Amendment W912WJ22Q0139-0001.pdf

W13G86216708420001

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

Amendment is necessary to post the Site Visit Attendee list as w ell as provide responses to questions from industry.

Closing remains August 26, 2022 at 5:00 PM Eastern.

1. CONTRACT ID CODE PAGE OF PAGES

1 18

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 18-Aug-2022

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W912WJ22Q0139

X 9B. DATED (SEE ITEM 11)

05-Aug-2022

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

18-Aug-2022

CODE

U S ARMY ENGR DISTRICT, NEW ENGLAND

696 VIRGINIA RD

CONCORD MA 01742-2751

W912WJ 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

Sheila.M.Winston@usace.army.milEMAIL:978-318-8159TEL:

SHEILA M WINSTONVINCUILLA / CHIEF, CONTRACTING DIVISION

W912WJ22Q0139

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

REQUEST FOR INFORMATION

Question 1. We are not sure if you want to change the amount of cracks, but we actually had someone measure the cracks. On the 2 bike paths we measured 40,237 LF, and on the parking lots 15,292 LF. That is a total of 55,529 LF. This does not include where the mastic is going. Should we price the cracksealant at 55,529 LF or the 30,000 +/- in the solicitation documents? This is a large discrepancy.

Response: Contractor shall price for Crack Sealant of all cracks, including hairline cracks, for 126,000 Square Yards of Pavement. The “+/- 35,000 Linear Feet of Cracks” listed in the Statement of Work was rough order of magnitude quantity developed from a visual inspection. Contractor shall price the crack sealant for quantity necessary to seal all cracks, including hairline cracks.

Question 2. Are the walkways along the parking lots being sealed?

Response: No, any adjacent walkways along the parking lots are not required to be sealed.

Question 3. Can we leave all the grass and overgrowth at the base of the curbing somewhere on the site?

Response: Yes, the TPOC will provide an onsite location for this material.

Question 4. The use of detac is fine where the sealcoating is not being done, but in the parking lots Black Beauty should be used. Is any of the detac is not exactly on the crack sealant and get on the parking lot the sealer will not bond. Recommendation is to use black beauty on the parking lots.

Response: The use of this or similar products in the parking lots is acceptable.

SITE VISIT ATTENDEE LIST

NAME COMPANY

Robert Quinn US Pavement Service Travis Germano USACE

SECTION C - DESCRIPTIONS AND SPECIFICATIONS

The following have been modified:

STATEMENT OF WORK

Random Crack Repair and Parking Lot Sealcoating Cape Cod Canal

U.S. Army Corps of Engineers

Bourne, Massachusetts Statement of Work

I. General

1. Scope of work

Furnish all labor, equipment, and materials to perform random pavement crack sealing, parking lot sealcoating, and line striping at the Cape Cod Canal Project. The work includes crack sealing approximately 14 miles of service road (7 miles on each side of canal). The work includes crack sealing, priming, and sealcoating Sites 160 and 260. The work includes crack sealing, priming, sealcoating, and line striping/pavement markings at three parking lots (See attached Figures 1-6 and Photos 1-6).

No onsite work shall be performed between Memorial Day to Labor Day (no summer season work).

A. Crack Sealant, a single component, low modulus, hot applied crack and joint sealant, for all cracks less than 1 ½”, including hairline cracks:

1. 126,000 Square Yards of Pavement (+/- 35,000 Linear Feet of Cracks). Contractor to verify total linear feet of cracks and quote accordingly.

2. Work includes preparation and repair of all cracks, including previously repaired cracks, which have subsequently failed.

B. Crack Sealant Mastic, hot-applied polymer modified asphalt mixed with specially designed aggregate and modifier combinations to properly fill wide cracks and defects, for all cracks greater than 1 ½”, including filling and leveling of wide transverse or longitudinal cracks and joints, filling potholes and utility cuts, filling in ponding, localized skin patch repairs and leveling faulted areas:

1. 126,000 Square Yards of Pavement (Provide and Install 7000 Pounds of Material)

C. Polymer Modified Pavement Sealer (3 Parking Lots: Tidal Flats, Bourne Recreation Area, Sagamore Recreation Area; Site 160, and Site 260)

1. 15,000 Square Yards Pavement (2 Coats)

D. Waterborne Pavement Markings (3 Parking Lots: Tidal Flats, Bourne Recreation Area, Sagamore Recreation Area)

1. 5,500 Linear Feet (Match Existing Pavement Markings)

At all repair areas, the work includes all barriers, flashing barricade lights, signage, and designated flaggers to protect the public during fieldwork. At all repair areas, work includes removal of debris/materials and proper disposal or recycling.

