QRI ARSR Tower Refurb Specifications.pdf

SPECIFICATIONS

QRI ARSR

Tower Refurbishment

Black Mountain

Lynch, Kentucky

FEDERAL AVIATION ADMINISTRATION

SPECIFICATIONS

TABLE OF CONTENTS

Any Reference to Approving Authority, Government, Owner, Operator, Customer, Client, FAA, Engineer, Architect, SA, Resident Engineer (RE), Contracting Officer Representative (COTR) shall be established by the Federal Aviation Administration’s Contracting Officer (CO). The Contacting Officer may appoint other Government personnel to accomplish certain administration matters. Reference the term and conditions PART 1-Section G, CONTRACT ADMINISTRATION DATA, Clause 3.10.1-23, contracting Officer’s Representative-Construction (April 2012)

DEMOLITIO

N AND 02050- 1

SECTION 02050

DEMOLITION AND REMOVALS

PART 1 - GENERAL

Scope:

DEMOLITION AND 02050- 2

PART 2 - PRODUCTS – All products must be lead & asbestos free and approved by the FAA via submittal prior to application/installation.

PART 3 - EXECUTION

General: Demolition and removal work shall be in compliance with approved demolition procedures and applicable requirements of the applicable agencies having jurisdiction.

Protection Of Existing Work: Before beginning any cutting or demolition work, the Contractor shall carefully survey the existing work and examine the drawings and specifications to determine the extent of the work. The Contractor shall take all necessary precautions to ensure against damage to existing work that will remain in place, be reused, or remain the property of the Government, and any damage to such work shall be repaired or replaced so as to be equal to or better than the pre-construction condition as approved by the Contracting Officer at no additional cost to the Government. The Contractor shall carefully coordinate the work of this division with all other work and construct and maintain any necessary protective structures.

Dust Control: Any dust resulting from removal shall be controlled to prevent the spread of dust and to avoid creation of a nuisance in the surrounding area. Existing communications and electronics equipment is acutely sensitive to dust and must be safeguarded. Use of water or other materials shall not be permitted when it will result in, or create, hazardous or objectionable conditions such as ice, flooding or pollution.

Protection Of Buildings From The Weather: The interior of all shelters and other structures shall be protected from the weather at all times. Material and equipment shall be protected from the weather as recommended by the manufacturer.

Burning: Burning at the project sites for the disposal of refuse and debris will not be permitted.

Use of Explosives: The use of explosives and pyrotechnics for demolition is not permitted.

Disposition Of Equipment And Materials:

Title To Materials: All fixtures (installed property) removed during construction shall be designated as either “salvage”, “unsalvageable”, or “rubble” by the COR/RE.

Designation Of Government Salvage, Unsalvageable Property Or Rubble: All fixtures desired

DEMOLITION AND 02050- 3

indicated on the drawings. All remaining materials and equipment not designated as salvage are “Unsalvageable Material” or “Rubble”.

C. Disposition Of Unsalvageable Material: The Contractor shall remove all unsalvageable materials and rubble from the work areas. The unsalvageable materials removed from the work areas shall be disposed of by the Contractor outside of the limits of the site or the leased areas at the Contractor’s responsibility and expense in accordance with all governmental agencies having jurisdiction.

4. Cutting And Patching:

A. Cutting and Drilling: The Contractor shall be held responsible at all times for contents and structural conditions of the premises and building within the work area, and shall do or supervise all cutting, drilling, reinforcing, and patching required for work of all the Contractors and trades included in work of this Contract, and to do so in a timely manner to avoid any hindrance to work of other trades. Cutting done by anyone other than the Contractor shall be approved by the COR/RE. In such cases the Contractor shall supervise such cutting and shall not be relieved of responsibility for error or damage to related or adjoining work. Cutting and patching of specific items may be separately described under the various divisions of these specifications that do not, in any way, diminish the Contractor's primary responsibility for all cutting and drilling.

B. Patching: Any cutting of finished surfaces or damage thereto occurring in the course of the work shall be patched and/or repaired to match the existing work in color, texture, alignment, and every other respect to the satisfaction of the COR/RE. Materials shall be equal to or better than the pre-construction condition.

