost of preparing the traffic management plan and providing and maintaining temporary traffic control devices shall be borne by the Contractor.

TRAFFIC POLICE DETAILS

If, in the opinion of the Chief of Police, uniformed police officers are required for the protection of persons and control of traffic, the Contractor shall be responsible for making all arrangements with the Southbridge Police Department as may be required. The Owner will pay for all uniformed police officers in the amount invoiced by the Police Department to the Department of Public Works.

The Contractor shall be responsible for ordering and cancelling any police detail. Cancellations shall be made at a minimum of two (2) hours prior to the start time of the detail. Charges incurred for police details that are cancelled without the required notice will be the responsibility of the contractor.

METHOD OR SEQUENCE OF CONSTRUCTION

The Contractor shall obtain approval for his proposed method and sequence of construction, including procedures for maintaining traffic, from the Engineer prior to performing the work.

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WORK SCHEDULE

Work on this project is restricted to a ten (10) hour day between the hours of 7:00am and 5:00pm, five

(5) days per week Monday through Friday, with the prime contractor and all subcontractors working on the same shift. No work shall be done on this contract on Saturday’s, Sunday’s, or holidays without the prior written approval by the Town.

OSHA REQUIREMENTS

The work to be performed under this Contract by the General Contractor and any and all subcontractors is to be performed in compliance with the Occupational Safety and Health Act of 1970, including any and all amendments thereto.

PRECAUTIONS UNDER ELECTRIC LINES

The Contractor’s attention is directed to the AASHTO Guide on Occupational Safety on Highway

Construction Projects, Subpart N, 1926.550, relating to construction equipment clearances at overhead electric lines, which states in part "... the minimum clearance between the lines and any part of the crane or load must be at least 10 feet from lines rated 50 KV or below, and greater distances for high voltage ...".

For the protection of personnel and equipment, the Contractor should be aware of this regulation especially during paving operations using large semi trailer vehicles.

OVERLOADED TRUCKS

Materials delivered to the project in motor vehicles or semi trailer units that exceed the legal maximum gross weight allowed for the particular class as specified in Section 19a of Chapter 90 of the

General Laws of Massachusetts will not be accepted.

The provisions of sub section 7.03 of the standard specifications shall still apply

PUBLIC SAFETY AND CONVENIENCE

Trenches shall not be excavated in traveled ways until all materials and equipment required for such work are at the site and available for immediate use. When work is not in progress, trenches in areas subject to public travel shall be covered with steel plates capable of safely sustaining a 36.5 ton truckload with impact without additional compensation. The work in each trench shall be practically continuous, with the placing of pipe, backfilling, and paving of the roadway surfaces closely following

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each preceding operation. Payment for steel plates will be included under the unit bid price for the respective item for which the work is being performed, regardless of width of trench.

The Contractor shall take every measure necessary for the protection of personnel and property.

The Contractor shall at all times, until written acceptance of the physical work by the Owner, be responsible for the protection of the work and shall take all precautions for preventing injuries to persons or damage to property on or about the project.

BARRICADES AND WARNING SIGNS (Supplementing Subsection 7.10)

All automotive equipment not protected by traffic cones or flares that is working on the project in areas open to traffic shall have one amber flashing or strobe warning light mounted on the cab roof or on the highest practical point of the machinery. These lights shall be in operation whenever the equipment is working or traveling in the project work area at a speed less than 25 M.P.H. Flashers must be visible to both oncoming and overtaking vehicular traffic and shall have a light source of 32 minimum candlepower and a flashing frequency of 50 to 60 times per minute.

All personnel who are working in areas open to traffic shall wear garments with a minimum rating of

ANSI Type R, Class 2 as specified under ANSI/ISEA 107-2015.

All vehicles except passenger cars which are assigned to the project which operate at speeds of 25

MPH or less shall have an official SLOW MOVING VEHICLE emblem displayed in accordance with the provisions of Section 7 of Chapter 90 of the General Laws as amended by Chapter 684 of the Acts of

1970.

