TECHNICAL SPECIFICATIONS

SECTIONS

0110 GENERAL REQUIREMENTS

0150 PROJECT LAYOUT

0201 MOBILIZATION/DEMOBILIZATION

0202 CLEARING AND GRUBBING

0203 EXCAVATION

0205 MAINTENANCE AND PROTECTION OF TRAFFIC

0211 EARTHWORK

0405 AGGREGATE

0407 SUPERPAVE ASPHALT MIXTURE, WMA BINDER COURSE

0409 SUPERPAVE ASPHALT MIXTURE, WMA WEARING COURSE

0420 ASPHALT TACK COAT

0430 CURB AND JOINT SEAL

0460 BITUMINOUS ROLLED CURB

0520 MOUNTABLE CURB

0530 PLAIN CEMENT CONCRETE APRONS

0610 DEMOLITION

0735 EROSION AND SEDIMENTATION CONTROL

0802 TOPSOIL – FURNISHED AND PLACED

0804 FINE GRADING, PERMANENT SEEDING & MULCHING

0902 PAVEMENT MARKINGS

1110 GUIDERAIL

1202 SIGNAGE

1640 UTILITY GRADE ADJUSTMENT

1650 UTILITY RELOCATION

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Section 0110 - GENERAL REQUIREMENTS

I. SCOPE OF WORK:

1. This project is to construct a roundabout at the intersection of Learn Road and S.R. 0611 in Pocono Township, Monroe County, Pennsylvania.

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. Installation, maintenance, and removal of traffic control signage.

C. Installation, maintenance, and removal of erosion and sedimentation controls as shown on the Construction Plans.

D. Sawcut and remove existing asphalt road surface.

E. Remove existing trees.

F. Remove existing boulders.

G. Rough grade project site.

H. Construct roundabout with concrete truck apron and apron curb, new bituminous rolled curb, and concrete splitter islands with mountable curb.

I. Install storm sewer and inlets.

J. Install new pavement including aggregate subbase, and binder and wearing courses.

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

L. Install landscaping, signage, and pavement markings.

II. STANDARD SPECIFICATIONS

The term “Standard Specifications” refers to the Specifications of the Pennsylvania Department of Transportation, Publication 408, latest version. The Standard Specifications

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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.

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 0150 – PROJECT LAYOUT

I. SCOPE OF WORK:

A. The Contractor is responsible for all horizontal and vertical survey control and layout related to the construction of the project site.

B. The Contractor shall verify the bearing and length between points P1 and P2 to meet information shown on the Contract drawings.

C. Prior to construction of the concrete truck apron, the contractor shall set stakes in the field at the major control points indicated on Sheet 3 of 9, Site Layout Plan for observation by the Township Engineer.

II. MEASUREMENT AND PAYMENT

Payment of this item is incidental to the total project scope. Any improvements performed by the Contractor at the wrong elevations or locations shall be replaced in kind by the Contractor at his/her expense.

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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 0202- CLEARING AND GRUBBING

This work shall include:

A. The removal of topsoil and organic matter such as trees, stumps, brush, roots, and other vegetation within the limits of work. Trees individually selected for removal shall be removed in accordance with Section 810 of PennDOT Publication 408, latest version.

B. Removal of objectionable material, rubbish, and junk within the project limits.

C. Disposal of removed material.

D. Obtaining of waste areas for disposal of material, as specified in Section 105.14 of PennDOT Publication 408, latest version.

E. Stockpiling of topsoil mixture as specified in Section 801 of PennDOT

Publication 408, latest version.

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.

III. MEASUREMENT AND PAYMENT

Payment of this item shall be made on a basis provided for each item 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. 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 7

Clearing and Grubbing Lump Sum

END OF SECTION 0202

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Section 0203 - EXCAVATION

This work will include the sawcut and excavation of the existing pavement as shown on the Construction Plan.

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. Full depth saw cut the existing pavement using a saw blade or cutting wheel to neat lines as indicated on the Construction Plans. Keep the excavation graded to drain, and seal with a smooth-wheeled compaction equipment to prevent the subgrade from becoming saturated. Seal the surface at the end of the workday in order to prevent conditions from deteriorating before continuing work. Temporary drainage structures or channels may be required.