C. Repair of Masonry Walls: Openings in masonry walls shall be closed with 16 gauge galvanized steel sheet securely attached at the midpoint of the wall thickness and fire stopped on both sides of the steel sheet with not less than 1/2-inch thick layer of non-sagging silicone elastomer to fully cover the opening.

5. Quality Assurance: The Contractor shall establish and maintain quality control for the demolition and removal work to assure compliance with subcontract requirements. Records shall be maintained for all demolition and removal operations but not limited to the following:

A. Procedures: Safety measures, protection of property, coordination of work, and dust control.

B. Salvaging: Removal and preparation of materials for storage.

C. Demolition: Extent of demolition and disposition of materials.

6. Clean-Up: The Contractor shall remove debris and rubbish from the site daily. Do not allow debris to accumulate in building nor on-site. Remove debris and excess materials.

A. Debris Control: The Contractor shall remove and transport debris in a manner as to prevent spillage on streets or adjacent areas. The Contractor shall immediately clean up any spillage or tracking of soil or debris onto pavement outside the work area.

B. Regulations: The Contractor shall comply with all regulations regarding hauling and disposal of removed materials. The legal disposal of removed materials and debris is the Contractor’s responsibility.

END OF SECTION

EXISTING UTILITY 02053- 1

SECTION 02053

EXISTING UTILITY EXPLORATION

PART 1 – GENERAL

1. WORK INCLUDED

A. This section includes all labor, materials and equipment necessary to establish and ensure the exact location and depth of each existing underground facility/utility, including but not limited to existing electrical, communication conduit direct FAA buried cables, fuel & gas lines, water storm and any other existing underground facility .

B. This section shall also include the maintaining of open communication beginning at the planning stage and continuing to the completion of the project. No trenching or excavation work shall be performed by the contractor unless the site has been surveyed and utilities marked by a utility designator firm.

2. DEFINITIONS

A. Excavation – The procedure that includes all activities where the earth is disturbed by mechanical or non-mechanical methods. These methods shall include excavating, trenching, pneumatic/vacuum exploratory extraction (potholing), vertical and horizontal boring, directional drilling and any other ground penetrations and the digging of postholes and the driving of ground rods.

B. High Priority – Any utility that, if damaged, would disrupt the normal airport operations and/or any utility designated “high priority” by its operator/owner.

C. Utility – Any underground facility/utility including telephone, power, water, gas, sewer, storm water, and FAA communications/electronics. Utility owners include the telephone company;

electrical power service; sewer, water and gas utilities; airport operations (lighting and power) and the FAA (power and control)

3. PROCEDURES

The following procedures shall be required for all trenching and digging activities on airport property:

A. The Contractor shall designate the route and/or construction area, to be excavated using white pre-marking paint prior to the arrival of the locators (Utility Designator Firm) and contacts the One- Call System, the Airport Officials, and the local FAA.

B. The Contractor shall ensure that all Airport officials, SSC technicians, and One-Call System utilities performing location services mark the entire path in the construction area. The Contractor shall further ensure that all utility Owner/Operators have located their utilities and that their utilities are properly marked.

C. Contractor shall be aware of the designated color for each utility as indicated by the COR/RE. If a particular marking fades or is destroyed prior to excavation, Contractor shall contact the appropriate utility location service to remark any underground utilities prior to the start of excavation.

D. After completion of the utility locations described above, Contractor shall be required to hire a certified independent utility location service utilizing ground penetration radar to search the entire

EXISTING UTILITY 02053- 2

excavation area to confirm the locations of the marked utilities and to identify any additional unidentified utilities that may be in this area.

E. Contractor shall require that the independent utility location service provide a written report documenting the ground penetration radar search results to the Contractor. Contractor shall provide the COR/RE with a copy of this report prior to any excavation.

F. If an unknown utility is discovered during the locating phase, Contractor shall notify the COR/RE.

The COR will contact the Contrac t ing Off icer to determine if there is an impact on design and to receive direction on how to proceed.

G. Contractor shall maintain a current list of names and phone numbers of the One-Call System and emergency numbers and verify the location of disconnects and shut-off valves.

H. Contractor shall determine facilities that are serviced by identified utilities and notify users of excavation work that will be performed on or near those utilities.

