1-Technical Specifications.pdf

TECHNICAL SPECIFICATIONS

SECTIONS

0110 GENERAL REQUIREMENTS

0201 MOBILIZATION/DEMOBILIZATION

0205 MAINTENANCE AND PROTECTION OF TRAFFIC

0405 AGGREGATE

0407 SUPERPAVE ASPHALT MIXTURE, WMA BINDER COURSE

0409 SUPERPAVE ASPHALT MIXTURE, WMA WEARING COURSE

0415 ASPHALT TACK COAT

0430 CURB AND JOINT SEAL

0450 PAVEMENT MILLING

0510 PLAIN CEMENT CONCRETE CURB AND CHEEK WALL

0520 CONCRETE SIDEWALK AND HANDICAP RAMPS

0610 DEMOLITION

0735 EROSION AND SEDIMENTATION CONTROL

0802 TOPSOIL-FURNISHED AND PLACED

0804 FINE GRADING, PERMANENT SEEDING & MULCHING

0902 PAVEMENT MARKINGS

1202 TRAFFIC SIGNAGE

1610 STORM SEWER

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Section 0110 - GENERAL REQUIREMENTS

I. SCOPE OF WORK:

1. This project is to improve pedestrian accessibility along and at Waring Drive and Delaware Avenue in Delaware Water Gap Borough, Monroe County.

The extent of the work performed shall include all materials, labor, and equipment to perform the necessary construction and restoration as shown and described in the contract documents, specifications, and details. The Contractor shall supply all labor, materials, equipment, tools, transportation, and services necessary for the proper execution of the work for which the contractor has submitted a bid. The following are the general items of work required:

A. Project mobilization and demobilization of all necessary construction/project equipment and/or temporary structures.

B. Remove and replace existing concrete sidewalk. Install cheek walls.

C. Remove and replace existing concrete curb.

D. Sawcut and remove existing asphalt surface and extend concrete sidewalk.

E. Remove and replace existing ADA accessible ramps.

F. Install new ADA accessible ramps. Install check wall.

G. Mill and overlay along Waring Drive and Delaware Avenue.

H. Install crosswalk, stop bar, and parking space pavement markings.

I. Furnish and place topsoil, and fine grade, seed and mulch all disturbed areas.

II. STANDARD SPECIFICATIONS

The term “Standard Specifications” refers to the Specifications of the Pennsylvania Department of Transportation, Publication 408, latest version. The Standard Specifications are intended to be of general application and may therefore contain more or less subject matter or topics for any particular contract. The Technical Specifications are in addition to the requirements set forth in the Standard Specifications, and, where conflicts occur, the Technical Specifications shall govern.

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III. CORRELATION AND INTENT OF DOCUMENTS

Contract documents are complementary and that which is called for by one shall be as binding as that which is called for by all. In case of conflict between plans and specifications, specifications shall govern. Intention of documents is to include all labor and materials, equipment and transportation necessary for the proper execution of work.

Materials or work described in words which so applied have a well-known technical or trade meaning shall be held to refer to such recognized standards.

END OF SECTION 0110

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Section 0201- MOBILIZATION/DEMOBILIZATION

I. DESCRIPTION

The intent of this item is to provide for the Contractor’s contingent or incidental expense in setting up field offices, mobilization and demobilization of equipment, setting up plants, providing sanitary facilities, construction of temporary storage sheds, providing temporary staging and laydown area, providing any watchman service required, and providing other services called for in the Technical Specifications or indicated on the Construction Plans and for which no direct payment is allowed. The units stated hereinafter shall be included for payment under this item, but a unit not specifically included herein and required elsewhere in the Construction Plans and Technical Specifications shall not be cause for additional compensation.

II. SCOPE OF WORK

A. Sanitary Facilities - The Contractor shall provide and maintain in a neat and sanitary condition, a temporary convenience or enclosure for the exclusive use of the Contractor’s employees on the construction site. Such Facility shall comply with the State Department of Environmental Protection, County Health Department, and/or federal, state and/or local ordinance as required.

B. Contractor shall be solely responsible for maintaining safe vehicular and pedestrian access and passage, and emergency vehicle access and passage on the site at all times.

C. It is the responsibility of the Contractor to replace and/or restore all materials stored on the site subject to demolition and/or theft and shall provide and pay for such watchman’s service during the construction period as may be required.

III. INCIDENTAL EXPENSES

The Contractor may include the cost of the required bonds and insurance in this item. Separate payment for bonds and insurance will not be allowed.

IV. MEASUREMENT AND PAYMENT

Payment for this item shall be made on the basis provided for below. This price shall be full compensation for the furnishing of all equipment, labor, tools, materials, and incidental or appurtenant items necessary to complete the item.

Payment will be made under:

Item 1 Mobilization/Demobilization Lump Sum

END OF SECTION 0201

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Section 0205- MAINTENANCE AND PROTECTION OF TRAFFIC

This work includes providing temporary traffic control signage and/or flagging.

A. The Contractor shall coordinate road closure and detours with the Borough prior to construction.

B. The Contractor shall provide and remove any and/or all temporary traffic control, directional or informational signs which are within the limits of construction following completion of work.

1. Contractor shall be solely responsible for Maintenance and Protection of Traffic, vehicular and pedestrian access and passage, and emergency vehicle access and passage. Contractor shall maintain safe and adequate vehicular access to all abutting properties at all times.

