1-21. Final Technical Specifications Rev1 03-16-26.pdf

Lower Gwynedd Township, Wissahickon School District

21. Technical Specifications Rev 1

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TABLE OF CONTENTS

TECHNICAL SPECIFICATIONS

Section 00000 Scope of Work

Section 01210 Preconstruction Meeting

Section 01300 Submittals

Section 01500 Construction Facilities & Temporary Controls

Section 01550 Temporary Controls

Section 01570 Traffic Controls

Section 01600 Material & Equipment

Section 01700 Contract Closeout

Section 01732 Demolition

Section 02110 Site Clearing

Section 02122 Tree Protection and Trimming

Section 02200 Site Earthwork

Section 02211 Rough Grading

Section 02223 Backfilling

Section 02225 Trenching

Section 02231 Aggregate Base Course

Section 02270 Slope Protection and Erosion Control

Section 02450 Grading and Seeding

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Section 02510 Asphalt Concrete Paving

Section 02900 Landscaping

Section 03300 Cast in Place Concrete

Appendices Map of work area

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SECTION 00000

SCOPE OF WORK

PART 1 – GENERAL

1.01 Project Location

This project is located at the intersection of Knight Road and Brookside Avenue, Lower Gwynedd Township. Montgomery County, Pennsylvania.

1.02 Project Description

A. Lower Gwynedd Township and the Wissahickon School District are jointly improving the intersection to add trails, handicapped ramps, cross walks, curb and paving adjustments.

B. The work consists of, but is not limited to:

Erosion and Sediment Controls, Demolition, Milling of paving, New sidewalk, New handicapped ramps, New painted cross walks and signage, New Trail, Landscaping, Fencing, Drawings & Specifications

Knight Road Improvements, Land Concepts & Metz Engineers, dated 8-23-24, last revised 7- 31-25, sheets 1 – 4 of 4, and these Specifications.

1.03 Work Included

A. Erosion and Sediment Controls, Demolition, Milling of paving, New sidewalk, New handicapped ramps, New painted cross walks and signage, New Trail, Landscaping, Fencing,

1.04 Additional Requirements

A. All Base Bid work by the contractor, along with any awarded alternate bid work, must be 100% complete within the contract time limit of Sixty (60) calendar days. The award of alternate bid work does not warrant any extension of the contract time limit. The contract time limit shall begin once a written Notice to Proceed order has been issued to the contractor.

B. The cost of all related incidental work, dust control, erosion control, cleaning shall be included in the various unit prices bid. These activities are not separate pay items.

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C. The contractor is responsible for the construction layout of this project. The contractor shall forward all construction layout survey information to the Engineer for reference including: benchmarks, stationing and elevations.

D. Any grassed areas disturbed during construction shall be top-soiled, fertilized and seeded. No additional payment will be made for restoration of grassed areas, but the cost shall be included in the various items of the proposal.

E. All work shall be performed between the hours of 7:00 AM and 7:00 PM, Monday through Friday. Work will not be performed on weekends or Township Holidays.

F. The Contractor shall make a complete record of existing conditions using a pre construction video or pictures of the project areas. The video and pictures shall be saved to a compact disk (CD) and provided to the Owner prior to beginning any demolition work.

G. All construction shall be in accordance with PennDot Form 408, latest edition H. The contractor shall either provide record of an existing Contractor License or shall obtain a new Contractor License from the Township. The contractor shall be responsible for paying any associated licensing fees.

I. The contractor shall be responsible for performing all measurements for the purpose of assembling a competent bid. Any discrepancies shall be addressed by the contractor and no additional compensation will be made for any discrepancies in dimensions or quantities.

1.05 Work Sequence

A. The Contractor shall sequence work in a manner, which will minimize inconvenience to the residents and businesses along the proposed construction site. This shall include, but not be limited to, the following:

1. All driveways shall be kept open to permit access to residents and businesses.

2. A single lane of traffic shall be maintained on Knight Road at all times during the construction activities. Contractor must adhere to PENNDOT requirements for traffic control while completing work.

3. Work hours shall conform to the specifications.

1.06 Time of Completion

A. Duration of project shall be as identified in the General Conditions.

1.07 Special Requirements

A. The Contractor shall provide, maintain and pay for temporary toilet faculties for the use of all Contractors and their employees.

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B. The Contractor shall clean up a required during and after construction. Remove waste materials from the site and dispose in accordance with PADEP regulations on a regular basis or as directed by the Township.

C. The Contractor will be responsible for the cost of damage to adjacent properties resulting from their operations.

D. Work shall conform to the requirements of PADOT and the Township Code of

Ordinances, whichever is greater.

1.08 Erosion and Sedimentation Control

A. The Contractor shall install erosion and sedimentation controls including filter fabric fence and orange safety fence as needed.

B. The Contractor is responsible to control erosion, which might arise as a result of conditions, which develop during construction operations.

1.09 Contractor Use of Premises

A. Use of existing facilities and utilities during construction period: Repair damage caused by construction operations. Take all precautions necessary to protect existing facilities and utilities during the construction period.