I. If “high priority” facility lines are identified during the utility location phase, then, a representative of the agency responsible for that utility shall be notified by Contractor and requested to be onsite during any excavation within the greater of three feet (3’) or the minimum distance recommended by the utility.

J. Contractor shall accomplish all excavation within the tolerance zone established by the specifications, the responsible utility, and/or ground penetrating radar location service, by hand digging or pneumatic vacuum extraction.

K. If Contractor does not find an underground facility or utility that was previously marked, the excavation shall be stopped and the appropriate owner/operator of the utility shall be contacted directly or through the One-Call System.

L. The Contractor shall notify the COR/RE, the One-Call System, and the Owner/Operator of any underground facility or utility that is discovered as damaged, or has been damaged or contacted during the excavation.

M. The Contractor shall take care to maintain due diligence not to damage existing facilities and utilities during backfill and compaction.

4. SCHEDULE

All explorations, except those allowed by the COR/RE, shall be completed and permission shall be given by the COR/RE to proceed before excavation can begin. The COR/RE shall permit excavation to proceed no later than fourteen (14) calendar days from the date on which all the information from this section of the specification is received.

5. ELEVATION ACCURACY

Information shall be provided to the COR/RE by the Contractor to verify the proposed foundation/trench profiles. The cost of all labor, materials and equipment necessary to remove, repair and/or reconstruct any of the work due to inaccurate information or damage to the existing under ground facility or electrical conduit/cable by the Contractor shall be at the Contractor’s expense.

6. SUBMITTALS

Contractor shall submit five (5) copies of drawings showing all underground utilities which cross each proposed excavation for the COR/RE approval.

EXISTING UTILITY 02053- 3

The Contractor shall submit the name, address and documentation on the Utility Designator Firm’s Capabilities to located underground utilities. Firm shall have a minimum of three years experience locating underground utilities.

PART 2 – PRODUCTS - NOT USED

PART 3 – EXECUTION

1. GENERAL

A. The locations and top elevations of each existing utility shall be established relative to a taxiway, runway or roadway edge along each proposed excavation. This information shall be transmitted to the COR for evaluation of the proposed foundation/trench profile. The demolition or excavation of existing airfield pavement, roadways or pavement of any kind shall not be allowed during this operation. Coordinate with RE for Runway Safety Area and Taxiway Object Free Area restrictions on work under this item.

B. The Contractor shall obtain utility locations from the utility owners. Local FAA will mark its cable locations and provide a minimum of 72 hours advance notice. Contact local One-Call for commercial utility marking and Airport Authority Maintenance for airport lightning and power.

C. Excavation by hand shall be required when excavating within three feet (5’) each side of marked existing utility services. Trenches running parallel to an existing utility shall be separated by ten feet (10’).

D. Contractor shall be responsible for prompt restoration of service to any facility impacted by construction operations. Contractor shall immediately repair any damage done to utilities or cables within the work area. A certified splicer shall be on site continuously to splice cables that have been damaged. FAA cables shall be repaired to the standards described in FAA Specification, FAA-C- 1391c, Installation and Splicing of Underground Cables.

E. The necessary personnel, materials, and equipment shall be present for each exploration in the event of cable damage.

2. INSPECTIONS

A. Prior to any excavation, all control points established by the Contractor shall be inspected by the

COR/RE.

B. All cable trenches shall be inspected by the COR/RE prior to backfill. Normally, all trenches shall be backfilled on the same day they are excavated. In the event a trench or excavation must be left open overnight, it shall be properly barricaded, flagged and lighted.

3. UNKNOWN UTILITIES

If unknown utilities are encountered, immediately notify the COR/RE of the location and type of utility encountered.

EXISTING UTILITY 02053- 4

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PREVENTION, CONTROL AND ABATEMENT OF EROSION AND WATER 02270- 1

SECTION 02270

PREVENTION, CONTROL AND ABATEMENT OF EROSION AND WATER POLLUTION

PART 1 – GENERAL

1. Work Included: The work covered by this Division shall consist of the Best Management Practices (BMPs) for furnishing, installing, maintaining and removing temporary erosion control devices on the Project and in areas outside the construction limits where work is accomplished in conjunction with the project, so as to prevent pollution of water, air, detrimental effects to public or private property adjacent to the project limits, and damage to work on the project. Where practical, temporary erosion control features shall be constructed and maintained as outlined within the Contractor’s approved Erosion Control Plan. Construction exits shall be a mandatory BMP on this project.

