3-WCASD Sarah Starkweather ES - Bid Specifications VOL 2 - 20250926.pdf

Project Manual

Volume 2 – Divisions 02 - 14

Prepared for:

West Chester Area School District 782 Springdale Drive

Exton, PA 19341

Project:

Sarah W. Starkweather Elementary School Additions & Renovations 1050 Wilmington Pike

West Chester, PA 19382

Prepared by:

555 E. North Lane, Suite 5100, Building D

Conshohocken, Pennsylvania 19428

Bid Documents: September 26, 2025

Sarah Starkweather Elementary School – Additions & Renovations

West Chester, PA

SCHRADERGROUP A Hord Coplan Macht Studio TABLE OF CONTENTS Conshohocken, Pennsylvania TOC - Page 1 SGA Project: 225241

TABLE OF CONTENTS

VOLUME 1

DRAWING INDEX

As Listed on Contract Drawings Cover Sheet

DIVISION 00 – BIDDING AND CONTRACT REQUIREMENTS

Section 000015 - SGA Copyright – Design Section 001113 - Advertisement for Bids Section 002113 - Instructions to Bidders Section 002113.01 - Instructions to Bidders (AIA A701-2018) Section 003100 - Available Project Information Section 004100.01 - Bid Form – General Construction Section 004100.02 - Bid Form – Mechanical Section 004100.03 - Bid Form – Plumbing Section 004100.04 - Bid Form – Electrical Section 004100.05 - Bid Form – Roofing Section 004100.06 - Bid Form – Sprinkler Section 004313 - Bid Security Form Section 004513 - Bidder’s Qualifications Section 004519 - Non-Collusion Affidavit Section 005200 - Agreement Form – Standard Form of Agreement Between Owner and Contractor (A101-2017 Stipulated Sum) Section 006113.13 - Performance Bond Form Section 006113.16 - Payment Bond Form Section 007200 - General Conditions – General Conditions for the Contract for

Construction (A201-2017) Section 007346 - PA Wage Rate Determination Schedule

DIVISION 01 – GENERAL REQUIREMENTS

Section 011000 - Summary of Work Section 011200 - Multiple Contract Summary Section 012300 - Alternates Section 012400 - Unit Prices and Quantity Allowances Section 012600 - Contract Modification Procedures Section 012900 - Payment Procedures Section 013100 - Project Coordination Section 013110 - Project Meetings Section 013200 - Construction Progress Schedule Section 013300 - Submittal Procedures Section 013500 - Safety Section 014000 - Quality Requirements Section 014100 - Regulatory Requirements

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Section 014101 - Arrest or Conviction Form Section 014200 - References Section 015000 - Temporary Facilities and Controls Section 015800 - Project Identification and Signs Section 016000 - Product Requirements Section 016300 - Products Substitution Procedures Section 017200 - Field Engineering Section 017300 - Execution Section 017329 - Cutting and Patching Section 017400 - Construction Waste Management and Cleaning Section 017700 - Closeout Procedures Section 017800 - Project Record Documents Section 017810 - Warranties and Bonds Section 017820 - Spare Parts and Maintenance Manuals Section 017900 - Demonstration and Training Section 018130 - Noise Acoustics Section 018300 - Operation and Maintenance Data

VOLUME 2 – DIVISION 2 – 14

DIVISION 2 – SITEWORK

Section 020150 - Protection of Underground Utilities Section 022300 - Site Clearing / Demolition Section 022310 - Tree Protection and Trimming Section 023000A - Subsurface Investigation [WAITING FOR REPORT] Section 024119 - Selective Demolition Section 025220 - Warm Mix Asphalt / Superpave

DIVISION 3 – CONCRETE

Section 033000 - Cast-In-Place Concrete Section 033050 - Cast-In-Place Concrete Slabs Section 033100 - Site Cast-in-Place Concrete Section 033700 - Concrete Curing and Sealing

Section 035416 - Self-Leveling Underlayment

DIVISION 4 – MASONRY

Section 040100 - Maintenance of Masonry Section 042000 - Unit Masonry Section 042113 - Brick Masonry

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DIVISION 5 - METALS

Section 051200 - Structural Steel Section 051250 - Architecturally Exposed Structural Steel Section 052100 - Steel Joists Section 053100 - Steel Deck Section 054000 - Cold-Formed Metal Framing Section 054000.10 - Prefabricated Wall Assemblies Section 055000 - Metal Fabrications Section 055113 - Metal Pan Stairs Section 055213 - Pipe and Tube Railings

DIVISION 6 – WOOD, PLASTICS, COMPOSITES

Section 061053 - Miscellaneous Rough Carpentry Section 061600 - Sheathing Section 064020 - Interior Architectural Woodwork

DIVISION 7 - THERMAL AND MOISTURE PROTECTION

Section 070150.71 - Rehabilitation of Metal Roofing and Gutters Section 070150.73 - Rehabilitation of Modified Bituminous Roofing Section 070543 - Cladding Support System Section 071113 - Bituminous Dampproofing Section 071326 - Self-Adhering Sheet Waterproofing Section 072100 - Thermal Insulation Section 072500 - Vapor Retarders Section 072715 - Non-Bituminous Self Adhering Sheet Air Barriers Section 072726 - Liquid Membrane Vapor Permeable Air Barrier Section 074113.07 - Metal Roof Panels, Snap Seam Section 074213.23 - Metal Composite Material Wall Panels Section 074213.53 - Metal Soffit Panels Section 074264 - Prefabricated Metal Canopy Assemblies Section 074642 - Fiber-Cement Panels Section 075500 - Modified Bituminous Membrane Roofing, Hot-Applied Section 076200 - Sheet Metal Flashing and Trim Section 077100 - Roof Specialties Section 077129 - Manufactured Roof Expansion Joints Section 077200 - Roof Accessories Section 078413 - Penetration Firestopping Section 078446 - Fire Resistive Joint Systems Section 079200 - Joint Sealants Section 079219 - Acoustical Joint Sealants Section 079500 - Expansion Control