Part 2- Products

2.01 GENERAL REQUIREMENTS

All workmanship, materials shall be in accordance with PennDOT Pub 408, 2016

2.02 MATERIALS

A. Topsoil B. Erosion Controls C. Concrete D. Landscaping E. Crushed stone and Aggregates F. Filter Fabrics G. Stabilization fabrics (if needed) H. Tree Protection fence I. Milling per PennDOT Pub 408, Section 491 J. HMA Asphalt Wearing course per PennDOT Section 408, 10% RAP or less.

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K. Bituminous Tack Coat per PennDOT Publication 408, Section 460 L. Line Painting per PennDOT Publication 408, Section 964

Part 3- Execution

3.01 Installation shall be in accordance with PennDOT Publication 408.

Part 4- Quantity and Payment

4.01 Quantity and payment shall be in accordance with the Final Bid Form.

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SECTION 01000

Summary of Work and Method of Payment

PART 1 – GENERAL

1.01 Requirements Include:

A. Related documents B. Project description C. Work Sequence D. Time of completion E. Special requirements F. Contractor use of premises G. Payment procedures H. Application for payments

1.02 Related Documents

A. Drawings and general provisions of contract, including general conditions and other specification sections, apply to this section.

1.03 Project Description

A. Erosion and Sediment Controls, Demolition, Milling of paving, New sidewalk, New handicapped ramps, New painted cross walks and signage, New Trail, Landscaping, Fencing

B. The Knight Road Improvements consists of work shown on the following drawings, general requirements and specifications:

Drawings

Knight Road Improvements, Land Concepts & Metz Engineers, dated 8-23-24, last revised 7- 31-25, sheets 1 – 4 of 4, and these Specifications.

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Section 01210 – Preconstruction Meeting

Part 1 General

1.01 Requirements Included:

A. Contractor participation in Preconstruction Meeting.

1.02 Preconstruction Meeting

A. Owner will schedule meeting within one week after notice to proceed.

B. Attendance: Owner, Engineer, and Contractor.

C. Agenda:

1. Discuss questions on bonds and insurance certificates (if any).

2. Execution of Owner-Contractor Agreement.

3. Distribution of Contract Documents.

4. Submittal of list of subcontractors and progress schedule.

5. Designation of responsible personnel.

6. Procedures and processing of field decisions, submittals, substitutions, applications for payments, proposal request, change orders, and contract closeout procedures.

7. General Township Requirements.

Part 2 Products Not Used

Part 3 Execution Not Used

END OF SECTION

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Section 01300 – Submittals

A. Procedures

B. Shop Drawings

C. Stake-out activities and grade sheets

D. Product Data

E. Manufacturer’s Instructions

F. Manufacturer’s Certificates

1.02 Related Requirements:

A. Summary of work and method of payment.

B. Materials and Equipment: Contractor’s List of Products.

C. Contract Closeout: Closeout submittals.

1.03 Procedures

A. Deliver submittals to Township or Engineer.

B. Submit initial progress schedules in duplicate within 10 days after date established in notice to proceed. After review by Engineer, revise and resubmit as required.

Submit revised schedules with each reflecting change since previous submittal as requested by Engineer.

C. Coordinate submittals of related items.

D. After Engineer’s review of submittal, revise and resubmit as required, identifying changes made since previous submittal.

E. Distribute copies of reviewed submittal to concerned persons. Instruct recipients to promptly report any inability to comply with provisions.

1.04 Shop Drawings

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A. Submit the number of opaque reproductions which contractor requires, plus two copies, which will be retained by Engineer and Township.

1.05 Stake-out Activities and Grade Sheets

A. Notes and drawings pertinent to stake-out activities for roads and utility locations shall be forwarded to the Engineer for his review at least three (3) working days prior to the actual installation of the road, utilities or facilities. Contractor shall also be responsible for completing the stake-out work in the field to properly install all facilities and utilities at the location and grade shown in the contract drawings.

1.06 Product Data

A. Mark each copy to identify applicable products, models, options, and other data;

supplement manufacturers’ standard data to provide information unique to the work.

B. Submit the number of copies which contractor requires, plus two copies, which will be retained by Engineer and Township.

1.07 Manufacturer’s Instructions

A. When required in individual specification section, submit manufacturer’s printed instructions for delivery, storage, assembly, installation, start-up, adjusting, and finishing, in quantities specified for product data.

1.08 Manufacturer’s Certificates

A. When required by individual specification sections or when requested by the Township, submit manufacturer’s certificate, in duplicate, that products meet or exceed specified requirements.

Part 2 Products

Section 01500 – Construction Facilities and Temporary Controls

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A. Protection of Installed Work

B. Protection, Existing Structures

C. Sanitary Sewer Facilities

D. Cleanup During Construction

E. Removal

A. Summary of work and method of payment

B. Contract closeout: final cleaning

1.03 Barriers

A. Provide as required for owner’s use of site, and to protect existing facilities and adjacent properties from damage from construction operations.

B. Provide signage, barricades, cones, safety tape and safety fence as required by governing authorities for public right-of-way.