2. Related Documents:

Section 02200 Earthwork

3. Referenced Specifications, Codes and Standards

A. The American Society for Testing and Materials (ASTM) Publications: Publications listed in paragraph 1.3 of Section 02200 form a part of this specification to the extent referenced.

B. Virginia Department of Transportation: Standard Specifications For Road and Bridge

Construction.

C. Natural Resources Conservation Service (NRCS): Virginia Conservation Practice Standards

4. Submittals

A. Erosion Control Plan: The plan shall depict the BMPs for the erosion control measures; at the Pre-construction Conference, the Contractor shall present the proposed plans for installation of erosion control devices. The schedule shall be based on project conditions and shall be in written form. This schedule shall specifically indicate the sequence of earthwork operations and the proposed use of temporary erosion control features. This plan shall also outline the Contractor’s proposed methods of controlling erosion of haul roads and areas used for waste materials from the project. This submission shall include but is not limited to the following:

1. General overall Erosion Control Plan;

2. Detailed breakdown of BMPs (erosion control devices) as required for different stages of construction;

3. Set of marked plans or detailed drawings showing areas of control devices and purpose for each;

4. Subsequent staging plans and specific site plans may be submitted to the Contracting Officer through the COR/RE for approval as the work progresses. These plans shall be submitted a minimum of two (2) weeks in advance of construction, to allow review by the COR/RE. No work shall be started until the aforementioned plans have been accepted by Contracting Officer. The Contractor will be responsible for accomplishment of the work in accordance with the accepted plans. The COR/RE may have changes approved that are necessary due to unforeseen circumstances that are beyond the control of the Contractor.

5. Plan Contents: The plan shall consider, but is not limited to the following:

PREVENTION, CONTROL AND ABATEMENT OF EROSION AND WATER 02270- 2

a. Overview of Erosion and Sedimentation Control Plan

1) General Requirements

2) Contractor Submittal a). Contractor must review and sign the Erosion and Sedimentation Control Plan b). Contractor must make commitment to provide erosion and sediment control silt

3) No Work Until Acceptance by Contracting Officer

b. Erosion Control Schedule

1) General Overall Erosion and Sedimentation Implementation Plan (Narrative)

2) Breakdown of Erosion Control Devices (Summary of Quantities)

3) Marked Plans or Detailed drawing showing Control Devices and Purposes

4) Site and Staging Plans

c. Plan Considerations

1) Terrain

a) Hilly

b) Flat

c) Drainage Area

2) Soil Conditions

a) Clay

b) Sandy

c) Rock

3) Adjacent Property

a) Urban

b) Rural

c) Waterways

d) Specific

4) Narrative

a) Worksite Erosion Control Supervisor (WECS) identified and listing of relevant qualifications

b) Summary of quantities for erosion control devices

c) Grassing

PREVENTION, CONTROL AND ABATEMENT OF EROSION AND WATER 02270- 3

5) Plans

a) Before entering drainage ditches, canals

b) Locations of Construction Exit onto Perimeter Road

c) Location of Silt Fence and/or Gates

d) Type of Silt Fence.

PART 2 – PRODUCTS

1. Best Management Practices: BMPs shall be based on State of Virginia DOT or State of Virginia NRCS standards unless otherwise approved by the Contracting Officer. BMPs may include, and are not limited to:

A. Brush Barrier

B. Earth Berm

C. Bituminous Treated Roving

D. Check Dam

E. Channel Stabilization

F. Channel Riprap

G. Construction Exit

H. Diversion Channel

I. Down Drain Structure – Flexible

J. Down Drain Structure – Concrete

K. Down Drain Structure – Metal

L. Permanent Soil Reinforcing Mat

M. Riprap Ditch Checks

N. Riprap

O. Retrofit

P. Silt Retention Barrier

Q. Sedimentation Barrier

R. Inlet Trap

S. Sediment Basin

PREVENTION, CONTROL AND ABATEMENT OF EROSION AND WATER 02270- 4

T. Silt Fence

U. Silt Fence – Reinforced

V. Silt Control Gates

W. Stream Crossing

X. Storm Drain Outlet Protection

Y. Surface Roughening

PART 3 - EXECUTION

1. Scheduling of Successive Operations: Operations shall be scheduled such that the area of unprotected erodible earth exposed at any one time is not larger than the minimum area necessary for efficient construction operations and that the duration of exposure of uncompleted construction to the elements is as short as practicable.