2. Locations

The general location of the service roads, (3) parking lots, site 160, and site 260 at the Canal Project is shown on Figure 1. The work areas are located on federal property in the Town of Bourne and Sandwich, MA. The service road is closed to motorized vehicles and used extensively by the public for recreational activities. Access for construction vehicles is limited to existing access gates. With an approved traffic control plan, the contractor will be permitted to close 1 mile of service road at a time, progressing as a “rolling” operation to continue repairing cracks. The service road must be clear for safe pedestrian, bike, and vehicular travel each night and whenever construction work is not occurring.

3. Site Visits

The service roads open to the public with non-motorized vehicles at any time. Interested vendors can inspect the existing conditions of the service roads at any time with non-motorized vehicles. No extra payment will be allowed for perceived additional work caused by unfamiliarity with site conditions and requirements. A scheduled site visit will be provided for all interested parties, with a date and time to be determined. Contact the Technical Point of Contact to confirm attendance for site visit. The Technical Point of Contact (TPOC) for the project is Travis Germano (978) 318-8550 or (Travis.J.Germano@usace.army.mil).

4. Schedule

Work shall commence within 15 days of notice to proceed and shall be completed within 210 days from notice to proceed. The project area will be open to the contractor Monday through Friday, with work hours form 0700-1800. All work must be completed within the period of performance established by the Contract. No work shall be done on weekends or Government holidays. No onsite work shall be performed between Memorial Day to Labor Day (no summer season work).

Onsite work shall be completed expeditiously to minimize impacts to recreational activities.

Work shall not be started on the road unless all labor, equipment, and materials are onsite to complete work. The contractor shall only close one parking lot at a time. Work on the next parking lot shall not commence until the previous parking lot is opened.

5. Safety Requirements

All work shall be conducted in accordance with the U.S. Army Corps of Engineers Safety and Health Requirements Manual (EM 385-1-1, most recent edition), and all applicable Occupational Safety and Health Administration (OSHA), federal, state, and local safety and health requirements. Perform work in a safe manner that protects both workers and the general public from hazards. All equipment shall be in good working order with all safety features as recommended by the manufacturer. A copy of EM 385-1-1 can be accessed at the project office or electronically at the following link:

https://www.publications.usace.army.mil/Portals/76/Publications/EngineerManuals/EM_385- 1-1.pdf

Project staff reserve the right to cease work at any time should the safety of employees, contractors, and/or the public become jeopardized.

The contractor shall prepare an Accident Prevention Plan (APP) specific to the activities being performed, at a minimum it must meet the requirements of EM 385-1-1, Appendix A.

It shall include Activity Hazard Analyses (AHAs) as described below.

An AHA shall be submitted for each major phase of work. A major phase of work is defined as an operation involving a type of work presenting hazards not experienced in previous operations or where a new subcontractor or work crew is to perform the work. The analysis shall define all activities to be performed, identify the sequence of work, the specific hazards anticipated, and the control measures to be implemented to eliminate or reduce each hazard to an acceptable level. The AHA shall be continuously reviewed and revised to address changing site conditions as appropriate.

A preparatory meeting shall be conducted by the prime contractor to discuss the APP contents with all effected onsite employees. The Prime Contractor is responsible for informing the subcontractors of the safety provisions under the terms of the contract, the penalties for noncompliance, and inspecting subcontractor operations to ensure that accident prevention responsibilities are being carried out.

Weekly safety meetings shall be held and documented. Records shall be available to the Technical Point of Contact upon request.

The contractor shall employ a minimum of one Competent Person (CP) at each project site to function as the Site Safety and Health Officer (SSHO). The SSHO shall be present at the project site and report to the contractor’s upper management. The SSHO is required to have related construction experience and have at a minimum completed a 10 Hour OSHA training.

All accidents and near misses shall be investigated by the contractor and reported to the Technical Point of Contact immediately.

The contractor shall provide daily production and quality control reports, employee work hours, and certified payrolls electronically to the Technical Point of Contact.

COVID-19 Precautions: As part of the APP and AHAs include site specific COVID-19 monitoring procedures which address, at a minimum, recommended protocols and mandates in accordance with Centers for Disease Control and Prevention (CDC) guidelines. Employee training on the signs, symptoms, and protection measures in accordance with CDC guidelines.

6. Preconstruction Conference

Prior to the start of any work, the contractor and Technical Point of Contact will schedule and conduct a “Preconstruction Conference”. The contractor’s staff that is responsible for quality and safety on the job site will attend this meeting. No work may be performed under this contract prior to this conference. The purpose of the conference is to enable the Technical Point of Contact to outline the requirements in terms of safety, quality, communications, inspections, material storage, submittals, and payments.