1.04 Protection of Installed Work

A. Provide temporary protection for installed products. Control traffic in immediate area to minimize damage.

1.05 Protection, Existing Structures

A. The contractor shall at his expense, sustain in their plates and permanently protect from direct or indirect injury any and all pipelines, buildings, utilities, and other property and in the vicinity of his work, whether over or underground, and he shall assume all costs and expenses for direct or indirect damage which may be occasioned by injury to any of them.

1.06 Sanitary Sewer Facilities

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A. The contractor is responsible for providing sewage facilities, such as a port-a-potty, as necessary for the duration of the project. The cost of this item needs to be incorporated into the overall cost of the project. Location of sewage facilities needs to be approved by the Township.

1.07 Cleaning During Construction

A. Control accumulation of waste materials and rubbish; periodically dispose of off-site.

1.08 Removal

B. Remove temporary materials, equipment, services and construction prior to subtantial completion inspection.

C. Clean and repair damage caused by installation of use of temporary facilities.

Remove underground installations and grade site as directed. Restore existing facilities used during construction to condition to be specified, or to original condition.

Part 2 Products Not Used

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Section 01550 - Temporary Controls

A. Dust Control

B. Erosion and Sediment Control

B. Construction facilities and temporary controls

C. Traffic Regulations

Part 2 Products Not Used

3.01 Dust Control

A. Execute work by methods to minimize raising dust from construction operations.

Provide positive means to prevent air-borne dust from dispersing into atmosphere.

3.02 Erosion and Sediment Control

A. The contractor shall strive to perform his work in an orderly sequence to reduce problems of soil erosion which in turn causes sediment to collect and clog stream channels causing stream flooding and upsetting the biological balance as well as water pollution.

B. Construction activity such as milling and paving shall go forward in a manner as to disturb only one lane at a time. Maximum care shall be taken to protect existing trees and other vegetation over and along the roadway.

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C. Periodically inspect to detect evidence of erosion and sedimentation; promptly apply corrective measures.

D. To stabilize sediment producing erodible areas disturbed areas shall be stabilized by mulch consisting of hay, straw, wood chips and planting of fast-growing grasses.

Mulching and sodding shall be accomplished as specified in the applicable standard as set forth in the “Erosion and Sediment Control Handbook” as published by the Montgomery County Conservation District.

E. Types of water control device are inlet sacks. Install as needed.

F. Sediments carried by runoff water shall be in inlet sacks, if needed. Accumulated sediment shall be disposed of prior to the removal of the temporary barriers.

G. Following the completion to construction activity, all disturbed areas shall be permanently stabilized with perennial vegetation as set forth in the “Erosion and Sediment Control Handbook” as published by the Montgomery County Soil and Water Conservation District.

I. Contractor to follow those approvals in executing the Erosion and Sediment aspect of the contract and plans.

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SECTION - 01570 – Traffic Regulations

A. Construction Parking Control

B. Flagmen

C. Flares and Lights

D. Traffic Signs and Signals

E. Removal

1.02 Related Sections:

A. PADOT 441 – Pennsylvania Department of Transportation Chapter 441 – Access to and Occupancy of Highways

B. PADOT 203 – Pennsylvania Department of Transportation Chapter 203 – Work Zone Traffic Control

C. Summary of work and method of payment

D. Construction facilities and temporary controls

Part 2 Products

2.01 Signs, Signals, and Devices

A. Traffic cones and drums, flares and lights: In accordance with PennDOT Publication 441 and Publication 203; as approved by local jurisdiction.

B. Flagman and Equipment: As required by local jurisdictions and/or PADOT 441 and 203.

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3.01 Construction Parking Control

A. Control vehicular parking to prevent interference with public traffic and parking, access by emergency vehicles, and owner’s operations.

B. Monitor parking of construction personnel’s vehicles. Maintain vehicular access to and through parking areas.

C. Prevent parking on or adjacent to access roads or in non-designated areas.

3.02 Flagmen

A. Provide trained and equipped flagmen to regulate traffic when construction operations or traffic encroach on public traffic lanes.

3.03 Flares and Lights

A. Use flares and lights during hours of low visibility to delineate traffic lanes and to guide traffic.

3.04 Traffic Signs and Signals

A. At approaches to site and on-site, elsewhere as needed to direct construction and affected public traffic.

B. Relocated as work progresses, to maintain effective traffic control.

3.05 Removal

A. Remove equipment and devices when no longer required.

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Section 01600 - Material and Equipment

A. Products

B. Transportation and Handling

C. Storage and Protection

D. Product Options

E. Products List

F. Substitutions

B. Contract closeout: Warranties and bonds

1.03 Products

A. Product include material, equipment, and systems.

B. Comply with specifications and referenced standards as minimum requirements.

C. Components required to be supplied in quantity within a specification section shall be the same and interchangeable.

1.04 Transportation and Handling

A. Transport products by methods to avoid product damage; deliver in undamaged condition in manufacturer’s unopened containers or packaging, dry.