Conshohocken, Pennsylvania TOC - Page 4

DIVISION 8 - OPENINGS

Section 081113 - Hollow Metal Doors and Frames Section 081416 - Flush Wood Doors Section 083113 - Access Doors and Frames Section 084113 - Aluminum-Framed Entrances and Storefronts Section 087100 - Door Hardware Section 088000 - Glazing Section 088713 – Window Film Section 088810 - Fire-Rated Glass and Framing

DIVISION 9 - FINISHES

Section 092216 - Non-Structural Metal Framing Section 092900 - Gypsum Board Section 093013 - Ceramic Tiling Section 093300 - Quarry Tile Section 095113 - Acoustical Panel Ceilings Section 096513 - Resilient Base and Accessories Section 096519 - Resilient Flooring Section 096723 – Resinous Flooring Section 096813 - Tile Carpeting Section 097720 - Fiberglass-Reinforced Plastic Panels Section 098433 - Sound Diffusing & Absorbing Wall Units Section 099113 - Exterior Painting Section 099123 - Interior Painting Section 099733 - Concrete Floor Sealer

DIVISION 10 - SPECIALTIES

Section 101100 - Visual Display Units Section 101419 - Dimensional Letter Signage Section 102113 - Toilet Compartments Section 102123 - Cubicle Curtains and Track Section 102226 - Operable Panel Partitions Section 102600 - Wall and Door Protection Section 102226 - Operable Panel Partitions Section 102800 - Toilet and Bath Accessories Section 104413 - Fire Protection Cabinets Section 104416 - Fire Extinguishers

DIVISION 11 – EQUIPMENT

Section 115213 - Projection Screens Section 116623 - Gymnasium Equipment

Conshohocken, Pennsylvania TOC - Page 5

DIVISION 12 - FURNISHINGS

Section 122413 - Roller Window Shades Section 123216 - Manufactured Plastic-Laminate-Faced Casework Section 123623 - Plastic-Laminate-Clad Countertops Section 123661 - Solid Surface Countertops

DIVISION 13 - SPECIAL CONSTRUCTION

N/A

DIVISION 14 - CONVEYING EQUIPMENT

Section 144200 - Wheelchair Lifts

VOLUME 3 – DIVISION 21 – 34

DIVISION 20 – NOT AVAILABLE

DIVISION 21 – FIRE SUPPRESSION

Section 210100 - General Provisions Section 210500 - Common Work Results for Fire Suppression Section 210553 - Identification for Fire Suppression Piping & Equipment Section 211300 - Fire-Suppression Sprinkler Systems

DIVISION 22 - PLUMBING

Section 220100 - General Provisions Section 220501 - Demolition Section 220502 - Excavation, Backfill, & Compaction of Utilities Section 220513 - Common Motor Requirement for Plumbing Equipment Section 220516 - Expansion Fittings and Loops for Plumbing Piping Section 220519 - Meters and Gages for Plumbing Piping Section 220548 - Vibration and Isolation for Plumbing Piping and Equipment Section 220553 - Identification for Plumbing Piping and Equipment Section 220719 - Plumbing Piping Insulation Section 221005 - Plumbing Piping Section 221006 - Plumbing Piping Specialties Section 221116 - Domestic Water Distribution Piping (PEX-A) Section 223000 - Plumbing Equipment Section 223400 - Fuel-Fired Water Heaters Section 224000 - Plumbing Fixtures

DIVISION 23 – HEATING, VENTILATING AND AIR CONDITIONING (HVAC)

Section 230501 - General Requirements Section 230513 - Common Motor Requirements for HVAC Equipment

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Section 230514 - Adjustable Frequency Drives Section 230515 - Removals Section 230516 - Expansion Fittings and Loops for HVAC Piping Section 230519 - Meters and Gages for HVAC Piping Section 230549 - Vibration Isolation Section 230554 - Mechanical Identification Section 230593 - Testing, Adjusting and Balancing Section 230714 - HVAC Duct Insulation Section 230716 - HVAC Equipment Insulation Section 230719 - HVAC Piping Insulation Section 230923 - Automatic Temperature Controls Section 230993 - HVAC Control Sequence Section 232113 - Hydronic Piping Section 232114 - Hydronic Specialties Section 232117 - Pipe Hangers, Supports, and Anchors Section 232123 - Hydronic Pumps Section 232300 - Refrigerant Piping Section 232500 - HVAC Water Treatment Section 233100 - HVAC Ducts and Casings Section 233300 - Air Duct Accessories Section 233423 - HVAC Power Ventilators Section 233600 - Air Terminal Units Section 233700 - Air Outlets and Inlets Section 233750 - Wall Louvers Section 234000 - HVAC Air Cleaning Devices Section 235100 - Breechings Chimneys and Stacks Section 235233.1 - High Efficiency Condensing Boilers Section 235233.2 - High Efficiency Condensing Boilers (Alternate).