STEEL PLATES IN CONSTRUCTION ZONES

At the end of each working day where trenches in areas of public travel are covered with steel plates, (Ref. Subsection 7.09), each edge of such plates shall be pinned and either beveled or protected by a slope of 2 feet horizontally to 1 inch vertically. Temporary bituminous concrete patching material shall be used to construct the ramps. The cost of necessary materials and their maintenance and removal will be considered incidental to the item involved with no separate payment.

PROTECTION OF STRUCTURES

Any structures (such as manholes, gate boxes, catch basins and the like) that are exposed above the grade of the surrounding pavement due to milling, reclamation, or paving operations shall be painted with safety orange fluorescent pavement marking paint by the Contractor as soon as possible after

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being exposed. Exposed structures shall never be left unpainted at the end of the working day. If, as determined by the Engineer, additional warning is required for exposed structures, cones or other warning devices shall be placed by the Contractor at no additional cost.

Any structures damaged by the activities of the Contractor will be repaired to their original condition or replaced by the Contractor at no additional cost to the Owner.

The Contractor shall exercise care when conducting his operations so that the debris does not enter any structures. All structures and pipes shall be kept clean and operable. All costs of debris removals, damages due to backups, and cleaning by others due to operations of the Contractor shall be borne by the Contractor.

DISPOSAL OF SURPLUS EXCAVATED MATERIALS

All surplus excavated material not required or suitable for reuse on the project, or otherwise not wanted by the Town, shall become the property of the Contractor and removed and disposed of outside and away from the limits of the project at no additional cost to the Town in accordance with all local rules and the approval of local governmental authorities having jurisdiction over the disposal of such materials. Any excess material that the Town decides to keep shall be transported to and stored at a location within Town to be identified by the Engineer. Loading, transporting, and unloading shall be done by the Contractor without additional compensation.

The Town shall have the option of retaining some or all of the pavement millings.

Payment for this work shall be included in the unit price under the applicable item from which the material was obtained.

USE OF TOWN SUPPLIED MATERIAL TO REPLACE UNSUITABLES

If existing material excavated during construction is deemed unsuitable for backfill, at the Town’s discretion the Town may supply additional material to be used as backfill, otherwise gravel borrow may be required. If the Town supplies additional material to be used as backfill to replace unsuitable materials, no extra payment will be made.

STREET SWEEPING

The Contractor shall be responsible for street sweeping by mechanical street sweeper vehicle to clear the paved surface of all debris, to the extent as determined by the Engineer. Exceptions for street sweeping may be made in certain circumstances per approval of the Engineer. The timing of the street

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sweeping operation should be such that the road remains sufficiently clean between the completion of the sweeping and the start of any reclamation and/or paving. Should the Engineer decide that the road surface requires additional sweeping, no additional compensation shall be offered to the

Contractor to complete this process. No additional compensation will be allowed when street sweeping operations are used as a means of clearing off and/or exposing areas of pavement covered with vegetation or debris.

There shall be no separate payment for street sweeping. Payment for such work shall be included in the various cold planning, reclaiming, and hot mix asphalt items. All material collected from the street sweeping process shall be disposed of by the contractor outside and away from the limits of the project in accordance with all local rules and regulations with no additional measurement or payment to be made.

DUST CONTROL

The Contractor is responsible for dust control throughout construction as required by the Engineer.

The use of water as a means of controlling dust may be required to minimize airborne dust, the cost of which is to be incidental to the contract. If the Engineer orders the use of liquid calcium chloride as a means of controlling dust, separate from what is required under Item 403, it will be paid for at the unit price for Item 440.1

SAWCUTS

Saw cuts shall be made in existing pavements to provide a neat, square edge at limits of excavation and to provide a clean joint where new pavement and sidewalks are to match existing. Saw cuts shall also be made where shown on the Contract Drawings, or otherwise directed by the Engineer. Saw cuts shall be made to the depth directed and shall be clean and even. All cuts shall be made using an approved power-driven saw. All saw cuts shall be considered incidental, and compensation will be included in the contract bid prices for the related work items.