2. Construction Requirements

A. General: The COR/RE has the authority to limit the surface area of erodible earth material exposed by trenching and excavation, and to direct the Contractor to provide immediate permanent and/or temporary erosion control measures to prevent contamination of adjacent drainage ditches, canals, or other areas of water impoundment. Such work should coincide with the Contractor’s Erosion Control Plan. Cut slopes shall be seeded as the excavation proceeds. Under no circumstances shall grading be allowed to exceed the operating range of the grassing equipment In addition to minimizing erosion, this is necessary to keep attraction to birds, to a minimum. The Contractor shall incorporate all erosion control features into the Project at the earliest practicable time as outlined in his accepted Plan.

B. Erodible Area: The Contractor shall limit the area of excavation and trenching operations commensurate with the Contractor’s capability and progress in keeping the finish grading, seeding and other such erosion control measures current in accordance with the accepted Plan.

3. Protection During Suspension of Contract Time - In the event that it is necessary to suspend the construction operations for any appreciable length of time, the top of the earthwork shall be shaped in such a manner as to permit runoff of rainwater. The COR/RE has the authority to apply temporary seeding or other erosion and sediment control measures to minimize erosion and sediment transport.

GENERAL REQUIREMENTS FOR DEMOLITION AND 02503- 1

SECTION 02503

GENERAL REQUIREMENTS FOR DEMOLITION AND RENOVATION

1. REFERENCES

A. The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

B. AIR-CONDITIONING, HEATING AND REFRIGERATION INSTITUTE (AHRI)

AHRI Guideline K (2005) Guideline for Containers for Recovered Non-

Flammable Fluorocarbon Refrigerants

C. AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS

(AASHTO)

AASHTO M 145 (1991; R 2004) Classification of Soils and Soil-Aggregate Mixtures for

Highway Construction Purposes

AASHTO T 180 (2001; R 2004) Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and an 457-mm (18-in) Drop

D. AMERICAN SOCIETY OF SAFETY ENGINEERS (ASSE/SAFE)

ASSE/SAFE A10.6 (2006) Safety Requirements for Demolition Operations

E. CARPET AND RUG INSTITUTE (CRI)

CRI (2009) CRI Carpet Installation Standard

F. U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2008) Safety and Health Requirements Manual

G. U.S. DEPARTMENT OF DEFENSE (DOD)

DOD 4000.25-1-M (2006; Notice 1) Requisitioning and Issue Procedures

H. U.S. FEDERAL AVIATION ADMINISTRATION (FAA)

FAA AC 70/7460-1 (Rev K) Obstruction Marking and Lighting

I. U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

40 CFR 61 National Emission Standards for Hazardous Air Pollutants

40 CFR 82 Protection of Stratospheric Ozone

49 CFR 173.301 Shipment of Compressed Gases in Cylinders and Spherical Pressure Vessels

2. GENERAL REQUIREMENTS

GENERAL REQUIREMENTS FOR DEMOLITION AND 02503- 2

A. This Section specifies administrative and procedural requirements for demolition and renovation.

Refer to other Sections for specific work requirements and limitations applicable to individual parts of the work. Requirements of this Section apply to all disciplines. Refer to specific Sections for other requirements and limitations applicable to the work.

B. Do not begin demolition until authorization is received from the COR. Do not allow accumulations inside or outside the building. The work includes demolition and removal of resulting rubbish and debris. Remove rubbish and debris from Government property daily, unless otherwise directed.

Store materials that cannot be removed daily in areas specified by the COR. In the interest of occupational safety and health, perform the work in accordance with EM 385-1-1, Section 23, Demolition, and other applicable Sections.

C. Protection of Existing Property: Before beginning any demolition work, the Contractor shall carefully survey the site and examine the drawings and specification to determine the extent of the work. The Contractor shall take all necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain in property of the Government, and any damaged items shall be repaired or replaced as approved by the COR at no additional cost to the Government. The Contractor shall carefully coordinate the work of this section with all other work and shall construct and maintain shoring, bracing and supports as required. The Contractor shall ensure that structural elements are not overloaded and shall be responsible for increasing structural supports or adding new supports as may be required as a result of any cutting, removal, or demolition work performed under this contract.