Section 237313 - Air Handling Units Section 238101 - Terminal Heat Transfer Units Section 238127 - Small Split System Heating and Cooling Section 238313 - Radiant Heating Cables

DIVISION 25 – INTEGRATED AUTOMATION

DIVISION 26 - ELECTRICAL

Section 260100 - General Requirements Section 260505 - Selective Demolition for Electrical Section 260519 - Low-Voltage Electrical Power Conductors and Cables Section 260526 - Grounding and Bonding for Electrical Systems Section 260529 - Hangers and Supports for Electrical Systems Section 260534 - Conduit Section 260537 - Boxes Section 260553 - Identification for Electrical Systems

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Section 260573 - Power Systems Studies Section 260923 - Lighting Control Devices Section 260924 - Distributed Lighting Controls Section 262200 - Low-Voltage Transformers Section 262413 - Switchboards Section 262416 - Panelboards Section 262717 - Equipment Wiring Section 262726 - Wiring Devices Section 262813 - Fuses Section 262816_13 Enclosed Switches Section 263600 - Transfer Switches Section 264300 - Surge Protection Section 265100 - Interior Lighting Section 265600 - Exterior Lighting

DIVISION 27 – COMMUNICATIONS

Section 271005 - Structured Cabling Section 275134 - Intercom and PA Section 275139 - Cellular Distributed Antenna System Survey Section 275313 - Wireless Clock System

DIVISION 28 – ELECTRONIC SAFETY AND SECURITY

Section 281300 - Access Control System Hardware Section 281400 - Access Control System Software and Database Management Section 283100 - Fire Alarm Emergency Voice Communications System Section 285500 - Emergency Responder Radio Coverage Testing System

DIVISION 31 – EARTHWORK

Section 310500 - Excavation, Backfill, and Compaction of Utilities Section 311100 - Sedimentation and Erosion Control Systems Section 312000 - Earthwork Section 312316.13 - Trenching Section 312319 - Dewatering Section 315000 - Excavation Support and Protection

DIVISION 32 – EXTERIOR IMPROVEMENTS

Section 321216 - Asphalt Paving Section 321726 - Tactile Warning Surfaces Section 321823 - Athletic and Recreation Surfacing Section 323110 - Chain Link Fences and Gates Section 323120 - Ornamental Picket Fence Section 323223 - Segmental Block Retaining Walls Section 323300 - Walk, Road, and Park Appurtenances Section 329200 - Lawns and Grasses Section 329300 - Exterior Plants

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DIVISION 33 – UTILITIES

Section 330500 - Common Work Results for Utilities Section 332200 - Water Mains Section 332210 - Water Main Valves Section 332300 - Testing and Disinfect Water Mains Section 332400 - Fire Hydrants Section 333100 - Sanitary Sewerage Piping Section 333200 - Sanitary Manholes Section 333300 - Gravity Sanitary Sewer System Testing Section 334100 - Storm Drainage System Section 334110 - Rock Energy Dissipater Section 337119 - Electrical Underground Ducts and Manholes [SHA]

DIVISION 34 – TRANSPORTATION

END OF TABLE OF CONTENTS

Sarah Starkweather Elementary School – Additions and Renovations

SCHRADERGROUP A Hord Coplan Macht Studio PROTECTION OF UNDERGROUND UTILITIES Conshohocken, Pennsylvania 020150 - Page 1 SGA Project:225241

SECTION 020150 - PROTECTION OF UNDERGROUND UTILITIES

PART 1- GENERAL

1.1 PROJECT CONDITIONS:

A. In preparation for performing and prior to commencing with the excavation work required by this Project, Contractor shall comply with requirements of Pennsylvania Underground Utility Line Protection law (Act 287 of 1974, as amended by Act 121 of

2008, the "Act") and this specification Section.

B. The existence and location of underground utilities has been shown on the Drawings based on information supplied by the underground utility owners in accordance with the Act. It is expressly understood that neither the Owner nor the Engineer warrants the accuracy of this information; this information is intended to serve as notification that such utilities do exist in the general proximity of the Work. The Contractor shall take the necessary steps to protect, from direct or indirect injury, known existing underground pipes, conduits, utilities, and structures or other property in the vicinity of the Work, or that may be discovered during performance of the Work. The Contractor shall maintain a sufficient quantity of suitable material on-site during the performance of the Work for sustaining or supporting any structure or utility that may be uncovered which may be undermined, weakened, or otherwise compromised, whether or not such structure or utility is indicated on the Drawings.

C. The Contractor shall comply with notification provisions of the Act. Excavation shall begin on or after the third business day after notification to the One-Call System of its intent to dig. In case of complex projects notification shall be not less than ten business days in advance of the beginning of excavation, or demolition work. If the

Contractor removes its equipment and vacates the worksite for more than two business days, he shall re-notify the One Call System, unless other arrangements have been made directly with the utility owner(s) involved. If the location of excavation changes, a new notification shall be made. Damage to existing utilities resulting from the failure of the Contractor to follow the notification requirements of the Act shall be at Contractor's expense and no additional compensation will be provided.

1. Contractor shall cooperate with agents of the utility owners during the progress of the Work.

2. Contractor shall provide the One-Call System with specific information to identify the site of the proposed work. Contractor shall provide any other information requested by One-Call System.

3. Contractor shall obtain serial number from One Call System evidencing compliance with notification requirements of the Act.