7. Permits

The contractor shall, without additional expense to the Government, be responsible for obtaining any necessary licenses, permits, and letters of certification. The contractor shall comply with any applicable federal, state, county, and municipal laws, codes, and regulations in connection with the performance of the work specified under this contract.

8. Security

The contractor will comply with all established security policies at Cape Cod Canal Field Office. Potential periods of heightened security may affect access to work areas. During periods of heightened security, the Government reserves the right, at any time, to close any property and reschedule work. The contractor shall be given at least 24-hour notice of any such closure.

9. Contractor Conduct

The work area is located on federal property on a service road open to the public for recreation activities. Contractor and employees must act in a safe and professional manner at all times. Alcohol and firearms are prohibited on project grounds.

10. Payment

Payment shall be made after final inspection and acceptance by the Government, the contractor must submit an invoice, utilizing Form ENG 93, to the Technical Point of Contact.

The invoice shall include the name of contractor (as per SAM registration), invoice date, contract number, description of work completed, and total amount due. For jobs greater than 30 days the contractor may request progress payments. Invoices may be mailed to:

US Army Corps of Engineers Cape Cod Canal Field Office P.O. Box 1555 Buzzards Bay, MA 02532 Attn: Travis Germano or email to travis.j.germano@usace.army.mil

II. Technical Requirements:

Part 1 General:

Contractor’s work and responsibility includes all job scheduling, personnel, equipment, materials, supervision, and quality control necessary to perform the work. Contractor to provide bathroom and sanitation facilities for workers as required.

1. Requests for Information:

After Contract award, requests concerning the work of this project should be directed to the Technical Point of Contact at the Cape Cod Canal Office at (978) 318-8550 or (Travis.J.Germano@usace.army.mil)

2. Submittals:

Contractor shall provide submittals that show pertinent details of proposed materials that allows confirmation the materials are in accordance with requirements listed in the materials section of this scope of work. Although the Government technically reviews submittals, the contractor’s work must be prosecuted using proper internal controls and review procedures.

Contractor submittals must be reviewed and accepted by the government prior to the commencement of any field activities. Contractor shall provide required submittals to the Technical Point of Contact within 30 days of notice to proceed.

Required submittals include:

1. Accident Prevention Plan and Activity Hazard Analyses for all fieldwork.

2. Schedule

3. Work Plan and Traffic Control Plan – Provide a site plan with description of planned access points, storage of materials, and haul routes for trucks and equipment. Include description of signage, barriers, flashing barricade lights, traffic control devices and flaggers to protect the general public from hazards. Include the means and methods to control pedestrian, bike, and vehicular travel within the work areas.

Include Specifications for Equipment:

(1) Air Compressor with Moisture Traps

(2) Gas Powered Air-Broom Sweeper

(3) Hot Compressed Air (HCA) Heat Lance torch

(4) Melter (Mastic, Crack Seal, and Sealer)

(5) Waterborne Application Equipment

(6) Other Miscellaneous Equipment, etc.

For all materials to be used on the project, the contractor shall provide the following information:

(1) Manufacturer’s name

(2) Catalog number

(3) Specifications

(4) Any other information necessary to approve the materials

(5) Safety Data Sheets (SDS) shall be submitted along with the product data for any potentially hazardous materials such as adhesives and flux materials.

3. Government Resources:

The contractor is responsible for providing all resources to complete the project. The Government will not provide any equipment or services.

4. Omissions:

This scope of work may not cover all specified activities, steps, and procedures required to supply the contract product. In case of omission, the normal industry, state, or federal standards, practices, specifications, and/or guides shall prevail. In no instance shall an omission be reason to produce less than an acceptable product.

5. Quality Control and Quality Assurance:

The contractor is responsible for the quality control of all work. The Government has the right to inspect and test all items called for by the contract, to the extent practicable at all times during the term of the contract.

6. Other Contracts:

The Government may undertake or award other contracts for additional work not related to this contract, the contractor shall fully cooperate with other contractors and Government employees. The contractor shall not commit or permit any act, which will interfere with the performance of work by another contractor, or by Government employees.

7. Storage and Equipment Staging Areas:

Storage and equipment staging areas shall be coordinated with TPOC. The contractor is responsible for protecting all stored materials and equipment. The contractor is responsible for receiving, unloading and movement of all materials. Excavated materials shall be removed from storage areas promptly at the completion of construction work. The contractor shall ensure that stored materials do not migrate into the waterway or onto roadways. The Government is not responsible for damage or theft of contractor equipment or materials.

8. Clean Up:

All work areas are considered an environmentally sensitive. Contractor shall inspect all equipment and materials used to prevent the release of any contaminants to the environment.