COLD WEATHER PAVING

Paving operations will only be allowed when the air temperature is at least 40 degrees (F) and rising.

Paving will not be allowed from November 15 to March 15 without written authorization.

ADJUSTMENTS TO CASTINGS DURING WINTER SHUT-DOWN

Where the final top course of paving is not in place prior to winter shut-down of the project, castings

(frames and grates/covers, gate boxes, service boxes, etc…) shall be lowered as directed by the

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Engineer to be flush with the adjacent pavement. The cost of lowering the castings, along with the subsequent raising of castings prior to final paving, shall be borne by the Contractor.

DEWATERING

Where excavations become inundated with water, whether from groundwater or surface runoff, the

Contractor shall be responsible for dewatering the excavation prior to installing structures and/or pipes and backfill. Dewatering activities shall be performed in such a manner as to prevent the transport of any sediment downstream. Locations of materials and methods used for dewatering shall be approved by the Engineer prior to use. Costs associated with dewatering activities shall be considered incidental to the overall project, and no additional compensation shall be made.

PROTECTION OF EXISTING TREES

Trees and shrubs that are not designated on the plans, or by the Engineer, to be cut, removed, destroyed or trimmed shall be saved from harm and injury. The Contractor shall provide measures to prevent any harm and injury caused during construction operations. No separate payment will be made for this work.

DISTURBANCE OF EXISTING BOUNDS

Where existing bounds are disturbed by the Contractor’s activities, they shall be reset by a Registered

Land Surveyor at the Contractor’s expense. A certification by the Registered Land Surveyor performing the work shall be made and submitted to the Engineer for all bounds reset.

STAKEOUT

The Contractor shall be responsible for setting grade stakes for grading purposes and for re-establishing edges of pavement after reclamation or excavation operations, or as otherwise required by the Engineer.

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PAY ITEMS

ITEM- TEST PIT FOR EXPLORATION X- CUBIC YARD

Test Pit Excavation will be as specified in MassDOT “Item 141. Class A Trench Excavation” except that no additional multiplier will be applied.

ITEM- CLASS B TRENCH EXCAVATION X- CUBIC YARD

Class B Trench Excavation shall include all trench excavation except Class B Rock Excavation at a depth greater than five feet (5’). All trench excavation at depths less than five feet (5’) shall be included in the item for which the trench is being excavated, and no additional payment will be made for such excavation.

ITEM- DRAINAGE STRUCTURES REMOVED X-EACH

Removal of drainage structures shall include removal of castings. Castings shall remain the property of Owner and set aside for reuse by Contractor or to be picked up by Owner as directed by the

Engineer. All other debris generated by removal of drainage structures shall become the property of the Contractor, and shall be properly disposed of.

ITEM- CATCH BASIN X-EACH

ITEM- MANHOLE (BASED ON 6 ½ FOOT STANDARD DEPTH) X-EACH

Drainage and sewer structures shall be installed on a firm bedding of crushed stone. Extra depth excavation for installation of the crushed stone shall be included in the payment for the drainage structure being installed. Hoods and 4’ deep sumps shall be installed in all new catch basins.

The removal of existing pipes within the same excavation and the connection to existing and proposed drainage pipes shall be considered as incidental work under these items and no additional compensation will be made, as well as the plugging of existing pipes outside the structure that are not to be reconnected. Existing connected drains coming from private property shall be brought to the attention of the Engineer and reconnected to the new structure whether or not they are shown on the plans, unless directed otherwise by the Engineer.

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The forming of invert tables in drainage and sewer manholes to Town standards shall be included in the payment for the structure being installed.

Catch Basins, manholes, and gutter inlets shall be paid for at the contract unit price per each

(adjustments for extra depth shall be made proportional to the standard depth), and shall include payment for all necessary labor, materials, and equipment required to satisfactorily complete the work, including excavation to the depths shown on the plan, crushed stone bedding, backfill, pipe connections, and formation of inverts. Hoods will be paid separately.