4. Contractor shall schedule and conduct a preconstruction meeting with the utility owners. Notice of this meeting shall be provided, in writing, to the Engineer a minimum of seven (7) business days in advance of the meeting. When a utility

Conshohocken, Pennsylvania 020150 - Page 2 SGA Project:225241 owner, with facilities located within the project area, requests a meeting with the

Contractor, the Contractor shall promptly arrange and attend such a meeting.

Contractor shall provide full accounting of any such meetings to the Engineer.

5. If the utility owner fails to respond to the Contractor's request to the One Call

System, or the facility owner notifies Contractor that the utility cannot be marked within the time frame and a mutually agreeable date for marking cannot be arrived at, the Contractor may proceed with excavation as scheduled, but not earlier than the lawful dig date.

6. If the Contractor has reason to believe that the facilities have been overlooked or marked incorrectly, the Contractor shall contact the One Call System and re-notify the utility owner. If, after re-notification, sufficient information to safely excavate is still not provided, Contractor shall be compensated, by the Owner, in accordance with the payment provisions of the Act and of the Contract, for all costs resulting from repairs to, or replacement of damaged, existing underground utilities or structures.

D. Contractor shall establish procedures for emergency action and repairs to utilities accidentally damaged during construction with the utility owners prior to the commencement of work. During the course of the work, if the Contractor accidentally damages an existing utility, the Contractor shall immediately follow the established procedures for emergency action and repairs. The Contractor shall immediately notify 911 and the utility owner if the damage results in the escape of any flammable, toxic, hazardous or corrosive gas or liquid, which endangers life, health, or property.

E. When the Contractor, during the progress of the excavation, shall uncover utility services, pipes, or lines which because of previous (concealed) damage or age are in poor condition, the Contractor shall immediately notify the utility owner in order that steps may be taken for replacement or repair. Locations of repairs, and the procedures of repairs that have been made by Contractor, at the direction of the utility company, shall be recorded by the Contractor. Payment for the work performed shall be made in accordance with the terms mutually agreed to by the

Contractor and the utility owner, prior to commencing with the work.

F. Pipes, conduits, and other underground utilities exposed as a result of the

Contractor's operations shall be adequately supported along their entire exposed length by timber or planking, installed in such a manner that the anchorage of the supporting members will not be disturbed or weakened during the backfilling operations. Backfill of selected material shall be carefully placed and compacted under and around the supports, and all supports shall be left in place as a guard against breakage of the supported facility due to trench settlement.

G. Contractor shall perform exploratory excavations when, in the opinion of the

Engineer, the utility owner, or the project owner, it is necessary to determine, or

Conshohocken, Pennsylvania 020150 - Page 3 SGA Project:225241 confirm the location(s) of existing underground structures and utilities.

1. Dig test pits to determine the location and elevation of existing subsurface utilities, or structure(s) at locations where indicated on the Drawings and other areas as directed by the Engineer. Dig such test pits in the presence of an authorized representative of the utility/structure owner. Contractor may not proceed with excavation work without the prior notification and approval of the owner of the subsurface utility, or structure(s). Dig such test pits only at the locations indicated on the Drawings and in other areas as directed by Engineer

2. Contractor may not proceed with excavation work in locations where new utility lines are to be connected to existing utility lines until test pits have been dug and the exact location and elevation of the existing utility has been determined.

3. Work required for digging test pits will be classified as "Miscellaneous

Unclassified Excavation" and payment will be made in accordance with the unit price indicated on the Bid Form.

4. Test pits of other miscellaneous excavation performed for the Contractor’s convenience will be at the Contractor’s expense.

H. Contractor shall plan the excavation to avoid damage to or minimize interference with underground utilities in the construction area. Excavation that requires temporary or permanent interruption of a utility service shall be coordinated with the affected utility owner.

I. When the Contractor damages a utility during the excavation work and the damage results in personal injury or property damage to parties other than the Contractor or the utility owner, the Contractor shall submit an incident report to the

Pennsylvania Department of Labor and Industry and to any other agency required by the Act, not more than ten (10) business days after the incident. A copy of the incident report shall also be submitted to the Engineer and Owner.

PART 2 -PRODUCTS

NOT APPLICABLE TO THIS SECTION

PART 3- EXECUTION

3.1 PAYMENT FOR ADDITIONAL WORK

A. General: The cost for repair and/or support of existing underground utilities and structures damaged during construction, or found to have been damaged previously (concealed), or in poor condition due to age, will be paid as follows:

1. If the utility/structure was properly and correctly marked, in accordance with the

Act, Contractor shall be responsible for all costs, including support material left

Conshohocken, Pennsylvania 020150 - Page 4 SGA Project:225241 in place.

2. If the utility/structure was not shown, or was marked improperly or incorrectly, and not in accordance with the Act, Contractor will be compensated for the work performed in accordance with the payment provisions of the Contract and further specified below.

B. When information on the location of existing utilities is not provided, the information provided is inaccurate or incorrect, or uncharted or incorrectly charted utilities are encountered, the Contractor shall ascertain the location of the existing utilities by utilizing prudent techniques. The Contractor shall submit written notification to the

Engineer apprising the Engineer of the conditions that have warranted the notification and request for additional compensation. In the event that written notification cannot be immediately provided, the Contractor may provide oral notification to the Engineer followed by written notification no later than three (3) business days thereafter. After submission of written notification, the Contractor will be entitled to additional compensation in accordance with the Act.

1. Except where it has been indicated, in the Contract Documents, that payment will be made as "Miscellaneous Unclassified Excavation," the extra work will be paid on a force account (time and material) basis in accordance with the latest edition of the Pennsylvania Department of Transportation Publication 408, Specifications.