B. Drill and blast rock not removeable by other method, in a manner that completes the excavation as indicated on the Construction Plans, with the least disturbance of adjacent material. Do not blast within 5-feet of any foundation bearing elevation. Complete drilling and blasting and provide information describing pertinent blasting procedures pursuant to the Pennsylvania Department of Transportation’s Publication 408, as last amended.

C. Removal of Existing Pavement

a. Under embankments. Remove existing pavements within 3-feet of the finished grade and scarify the underlying base to a depth of 6-inches, recompact.

b. Outside embankment limits. Remove existing pavements outside the limit of embankments to neat lines. Backfill with suitable material, compacted as specified in Publication 408. If specified, use Type C or better, No. 2A or OGS as specified in Publication 408.

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c. Roadway rehabilitation. For both transverse and longitudinal rehabilitation operations, outline area, cut, and remove existing pavement as indicated.

d. Edge milling of existing pavement to provide for 12-inch overlap of final wearing course shall be considered incidental to Pavement Removal line item.

D. Slopes. Vary the slopes, if directed, depending on the type of material encountered, to obtain satisfactory stability. Remove the material by a method that allows the revised slope lines to be neatly and acceptably trimmed to meet existing conditions.

If a slide occurs, notify the Township and its Engineer immediately, and cease operations in the slide area until directed to continue. Remove slide material and bench or flatten slopes, as directed, to obtain the planned with of the roadway.

E. Ditch and channel slopes. Trim slopes neatly to the lines indicated. Do not remove or excavate any material beyond lines indicated, without written authorization.

F. Cleaning existing ditches excavation. Remove and satisfactorily dispose of all soil and organize matter from within the limits of the existing ditch and side slopes as indicated or directed and as specified in Item E. above.

G. Excavation beyond established slope lines. Do not remove or excavate any material beyond the slope lines without written authorization.

H. Stream channels. Do not excavate in stream channels unless directed otherwise.

I. Topsoil. Stockpile topsoil removed from the excavation or under embankment areas as specified by PennDOT Publication 408. Replace topsoil that is required on the project and wasted during excavation operations at no cost to the Township.

J. Bracing and shoring. Where necessary, brace and shore sides of excavations. Remove bracing and showing when no longer required, unless otherwise directed.

K. Suitable material required for embankment and backfill. Haul suitable excavated material for placement in embankment and for backfill.

Replace suitable material that is required on the project and wasted during excavation operations at no additional cost to the Township.

L. Unsuitable and surplus materials. Dispose of unsuitable and surplus material in suitable waste areas per PennDOT Publication 408.

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M. Stockpile of material. Remove and stockpile excavated material in approved areas.

N. Excavation for utility construction. Excavate trench sufficiently true in alignment to allow the utility facility be laid in the approximate center of the trench. Excavate unsuitable material to width and depth as directed.

O. All excavation work shall be completed in one (1) day and stabilized or satisfactorily covered immediately.

P. Replace any suitable material that is required on the project and wasted at no expense to the Owner.

Q. Dispose of unsuitable and surplus material in suitable waste areas obtained as specified in the Pennsylvania Department of Transportation’s Publication 408, as last amended, and by federal, state, and/or local regulations.

Payment of this item shall be made on the basis of a price as indicated 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. Any improvements performed by the Contractor at the wrong elevations or locations shall be replaced in kind by the Contractor at his/her expense.

Item 14 Rough Grade Square Yard

END OF SECTION 0203

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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 Township 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.

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 0211 - EARTHWORK

This work shall include the cut/fill and construction backfill in accordance with Section 206 of PennDOT Publication 408, latest version.

II. MATERIAL

Sections 206.2 of PennDOT 408 Specifications and as specified on the project drawings.

III. CONSTRUCTION

Construction methods and materials outlined in the Pennsylvania Department of

Payment of this item shall be made on the basis of a price as indicated 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. Any improvements performed by the Contractor at the wrong elevations or locations shall be replaced in kind by the Contractor at his/her expense.

Item 14

Rough Grade Square Yard

END OF SECTION 0211

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Section 0405 – AGGREGATE

This item shall consist of the installation of aggregate for the road as shown on the Construction Plans.