B. Provide equipment and personnel to handle product by methods to prevent soiling or damage.

C. Promptly inspect shipments to assure that products comply with requirements, Knight Road Improvements Page 16 of 93 quantities are correct, and products are undamaged.

1.05 Storage and Protection

A. Store products in accordance with manufacturer’s instructions, with seals and labels intact and legible. Store sensitive products in weather-tight enclosures; maintain within temperature and humidity ranges required by manufacturer’s instructions.

B. For exterior storage of fabricated products, place on sloped supports above ground.

Cover products subject to deterioration with impervious sheet covering; provide ventilation to avoid condensation.

C. Store loose granular materials on solid surfaces in a well-drained area; prevent mixing with foreign matter.

D. Arrange storage to provide access for inspection. Periodically inspect to assure products are undamaged and are maintained under required conditions.

1.06 Product Options

A. Products specified by reference or by description only. Any product meeting those standards.

B. Products specified by naming one or more manufacturers with a provision for substitution: Submit a request for substitution for any manufacturer not specifically named.

C. Products specified by naming several manufacturers: Products of name manufacturers meeting specifications: No options, no substitutions allowed.

D. Products specified by naming only one manufacturer: no options, no substitutions allowed.

1.07 Products List

A. Within 10 days after date established in notice to proceed, submit complete list of major products proposed for use, with name of manufacturer, trade name, and model number of each product.

1.08 Substitutions

A. Only within 10 days after established in notice to proceed will Engineer consider requests from contractor for substitutions. Subsequently, substitutions will be

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B. Document each request with complete data substantiating compliance of proposed substitution with contract documents.

C. Request constitute a representation that contractor:

1. Has investigated proposed product and determined that it meets or exceeds, in all respects, specified products.

2. Will provide the same warranty for substitution as for specified product.

3. Will coordinate installation and make other changes, which may be required for work to be complete in all respects.

4. Waives claims for additional costs, which may subsequently become apparent.

D. Substitutions will not be considered when they are indicated or implied on stop drawing or product data submittal without separate written request, or when acceptance will require substantial revision of contract documents.

E. Engineer will determine acceptability of proposed substitution and will notify contractor or acceptance or rejection in writing within a reasonable time.

F. Only one substitution will be considered for each product. When substitution is not accepted, provide specific product.

1.09 Systems Demonstration

A. Prior to final inspection, demonstrate operation of each system to Engineer and Owner.

B. Instruct owner’s personnel in operation, adjustment, and maintenance of equipment and systems, using the operation and maintenance data as the basis of instruction.

Part 2 Products Not Used

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Section 01700 - Contract Closeout

A. Closeout Procedures

B. Final Cleaning

C. Project Record Documents

D. Warranties and Bonds

B. Construction Facilities and Temporary Control: Cleaning during construction

1.03 Closeout Procedures

A. Comply with procedures stated in general conditions and this bid document.

B. Owner will occupy designated portion of project for the purpose of conduct of business, under provision stated in certificate of substantial completion.

C. When contractor considers work has reached final completion, submit written certification that contract documents have been reviewed, work has been inspected, and that work is complete in accordance with contract documents and ready for Engineer’s inspection.

D. In addition to submittals required by the conditions of the contract, provide submittals required by governing authorities, and submit a final statement of accounting giving total adjusted contract sum, previous payments, and sum remaining due.

E. Engineer will issue a final change order reflecting approved adjustments to contract sum not previously made by change order.

1.04 Final Cleaning

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A. Execute prior to final inspection.

B. Remove waste and surplus material, rubbish and construction facilities from the project and the site.

1.05 Project Record Documents

A. Store documents separate from those used for construction.

B. Keep documents current; do not permanently conceal any work until required information has been recorded.

C. At contract closeout, submit documents with transmittal letter containing date, project title, contractor’s name and address, list of documents, and signature of contractor.

Section 01732 - Demolition

PART 1 GENERAL

3.01. RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and

Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

3.02. SUMMARY

A. Section Includes:

1. Demolition and removal of paving, lawn, place anchors, milling and asphalt removal.

2. Cutting and patching.

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B. Related Requirements:

1. Section 01010 - Summary of Work, for construction sequence.

3.03. DEFINITIONS

A. Remove and Reinstall: Detach items from existing construction, prepare for reuse, and reinstall where indicated.

B. Existing to Remain: Existing items of construction that are not to be permanently removed and that are not otherwise indicated to be removed, removed and salvaged, or removed and reinstalled.

C. Cutting: Removal of in-place construction necessary to permit installation or performance of other work.

D. Patching: Fitting and repair work required to restore construction to original conditions after installation of other work.

3.04. MATERIALS OWNERSHIP

A. Unless otherwise indicated, demolition waste becomes property of Contractor.

3.05. SUBMITTALS

A. Schedule of Selective Demolition Activities: Indicate the following:

1. Detailed sequence of selective demolition and removal work, with starting and ending dates for each activity. Ensure Owner's on-site operations are uninterrupted.

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3.06. QUALITY ASSURANCE

A. Demolition Firm Qualifications: An experienced firm that has specialized in demolition work similar in material and extent to that indicated for this Project.