D. Requirements for Structural Work: Do not cut and patch structural elements in a manner that would reduce their load-carrying capacity or load-deflection ratio.

E. Operational and Safety Limitations: Do not cut and patch operating elements or safety related components in a manner that would result in reducing their capacity to perform as intended, or result in increased maintenance, or decreased operational life or safety.

F. Visual Requirements: Do not cut and patch construction exposed on the exterior or in occupied spaces, in a manner that would, in the COR’s opinion, reduce the building’s aesthetic qualities or result in visual evidence of cutting and patching. Remove and replace work cut and patched in a visually unsatisfactory manner.

3. SUBMITTALS

A. The following shall be submitted in accordance with submittal procedures:

1. Demolition Plan

2. Safety Plan

4. REGULATORY AND SAFETY REQUIREMENTS

A. Comply with federal, state, and local hauling and disposal regulations. In addition to the requirements of the "Contract Clauses," conform to the safety requirements contained in

ASSE/SAFE A10.6.

B. Notifications:

1. General Requirements: Furnish timely notification of demolition projects to the COR in writing 10 working days prior to the commencement of work in accordance with 40 CFR 61, Subpart M.

GENERAL REQUIREMENTS FOR DEMOLITION AND 02503- 3

5. DUST AND DEBRIS CONTROL

A. Prevent the spread of dust and debris to occupied portions of the building and avoid the creation of a nuisance or hazard in the surrounding area. Do not use water if it results in hazardous or objectionable conditions such as, but not limited to, ice, flooding, or pollution. Vacuum and dust the work area daily.

6. PROTECTION

A. Traffic Control Signs:

1. Where pedestrian, driver or aircraft safety is endangered in the area of removal work, use traffic barricades with flashing lights. Notify the COR prior to beginning such work.

2. Contractor must provide a minimum of 2 aviation red or high intensity white obstruction lights on temporary structures (including cranes) over 100 feet (30 meters) above ground level. Light construction and installation must comply with FAA AC 70/7460-1. Lights must be operational during periods of reduced visibility, darkness, and as directed by the COR.

Maintain the temporary services during the period of construction and remove only after permanent services have been installed and tested and are in operation.

B. Items to Remain in Place: Take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the Government. Repair or replace damaged items as approved by the Contracting Officer. Coordinate the work of this section with all other work indicated. Construct and maintain shoring, bracing, and supports as required. Ensure that structural elements are not overloaded. Increase structural supports or add new supports as may be required as a result of any cutting, removal, or demolition work performed under this contract. Do not overload structural elements. Provide new supports and reinforcement for existing construction weakened by demolition work. Repairs, reinforcement, or structural replacement require approval by the COR prior to performing such work.

C. Existing Construction Limits and Protection: Do not disturb existing construction beyond the extent indicated or necessary for installation of new construction. Provide temporary shoring and bracing for support of building components to prevent settlement or other movement. Provide protective measures to control accumulation and migration of dust and dirt in all work areas.

Remove snow, dust, dirt, and debris from work areas daily.

D. Weather Protection: For portions of the building to remain, protect building interior and materials and equipment from the weather at all times. Where removal of existing roofing is necessary to accomplish work, have materials and workmen ready to provide adequate and temporary covering of exposed areas.

E. Trees: Protect trees within the project site which might be damaged during demolition and which are indicated to be left in place. Replace any tree designated to remain that is damaged during the work under this contract with like-kind or as approved by the COR.

F. Utility Service: Maintain existing utilities indicated to stay in service and protect against damage during demolition and operations. Coordinate with COR for shutdown utilities.

G. Facilities: Protect electrical and mechanical services and utilities. Where removal of existing utilities and pavement is specified or indicated on drawings, provide approved barricades, temporary covering of exposed areas, and temporary services or connections for electrical and mechanical utilities. Floors, roofs, walls, columns, pilasters, and other structural components that are designed and constructed to stand without lateral support or shoring, and are determined to be in stable condition, must remain standing without additional bracing, shoring, or lateral support

GENERAL REQUIREMENTS FOR DEMOLITION AND 02503- 4

until demolished or deconstructed, unless directed otherwise by the COR. Ensure that no elements determined to be unstable are left unsupported and place and secure bracing, shoring, or lateral supports as may be required as a result of any cutting, removal, or demolition work performed under this contract.