2. All traffic control signs and devices shall be properly erected and maintained at all times.

III. MEASUREMENT AND PAYMENT

Payment for this item shall be made on the basis provided for below. These prices shall be full compensation for the furnishing of all equipment, labor, tools, materials, and incidental or appurtenant items necessary to complete the item.

Item 2 Maintenance and Protection of Traffic

Lump Sum

END OF SECTION 0205

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Section 0405 – AGGREGATE

This item shall consist of the installation of aggregate for the pavement restoration within the areas of work as shown on the Construction Plans.

II. MATERIAL

The following materials shall be pursuant to the Pennsylvania Department of Transportation’s Publication 408, as last amended.

A. No. 2A Aggregate

III. CONSTRUCTION

The Contractor shall provide all tools, equipment and labor necessary for the completion of this work. All work shall be performed in a safe and workmanlike manner.

Construction methods and materials outlined in the Pennsylvania Department of Transportation Publication 408, as last amended, shall be considered a part of these specifications, and shall be strictly followed.

A. The Contractor shall install a minimum 6-inch deep No. 2A aggregate subbase for the pavement restoration area.

B. Place the stone over the placed geotextile.

1. The stone shall be placed to the full width of the properly prepared and approved subgrade using spreaders and without causing segregation.

In areas inaccessible to spreaders or in special areas, the subbase material may be deposited on the prepared area. Spread to a uniform full depth of the layer being placed.

2. The stone subbase shall be compacted in accordance with Publication

408, as last amended.

Compact from the sides to the center, with each pass uniformly overlapping the previous pass.

If necessary, and to obtain a minimum density of No. 2A aggregate, remix, add water, reconstruct, or replace the subbase.

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Payment of this item shall be made on the basis provided for below. This price shall be full compensation for furnishing all equipment, labor, tools, materials and incidental and appurtenant items necessary to complete the item. Any improvements performed by the Contractor at the wrong elevations or locations shall be replaced in kind by the Contractor at the Contractor’s expense.

Item 10 Pavement Restoration Square Feet

END OF SECTION 0405

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Section 0407 - SUPERPAVE ASPHALT MIXTURE, WMA BINDER COURSE

This work shall consist of the placement of binder course within the limits of work as shown on the Construction Plans.

A. 3-inch Superpave Asphalt Mixture, WMA Binder Course, PG 64S-22, <0.3 million ESALS, 19 mm.

The Contractor shall provide all tools, equipment, and labor necessary for the manner.

All construction methods shall follow the appropriate section(s) of the Pennsylvania Department of Transportation’s Publication 408, as last amended.

The binder course shall be placed to ensure the design grades along the pavement are maintained as shown on the Construction Plans. Construction methods and materials outlined in the Pennsylvania Department of Transportation Publication 408, as last amended, shall be considered a part of these specifications, and shall be strictly followed.

A. Weather limitations. Do not place base course on prepared surfaces that are wet or if the temperature of the air or the prepared surface is 35°F or lower. If work is halted because of weather conditions, the Township or its Engineer may allow the Contractor to place limited quantities of base course that are enroute to the project.

B. Asphalt mixing plant. Obtain asphalt mixtures from a plant fully automated and recordated and currently listed in Bulletin 41, and as specified in Section 413.3.(c) of PennDOT Publication 408.

C. Hauling equipment. Haul the mixtures in tightly sealed vehicles that do not contain petroleum oils, solvents, or other materials that adversely affect asphalt mixture. Provide covers of sufficient size and quality to protect the entire load under all conditions. Maintain the proper and uniform placement temperature as specified in Section 413.3.(h).1 of PennDOT Publication 408.

Provide insulation on all sides of the truck body, a double-walled truck body, or a heated truck body when the air temperature is below 50°F from October 1

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to April 30. Provide a 3/8-inch diameter hole near the center and approximately two-thirds the distance down from the top of the vehicular box, on both sides, to allow for asphalt mixture temperature checks.

D. Paving equipment. The equipment utilized shall be as specified by Section 413.3.(e) of PennDOT Publication 408.

E. Rollers. Use steel-wheel, pneumatic-tire, vibratory, or oscillating rollers as specified in Sections 108.05(c)3a, 3b, 3c, 3e, 3f, 3h, or 4 of PennDOT Publication 408. Operate rollers according to manufacturer's recommendations. Use vibratory and oscillating rollers with separate controls for frequency and amplitude

F. Preparation of existing surface.

1. Conditioning of existing surface. Before delivering asphalt mixtures, remove and dispose of loose and foreign material and excess joint sealer and crack filler from the surface of existing pavement or previously placed pavement courses. If necessary, use a broom.

Before placing a wearing course, correct irregularities in the binder course.

If practical, do not allow traffic on the binder course to prevent contamination.

Remove and replace binder course that cannot be cleaned to the Township or its Engineer’s satisfaction.

Paint existing vertical surfaces of curbs, structures, gutters, and pavements that will be in contact with asphalt mixtures with a uniform coating of either emulsified asphalt, consisting of PennDOT Material Class TACK or NTT/CNTT and applied in two or more applications, or hot asphalt binder of the class and type designated for the asphalt course. Before overlaying existing surfaces and previously placed courses, apply a tack coat as specified in Section 460 unless otherwise indicated.

2. Scratch and leveling courses. Where indicated, place a separate scratch or leveling course ahead of resurfacing operations. Use a scratch course to fill wheel ruts and other local small depressions even with the surrounding pavement. Use a leveling course to provide a relatively uniform working platform for placing binder or wearing courses.