B. Regulatory Requirements: Comply with governing regulatory notification regulations before beginning selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

C. Standards: Comply with ANSI A10.6 and NFPA 241.

D. Cutting and Patching: Comply with requirements for and limitations on cutting and patching of construction elements:

1. Other Construction Elements: Do not cut and patch other construction elements or components in a manner that could change their load-carrying capacity, that results in reducing their capacity to perform as intended, or that results in increased maintenance or decreased operational life or safety.

2. Visual Elements: Do not cut and patch construction in a manner that results in visual evidence of cutting and patching. Do not cut and patch exposed construction in a manner that would, in Engineer’s opinion, reduce the building’s aesthetic qualities. Remove and replace construction that has been cut and patched in a visually unsatisfactorily manner.

3.07. FIELD CONDITIONS

A. Owner will occupy portions of building immediately adjacent to selective demolition area. Conduct selective demolition so Owner's operations will not be disrupted.

B. Conditions existing at time of inspection for bidding purpose will be maintained by Owner as far as practical.

C. Notify Engineer of discrepancies between existing conditions and Drawings before proceeding with selective demolition.

D. Hazardous Materials: It is not expected that hazardous materials will be encountered in the Work:

1. If suspected hazardous materials are encountered, do not disturb; immediately notify Engineer and Owner. Hazardous materials will be removed by Owner under a separate contract.

E. Storage or sale of removed items or materials on-site is not permitted.

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F. Maintain fire-protection facilities in service during selective demolition operations.

PART 2 PRODUCTS

2.01. PERFORMANCE REQUIREMENTS

A. Regulatory Requirements: Comply with governing EPA notification regulations before beginning selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

B. Standards: Comply with ANSI/ASSE A10.6 and NFPA 241.

2.02. MATERIALS

A. General: Comply with requirements specified in other Sections.

B. In-Place Materials: Use materials for patching identical to in-place materials. For exposed surfaces, use materials that visually match in-place adjacent surfaces to the fullest extent possible:

1. If identical materials are unavailable or cannot be used, use materials that, when installed, will provide a match acceptable to Engineer for the visual and functional performance of in-place materials.

PART 3 EXECUTION

3.01. EXAMINATION

A. Verify that utilities have been disconnected and capped before starting selective demolition operations.

B. Review record documents of existing construction provided by Owner. Owner does not guarantee that existing conditions are same as those indicated in record documents.

C. Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required.

3.02. UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

Section Removed

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3.03. PREPARATION

A. Site Access and Temporary Controls: Conduct selective demolition and debris-removal operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities:

1. Comply with requirements for access and protection specified in Section 01500

- Temporary Facilities.

B. Temporary Facilities: Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain:

1. Provide protection to ensure safe passage of people around selective demolition area and to and from occupied portions of building.

2. Provide temporary weather protection, during interval between selective demolition of existing construction on exterior surfaces and new construction, to prevent water leakage and damage to structure and interior areas.

C. Temporary Shoring: Provide and maintain shoring, bracing, and structural supports as required to preserve stability and prevent movement, settlement, or collapse of construction and finishes to remain, and to prevent unexpected or uncontrolled movement or collapse of construction being demolished:

1. Strengthen or add new supports when required during progress of selective demolition.

3.04. SELECTIVE DEMOLITION, GENERAL

A. General: Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete the Work within limitations of governing regulations and as follows:

1. Dispose of demolished items and materials promptly.

B. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by Owner, items may be removed to a suitable, protected storage location during selective demolition and reinstalled in their original locations after selective demolition operations are complete.

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3.05. SELECTIVE DEMOLITION PROCEDURES FOR SPECIFIC MATERIALS

Section Removed

3.06. CUTTING AND PATCHING

A. Cutting and Patching, General: Employ skilled workers to perform cutting and patching. Proceed with cutting and patching at the earliest feasible time, and complete without delay:

1. Cut in-place construction to provide for installation of other components or performance of other construction, and subsequently patch as required to restore surfaces to their original condition.

B. Existing Warranties: Remove, replace, patch, and repair materials and surfaces cut or damaged during installation or cutting and patching operations, by methods and with materials so as not to void existing warranties.

C. Temporary Support: Provide temporary support of work to be cut.

D. Protection: Protect in-place construction during cutting and patching to prevent damage. Provide protection from adverse weather conditions for portions of Project that might be exposed during cutting and patching operations.

3.07. DISPOSAL OF DEMOLISHED MATERIALS

A. General: Except for items or materials indicated to be recycled, reused, salvaged, reinstalled, or otherwise indicated to remain Owner's property, remove demolished materials from Project site and legally dispose of them in an EPA-approved landfill:

1. Do not allow demolished materials to accumulate on-site.

2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

3. Remove debris from elevated portions of building by chute, hoist, or other device that will convey debris to grade level in a controlled descent.

B. Burning: Do not burn demolished materials.

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C. Disposal: Transport demolished materials off Owner's property and legally dispose of them.

3.08. CLEANING

A. Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations. Return adjacent areas to condition existing before selective demolition operations began.