ITEM- CATCH BASIN FRAME & GRATE – MUNICIPAL STANDARD X-EACH

ITEM- MANHOLE FRAME & COVER – MUNICIPAL STANDARD X-EACH

All catch basin and manholes frames, grates and covers shall be as manufactured by EJ (model numbers listed below) or approved equal.

Catch basin frames shall be 24” x 24” x 8” nominal size. Frame shall be three flange (0MA554000005) when adjacent to granite curb or granite inlet, and four flange (0MA554000006) in all other cases. Six-inch (three flange: 0MA554000003; four flange: 0MA554000004) or four-inch (three flange:

0MA554000001; four flange: 0MA554000002) versions may be substituted only when installation of the 8” frame is impractical and when approved by the Engineer.

Catch basin grates for generic applications and multi-directional flows shall be square hole type grate

(0MA552000075). For sloped gutter applications where flow is one-directional, grates shall be cascade style (0MA552000076 for flow from left; 0MA552000077 for flow from right). In pedestrian areas where ADA compliance is required, grate shall be ADA type (0MA552000078).

Manhole frames shall be 26” x 8” MassDOT Type B (0MA211000002). Shallower frames may be substituted only when installation of the 8” frame is impractical and when approved by the Engineer.

Manhole covers shall be solid 26” covers labelled according to their use (“SEWER” for sanitary sewer:

0MA211000004; “DRAIN” for storm drainage: 0MA211000005; plain for all other uses:

0MA211000003).

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ITEM- FRAME & GRATE (OR COVER) REMOVED X-EACH

This item is to be used in conjunction with the relevant Item(s) under Section 220 when road reclamation or reconstruction activities require the castings to be removed and the structures plated.

Plating of structures for the duration of reclamation or reconstruction activities is to be included under this item. If gravel borrow is required to fill the void after removal of the casting and plating of the structure, it will be included under this item. This item is not to be used in conjunction with Item

146., under which the removal of castings is included. If castings removed under this item are not to be reused, they shall become the property of the Owner and shall be set aside by the Contractor to be picked up by Owner.

ITEM- CATCH BASIN HOOD X-EACH

Catch basin hoods shall be Eliminator Oil & Debris Trap or approved equal, sized for outlet pipe.

ITEM- PIPE REMOVED & DISPOSED X-LF

Pipe removal under this item shall conform to the requirements of Section 270 except that the pipe shall be properly disposed of off-site. This item shall only be used when the pipe removal requires a separate trench; when new pipe (Item 252) is laid in the same location where existing pipe is removed, the removal and disposal of such pipe shall be considered incidental to Item 252 and no additional payment will made. Pipe size shall be indicated in the item number (e.g. Item 272.12 for removal and disposal of 12” pipe). This item does not include removal & disposal of asbestos cement pipe, which is covered under Item 273.

ITEM- ASBESTOS CEMENT PIPE REMOVED X-LF

Pipe removal under this item shall conform to the requirements of pipe removal item, except that proper handling and disposal of the asbestos cement pipe shall be included. Such disposal shall be documented, and the documentation shall be submitted to the Engineer. Work under this item must be performed by qualified personnel only. Pipe size shall be indicated in the item number (e.g. Item for removal and disposal of 12” asbestos cement pipe).

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ITEM- WATER GATE BOX REMOVED AND RESET X-EACH

This item is to be used when road reclamation or reconstruction activities require the gate boxes to be removed and the gates plated. Plating of water gates for the duration of reclamation or reconstruction activities is to be included under this item. This item shall include resetting the gate boxes at the new surface elevation. If determined by the Engineer that a gate box should be replaced, a replacement shall be provided by the Southbridge Water Department at no cost to the Contractor, and the removed gate box shall remain property of the Owner and shall be set aside by the

Contractor to be picked up by Owner.