3. Paving notches. Mill the existing pavement surface at tie-in locations as shown on the Construction Plans, or as otherwise indicated. Perform milling with equipment as specified in Section 491.3.(a) of PennDOT Publication 408.

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G. Spreading and finishing.

1. Placing. Unless otherwise allowed or indicated, deliver, place, and compact asphalt paving mixtures during daylight hours. Ensure the mixture does not contain lumps of cold material. Deliver and place mixtures at the laying temperatures specified in Table A (PennDOT Publication 408) for the type and class of material used. Do not incorporate any material delivered outside the temperature limits as specified in Table A (PennDOT Publication 408). Utilize a Material Transfer Vehicle (MTV) as specified in Section 108.05.(c).5 of PennDOT Publication 408 for RPS pavements unless otherwise approved by the Township or its Engineer (See Section 101.01 of PennDOT Publication 408).

2. Spreading and finishing. Spread and strike off the mixture for the entire lane width or as much lane width as practical. Adjust screed assemblies to provide the required cross section and depth. After spreading, do not add mixture to the pavement mat that is segregated, below the minimum temperature, contains either a deficiency or an excess of asphalt content, or is otherwise unsuitable to add to the pavement mat.

If the course is more than 6-inches in compacted depth, construct it in two

(2) or more layers of approximately equal depth, with no layer less than 3-inches or more than 6-inches in compacted depth. For binder or leveling courses that have isolated areas exceeding 6-inch compacted depth, use a scratch or leveling course to eliminate the isolated areas before full-depth paving.

Immediately after placing the asphalt mixture, work the exposed outer edges to eliminate sharp, ragged, and open edges, to eliminate an unfinished appearance, and to reduce edge breakdown. Immediately repair edge breakdowns.

In areas where mechanical spreaders cannot be used, place and screed the mixture with suitable hand tools. Do not use rakes.

Adjacent to flush curbs, gutters, and other abutting structures, place the wearing course mixture uniformly higher so that after compaction the finished surface is slightly above the edge of the abutting structure.

Remove harmful material, clean, and seal the surface of wearing courses adjacent to curbs to form an asphalt gutter. Seal the mixture surface with a hot asphalt material of the class and type listed in Table A (PennDOT Publication 408). Evenly apply the asphalt material a minimum width of 12-inches from the curb. The Contractor may use emulsified asphalt, consisting of PennDOT 413.3(h) 413.3(h) 413 – 13 Change No. 5 Material Class TACK or NTT/CNTT, instead of hot asphalt binder material if allowed by the Township or its Engineer. Control the application rate so

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residual asphalt completely fills surface voids and provides a watertight joint along the curb. If necessary, apply emulsified asphalt in two or more applications. After sealing, remove excess sealant material.

If the indicated compacted depth of a Superpave 25.0 mm asphalt base course is more than 6-inches, place the asphalt base course in two or more layers of approximately equal compacted depth, with no layer less than 3-inches or more than 6-inches.

3. Mixture production, delivery, and placing temperatures when placing over membrane systems as specified in Section 467 or Section 680 of PennDOT Publication 408. If a project includes an item or items of work for membrane systems, as specified in Section 467 or Section 680, produce and place asphalt mixture on top of the membrane at elevated mixture temperatures as per the membrane manufacturer’s recommendation and within the Table A (PennDOT Publication 408) temperature requirements. Ensure proper adhesion between the asphalt pavement overlay and the underlying membrane.

4. Field technician. Provide a certified asphalt field technician, with the qualifications according to Publication 351, to control the placement of asphalt mixtures. Instruct and train the certified asphalt field technician to control the paving operation so that the completed paving work complies with the specified requirements. A certified asphalt field technician must be onsite and carry a valid certification card during placement of all asphalt mixtures.

5. Safety edge. Construct the Safety Edge as the standard edge treatment on the outside edge of asphalt pavements and shoulders. Use the Safety Edge for both wearing and binder courses with a depth of 1.5-inches or greater.

Do not place the Safety Edge at total depths greater than 5-inches. The Safety Edge is not required where curb or sidewalk are encountered or where the face of guiderail is directly over the edge of pavements. Do not place the Safety Edge for base, leveling, or scratch courses.

Construct the Safety Edge with the same material used to construct the roadway course being placed or, if specified, the paved shoulders. Attach a device to the paver to confine material at the end gate and extrude the asphalt material in a wedge shape. Use an adjustable device that allows the operator to vary the slope extruded at the paver to account for the angle becoming steeper during compaction (roll up). Before construction, the Safety Edge device must be approved by the Township or its Engineer (See Section 101.01 of PennDOT Publication 408).

Compact the roadway or paved shoulder as required by the specifications.

Do not delay rolling of the mat adjacent to the Safety Edge. After compaction of the mat is complete, provide a Safety Edge meeting the

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final shape requirements as shown on the Standard Drawings. The completed angle of the Safety Edge must be 26 to 40 degrees measured from the pavement cross slope extended. At the beginning of each days paving, measure the angle of the Safety Edge from the pavement cross slope extended. Perform measurements after final compaction is complete.

If the angle of the Safety Edge does not meet the slope requirements, stop paving and provide corrective action. Do not resume production paving until final shape requirements of Safety Edge are achieved.

Allow automatic transition to intersections, driveways, guiderail sections, and obstructions.