H. Protection of Personnel: Before, during and after the demolition work the Contractor shall continuously evaluate the condition of the structure being demolished or deconstructed and take immediate action to protect all personnel working in and around the project site. No area, section, or component of floors, roofs, walls, columns, pilasters, or other structural element will be allowed to be left standing without sufficient bracing, shoring, or lateral support to prevent collapse or failure while workmen remove debris or perform other work in the immediate area.

7. BURNING

A. The use of burning at the project site for the disposal of refuse and debris will not be permitted.

8. RELOCATIONS

A. Perform the removal and reinstallation of relocated items as indicated on drawings with workmen skilled in the trades involved. Items to be relocated which are damaged by the Contractor shall be repaired or replaced with new undamaged items as approved by the COR.

9. REQUIRED DATA

A. Prepare a Demolition Plan. Include in the plan procedures for careful removal and disposition of materials to be reused, coordination with other work in progress, a disconnection schedule of utility services, a detailed description of methods and equipment to be used for each operation and of the sequence of operations.

B. Include statements affirming Contractor inspection of the existing site and its suitability to perform as a safe working area or if inspection reveals a safety hazard to workers, state provisions for securing the safety of the workers throughout the performance of the work. Provide procedures for safe conduct of the work in accordance with EM 385-1-1. Plan shall be approved by COR prior to work beginning.

10. ENVIRONMENTAL PROTECTION

A. Comply with the Environmental Protection Agency requirements specified.

11. USE OF EXPLOSIVES

A. Use of explosives will not be permitted.

PART 2 – PRODUCTS

1. MATERIALS

A. Use materials that are identical to existing materials. If identical materials are not available or cannot be used where exposed surfaces are involved, use materials that match existing adjacent surfaces to the fullest extent possible with regard to visual effect. Use materials whose installed performance will equal or surpass that of existing materials.

PART 3 – EXECUTION

GENERAL REQUIREMENTS FOR DEMOLITION AND 02503- 5

1. INSPECTION

A. Prior to Cutting Existing Surfaces: Examine surfaces to be cut and patched and conditions under which cutting and patching is to be performed. Take corrective action before proceeding, if unsafe or unsatisfactory conditions are encountered.

B. Prior to Proceeding: Meet at the site with parties involved in cutting and patching, including mechanical and electrical trades. Review areas of potential interference and conflict. Coordinate procedures and resolve potential conflicts before proceeding.

2. PREPARATION

A. Provide temporary support of work to be cut. Protect existing construction during cutting and patching to prevent damage. Provide protection from adverse weather conditions for portions of the Project that might be exposed during cutting and patching operations. Avoid interference with use of adjoining areas or interruption of free passage to adjoining areas. Take all precautions necessary to avoid cutting existing pipe, conduit or ductwork serving the building, but scheduled to be removed or relocated until provisions have been made to bypass them.

3. EXISTING FACILITIES TO BE REMOVED

A. GENERAL

1. Existing construction scheduled to be removed for reuse shall be disassembled. Dismantled and removed materials are to be separated, set aside, and prepared as specified, and stored or delivered to a collection point for reuse.

2. Existing Structures:

a. Remove existing structures indicated to be removed to top of foundation walls. Break up basement slabs to permit drainage. Remove sidewalks, curbs, gutters and street light bases as indicated on drawings.

b. Interior walls, other than retaining walls and partitions, shall be removed to top of concrete slab on ground.

c. Demolish structures in a systematic manner from the top of the structure to the ground.

Complete demolition work above each level before the supporting members on the lower level are disturbed. Demolish concrete and masonry walls in small sections. Remove structural framing members and lower to ground by means of derricks, platforms hoists, or other suitable methods as approved by the COR.

d. Locate demolition equipment throughout the structure and remove materials so as to not impose excessive loads to supporting walls, floors, or framing.