The contractor shall practice good housekeeping to maintain a safe job site. The contractor shall keep the work area, including any storage areas, free from the accumulation of waste materials.

Upon completing work, the contractor shall remove all tools, equipment, and materials that are not the property of the government and shall clean up the job site to the satisfaction of the Government. Areas adjacent to the pavement repairs shall be left neat and free of any debris from construction work.

9. Sustainability:

EPA Designated: Under the Comprehensive Procurement Guidelines (CPG) program, the Environmental Protection Agency (EPA) designates products that are or can be made with recovered materials and recommends practices for buying these products. Any designated product that is being offered or supplied under this contract shall meet the minimum recommended content levels as identified under the CPG program. Visit https://www.epa.gov/smm/comprehensive-procurement-guideline-cpg-program for a complete list of designated products and the associated recommended contents levels.

Offerors must be able to demonstrate that each offered products meets minimum content levels upon request.

Part 2 Materials:

1. Mastic:

Provide mastic used for sealing, filling, and repairing distresses in asphalt concrete pavements that are greater than 1 1/2”. Provide a hot-applied, single component, pourable, aggregate filled, polymer modified asphalt mastic used for maintenance, repair, and preservation of pavement surfaces. Typical uses include sealing, filling, and leveling of wide transverse or longitudinal cracks and joints, filling potholes and utility cuts, filling in ponding, filling spalls, pop outs, and corner breaks, localized skin patch repairs and leveling depressed thermal cracks and faulted areas, leveling around manhole covers or other settlement at structures, capping settled utility cuts.

a. Meets ASTM Specification D8260 Type I.

b. The material shall be delivered in the manufacturer’s original container. The material shall be pre-packaged with the Manufacturers name and product name marked on each container. The material shall conform to the following specification:

i. Parameter Mastic

ii. Color Black

iii. Cone Penetration 77°F (150G/5s) (D5329) 60 Max

iv. Tensile Adhesion: 77°F/25°C (D5329) 400% Min

v. Softening Point (D36) 180 F Min

vi. Specific Gravity (ASTM D792) 1.92 Max

vii. Resilience: 77°F/25°C (D5329) 30% Min

viii. Minimum Application Temperature 375F

ix. Maximum Application Temperature 410F

x. Aggregate Abrasion Resistance (ASTM C131) 35% Max

2. Crack Sealant:

Provide a single component, low modulus, hot applied crack and joint sealant, for all cracks less than 1 ½”, including hairline cracks.

a. Meets ASTM D3405, and ASTM-D6690 Type IV.

b. The material shall be delivered in the manufacturer’s original container. The material shall be pre-packaged with the Manufacturers name and product name marked on each container. The material shall conform to the following specification:

i. Parameter Crack Sealant

ii. Color Black

iii. Cone Penetration 77°F (150G/5s) (D5329) 90-150

iv. Softening Point (D36) 176 F Min

v. Specific Gravity (ASTM D792) 1.14

vi. Resilience: 77°F (D5329) 60% Min

vii. Asphalt Compatibility PASSES

viii. Viscosity @ 370 10 ± 10 cps

ix. Minimum Application Temperature 350F

x. Maximum Application Temperature 400F

3. Liquid Detackifier:

Provide an environmentally friendly and biodegradable liquid detackifier for hot-applied crack sealants to prevent tracking of freshly applied hot pour crack sealants/mastics, eliminate stickiness of freshly applied sealant, and to provide a barrier between tires and fresh sealant to reduce down time to traffic.

4. Pavement Sealer:

Polymer Modified Pavement Sealer (3 Parking Lots: Tidal Flats, Bourne Recreation Area, Sagamore Recreation Area; Site 160, and Site 260)

a. A mineral filled asphalt emulsion pavement sealer blended with polymers and surfactants for superior adhesion, flexibility, and durability.

b. Compliant with ASTM D8099/D8099M-17

c. Compliant with ASTM Specification D5727, “Standard Specification for Emulsified Refined Coal Tar (Mineral Colloid Type)”, Federal Specification R-P-355e, “Pitch, Coal Tar Emulsion (Coating for Bituminous Pavements)”, and ASTM D3320, “Standard Specification for Emulsified Coal-Tar Pitch (Mineral Colloid Type)”.

d. Polymer modified emulsified asphalt shall meet the requirements:

Test ASTM D5727 and Fed R-P-355e Spec. Limits

Uniformity No Separation, coagulation, or settlement that cannot be overcome by moderate stirring

Wet Film Continuity Uniform homogeneous consistency Resistance to Freezing Return to homogeneous when stirred Density, 77 °F 1.2 g/ml (10 lbs./gal) minimum Residue by Evaporation 47% minimum Water Content 53% maximum Resistance to Volatilization 10% maximum