2. When claiming extra work on a force account basis, the Contractor shall complete a Force Account Daily Sign-Off form (PA DOT CS-4347) on a daily basis. The Engineer or an authorized representative of the Owner shall countersign the sign-off form. Failure to complete the sign-off form on a daily basis may constitute grounds to deny additional payment.

3. Contractor shall submit a change order request for the extra force account work. The change order request shall include a Negotiated Price Cost Justification form (PA DOT CS-4347CJ) as well as copies of the daily sign-off forms for the period covered under the change order request. Fees for subcontractors, overhead and profit, and other costs, as may be allowed by the Conditions of the Contract, shall be in accordance with the Conditions of the Contract. The Engineer reserves the right to require additional documentation to substantiate the amounts claimed in the change order request.

4. The change order request will be processed in accordance with the Conditions of the Contract.

END OF SECTION 020150

SCHRADERGROUP A Hord Coplan Macht Studio SITE CLEARING / DEMOLITION Conshohocken Pennsylvania 022300 - Page 1 SGA Project: 225241

SECTION 022300 - SITE CLEARING/DEMOLITION

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

B. Contractor shall strictly adhere to the limits of pavement removal within the limits of each phase as indicated on the construction phasing as approved at the pre-construction meeting. Contractor shall remove existing trees, curb, sidewalk, inlets, piping, paving, subbase, and subgrade materials and any other materials as required to affect the proposed work within the limits of work indicated on the contract drawings.

Contractor shall not remove more paving in one day than he is able to excavate, proof compact to the proposed subgrade elevation, place and compact the subbase material to the required 95% of the ASTM D-1557 modified proctor compaction limit.

Contractor shall be responsible to monitor and keep dust under control to not be a nuisance to the adjoining property owners. Contractor shall notify the Engineer and his inspector, in advance, to be onsite when site clearing pavement removals work is being performed. Contractor shall be solely responsible for locating and bearing the expense of disposal of waste materials at waste disposal areas in accordance with state, local and federal regulations.

C. Contractor shall be responsible for legally disposing of excavated materials in a licensed or government approved area. A letter of acceptance from the owner of the property where materials will be deposited releasing the Borough from all responsibility shall be submitted to the Project Engineer. Excavated material shall be disposed of in an environmentally safe manner.

1.2 SUMMARY

A. This Section includes the following:

1. Protecting existing trees and vegetation to remain,

2. Removing trees and other vegetation,

3. Clearing and grubbing and pavement removal,

4. Topsoil stripping,

5. Removing above-grade site improvements,

6. Disconnecting, capping or sealing, and abandoning site utilities in place,

7. Disconnecting, capping or sealing, and removing site utilities,

8. Saw cutting existing pavement, curb, sidewalk, etc. as required at the limits of the proposed construction, Conshohocken Pennsylvania 022300 - Page 2 SGA Project: 225241

9. Removing unwanted materials from within the limits of construction.

10. All earthwork necessary and required to prepare the site for the installation and construction of all roadway and site improvements as shown on the plans or indicated in the specifications. The contractor shall complete all cuts and fills, furnish, install and compact fill materials; any excavation, backfilling and compaction necessary to provide a suitable roadway subgrade satisfactory to the Engineer; dewatering, completion and maintenance of the site grading from the elevation of the deepest excavation on the site to the finished grades shown on the drawings. Also included is the disposal of unsuitable on-site material, layout and construction of work, stock pike, and temporary storage areas and other work required to grade the roadway and site as shown on the contract plans and as specified in these documents. Hauling and dumping costs for unsuitable material shall be borne by the Contractor.

The Contractor shall be required to provide adequately sized equipment for the excavation, backfilling and grading of on-site materials in order to grade the roadway according to the proposed grading as shown on the plans.

11. Test Pits – shall be performed at existing utility crossings, including, but not limited to, sanitary sewer crossings and water main crossings, to verify depth prior to submitting storm sewer structure shop drawings. Completely backfill or provide steel plates until storm sewer work can be accomplished.

B. Related Sections include the following:

1. Division 1 Section "Field Engineering" for verifying utility locations and for

2. Division 2 Section "Tree Protection and Trimming" for protecting trees remaining on-site that are affected by site operations.

3. Division 2 Section "Earthwork" for soil materials, excavating, backfilling, and site grading.

4. Division 2 Section "Lawns and Grasses" for finish grading, including placing and preparing topsoil for lawns and planting.

1.3 DEFINITIONS

A. Topsoil defined below is the raw material that may need screening and amending before meeting landscaper's definition of topsoil.

B. Topsoil: Natural or cultivated surface-soil layer containing organic matter and sand, silt, and clay particles; friable, pervious, and black or a darker shade of brown, gray, or red than underlying subsoil; reasonably free of subsoil, clay lumps, gravel, and other objects more than 2 inches in diameter; and free of weeds, roots, and other deleterious materials.

C. Demolition: The complete excavation and removal of existing surface and subgrade structures, bituminous or concrete pavements, concrete aprons, driveways, curbs, gutters or sidewalks within the limits shown on the Drawings, or as directed by the Project Engineer, in preparation for new construction.

Conshohocken Pennsylvania 022300 - Page 3 SGA Project: 225241

D. Roadway demolition includes removing existing pavement base courses and all other subsurface materials to subgrade level.

E. Unwanted materials: Those which are not designated to be salvaged and will not become an integral part of the finished work of the Project.

1.4 MATERIALS OWNERSHIP

A. Except for materials indicated to be removed and replaced, including signs, cleared materials shall become Contractor's property and shall be removed from the site.