ITEM- GRANITE CURB TYPE VA4 X-FOOT

ITEM- GRANITE CURB INLET X-EACH

ITEM- GRANITE CURB CORNER TYPE A X-EACH

ITEM- CURB REMOVED AND RESET X-FOOT

ITEM- CURB REMOVED AND STACKED X-FOOT

The work under these items shall include saw cutting existing pavements, excavation, gravel foundation and backfilling, curbing, and cement concrete, as shown on the details. Removal and disposal of existing bituminous, concrete, or broken granite curbing shall be considered incidental to the installation of new curbing, and no separate payment will be made.

All new curb will be paid the same regardless of whether or not the pieces are curved or straight, no distinction made for curved pieces for payment purposes. If granite edging is required, it will also be paid in the same manner. Resetting of existing curb inlet stones, splayed end transition stones, wheelchair ramp transition stones, and granite edging shall be included under Item- Curb Removed and Reset, and no additional payment will be made for the resetting of these curb stones.

All work requiring chamfering or cutting of curb or edging shall be considered incidental and shall be included in the unit bid price of the respective item.

All existing curb or edging determined suitable for reuse on the project which is not reset at its present location shall be removed and temporarily stacked by the Contractor for further reuse within the project limits as directed by the Engineer. Costs of transporting and stacking all such curb or edging to be re-used on the project shall be included in the contract bid price for Item 580 – Curb Removed and Reset.

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All existing curb or edging that is not to be re-used on the project shall be transported to the

Department of Public Works Facility at 185 Guelphwood Road and stockpiled in a location identified by the engineer at no additional cost. All such transporting and stacking of curb or edging shall be incidental to the contract. Any curb determined by the Engineer to be unsuitable for further reuse shall become the property of the Contractor and be disposed of off the project site by the Contractor without additional compensation. Costs of transporting and stacking all such curb or edging to be re-used on the project shall be included in the contract bid price for Item– Curb Removed and Stacked.

New or existing curb stones may be used for wheelchair ramp transition curbs. Curbs shall be cut in such a way so that a flush joint is formed where the transition curb meets the adjacent curb at all locations. The length of the transition is to be in accordance with the Massachusetts Architectural Access

Board’s requirements.

New or existing curb stones may be used to transition curb to berm or to flush paving grade. Transition stones, minimum four feet on either side, will also be required at new curb inlets not adjacent to granite curbing. New transition curbs shall be included and paid for under Item- Granite Curb Type VA4. New granite curb inlets straight and radius shall be paid for under Item– Granite Curb Inlet.

Payment for the above items shall be at the contract unit price per linear foot, complete in place, which price shall be full compensation for curbing, cutting and chamfering of curb as required, excavation, gravel for foundation and backfill, installation, concrete, transporting, and all labor, equipment and materials necessary to complete the work

ITEM- SILT SACK X-EACH

During construction and until disturbed soils are stabilized, sediment control silt sacks shall be installed in catch basins located in areas subject to stormwater runoff from disturbed areas, and where required by the Engineer. Silt sacks shall be installed in accordance with the details shown on the plans and this special provision.

Silt sacks shall be manufactured from a specially designed woven polypropylene geotextile and sewn by a double needle machine, using a high strength nylon thread. Silt sacks shall be manufactured to fit the opening of the catch basin and shall have integral straps or handles to facilitate lifting and emptying the sack. Silt sacks shall also have a marking or other visual means of indicating when the sack should be emptied.

Where the catch basin to be protected has an adjacent curb inlet, the silt sack shall also have an integral foam block insert that will fit into the curb inlet opening to prevent runoff from bypassing the silt sack.

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The cost of these foam blocks is to be included in the unit cost of the silt sack, no separate payment will be made.

Item– Silt Sack will be measured per each catch basin that has a silt sack installed. Payment for silt sacks will be made at the contract unit bid price per each, complete and in place, which price shall be full compensation for all labor, equipment and materials necessary to install, inspect, maintain, clean, reinstall, and remove the silt sack until disturbed areas have been stabilized, or until otherwise determined by the Engineer.

Protection, maintenance, and final cleaning of catch basins installed under Item– Catch Basin shall be incidental to that item and no additional payment will be made for such protection, maintenance, and final cleaning.