Solubility of Residue in CS2 20% minimum Ash Content of Residue 30-40% Drying time, firm set 8 h maximum Resistance to Heat No blistering, sagging, slipping Resistance to Kerosene No adhesion loss, penetration, or film softening Resistance to Water No adhesion loss, blistering, or re-emulsification Flexibility No flaking, cracking, or adhesion loss Impact Resistance No chipping, flaking, cracking, or adhesion loss more than 6.4 mm (1/4 inch) beyond the periphery of the imp

e. Mix Design (2 Coats)

Coat Resin Emulsion

Sealer

Water(1) Sand(2) Polymer Application Rate

(Gallons) (Gallons) (Pounds) (Gallons) (Gallons/Square

Yard)

1st 100 30-50 400 4 0.15

2nd 100 30-50 400 4 0.1

NOTES:

1. Water shall be clean and potable

2. Sand shall be clean, angular quartz or slag sand meeting AFS 50-70 gradation, or equivalent

f. Latex Primer – A solvent-based asphalt primer used to improve adhesion of asphalt products to pavement surface shall meet the requirements:

a. Meets ASTM D41, Type II.

b. Water, volume % 0.5% max.

c. Saybolt Furol Viscosity, 77°F 120-500 seconds

d. Distillation, volume of primer

i. To 437°F 30% min.

ii. To 680°F 60% max.

e. Residue to 680°F (360°C)

i. Penetration, 77°F 20 to 50

ii. Solubility 99% min.

5. Waterborne Pavement Markings:

(3 Parking Lots: Tidal Flats, Bourne Recreation, Sagamore Recreation)

a. Conform to FS TT-P-1952, Type II, and ASTM D6628 for roads and automotive parking areas.

b. White and Yellow markings shall replace all existing standard markings, including, but not limited to standard parking lot spaces, handicap, stop bars, cross hatch, no parking, etc.

c. Temperature Application Requirements

i. Ambient Air - 50°F and rising

ii. Pavement Surface - 50°F and rising

iii. Apply paint at a rate of 100 feet per gallon.

Part 3 Equipment

1. Equipment used in the performance of the work required by this section of the specification shall be subject to approval by the TPOC and maintained in a satisfactory working condition at all times.

a. Air Compressor: Air compressors shall be capable of furnishing not less than 100 cubic feet of air per minute at not less than 90 lbs. per square inch pressure at the nozzle. The compressor shall be equipped with traps that will maintain the compressed air free of oil and water.

b. Manually operated, gas powered air-broom or self-propelled sweeper designed especially for use in cleaning pavements shall be used to remove debris, dirt, and dust from the pavement service.

c. Manually operated, gas powered large heavy-duty 9″ diameter twisted wire wheel brush used to remove debris, dirt, and dust from the cracks. Worn brushes should not be used to lean the cracks because they will not effectively remove residual debris.

d. Hot Compressed Air (HCA) Heat Lance torch generating 2,000°F and 90 CFM.

i. Heated Air Temperatures: 600° F to 3000° F

ii. Exit Heated Air: Up to 3000 ft. per second

iii. Propane: 5 to 30 psi

iv. Compressed Air Supply 150 + cfm, 90 - 175 psi

v. Propane Consumption: 12 Lbs. per hour @ 20 psi

vi. BTU’s: 1,500,000

e. Melter: The unit used to melt or maintain the mastic, crack sealant, and sealer compound at the recommended application temperature shall be the indirect fired type, minimum 125 gallons volumetric capacity. It shall be equipped with a remote heat exchanger and hot oil circulation pump capable of maintaining a consistent temperature of the heat transfer oil and a recording type thermometer for indicating the temperature of the sealant. Separate digital readouts shall display the temperatures of the hot oil and material. The heat transfer oil shall be circulated to all sides and the bottom of the vat containing the crack sealant compound making a continuous loop back to the heat exchanger and having a flash point of not less than 600°F. The melter shall be equipped with a satisfactory means of agitating the material at all times.

Part 4 Execution:

1. All onsite work shall be coordinated with the Technical Point of Contact prior to start of mobilization.

2. The Canal service roads have gates to control unauthorized vehicle access. The contractor will be provided a key to open the gates at the pre-construction conference. The contractor shall return the key to the government upon completion of the field work and prior to final payment. The contractor shall ensure any gate unlocked for access is re-secured upon entry and exit. The contractor shall comply with the 10 miles per hour speed limit for all vehicles on the service roads and shall use caution when approaching Canal visitors. All contractor vehicles shall have flashing yellow lights active and running at all times when on the service road.