1.5 SUBMITTALS – Contractor shall prepare:

A. Photographs or videotape, sufficiently detailed, of existing conditions of trees and plantings, adjoining construction, and site improvements that might be misconstrued as damage caused by site clearing.

Record drawings according to Division 1 Section "Contract Close-out."

1. Identify and accurately locate capped utilities and other subsurface structural, electrical, and mechanical conditions.

1.6 QUALITY ASSURANCE

A. Pre-installation Conference: Conduct conference at Project site to comply with requirements in Division 1 Section "Project Meetings."

1.7 PROJECT CONDITIONS

A. Traffic: Minimize interference with adjoining roads, streets, walks, and other adjacent occupied or used facilities during site-clearing operations.

1. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Owner and prior notification of the homeowners. Minimize inconvenience to homeowners and businesses.

2. Provide alternate routes around closed or obstructed traffic ways as required by

Authority having jurisdiction.

B. Improvements on Adjoining Property: Curb and sidewalk work adjacent to existing homeowner’s property shall be replaced near existing grade. No separate easement will be required to perform this work.

C. Salvable Improvements: Carefully remove items indicated to be salvaged and store on Owner's premises where indicated.

Conshohocken Pennsylvania 022300 - Page 4 SGA Project: 225241

D. Notify utility locator service for area where Project is located before site clearing.

E. All residents, along with the Engineer, shall be given a minimum of forty-eight (48) hours notice prior to the intended start of demolition work and again to the residents prior to the start of work in each individual phase.

F. The Contractor shall make himself/herself fully aware of the conditions existing throughout the extent of the work, including but not limited to the types of equipment required to perform the work, and the character, quality, quantity and types of materials which might be encountered.

G. Temporary soil erosion control measures to control water and air pollution, through use of mulch, grass, straw bales, rock inlet protection, filtration dikes, rip rap or silt barrier fencing, shall be in place before any earthwork operation may begin.

H. Maintain area within the limits of construction in as clean a condition possible during progress of demolition work. Limit dust to lowest level practical.

I. Provide and maintain signs, flashing lights, barricades, markers, and other protective devices as required to conform with construction operations and provide for the safety of the general public at no additional cost to the Owner.

J. Take all necessary precautions, including barricades, barrels, flashing lights, etc., to insure against damage to existing work to remain in place, to be reused, or to remain the property of the Owner. Any damage to such work shall be repaired or replaced, whichever is approved, at no additional cost to the Owner.

K. Protect all trees, plants, grass and other landscaping from damage. Replace any trees, plants or other landscaping materials designated to remain that are damaged during the work under this contract.

L. Take all precautions and utilize all facilities required to protect existing utilities and structures. Contractor is to verify utility locations and take appropriate action to avoid damage to them. Immediately report to the Utility and the Project Engineer any break, leak or other damage to the lines or protective coatings made or discovered during the prosecution of the work and immediately alert nearby homeowners of any emergency created or discovered.

M. The Engineer is to be notified immediately if any utilities are disturbed during demolition operations. Any utilities damaged during the excavation process shall be completely repaired in kind to their original condition by the Contractor or the utility itself, at their option. Such repairs must be satisfactory to the Engineer and the utility.

All costs for these repairs will be Contractor’s responsibility.

N. The length of roadway to be excavated during any given day will depend upon the Contractor’s ability to prepare, grade and roll the subgrade and install approved stone and make the road passable. The Contractor will not excavate road base areas beyond that which the Engineer concurs can be temporarily left exposed to the elements and remain stable for receiving proposed stone base course. The

Conshohocken Pennsylvania 022300 - Page 5 SGA Project: 225241 maximum length of roadway excavation permitted in any day shall be limited to five hundred feet (500’) unless otherwise approved by the Engineer.

O. Roadways shall be passable for emergency vehicles at all times. Access for utility personnel shall be maintained at all times to all utilities, including but not limited to, fire hydrants, valve pits covers, valve boxes, curb boxes and other utility controls.

P. Maintain access to all intersecting streets. The closing of driveway accessibility will be limited to a single day while roadway is excavated. Contractor will be required to make ramps for driveway access using 2A stone. This stone shall then be relocated or removed. Street plates may also be used. The cost of such temporary ramps shall be considered as incidental to the Project. No additional payment will be made for these ramps.

Q. No concrete work shall be broken by a dropped-weight device where a possibility of damage to public or private facilities or utilities exists, or where public safety is jeopardized.

R. Any concrete not indicated to be removed, either on the Drawings or at the direction of the Engineer, which becomes chipped, cracked, shifted, undermined or disturbed in any way shall be replaced by the Contractor at his own expense when directed to do so by the Engineer.

S. Burning of materials as a means of disposal of refuse, debris or other unwanted materials shall not be permitted at the project site.

T. The Contractor will not mobilize excavation equipment to the next area scheduled for work until he obtains permission from the Engineer. To proceed to the next area, the Contractor must have adequate crews and equipment to continue with the next required steps of construction at the original location.

U. Contractor shall keep himself informed each day of forecasted inclement weather conditions and will not expose the subgrade when the local forecast warns of unsuitable weather conditions for exposing subsoils.

V. Comply with all State and local code and permit requirements and regulations.

W. Any hauling and dumping fees, or fines, shall be paid by the Contractor.

PART 2 - PRODUCTS

2.1 SOIL MATERIALS

A. Satisfactory Soil Materials: Requirements for satisfactory soil materials are specified in Division 2 Section "Earthwork."