Use the device to constrain the asphalt head, reducing the area and increasing the density of the extruded profile. A single plate strike-off method is not allowed. Do not place the Safety Edge on organic material.

6. Mixture lot acceptance and evaluating pattern segregation. Refer to Sections 413.3.(h)(2) and 413.3.(h)(3) of PennDOT Publication 408.

H. Compaction. Compact the mixture to achieve the density acceptance requirements and to eliminate all roller marks. Compact the mixture while it is in proper condition and adjust roller speed, amplitude, frequency, pattern, and roller size to eliminate displacement, shoving, cracking, and aggregate breakage. Satisfactorily correct displacement resulting from reversing roller directions and other causes.

Without using excess water, maintain wheels of steel-wheel rollers moist and clean to prevent the mixture from adhering to the wheels. Use suitable methods to clean wheels of pneumatic-tire rollers.

Use pneumatic-tire rollers for compacting scratch courses.

For areas inaccessible to rollers, compact with mechanical vibrating hand tampers.

Remove areas that are loose, broken, mixed with dirt, or show an excess or deficiency of asphalt material. Replace removed mixture with fresh hot mixture and compact the mixture even with the surrounding pavement surface.

I. Mat density acceptance. Refer to Section 413.3.(j) of PennDOT Publication 408.

J. Joints.

1. Longitudinal joints. Offset joints in a layer from the joint in the layer immediately below by approximately 6-inches. Plan joint locations to ensure that the joint in the top layer is at the approximate pavement centerline for two-lane roadways and within 12-inches of the lane lines for roadways with more than two lanes. Avoid joint locations directly beneath planned pavement marking applications where possible. Before placing abutting lanes, paint the

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entire area of the joint with a uniform coating of asphalt material, the PG- Binder used in the pavement course or PG 64S-22. Painting of the joint face is not required for scratch courses. Place and compact the mixture at the joint.

Ensure the surface across the joint and along the joint is within the surface tolerances specified in Section 413.3(l) of PennDOT Publication 408.

Seal all longitudinal joint(s) for surface courses with hot PG 64S-22 asphalt binder at no additional cost to the Township. Heat and maintain asphalt binder sealant between 265°F and 320°F. Do not place sealant when the air temperature is below 40°F. Apply the sealant only to joints in pavement surfaces that are clean, dry and free of any loose material and debris. Clean with a power broom as required. Utilize a pressure applicator with a wand or nozzle capable of applying hot asphalt sealant in a straight and consistent width band of 4-inches +/-1-inch and thickness of 1/16-inch +/- 1/32-inch.

Center the sealant band within 1-inch of the joint. Remove and dispose of excess sealant at no additional cost to the Township. Reseal areas of the joint that are inconsistently or not completely covered at no additional cost to the Township. Replace pavement markings that are marred by sealing operations at no additional cost to the Township.

2. Vertical joints. The Contractor may use vertical joints for base, binder, and wearing courses. If traffic or other cause distorts the lane edge, carefully saw a vertical lane edge before painting. Place the abutting lane on the same day, and if necessary, leave only short lane sections, normally less than 25-feet in length, where the abutting lane is not placed the same day.

3. Transverse joints. Construct joints perpendicular to the pavement centerline.

The Contractor may saw transverse joints. If used, install bulkheads straight and perpendicular to the surface. If a bulkhead is not used and the roller moves over the rounded edge of new mixture, locate the joint a sufficient distance from the rounded edge to provide a true surface and cross section.

Paint the joint face with a thin coating of asphalt material, the PG-Binder used in the pavement course or PG 64S-22, before placing fresh mixture against the joint face. Painting of the joint face is not required for scratch courses.

4. Other joints. Where placing a wearing course abutting to existing pavement at locations such as paving notches, lane additions, or utility openings, seal the joint with hot asphalt material of the class and type designated for the wearing course. Evenly apply the sealant a minimum of 6-inches on both sides of the joint. The Contractor may use emulsified asphalt, consisting of PennDOT Material Class TACK or NTT/CNTT, instead of hot asphalt material. Before sealing, clean and remove harmful material from the area to be sealed. Control the application rate so residual asphalt completely fills surface voids and provides a watertight joint. If necessary, use two or more applications of emulsified asphalt. Remove excess asphalt material and immediately cover the sealed area with a light application of dry sand that is acceptable to the Township or its Engineer.

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K. Surface tolerance. Test the finished surface with a 12-foot straightedge at areas the Township or its Engineer determines may be deficient or irregular, and at transverse joints (including bridge decks and pavement transition) and paving notches. Hold the straightedge in contact with the surface and in successive positions parallel to the road centerline to check the entire width of the pavement.

Advance along the pavement in stages of not more than one-half the length of the straightedge until the entire area is tested. The pavement is defective if irregularities are more than 1/4-inch.

L. Tests for depth. Control the loose depth of each layer to construct the base course to the compacted depth indicated and within the specified tolerance. On the top lift and in the presence of the Township or its Engineer, drill full-depth cores at one (1) random location selected by the Township or its Engineer according to PTM No. 1 in each 3,000 square yards of completed base course and at other locations the Township or its Engineer suspects are deficient.

The Township or its Engineer will measure the depth of the full-depth cores according to PTM No. 737. Pavement deficient in depth by ½-inch or more and that cannot be satisfactorily corrected is defective. After the depth measurements are complete, backfill, compact, and seal core holes with the mixture used to construct the course. Immediately start correcting courses or pavement that are deficient in depth at the core location and proceed longitudinally and transversely until the depth is less than ½-inch deficient of the design depth.