3. Contractor shall provide, erect, and maintain all necessary signs, barriers, flashing barricade lights, and safeguards required for public safety. The contractor is responsible for preventing the general public from encountering hazards associated with the work. Place appropriate traffic controls in accordance with part 6, Temporary Controls, of the Federal Highway Administration Manual on Uniform Traffic Control devices (MUTCD) and MASSDOT Work Zone Safety Guidelines to protect the work site for the duration of the repairs.

4. The contractor shall employ ample personnel and sufficient equipment to accomplish the work of this contract in the least amount of time and be sequenced to minimize impacts on the north service road. The road is used extensively by the public for recreational activities that occur 24 hours per day. At the end of each workday the contractor shall ensure that the road surface is left safe for public use.

5. With an approved traffic control plan, the contractor will be permitted to close 1 mile of service road at a time, progressing as a “rolling” operation to continue repairing cracks.

Contractor shall allow/maintain a safe access walkway on the road shoulder to enable pedestrians to safely walk pass the work area. Contractor shall continuously reposition signage, traffic cones, and flaggers to maintain a safe working area and prevent any impacts/damage to newly repaired cracks. The contractor shall provide a sufficient number of designated flaggers and vehicles to control traffic and ensure work zone safety. At a minimum, contractor shall maintain a designated flagger, for traffic control, at each end of work zone 100% of the time. The flaggers only responsibilities shall be traffic control, appropriately positioning warning and detour signs around construction site, setting up barricades and traffic cones to cordon off certain areas. The work zone may not be open to the public until the material has cooled sufficiently to support traffic, without deformation, and prevent tracking.

6. The contractor shall coordinate and acquire the approval form the TPOC for the phasing and sequence of the work. The contractor shall only close one parking lot at a time. Work on the next parking lot shall not commence until the previous parking lot is opened.

7. In cases where work is not specifically shown or specified, contract shall include miscellaneous items, appurtenances, devices, and materials obviously necessary for a sound, secure and complete installation.

8. The contractor shall be responsible for the protection of all existing structures, equipment, and areas from damage during construction. Any items not included in the Statement of Work that are damaged or altered during construction shall be restored to their pre-construction condition at the contractor’s expense and verified as such by the Government TPOC. Any disturbed areas outside of the sites to include the access roads and public roads shall be restored to the minimum of pre-existing conditions.

9. Work shall be performed in a manner that prevents the release of any contaminants to the environment. Prevent any sediment laden runoff from entering waterbodies, drainage inlets, and drainage areas from the pavement. Sediment controls may include, but are not limited to, entrenched staked straw bales, entrenched sediment (silt) fence, or compost filter socks.

Remove all temporary sediment controls during final clean-up and prior to demobilization.

10. The contractor is responsible to manage all storage and staging areas including use of barriers to control public access and ensure safety in the staging areas. All debris generated from the project shall be removed and properly disposed or recycled by the contractor. Contractor shall clean up and properly dispose of debris off-site in accordance with federal, state and local ordinances and regulations. Contractor shall leave the entire site of the work in a neat and orderly condition.

11. Repair work may only be performed when surface and air temperature is at or above 50°F with dry pavement and no rain in the previous 48 hours.

PREPARATION OF CRACKS

12. Prepare all surfaces per manufactures installation instructions. At a minimum, all cracks shall be cleaned to eliminate all vegetation, dirt, dust, moisture, and seeds. If vegetation/debris exists, clean the crack with gas powered heavy-duty 9″ diameter twisted wire wheel brush and HCA Heat Lance. All debris removed from the cracks shall be removed from the pavement surface immediately by means of a power sweeper, hand, or air broom. Cacks less than 1/8” may be prepared with an HCA Heat Lance. Anything greater than 1/8” wide must be wire brush grazed and blown clean with a HCA Heat Lance. Do not burn, scorch, or ignite the pavement when using the hot air lance to dry and clean repair area.

a. Hair Line Cracks (less 1/8”) - Crack shall be cleaned to a minimum depth of 1/8”.

b. Small Cracks (1/8” to 1/2”) - Crack shall be cleaned to a minimum depth of 1/2”.

c. Medium Cracks (1/2” to 1 ½”) - Crack shall be cleaned to a minimum depth of 2”.

d. Large Cracks (greater than 1 ½”) – Crack shall be cleaned to a minimum depth of 2”.