1. Obtain approved borrow soil materials off-site when satisfactory soil materials are not available on-site.

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PART 3 – EXECUTION

3.1 PREPARATION

A. Protect and maintain benchmarks and survey control points from disturbance during construction.

B. Provide erosion-control measures to prevent soil erosion and discharge of soil-bearing water runoff or airborne dust to adjacent properties and walkways.

C. Protect existing site improvements to remain from damage during construction.

1. Restore damaged improvements to their original condition, as acceptable to Owner.

D. Verify the extent of demolition to be performed prior to commencing work.

E. Contractor shall satisfy himself as to the conditions existing throughout the limits of the work, including but not limited to the type of equipment required to perform the work, and the character, quantity, quality and types of materials which may be encountered.

F. Arrange for verification of locations of all utility services within the limits of construction for the Project. Review same for any possible conflicts and schedule test pit verification with the Engineer.

G. Items designated to be salvaged or restored, as approved by the Engineer, will be clearly marked.

H. Remove items indicated to be salvaged for the Owner and place in the designated storage area, at no addition cost to the Owner.

3.2 TREE PROTECTION

A. Erect and maintain a temporary fence around drip line of individual trees or around perimeter drip line of groups of trees to remain (any trees or landscaping not scheduled to be removed). Remove fence when construction is complete.

1. Do not store construction materials, debris, or excavated material within drip line of remaining trees.

2. Do not permit vehicles, equipment, or foot traffic within drip line of remaining trees.

B. Do not excavate within drip line of trees, unless otherwise indicated.

C. Where excavation for new construction is required within drip line of trees to remain, hand clear and excavate to minimize damage to root systems. Use narrow-tine spading forks, comb soil to expose roots, and cleanly cut roots as close to excavation as possible.

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1. Cover exposed roots with burlap and water regularly.

2. Temporarily support and protect roots from damage until they are permanently relocated and covered with soil.

3. Coat cut faces of roots more than 1-1/2 inches in diameter with emulsified asphalt or other approved coating formulated for use on damaged plant tissues.

4. Cover exposed roots with wet burlap to prevent roots from drying out. Backfill with soil as soon as possible.

D. Repair or replace trees and vegetation not indicated to be removed that are damaged by construction operations, in a manner approved by Engineer.

1. Employ a qualified arborist, licensed in jurisdiction where Project is located, to submit details of proposed repairs and to repair damage to trees and shrubs.

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

3.3 UTILITIES

A. Contractor shall arrange for disconnecting and sealing indicated utilities that serve existing structures before site clearing.

1. Verify that utilities have been disconnected and capped before proceeding with site clearing.

B. Locate, identify, disconnect, and seal or cap off utilities indicated to be removed.

1. Arrange to shut off indicated utilities with utility companies.

C. Existing Utilities: Do not interrupt utilities serving facilities occupied by homeowner’s or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated:

1. Notify Engineer not less than two days in advance of proposed utility interruptions.

2. Do not proceed with utility interruptions without Utility companies’ written permission.

3.4 CLEARING AND GRUBBING

A. Remove obstructions as indicated on the contract drawings, train lot materials, existing paving and gravel areas, trees, shrubs, grass, telephone poles, weedy growth at rear of the proposed parking area, and other vegetation to permit installation of new construction. Removal includes digging out stumps and obstructions and grubbing roots.

1. Do not remove trees, shrubs, and other vegetation indicated not indicated to be removed.

2. 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.

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3. Completely remove stumps, roots, obstructions, and debris extending to a depth of 18 inches below exposed subgrade.

4. Use only hand methods for grubbing within drip line of remaining trees.

B. Fill depressions caused by clearing and grubbing operations with satisfactory compacted soil material, unless further excavation or earthwork is indicated.

1. Place fill material in horizontal layers not exceeding 8-inch loose depth and compact each layer to a density equal to adjacent original ground.

3.5 APPLICATION

A. Clean saw cut existing pavement, driveways, aprons, gutters, handicap ramps, etc.

as required to prepare for proper blending of new work with the existing at the limits of the proposed construction.

B. Remove designated existing surface and subgrade structures, bituminous or concrete pavement and base courses, driveways, curb, sidewalk, RCP etc., in order to construct the proposed improvements as indicated on the plans.

C. For any abandoned manholes, the frames and covers shall be removed and returned to the Owner at a designated location. The manhole itself shall be filled with crushed stone to the subgrade level. Any portion of the manhole projecting above this elevation shall be removed and disposed of by the Contractor as part of the excavation.

D. Undercutting or excess excavation to depths below the required subgrade limits as shown on the Drawings, where not directed by the Engineer, shall be replaced at the Contractor’s expense with suitable granular fill material as approved by the Engineer.

Reuse of existing on-site materials will not be allowed.

3.6 DISPOSAL

A. Disposal: Remove surplus soil material, unsuitable topsoil, obstructions, demolished materials, and waste materials, including trash and debris, and legally dispose of them in accordance with state, local and federal regulations off Owner's property.

END OF SECTION 022300

SCHRADERGROUP A Hord Coplan Macht Studio TREE PROTECTION AND TRIMMING Conshohocken, Pennsylvania 022310 - Page 1 SGA Project: 225241

SECTION 022310 - TREE PROTECTION AND TRIMMING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the protection and trimming of trees that interfere with, or are affected by, execution of the Work, whether temporary or new construction.