M. Protection of courses. Do not allow vehicular traffic or loads on newly compacted courses for 24 hours or until the course uniformly cools to a temperature of 140°F or less. Provide alternate routes as indicated or as directed. If both lanes that form a longitudinal joint are placed on the same day and public safety is not restricted, do not allow vehicular traffic or loads on the lanes until adequate stability and adhesion is obtained and the material has uniformly cooled to 140°F or less.

Maintain the course, as specified in Sections 105.13, 107.15, and 901 of PennDOT Publication 408.

N. Defective work. As specified in Section 105.12 of PennDOT Publication 408 and as follows:

Township acceptance and QA testing shall not relieve the Contractor of responsibility for material or workmanship that the Township or its Engineer determines is defective. Remove and replace or repair defective work as directed.

Remove and replace pavement defective for pattern segregation as specified in Section 413.3.(h)3 of PennDOT Publication 408, for flushing as specified in Section 413.3.(h)4 of PennDOT Publication 408, surface tolerance as specified in Section 413.3.(l) or Section 313.3.(l) of PennDOT Publication 408 and depth as specified in Section 413.3.(m), or Section 313.3.(m) of PennDOT Publication

408. Remove and replace pavement defective for percent as specified in PennDOT Publication 408.

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IV. MEASUREMENT AND PAYMENT:

Payment for this item shall be made on the basis provided for below. This price materials, and incidental and appurtenant items necessary to complete the item.

Any improvements performed by the Contractor at the wrong elevations or locations shall be replaced in kind by the Contractor at the Contractor’s expense.

Item 14 Pavement Restoration

Linear Feet

END OF SECTION 0407

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Section 0409 – SUPERPAVE ASPHALT MIXTURE, WMA WEARING COURSE

This work shall consist of the placement of wearing course within the limits of work as shown on the Construction Plans.

II. MATERIALS

The following materials shall be pursuant to the Pennsylvania Department of Transportation's Publication 408, as last amended.

A. 1 ½” Superpave Asphalt Mixture, WMA Wearing Course, PG 64S-22, <0.3 Million ESALs, 9.5 mm mix, SRL H.

III. CONSTRUCTION METHODS

The Contractor shall provide all tools, equipment, and labor necessary for the manner.

All construction methods shall follow the appropriate section(s) of the Pennsylvania Department of Transportation’s Publication 408, as last amended.

The wearing course shall be placed to ensure the design grades along the pavement are maintained as shown on the Construction Plans. Construction methods and materials outlined in the Pennsylvania Department of Transportation Publication 408, as last amended, shall be considered a part of these specifications, and shall be strictly followed.

A. Weather limitations. Do not place base course on prepared surfaces that are wet or if the temperature of the air or the prepared surface is 35°F or lower. If work is halted because of weather conditions, the Township or its Engineer may allow the Contractor to place limited quantities of base course that are enroute to the project.

B. Asphalt mixing plant. Obtain asphalt mixtures from a plant fully automated and recordated and currently listed in Bulletin 41, and as specified in Section 413.3.(c) of PennDOT Publication 408.

C. Hauling equipment. Haul the mixtures in tightly sealed vehicles that do not contain petroleum oils, solvents, or other materials that adversely affect asphalt mixture. Provide covers of sufficient size and quality to protect the entire load under all conditions. Maintain the proper and uniform placement temperature as specified in Section 413.3.(h).1 of PennDOT Publication 408.

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Provide insulation on all sides of the truck body, a double-walled truck body, or a heated truck body when the air temperature is below 50°F from October 1 to April 30. Provide a 3/8-inch diameter hole near the center and approximately two-thirds the distance down from the top of the vehicular box, on both sides, to allow for asphalt mixture temperature checks.

D. Paving equipment. The equipment utilized shall be as specified by Section 413.3.(e) of PennDOT Publication 408.

E. Rollers. Use steel-wheel, pneumatic-tire, vibratory, or oscillating rollers as specified in Sections 108.05(c)3a, 3b, 3c, 3e, 3f, 3h, or 4 of PennDOT Publication 408. Operate rollers according to manufacturer's recommendations. Use vibratory and oscillating rollers with separate controls for frequency and amplitude

F. Preparation of existing surface.

1. Conditioning of existing surface. Before delivering asphalt mixtures, remove and dispose of loose and foreign material and excess joint sealer and crack filler from the surface of existing pavement or previously placed pavement courses. If necessary, use a broom.

Before placing a wearing course, correct irregularities in the binder course.

If practical, do not allow traffic on the binder course to prevent contamination.

Remove and replace binder course that cannot be cleaned to the Township or its Engineer’s satisfaction.

Paint existing vertical surfaces of curbs, structures, gutters, and pavements that will be in contact with asphalt mixtures with a uniform coating of either emulsified asphalt, consisting of PennDOT Material Class TACK or NTT/CNTT and applied in two or more applications, or hot asphalt binder of the class and type designated for the asphalt course. Before overlaying existing surfaces and previously placed courses, apply a tack coat as specified in Section 460 unless otherwise indicated.

2. Scratch and leveling courses. Where indicated, place a separate scratch or leveling course ahead of resurfacing operations. Use a scratch course to fill wheel ruts and other local small depressions even with the surrounding pavement. Use a leveling course to provide a relatively uniform working platform for placing binder or wearing courses.