INSTALLATION – MASTIC

13. Only apply mastic to clean, sound, dry surfaces. Asphalt concrete pavement should be heated, with a heat lance, so a slight bleeding effect occurs. This bleeding brings some of the asphalt binder from the pavement to the surface, which will enhance the adhesive bond between the Mastic and road surface. However, caution should be taken to prevent overheating/oxidizing the asphalt brought to the surface as this could be detrimental to adhesion performance. Mastic should be applied within 10 minutes of warming the pavement area. Do not remove material from the melter until initial temperature measurements have been taken. Provide a non-contact infrared thermometer gun to the TPOC to check all temperatures. Melter shall remain onsite throughout job.

14. Contractor shall utilize mastic properly fill wide cracks and defects, including filling and leveling of wide transverse or longitudinal cracks and joints, filling potholes and utility cuts, filling in ponding, localized skin patch repairs and leveling faulted areas.

15. Mastic shall be mixed and heated to installation temperature and shall be poured from the melter and immediately applied to the prepared pavement area. Material shall be applied to the repair areas directly from the melter chute or from buckets filled from the melter. Mastic may be poured from the melter directly into the repair area, poured into an appropriate bucket and then applied, or poured into a material handler and then installed. If bucketed, material cooling during transfer must be minimized. For placing Mastic in wide cracks, shoebox applicators shall be used. The correct shoebox applicator shall be selected and use to level the pavement surface, filling in the depressed “valley” area cause by the large crack, typically 6”-18” wide. After the material has been applied to the repair, a hot iron should be used to work the edges and ensure a watertight seal. A non-contact infrared thermometer shall be used periodically to monitor the temperature of the material as it exits the melter. Material may not be used if it is heated beyond the Safe Heating Temperature or exceeds the recommended pot life.

16. Immediately following application to the pavement surface, Mastic shall be leveled and smoothed. The finished Mastic installation should be applied smooth and level with the pavement surface.

17. When installing over a distressed pavement surface, Mastic should be applied at least 6” beyond the distressed area onto sound pavement surfaces. For deep installations, to limit settling and to produce a level finished surface, Mastic shall be applied in layers with a cooling and solidifying time period between applications.

18. After installation, time must be given for the product to cool before opening the area to traffic. Cooling time will vary depending on the size of the application and ambient temperature. Generally, allow approximately 30 to 60 minutes of cooling for each 1” of material depth. For installations of Mastic deeper than 2.5”, product shall be installed in layers not exceeding 2.5 in thick with cooling to 200°F maximum before applying the next layer. The final layer to the pavement surface level should be ½” to 1” thick. This layering process reduces material shrinkage during product cooling.

19. After installation of mastic provide liquid detackifier solution to minimize traffic down time.

Gently stir detackifier prior to use. Fill Garden-type, hand-held pump-up sprayer with detackifier. Adjust spray tip to a medium fan pattern. Spray detackifier directly on freshly applied mastic while minimizing overspray onto pavement. Do not allow traffic on the repaired areas until the material has cooled sufficiently to support traffic and prevent tracking.

INSTALLATION – CRACK SEALANT

20. The crack sealant shall be thoroughly mixed for a minimum of one hour before application can begin. To ensure a uniform fiber distribution in the sealant, and to limit fluctuations in the application temperature of the blended material, the contractor must have a full melter kettle of sealant mixed, heated to the proper application temperature, and ready for testing at the start of each workday. Minimum application temperature shall be 350°F. Do not remove material from the melter until initial temperature measurements have been taken. Melter shall remain onsite throughout job.

21. Sealant shall be delivered to the pavement cracks through a high-pressure hose line and applicator swivel disc shoe. Sealant shall be squeegeed flush to the adjoining pavement surface, with no lipped-up edges. Diameter of the applicator shoe is not to exceed 3.5 inches.

Once the pavement cracks are sealed, the width of the sealant on the pavement (overbanding) shall be no greater than 3 inches. A non-contact infrared thermometer shall be used periodically to monitor the temperature of the material as it exits the melter. Material may not be used if it is heated beyond the Safe Heating Temperature, exceeds the recommended pot life, or is reheated more than one time.

22. After installation of crack sealant provide liquid detackifier solution to minimize traffic down time. Gently stir detackifier prior to use. Fill Garden-type, hand-held pump-up sprayer with detackifier. Adjust spray tip to a medium fan pattern. Spray detackifier directly on freshly applied crack sealant while minimizing overspray onto pavement.

INSTALLATION – POLYMER MODIFIED PAVEMENT SEALER

23. Contractor shall coordinate with the TPOC and provide the manpower necessary to the close the parking lot the night before work is to begin.

24. Prior to sealcoating the parking lots, the contractor shall measure and record locations of existing pavement markings, for reinstallation.

25. Do not apply on rainy, foggy, or extremely humid days (dewpoint less than 55), or when rain is in the forecast within 24 hours. Do not apply if rain has occurred in the previous 48 hours.