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

A. No. 2A Aggregate 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 No. 2A aggregate stone subbase at depths as indicated on the Construction Plans.

B. Prior to placing the subbase, the subgrade shall be prepared as specified in Section 210 of PennDOT Publication 408. Do not place subbase material on soft, muddy, or frozen areas.

Correct unsatisfactory subbase conditions prior to paving operations when directed. The subbase shall be removed, the subgrade corrected, and the subbase replaced.

C. Mixing. Use acceptable methods to mix materials and water before delivery to the project. Use a blend of materials from different sources only if allowed.

Use material containing enough moisture to prevent segregation during stockpiling, hauling, and placing, and to minimize water added during compaction. Maintain subbase in a well-moistened condition from before placement to compaction.

D. Placement.

1. Prior to placing subbase, construct berms to confine material.

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2. Class 4, Type A geotextile shall be installed as specified in Section 210.3.(b) of PennDOT Publication 408.

3. Place the subbase. Place the material on the subgrade and geotextile by back dumping then spreading the subbase. Spread to a uniform depth of the layer being placed in a manner that will not cause segregation.

4. Do not make abrupt turns with tracked equipment that would result in pulling, folding, or tensioning of the fabric. Do not disturb or damage the geotextile during the installation of the overlying subbase. Repair any damaged geotextile at no additional cost to the Department.

5. Place No. 2A aggregate at the position and depth indicated for the pavement structure. Each layer of No. 2A aggregate shall be placed to a minimum compacted depth of 3-inches

Construct subbase in layers not more than 8-inches in compacted depth;

however, when granulated slag is used, limit each layer to not more than 4-inches in compacted depth. If allowed and when using granulated slag, the Contractor may place a maximum compacted layer of 6-inches when the full layer depth is compacted as specified in Section 206.3.(b) of PennDOT Publication 408.

6. If the subbase is constructed in widths less than the full pavement width, neatly trim the edge of completed subbase before placing the abutting subbase.

7. Compaction and density. Compact to a condition of non-movement as specified in Section 206.3.(b) of PennDOT Publication 408. Compact from the sides to the center, with each pass uniformly overlapping the previous pass.

8. Surface tolerance. See Section 210.3.(c) of PennDOT Publication 408.

9. Test for depth. At each density test location and after completing the density test, carefully dig one test hole to the full depth of the completed subbase. The Township or its Engineer will measure the depth of the finished subbase. If the subbase depth is deficient by ½-inch or more from the depth indicated, the subbase is defective. The Township or its Engineer may require additional test holes to determine the limits of the defective area. Scarify the subbase to a depth of 3-inches, blend in additional material, and recompact. After recompacting, the Township or its Engineer may require test holes to verify the subbase depth is within ½-inch of the indicated depth. Backfill the test holes with subbase material and compact.

10. Maintenance and traffic. If a subbase constructed of No. 2A aggregate is used as a haul road or if a subbase is exposed to weather in excess of 60

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calendar days, retest for surface irregularities and depth and correct deficiencies as specified in Sections 210.3.(c) and 350.3.(g) of PennDOT Publication 408.

Do not leave subbase or subbase covered with treated permeable base course exposed during winter shutdowns.

Place the required asphalt base course over all prepared subbase for flexible pavements, before the shutdown of paving operations for the construction season.

If subbase is in place over winter without a protective layer (asphalt base course for flexible pavements), proof roll as specified in Section 206.3.(a)1 of PennDOT Publication 408 before placement of pavement.

Remove subbase in any areas indicating instability and remove and replace or repair the subgrade. Replace the subbase after repairs are completed on the subgrade. If the majority of or all subbase exhibits instability during the proof rolling, remove subbase and repair subgrade.

Replace subbase in its entirety. Remove subbase, repair subgrade, and replace subbase at no additional cost to the Township.

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 20

8-inch Depth 2A Aggregate Subbase

Square Yard

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. 4-inch Superpave Asphalt Mixture, WMA Binder Course, PG 64-22, 0 to 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 21 4-inch Depth Binder Course

Ton

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

Transportation's Publication 408, as last amended.

A. 1 ½” Superpave Asphalt Mixture, WMA Wearing Course, PG 64-22, 0 to

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.