3. Paving notches. Mill the existing pavement surface at tie-in locations as shown on the Construction Plans, or as otherwise indicated. Perform milling with equipment as specified in Section 491.3.(a) of PennDOT Publication 408.

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G. Spreading and finishing.

1. Placing. Unless otherwise allowed or indicated, deliver, place, and compact asphalt paving mixtures during daylight hours. Ensure the mixture does not contain lumps of cold material. Deliver and place mixtures at the laying temperatures specified in Table A (PennDOT Publication 408) for the type and class of material used. Do not incorporate any material delivered outside the temperature limits as specified in Table A (PennDOT Publication 408). Utilize a Material Transfer Vehicle (MTV) as specified in Section 108.05.(c).5 of PennDOT Publication 408 for RPS pavements unless otherwise approved by the Township or its Engineer (See Section 101.01 of PennDOT Publication 408).

2. Spreading and finishing. Spread and strike off the mixture for the entire lane width or as much lane width as practical. Adjust screed assemblies to provide the required cross section and depth. After spreading, do not add mixture to the pavement mat that is segregated, below the minimum temperature, contains either a deficiency or an excess of asphalt content, or is otherwise unsuitable to add to the pavement mat.

If the course is more than 6-inches in compacted depth, construct it in two

(2) or more layers of approximately equal depth, with no layer less than 3-inches or more than 6-inches in compacted depth. For binder or leveling courses that have isolated areas exceeding 6-inch compacted depth, use a scratch or leveling course to eliminate the isolated areas before full-depth paving.

Immediately after placing the asphalt mixture, work the exposed outer edges to eliminate sharp, ragged, and open edges, to eliminate an unfinished appearance, and to reduce edge breakdown. Immediately repair edge breakdowns.

In areas where mechanical spreaders cannot be used, place and screed the mixture with suitable hand tools. Do not use rakes.

Adjacent to flush curbs, gutters, and other abutting structures, place the wearing course mixture uniformly higher so that after compaction the finished surface is slightly above the edge of the abutting structure.

Remove harmful material, clean, and seal the surface of wearing courses adjacent to curbs to form an asphalt gutter. Seal the mixture surface with a hot asphalt material of the class and type listed in Table A (PennDOT Publication 408). Evenly apply the asphalt material a minimum width of 12-inches from the curb. The Contractor may use emulsified asphalt, consisting of PennDOT 413.3(h) 413.3(h) 413 – 13 Change No. 5 Material Class TACK or NTT/CNTT, instead of hot asphalt binder material if allowed by the Township or its Engineer. Control the application rate so

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residual asphalt completely fills surface voids and provides a watertight joint along the curb. If necessary, apply emulsified asphalt in two or more applications. After sealing, remove excess sealant material.

H. Compaction. Compact the mixture to achieve the density acceptance requirements and to eliminate all roller marks. Compact the mixture while it is in proper condition and adjust roller speed, amplitude, frequency, pattern, and roller size to eliminate displacement, shoving, cracking, and aggregate breakage. Satisfactorily correct displacement resulting from reversing roller directions and other causes.

Without using excess water, maintain wheels of steel-wheel rollers moist and clean to prevent the mixture from adhering to the wheels. Use suitable methods to clean wheels of pneumatic-tire rollers.

Use pneumatic-tire rollers for compacting scratch courses.

For areas inaccessible to rollers, compact with mechanical vibrating hand tampers.

Remove areas that are loose, broken, mixed with dirt, or show an excess or deficiency of asphalt material. Replace removed mixture with fresh hot mixture and compact the mixture even with the surrounding pavement surface.

I. Mat density acceptance. Refer to Section 413.3.(j) of PennDOT Publication 408.

J. Joints.

1. Longitudinal joints. Offset joints in a layer from the joint in the layer immediately below by approximately 6-inches. Plan joint locations to ensure that the joint in the top layer is at the approximate pavement centerline for two-lane roadways and within 12-inches of the lane lines for roadways with more than two lanes. Avoid joint locations directly beneath planned pavement marking applications where possible. Before placing abutting lanes, paint the entire area of the joint with a uniform coating of asphalt material, the PG- Binder used in the pavement course or PG 64S-22. Painting of the joint face is not required for scratch courses. Place and compact the mixture at the joint.

Ensure the surface across the joint and along the joint is within the surface tolerances specified in Section 413.3(l) of PennDOT Publication 408.

Seal all longitudinal joint(s) for surface courses with hot PG 64S-22 asphalt binder at no additional cost to the Township. Heat and maintain asphalt binder sealant between 265°F and 320°F. Do not place sealant when the air temperature is below 40°F. Apply the sealant only to joints in pavement surfaces that are clean, dry and free of any loose material and debris. Clean with a power broom as required. Utilize a pressure applicator with a wand or nozzle capable of applying hot asphalt sealant in a straight and consistent width band of 4-inches +/-1-inch and thickness of 1/16-inch +/- 1/32-inch.

Center the sealant band within 1-inch of the joint. Remove and dispose of

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excess sealant at no additional cost to the Township. Reseal areas of the joint that are inconsistently or not completely covered at no additional cost to the Township. Replace pavement markings that are marred by sealing operations at no additional cost to the Township.

2. Vertical joints. The Contractor may use vertical joints for base, binder, and wearing courses. If traffic or other cause distorts the lane edge, carefully saw a vertical lane edge before painting. Place the abutting lane on the same day, and if necessary, leave only short lane sections, normally less than 25-feet in length, where the abutting lane is not placed the same day.