B. Related Sections include the following:

1. Division 2 Section "Site Clearing / Demolition" for removal limits of trees, shrubs, and other plantings affected by new construction.

2. Division 2 Section "Earthwork" for building and utility trench excavation, backfilling, compacting and grading requirements, and soil materials.

1.3 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Qualification Data: For firms and persons specified in "Quality Assurance" Article to demonstrate their capabilities and experience. Include lists of completed projects with project names and addresses, names and addresses of architects and owners, and other information specified.

C. Certification: From a qualified arborist that trees indicated to remain have been protected during construction according to recognized standards and that trees were promptly and properly treated and repaired when damaged.

D. Maintenance Recommendations: From a qualified arborist for care and protection of trees affected by construction during and after completing the Work.

1.4 QUALITY ASSURANCE

A. Tree Service Qualifications: An experienced tree service firm that has successfully completed tree protection and trimming work similar to that required for this Project and that will assign an experienced, qualified arborist to Project site on a full-time basis during execution of the Work.

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B. Arborist Qualifications: An arborist certified by the International Society of Arboriculture or licensed in the jurisdiction where Project is located.

C. Tree Pruning Standards: Comply with ANSI A300, "Trees, Shrubs, and Other Woody Plant Maintenance--Standard Practices," unless more stringent requirements are indicated.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Drainage Fill: Selected crushed stone, or crushed or uncrushed gravel, washed, ASTM D 448, Size 24, with 90 to 100 percent passing a 2-1/2-inch sieve and not more than 10 percent passing a 3/4-inch sieve.

B. Topsoil: Fertile, friable, surface soil, containing natural loam and complying with ASTM D 5268. Provide topsoil that is free of stones larger than 1 inch in any dimension and free of other extraneous or toxic matter harmful to plant growth.

Obtain topsoil only from well-drained sites where soil occurs in depth of 4 inches or more; do not obtain from bogs or marshes.

C. Filter Fabric: Manufacturer's standard, nonwoven, pervious, geotextile fabric of polypropylene, nylon, or polyester fibers.

D. Chain Link Fence: Temporary snow fencing, 48 inches high, steel post, with tie wires and other accessories for a complete fence system.

PART 3 - EXECUTION

3.1 PREPARATION

A. Temporary Fencing: Install temporary fencing located as indicated or outside the drip line of trees to protect remaining vegetation from construction damage.

B. Protect tree root systems from damage due to noxious materials caused by runoff or spillage while mixing, placing, or storing construction materials. Protect root systems from flooding, eroding, or excessive wetting caused by dewatering operations.

C. Do not store construction materials, debris, or excavated material within the drip line of remaining trees. Do not permit vehicles or foot traffic within the drip line; prevent soil compaction over root systems.

D. Do not allow fires under or adjacent to remaining trees or other plants.

3.2 EXCAVATION

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A. Install shoring or other protective support systems to minimize sloping or benching of excavations.

B. Do not excavate within drip line of trees, unless otherwise indicated.

C. Where excavation for new construction is required within drip line of trees, hand clear and excavate to minimize damage to root systems. Use narrow-tine spading forks and comb soil to expose roots.

1. Relocate roots in backfill areas where possible. If encountering large, main lateral roots, expose roots beyond excavation limits as required to bend and relocate them without breaking. If encountered immediately adjacent to location of new construction and relocation is not practical, cut roots approximately 3 inches back from new construction.

2. Do not allow exposed roots to dry out before placing permanent backfill. Provide temporary earth cover or pack with peat moss and wrap with burlap. Water and maintain in a moist condition. Temporarily support and protect roots from damage until they are permanently relocated and covered with soil.

D. Where utility trenches are required within drip line of trees, tunnel under or around roots by drilling, auger boring, pipe jacking, or digging by hand.

1. Root Pruning: Do not cut main lateral roots or taproots; cut only smaller roots that interfere with installation of utilities. Cut roots with sharp pruning instruments; do not break or chop.

3.3 REGRADING

A. Grade Lowering: Where new finish grade is indicated below existing grade around trees, slope grade beyond drip line of trees. Maintain existing grades within drip line of trees.

B. Retain paragraph and subparagraph below when existing grade is to be lowered within drip line of trees. Maintain existing grades within drip line of trees.

C. Moderate Fill: Where existing grade is more than 6 inches, but less than 12 inches, below elevation of finish grade, place drainage fill, filter fabric, and topsoil on existing grade as follows:

1. Carefully place drainage fill against tree trunk approximately 2 inches above elevation of finish grade and extend not less than 18 inches from tree trunk on all sides. For balance of area within drip-line perimeter, place drainage fill up to 6 inches below elevation of grade.

2. Place filter fabric with edges overlapping 6 inches minimum.

3. Place fill layer of topsoil to finish grade. Do not compact drainage fill or topsoil.

Hand grade to required finish elevations.

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3.4 TREE PRUNING

A. Prune remaining trees affected by temporary and new construction.

B. Prune remaining trees to compensate for root loss caused by damaging or cutting root system. Provide subsequent maintenance during Contract period as recommended by qualified arborist.

C. Pruning Standards: Prune trees according to ANSI A300 as follows:

1. Type of Pruning: Crown cleaning.

2. Type of Pruning: Vista pruning.

3. Type of Pruning: Crown restoration.

D. Cut branches with sharp pruning instruments; do not break or chop.

E. Chip branches removed from trees. Spread chips where indicated or as directed by Architect.

3.5 TREE REPAIR AND REPLACEMENT

A. Promptly repair trees damaged by construction operations within 24 hours.