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Section 02110 – Site Clearing

Part 1 – General

1.01 Summary

1. Protection of existing improvements.

2. Clearing and grubbing.

3. Topsoil stripping.

B. Related Sections:

1. Earthwork - 02200

2. Slope Protection and Erosion Control - 02270

1.02 Project Conditions

A. Coordination: Coordinate site clearing with erosion and sedimentation and surface water control, traffic regulation, selective clearing, and structure moving. All necessary traffic and site temporary controls shall be in place prior to site clearing operations. Coordinate preservation of existing improvements to remain, and the removal and/or relocation of designated trees and shrubs.

B. Traffic: Conduct site clearing operations to ensure minimum interference with roads, streets, walks, and other adjacent occupied or used facilities. Do not close or obstruct streets, walks or other occupied or used facilities without permission from authorities having jurisdiction.

C. Protection of existing Improvements: Provide protections necessary to prevent damage to existing improvements indicated to remain in place. Protect improvements on adjoining properties and on Owner’s property.

D. Restore damaged improvements to their original condition, as acceptable to property owners.

E. Protection of Existing trees and Vegetation: Protect existing trees and other vegetation indicated to remain in place, against unnecessary cutting, breaking or skinning of roots, skinning or bruising of bark, smothering of trees by stockpiling construction materials or excavated materials within drip line, Knight Road Improvements Page 28 of 93 excess foot or vehicular traffic, or parking of vehicles within drip line. Provide temporary guards to protect trees and vegetation to be left standing.

F. Install and maintain temporary fencing located outside the drip line of trees within 50 feet of areas of site disturbed during construction operations, to protect remaining vegetation from construction damage.

G. Water trees and other vegetation to remain within limits of contract work as required maintaining their health during course of construction operations.

H. Provide protection for roots over 1.5-inch in diameter that are cut during construction operations. Coat cut faces with emulsified asphalt or other acceptable coating formulated to use on damaged plant tissues. Temporary cover exposed roots with wet burlap to prevent roots from drying out; cover with earth as soon as possible.

I. Repair or replace trees and vegetation indicated to remain that are damaged by construction operations, in a manner acceptable to the Resident Project Engineer. Employ a licensed arborist to repair damage to trees and shrubs.

J. Replace trees that cannot be repaired and restored to full-growth status, as determined by arborist.

K. Salvable Improvements: Carefully remove items indicated to be salvaged, and store on Owner’s premises where indicated or directed.

1.03 Existing Services

A. General: Indicated locations are approximate; determine exact locations before commencing work.

B. Contact utility locator service (Pennsylvania One Call System) not less than 3 working days before starting work; notify affected utility companies in advance and obtain approval before starting work.

C. Place and maintain markers to indicate location of service. Identify service lines and capping locations on Project Record Documents.

Part 2 – Products (Not Applicable)

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Part 3 General

A. Remove trees, shrubs, grass and other vegetation, improvements, or obstructions as required to permit installation of new construction. Remove similar items elsewhere on site or premises as specifically indicated.

“Removal” includes digging out and off-site disposing of stumps and roots.

B. Cut minor roots and branches of trees indicated to remain in a clean and careful manner, where such roots and branches obstruct installation of new construction.

3.02 Topsoil

A. Topsoil: Fertile agricultural soil, typical for locality, capable of sustaining vigorous plant growth and taken from a drained site; free of subsoil, rocks larger than one (1) inch in diameter, clay, toxic matter, plants, weeds, and roots.

B. Strip topsoil to whatever depths encountered in a manner to prevent intermingling with underlying subsoil or other objectionable material. Remove heavy growths of grass from areas before stripping. Where existing trees are indicted to remain, leave existing topsoil in place with in drip lines to prevent damage to root system.

C. Stockpile topsoil in storage piles in areas indicated or directed. Construct storage piles to provide free drainage of surface water. Cover storage piles, if required, to prevent wind erosion.

D. Topsoil is to be utilized on site by Contractor. Topsoil stockpiling is to be permitted on site as directed by Resident Project Engineer.

E. Install topsoil to a depth of eight (8) inches.

3.03 Clearing and Grubbing

A. Clear site trees, shrubs and other vegetation, except for those indicated to be left standing. Payment for trees to be removed shall be determined by measuring the width of the tree truck at a height of two (2) feet above grade.

B. Completely remove stumps, roots, and other debris protruding through ground surface.

C. Use only hand methods for grubbing inside drip line of trees indicated to remain.

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D. Fill depressions caused by clearing and grubbing operations with satisfactory soil material, unless further excavation or earthwork is indicted. Place fill material in horizontal layers not exceeding 6 inches loose depth, and thoroughly compact to a density equal to adjacent original ground.

E. Clearing shall consist of the felling, trimming and cutting into sections and the satisfactory disposal of such trees and limbs as well as the cutting and satisfactory disposal of bushes, brush and other vegetation. This work shall include the removal and disposal of down timber, rubbish and debris found existing within the areas to be cleared. All materials as stated above shall become the property of the

F. Grubbing shall consist of the removal and disposal of stumps, roots larger than three-inches (3”) in diameter and matted roots from areas to be grubbed. This material, together with other organic matter and other debris, which is not suitable for subgrade or foundation purposes, shall be excavated to a depth of not less than 18 inches below original ground surface.