3. Transverse joints. Construct joints perpendicular to the pavement centerline.

The Contractor may saw transverse joints. If used, install bulkheads straight and perpendicular to the surface. If a bulkhead is not used and the roller moves over the rounded edge of new mixture, locate the joint a sufficient distance from the rounded edge to provide a true surface and cross section.

Paint the joint face with a thin coating of asphalt material, the PG-Binder used in the pavement course or PG 64S-22, before placing fresh mixture against the joint face. Painting of the joint face is not required for scratch courses.

4. Other joints. Where placing a wearing course abutting to existing pavement at locations such as paving notches, lane additions, or utility openings, seal the joint with hot asphalt material of the class and type designated for the wearing course. Evenly apply the sealant a minimum of 6-inches on both sides of the joint. The Contractor may use emulsified asphalt, consisting of PennDOT Material Class TACK or NTT/CNTT, instead of hot asphalt material. Before sealing, clean and remove harmful material from the area to be sealed. Control the application rate so residual asphalt completely fills surface voids and provides a watertight joint. If necessary, use two or more applications of emulsified asphalt. Remove excess asphalt material and immediately cover the sealed area with a light application of dry sand that is acceptable to the Township or its Engineer.

K. Surface tolerance. Test the finished surface with a 12-foot straightedge at areas the Township or its Engineer determines may be deficient or irregular, and at transverse joints (including bridge decks and pavement transition) and paving notches. Hold the straightedge in contact with the surface and in successive positions parallel to the road centerline to check the entire width of the pavement.

Advance along the pavement in stages of not more than one-half the length of the straightedge until the entire area is tested. The pavement is defective if irregularities are more than 3/16-inch.

L. Tests for depth. Construct the pavement to the depth indicated and within the specified tolerances. For courses with density acceptance by lots, the Township or its Engineer will measure the depth of each sublot according to PTM No. 737 using the density acceptance samples. For courses with a designed course depth and density acceptance by non-movement or optimum rolling pattern, the

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Inspector will calculate the mass per square meter (weight per square yard) for verification of yield. If yield results indicate insufficient course depth, drill one 6-inch diameter core for each 500 tons of material placed to determine the extent of the deficient depth. Core locations will be determined according to PTM No. 1.

For courses with density acceptance by lots, the inspector will measure the depth of each sublot according to PTM No. 737 using density acceptance samples.

Pavement deficient in depth by more than ¼-inch is defective work. Pavement deficient in depth by more than 1/8-inch in three or more adjacent core locations is defective work. The extent of the defective work is the entirety of all sublots represented by the adjacent deficient core samples. After the Inspector completes depth measurements, backfill, compact, and seal core holes with the mixture used to construct the course. Immediately start correcting courses or pavement that are deficient in depth at the core location and proceed longitudinally and transversely until the depth is within 1/4 inch of the design depth

M. Protection of courses. Do not allow vehicular traffic or loads on newly compacted courses for 24 hours or until the course uniformly cools to a temperature of 140°F or less. Provide alternate routes as indicated or as directed. If both lanes that form a longitudinal joint are placed on the same day and public safety is not restricted, do not allow vehicular traffic or loads on the lanes until adequate stability and adhesion is obtained and the material has uniformly cooled to 140°F or less.

Maintain the course, as specified in Sections 105.13, 107.15, and 901 of PennDOT Publication 408.

N. Defective work. As specified in Section 105.12 of PennDOT Publication 408 and as follows:

Township acceptance and QA testing shall not relieve the Contractor of responsibility for material or workmanship that the Township or its Engineer determines is defective. Remove and replace or repair defective work as directed.

Remove and replace pavement defective for pattern segregation as specified in Section 413.3.(h)3 of PennDOT Publication 408, for flushing as specified in Section 413.3.(h)4 of PennDOT Publication 408, surface tolerance as specified in Section 413.3.(l) or Section 313.3.(l) of PennDOT Publication 408 and depth as specified in Section 413.3.(m), or Section 313.3.(m) of PennDOT Publication

408. Remove and replace pavement defective for percent as specified in PennDOT Publication 408.

Payment of this item shall be made on the basis provided for below. This price materials, and incidental or appurtenant items necessary to complete the item.

locations shall be replaced in kind by the Contractor at the Contractor's expense.

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All joint seals will be incidental to the placement of the 1 ½-inch Depth Wearing Course.

Item 15 1 ½-inch Depth Wearing Course

Tons

END OF SECTION 0409

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Section 0415 – ASPHALT TACK COAT

This work shall include the condition and treating of an existing surface with an application of emulsified asphalt bonding material.

Section 460.2 of PennDOT Publication 408.

The Contractor shall provide all tools, equipment and labor necessary for the completion of this work. All work shall be performed in a safe and workmanlike manner.

Construction methods and materials outlined in the Pennsylvania Department of Transportation Publication 408, as last amended, shall be considered a part of these specifications, and shall be strictly followed.

Conform to Section 460.3 of PennDOT Publication 408.

Payment for this item shall be considered incidental to the wearing course line item as described in the given Section. This price shall be full compensation for the furnishing of all equipment, labor, tools, materials, and incidental or appurtenant items necessary to complete the item. Any improvements performed by the Contractor at the wrong elevations or locations shall be replaced in kind by the Contractor at the Contractor's expense.