26. Immediately prior to sealing, remove all loose materials, dirt, and debris from the pavement surface by using power blowers, mechanical sweeping equipment, brooms, and power washers as needed. Do not apply sealer over dirt and clay or seal over water saturated surfaces. Acquire TPOC inspection prior to the application of any new materials.

27. Oil Spot Treatment

a. Brush away loose material from the oil spots and clean using a steel broom.

b. Wash thoroughly with detergent and rinse using water. Let dry.

c. Spray all cleaned grease, oil, gasoline, and similar petroleum stains or spots with polymer-based emulsion designed for sealing and priming oil spots or oil spot primer.

28. If the pavement temperature is over 100 °F dampen the pavement with a fine mist of water to facilitate even spreading. Do not allow water to puddle on the surface.

29. Provide one coat of latex primer, to improve adhesions of sealcoat, according to manufacture instructions.

30. Provide two complete Polymer Modified (PM) Sealer coats on all asphalt surfaces.

a. The first coat must be spray applied at a rate of 0.15 gal/sy and left to dry a minimum of 2 hours prior to the second coat being applied. PM sealer must be dry prior to application of second coat.

b. The second coat must be spray applied at a rate of 0.10 gal./sy and left to dry a minimum 24 hours prior to being open to traffic. High humidity or lower temperatures may require significantly longer drying/curing periods.

INSTALLATION – WATERBORNE PAVEMENT MARKINGS

31. Deliver paint materials in original sealed containers that plainly show the designated name, specification number, batch number, color, date of manufacture, manufacturer's directions, and name of manufacturer.

32. Allow new pavement sealant to cure per manufacturer requirements before application of paint marking materials. Thoroughly clean surfaces to be marked before application of the paint. Remove dust, dirt, and other granular surface deposits by sweeping, blowing with compressed air, rinsing with water, or a combination of these methods as required.

33. Apply pavement markings to clean, dry surfaces, and unless otherwise approved, only when the air and pavement surface temperature is at least 50°F and rising; and within the limits recommended by the pavement marking manufacturer. Allow pavement surfaces to dry after water has been used for cleaning or rainfall has occurred prior to striping or marking. Test the pavement surface for moisture before beginning work each day and after cleaning. Do not commence marking until the pavement is sufficiently dry and the pavement condition has been approved by the TPOC.

34. Testing for Moisture: Test the pavement surface for moisture before beginning pavement marking after each period of rainfall, fog, high humidity, or cleaning, or when the ambient temperature has fallen below the dew point. Apply pavement markings to dry pavements only. Do not commence marking until the pavement is sufficiently dry and the pavement condition has been approved by the TPOC.

35. Waterborne Application Equipment

a. Provide and maintain machines, tools, and equipment used in the performance of the work in satisfactory operating condition or remove them from the work site. Provide mobile and maneuverable application equipment to the extent that straight lines can be followed and normal curves can be made in a true arc.

b. Provide application equipment capable of continuous mixing and agitation of the material, with conveying parts which prevent accumulation and clogging between the main material reservoir and the extrusion shoe or spray gun. All parts of the equipment which come into contact with the material must be easily accessible and exposed for cleaning and maintenance. All mixing and conveying parts up to and including the extrusion shoes and spray guns must maintain the material at the required temperature with heat-transfer oil or electrical-element-controlled heat.

c. Provide mobile and maneuverable application equipment constructed to ensure continuous uniformity in the dimensions of the stripe. Provide an applicator with a means for cleanly cutting off stripe ends squarely. Provide equipment capable of applying varying widths of traffic markings.

36. Apply all special markings, handicap, crosswalks, stop bars, legends, arrows, and similar patterns with a portable applicator.

CLOSEOUT

37. All workmanship shall be of the highest quality, and any excess of spilled sealant shall be removed from the pavement by approved methods and discarded. Any workmanship determined to be below the high standards of the particular craft involved will not be accepted and will be corrected and/or replaced as required by the TPOC

38. Disposal: Local regulations regarding hauling and disposal shall apply. Contractor shall dispose of all debris resulting from the construction work. Contractor shall leave the entire site of the work in a neat and orderly condition. Debris, rubbish, non-hazardous waste, and non-usable material resulting from the work under this contract shall be disposed of by the contractor at his expense off Government property. Segregate and maximize recycling of all waste generated. Debris shall be removed and transported in such a manner that prevents damage to local roads and spillage.

39. Closeout Procedures: Contractor shall coordinate with the TPOC for the following at the completion of the project:

a. A final inspection walkthrough of the project to ensure the work is completed in accordance with the Statement of Work.

b. Complete Final Payment Forms and Certifications.

(End of Summary of Changes)