G. The limits of grubbing shall coincide with the limits of clearing.

H. Removal of Improvements: Remove existing above-grade and below-grade improvements as indicated and as necessary to facilitate new construction.

Contractor is to remove and dispose of improvements removed. No storage of material is permitted on site.

I. Sawcut to produce straight, uniform lines in pavements to remain, where existing pavements are removed.

End of Section

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Section 02122 Tree Protection and Trimming

1.01 Summary

1. Trimming and protection of trees that interfere with or are close to new construction.

B. Extents of trees, which are to remain and must be protected, are indicated on the drawings.

C. Related Section:

1. Site Clearing: 02110

D. Restoration to damage trees

1.02 Project Conditions

A. Temporary Protections: Provide temporary fencing located outside drip-line (outer perimeter of branches) to protect trees and other plants that are to remain from damage.

B. Protect root systems: Do not store construction materials, debris, or excavated material within drip-line of trees to remain. Do not permit vehicles within drip-line.

Restrict foot traffic to prevent excessive compaction of soil over root systems within drip line.

A. Tree Protection Fence: Four (4) feet high wood slat snow fence attached to metal posts or orange safety fence.

3.01 General

A. Before construction is initiated, install temporary fencing. Temporary fencing shall be installed five (5) feet outside the drip line of the designated trees and shall be adjusted in the field if necessary, by direction of the Owner.

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B. Protect tree root systems from damage due to noxious materials caused by run-off or spillage during mixing, placement, or storage of construction materials. Protect root systems from flooding, eroding, or excessive wetting resulting from dewatering operations. Neat cut and seal all root systems of disturbed trees.

C. No open burning of any materials is permitted on Township or owners property.

3.02 Restoration

A. Repair all injuries to bark, trunk, limbs, and roots of remaining plants by properly dressing, cutting, tracing and painting, using approved arboricultural practices and materials.

B. Replace trees, shrubs and plants designated to be saved which are permanently injured or die during the life of the contract as a result of construction operations with like species acceptable to the Township and the School District.

C. Remove protective fences, enclosures, and guards upon the completion of the project.

D. Restore guard posts, guardrail, signs and other interferences to the condition equal to that existing before construction operations.

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Section 02200 – Site Earthwork

1.01 Related Documents

A. Drawings and general provisions of contract.

1.02 Summary

1. Preparing of subgrade for structure, walks, and pavements.

2. Stripping and stockpiling of topsoil.

3. Excavating and backfilling of trenches within project site limits.

4. Final grading, together with the placement of topsoil for lawns and plantings, is specified in Grading and Seeding (02450).

1.03 Definitions

A. Excavation consists of removal of material encountered to subgrade elevations indicated and subsequent disposal of materials removed.

B. Unauthorized excavation consists of removal of materials beyond indicated sub grade elevations or dimensions without specific direction of Owner.

Unauthorized excavation, as well as remedial work directed by owner, shall be at contractor’s expense.

1. Under footings, foundation bases, or retaining walls, fill unauthorized excavation by extending indicated bottom elevation of footing or base to excavation bottom, with out altering required top elevation. Clean cement concrete conforming to Section 302 of Publication 408 – Specifications of the Pennsylvania Department of Transportation may be used to bring elevations to proper position, when acceptable to owner and Resident Project Engineer.

2. In locations other than those above, backfill and compact unauthorized excavations as specified for authorized excavations of same classification, unless otherwise directed by owner.

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C. Additional Excavation: When excavation has reached required subgrade elevations, notify soils engineer, who will make an inspection of conditions. If soils engineer determines that bearing materials at required subgrade elevations are unsuitable, continue excavation until suitable bearing materials are encountered and replace excavated material as directed by soils engineer.

D. Subgrade: The undisturbed earth or the compacted soil layer immediately below granular subbase or base course, drainage fill, or topsoil materials.

E. Structure: Buildings, foundations, slabs, tanks, curbs, pavement or other man made stationary features occurring above or below ground surface.

1.04 Quality Assurance

A. Codes and Standards: Perform excavation work in compliance with applicable requirements of authorities having jurisdiction.

1. The execution of the work of this section and the disposal of material noted hereinafter shall conform to the ecology regulations of the Pennsylvania State Department of Environmental Protection, all local Authorities, and Owner’s standards.

2. American Society for Testing Materials (ASTM)

3. American Association of State Highway and Transportation Officials

(AASHTO).

4. Current Pennsylvania Department of Transportation Publication 408:

Specifications.

5. Federal Register, Department of Labor Occupational Safety and Health

Administration (OSHA) – 29 CFR Part 1926, Occupational Safety and Health Standards Excavations, Final Rule, October 31, 1989 or current revision.

B. The contractor shall give the owner’s representative reasonable notice before beginning his earthwork operations and at least 24 hours notice prior to any excavation, undercutting, and fill work.