Item 16 Sweep and Tack Coat Square Yard

END OF SECTION 0415

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Section 0430 – CURB AND JOINT SEAL

1. DESCRIPTION:

This work shall include the cleaning and sealing of longitudinal and transverse joints and cracks in existing and proposed pavement surfaces with an application of asphalt sealing material in accordance with Section 469 of PennDOT Publication 408, latest edition.

2. MATERIAL:

Section 469.2 of PennDOT Publication 408.

Construction methods and materials outlined in the Pennsylvania Department of Transportation Publication 408, as last amended, shall be considered a part of these

Conform to Section 469.3 of PennDOT Publication 408.

4. MEASUREMENT AND PAYMENT:

The payment for Curb and Joint Seal shall be at the contract unit price per linear foot.

This price shall be full compensation for furnishing all equipment, labor, tools, materials, and incidentals necessary to complete the item.

Item 15 1 ½” Depth Wearing Course Tons

END OF SECTION 0430

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Section 0450 – PAVEMENT MILLING

I. DESCRIPTION

This item shall include the milling of existing pavement as shown on the Construction Plans.

II. CONSTRUCTION

The Contractor shall provide all tools, equipment and labor necessary for the completion of this work. All work shall be performed in a safe and workmanlike manner.

Construction methods and materials outlined in the Pennsylvania Department of Transportation Publication 408, as last amended, shall be considered a part of these specifications, and shall be strictly followed.

A. Equipment: Provide a milling machine designed and built for milling existing asphalt pavements with an automatic grade and slope control system and be capable of milling concrete.

B. Milling Operation: Mill to provide a finished surface that is free from gouges, grooves, and ridges and that conforms to the required surface tolerance.

Immediately after milling, remove milled material.

Carefully remove the existing asphalt material around utility facilities within work areas. Repair or replace utility facilities that are damaged by the milling operation to the satisfaction of the utility owner.

Control the rate of milling to avoid tearing of the mat, which causes chunky and non-uniformly milled material. If directed, separate oversized and chunky milled material.

Maintain the milled pavement surface free of all loose materials and dust.

Do not allow traffic to drive on any milled surface for more than six (6) calendar days. Place the first overlaying asphalt course within seven (7) calendar days from the start of the milling operation. Failure to overlay a milled section of roadway within seven (7) calendar days after it has been milled will constitute a failure to comply with a contract traffic control requirement for which work zone liquidated damages will be assessed per Publication 408. Work stoppages caused by the Owner, Utilities, and documented weather delays will not count towards the seven (7) calendar days for calculating Work Zone Liquidated Damages.

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Maintain all milled surfaces and repair or replace any areas damaged due to the asphalt overlay not being placed within seven (7) calendar days of the accepted milling operation methods at no additional cost to the Owner.

If the first course of the asphalt overlay is not placed on the same day of the milling operation, install ROUGH ROAD (W8-8) signs according to PennDOT Publication 212, Publication 213, and MUTCD 1/2-mile in advance of the project and at a minimum of 1/2-mile intervals throughout the project before the end of the day.

Eliminate vertical edges around utilities and inlets within all open travel lanes at the end of each day. If this is not feasible, install a BUMP (W8-1) sign in advance of the appurtenance, and consider a reduced regulatory speed limit sign. Install these signs at no additional cost to Owner.

C. Disposition of Milled Material: The proposal/contract will indicate which one of the following conditions will apply with regard to the disposition of milled material.

a. Milled Material Retained by Contractor: When indicated that milled material is to be retained by the Contractor, satisfactorily dispose of milled material immediately after milling.

b. Milled Material Retained by Owner: When indicated that milled material will be retained by the Owner, deliver milled material to the designated stockpiling location immediately after milling. Advance notification of a scheduled delivery of milled material to the designated stockpile is to be provided to the Owner.

III. MEASUREMENT AND PAYMENT

Payment of this item shall be made on the basis provided for below. This price shall be full compensation for furnishing all equipment, labor, tools, materials and incidental and appurtenant items necessary to complete the item. Any improvements performed by the Contractor at the wrong elevations or locations shall be replaced in kind by the Contractor at the Contractor’s expense.

Item 14

Mill Existing Pavement

Square Yard

END OF SECTION 0450

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Section 0510 - PLAIN CEMENT CONCRETE CURB AND CHEEK WALL

I. DESCRIPTION:

This work shall consist of the construction of plain cement concrete curb and cheek walls as shown on the Constructions Plan.

II. MATERIALS:

A. Class A cement concrete B. Pre-molded expansion joint filler C. Concrete curing compound D. Joint Sealing material

III. CONSTRUCTION METHODS:

As shown on Construction Plan and as specified in the PennDOT Specifications, Publication 408 and Publication 72M, RC-67M.

A. Excavation: Excavate to the required depth then compact the material which the curb is to be constructed to a firm even surface.

B. Forms: Use acceptable metal forms.

C. Joints: Form or saw contraction joints 3/16-inches wide and 2-inches deep. Saw as soon as possible after the concrete has set sufficiently to preclude raveling during the sawing.

D. Removal of Forms: Do not remove forms until it will not be detrimental to the concrete.

E. Backfilling and Embankment: As soon as possible after the removal of forms, backfill the voids in front and back of the curb using acceptable embankment material.

F. Paint: Yellow curb paint shall be placed where existing and where required by the

Borough.

IV. PAYMENT

Payment of this item shall be made on the…