ITEM- CEMENT CONCRETE SIDEWALK X-SQUARE YARD

ITEM- CEMENT CONCRETE SIDEWALK AT DRIVEWAY X-SQUARE YARD

ITEM- CEMENT CONCRETE WHEELCHAIR RAMP X-SQUARE YARD

ITEM- HOT MIX ASPHALT SIDEWALK OR DRIVEWAY APRON X- TON

In meeting existing sidewalks and driveways in the above areas, the Contractor shall saw cut by mechanical means using an approved power driven saw a neat straight line to permit the new work to blend satisfactorily with contiguous existing surfaces. Where necessary for construction of new sidewalk or blending with existing sidewalk, or when required by the Engineer, removal of existing sidewalk shall be considered incidental and shall be included in the unit bid price of the respective item.

The work under these items shall include saw cutting existing pavements, excavation, fine grading and compacting, placing an 8” gravel foundation, and installing the hot mix asphalt.

Where the existing subbase material is deemed suitable by the Engineer, it may be left in place and re-used. Reclaimed pavement borrow material may be substituted for gravel borrow for sidewalk foundations, where directed by the Engineer, however no additional payment will be made for this substitution.

Hot mix asphalt sidewalk and driveway aprons shall be laid in two courses to a depth after compaction of 3 inches. The binder course shall be 1.5 inches thick, comprise of a minimum 0.5” bituminous, and parallel to the proposed grade of the finished surface. The top course shall be 1.5 inches in thickness after rolling and flush with the adjacent curb and ground surface and be comprised of 0.375” or 0.5”

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bituminous at the engineers discretion. Prior to placement of the top course, the binder course shall be swept clean and a tack coat applied.

Payment for work under these items shall be made at the unit contract price per ton; wheelchair ramp, walk surface, and driveways. And shall be full compensation for all necessary labor, equipment, and materials required to satisfactorily complete the work including saw cutting, excavation, gravel borrow, fine grading, and tack coat.

ITEM- LOAM & SEED X- SQUARE YARD

Loam borrow complying with material specification section M1.05.0 shall pass a 3/8" screen and be placed and graded to a depth of 4”-6". Grass seed complying with material specification section M6.03.0 shall be evenly spread over the loam at a rate of two (2) pounds per 100 square yards. Area shall be spread with straw mulch (M6.04.2) or another material approved by the Engineer.

Payment will be made at the contract unit price per square yard of loam placed at the specified depths, and will include all necessary labor, equipment, and materials to satisfactorily complete the work including subgrade preparation, loam borrow, seeding and mulching.

ITEM- EROSION CONTROL BLANKETS X-SQUARE YARD

This Item will involve furnishing and installing temporary degradable erosion control blankets (ECBs) on disturbed areas where slopes meet or exceed a 2:1 grade, at vegetated drainage swales, and other applications as directed by the Engineer. ECBs shall be model number “C125BN” as manufactured by

North America Green, or approved equal. ECBs shall be composed of a core of 100% coconut fibers encased between two confining meshes of degradable material. ECBs shall be installed according to the manufacturer’s recommendations and installation instructions, including but not limited to staple pattern & spacing, anchoring, lapping & splicing, and origin & termination details.

Payment will be made at the contract unit price per square yard of erosion control blanket installed.

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ESCALATION/DE-ESCALATION FOR HMA, DIESEL, GASOLINE, AND PORTLAND CEMENT

This Contract may be funded in part by Massachusetts DOT Chapter 90 or other State funding sources and contains mandatory price adjustments:

This Contract contains a price adjustment for Hot Mix Asphalt. The base price for liquid asphalt on this project is $637.50 per ton (April 2024). Refer to MassDOT Document 00811.

This Contract contains price adjustments for diesel fuel and gasoline. The base price for diesel fuel on this project is $3.155 per gallon (March 2024). The base price for gasoline is $2.695 per gallon (March

2024). Refer to MassDOT Document 00812.

This Contract contains price adjustments for Portland cement. The base price for Portland cement on this project is $425.53 per ton (March 2024). Refer to MassDOT Document 00814.