C. Testing Agency

1. A Soils Testing Laboratory engaged and paid for by the contractor and approved by the Resident Project Engineer shall perform compaction testing.

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D. Compaction Testing

1. Conduct one test for each 250 linear feet of pipeline and roadway if required by the Resident Project Engineer. Conduct compaction tests at locations as directed by the Resident Project Engineer during backfilling operations.

2. Determine compaction in all roads and shoulders by the testing procedure contained in Pennsylvania Test Method, PTM 106, Method B or PTM 402.

Test areas outside the roadway by the procedures contained in ASTM 1557 or ASTM D2922.

1.05 Project Conditions

A. Existing Utilities: Locate existing underground utilities in areas of excavation work. If utilities are indicated to remain in place, provide adequate means of support and protection during earthwork operations.

1. Should uncharted, or incorrectly charted, piping or other utilities be encountered during excavation, consult utility owner immediately for directions. Cooperate with owner and utility companies in keeping respective services and facilities in operation. Repair damaged utilities to satisfaction of utility owner.

2. Do not interrupt existing utilities serving facilities occupied by owner or others, during occupied hours, except when permitted in writing by owner and then only after acceptable temporary utility services have been provided. Provide minimum of 10 working days notice to owner, and receive written notice to proceed before interrupting any utility.

3. Demolish and completely remove unsalvageable existing underground utilities indicted to be removed. Coordinate with utility companies for shutoff of services if lines are active.

B. Use of Explosives: Use of explosives shall not be permitted.

C. Protection of Persons and Property: Barricade open excavations occurring as part of this work and post with warning lights and protective orange safety fence (48 inches high).

1. Operate warning lights as recommended by authorities having jurisdiction, and by the owner.

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2. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout, and other hazards created by earthwork operations.

3. Perform excavation by hand within dripline of large trees to remain.

Protect root systems from damage or dry out to the greatest extent possible. Maintain moist condition for root system and cover exposed roots with moistened burlap.

4. Maintain safe-working conditions at all times in accordance with

OSHA requirements.

D. Surface Water

1. All surface water encountered on the site shall be accommodated by satisfactory drainage. All surface drainage measures such as ditches, swales or sumps shall be properly maintained through construction.

Where the Contract Documents do not specifically provide for a drainage problem encountered during the progress of work, the method and details for providing for such drainage shall be submitted to the owner for approval prior to beginning this work. Dispose of surface water at an approved discharge.

E. Classification of Excavation

1. All excavation work is UNCLASSIFIED, and includes excavation and removal of all soil, shale, rock, boulders, fill and all other materials encountered of whatever nature.

2.01.1.1 Soil Materials

A. Satisfactory soil materials are defined as those complying with AASHTO M145 soil classification groups A-1, A-2-4, A-2-5, A-3, A-4 and A-5.

B. Structural Fill Materials: Fill materials shall be well graded granular soils free of all debris subject to termite attack, decay, corrosion and all other deleterious materials. Material shall have a maximum particle size no greater than two-thirds the recommended lift thickness, with less than 15 percent fines passing the No. 200 sieve and conforming to AASHTO M145 soil classification groups

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A-1 a and A-3. Fill materials meeting these criteria are not present on-site, and therefore, must be imported.

C. Backfill and Fill Materials: General fill and backfill outside of building limits, unless otherwise specified for utilities, shall consist of satisfactory soil materials free of clay, rock or gravel larger than 2 inches in any dimension, debris, waste, frozen material, vegetation and other deleterious material.

D. Subbase material: Shall be naturally or artificially graded mixture of material of crushed gravel, crushed stone, and natural or crushed sand, conforming to Section 350 – Subbase of the current Publication 408 – Specifications of the Pennsylvania Department of Transportation for PADOT 2A aggregate.

E. Drainage Fill: Washed, evenly graded mixture of crushed stone, or crushed or uncrushed gravel, with 100 percent passing a 1” inch sieve and not more than 5 percent passing a No. 8 sieve. (AASHTO #57)

Part 3 – Execution

3.01 Excavation

A. Earth excavation includes excavation of pavements and other obstructions visible on surface; underground structures, utilities, and other items indicated to be demolished and removed, or moved; together with earth and other materials encountered. The contractor is responsible for removal and disposal of all excavated material.

B. All excavation work is UNCLASSIFIED, and includes excavation and removal of all soil, shale, rock, boulders, fill and all other materials encountered of whatever nature.

3.02 Stability of Excavations

A. General: Comply with OSHA standards and local codes, ordinances, and requirements of agencies having jurisdiction.

B. The contractor shall be responsible for the selection of safe working slope angles in all materials. Contractor shall flatten or protect slopes as required by localized soil and rock conditions. As required, protect exposed soil slopes with plastic sheeting. As required, protect exposed decomposed rock and rock slopes with chain link fencing or similar material. Maintain rock and decomposed rock slopes by periodic cleaning and scaling.

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C. Shoring and Bracing: Shore and brace where sloping is not possible because of space restrictions or stability of material excavated. Shore and brace or underpin as necessary to protect existing structures.