3. Cutting and Patching:

a. Employ skilled workmen to perform cutting and patching. Proceed with cutting and patching at the earliest feasible time and complete without delay.

b. Cutting: Cut existing construction to provide for installation of other components or performance of other construction activities and the subsequent fitting and patching required to restore surfaces to their original condition. Cut existing construction using methods least likely to damage elements to be retained or adjoining construction. Where possible review proposed procedures with the original installer; comply with original installer's recommendations. In general, where cutting is required use hand or small

GENERAL REQUIREMENTS FOR DEMOLITION AND 02503- 6

power tools designed for sawing or grinding, not hammering and chopping. Cut holes and slots neatly to size required with minimum disturbance of adjacent surfaces. Temporarily cover openings when not in use.

1) Avoid Marring Existing Surfaces: To avoid marring existing finished surfaces, cut or drill from the exposed or finished side into concealed surfaces.

2) Concrete and Masonry Surfaces: Cut through concrete and masonry using a cutting machine such as carborundum saw or diamond core drill.

3) Utility Services: Bypass utility services such as pipe or conduit before cutting, where services are shown or required to be removed, relocated or abandoned.

Remove pipe or conduit in walls or partitions that are noted to be removed, unless noted by Contracting Officer Representative to be cut-off. Cap, valve, or plug and seal the remaining portion of pipe or conduit to prevent entrance of moisture or other foreign matter after bypassing and cutting. Use approved firestopping methods in all fire-rated walls, floors or ceilings.

c. Patch: Patch with durable seams that are as invisible as possible. Comply with specified tolerances. Where feasible, inspect and test patched areas to demonstrate integrity of the installation.

d. Finish Restoration: Restore exposed finishes of patched areas and extend finish restoration into retained adjoining construction in a manner that will eliminate evidence of patching and refinishing.

e. Finish Restoration in More than One Area: Where removal of walls or partitions extends one finished area into another, patch and repair floor and wall surfaces in the new space to provide an even surface of uniform color and appearance. Remove existing floor and wall coverings and replace with new materials, if necessary, to achieve uniform color and appearance.

f. Smooth Painted Surfaces: Where patching occurs in a smooth painted surface, extend final paint coat over entire area containing the patch, after the patched area has received primer and second coat.

g. Existing Ceilings: Patch, repair or re-hang existing ceilings as necessary to provide an even plane surface of uniform appearance.

4. Items with Unique/Regulated Disposal Requirements: Remove and dispose of items with unique or regulated disposal requirements in the manner dictated by law or in the most environmentally responsible manner.

B. CIVIL

1. Utilities and Related Equipment:

a. General Requirements: Do not interrupt existing utilities serving occupied or used facilities, except when authorized in writing by the COR. Do not interrupt existing utilities serving facilities occupied and used by the Government or adjacent tenants except when approved in writing and then only after temporary utility services have been approved and provided. Do not begin demolition work until all utility disconnections have been made. Shut off and cap utilities for future use, as indicated on drawings.

b. Disconnecting Existing Utilities: Remove existing utilities as indicated on drawings and terminate in a manner conforming to the nationally recognized code covering the specific utility and approved by the COR. When utility lines are encountered that are not

GENERAL REQUIREMENTS FOR DEMOLITION AND 02503- 7

indicated on drawings on the drawings, the COR shall be notified prior to further work in that area. Remove meters and related equipment and deliver to a location in accordance with instructions of the COR.

2. Paving and Slabs: Remove or sawcut concrete paving and slabs as indicated on drawings to a depth of 12 inches below existing adjacent grade.

C. ARCHITECTURAL

1. Roofing: Remove existing roof system and associated components in their entirety down to existing roof deck. Remove roofing system and insulation without damaging the roof deck.

Sequence work to minimize building exposure between demolition and new roof materials installation.

a. Temporary Roofing: Install temporary roofing and flashing as necessary to maintain a watertight condition throughout the course of the work. Remove temporary work prior to installation of permanent roof system materials unless approved otherwise by the COR. If the existing deck or support structure is deteriorated where indicated, such that ability to support foot traffic and construction loads is unknown. Make provisions for worker safety during demolition, and installation of new materials.

b. Reroofing: When removing the existing roofing system from the roof deck, remove only as much roofing as can be recovered by the end of the work day, unless approved otherwise by the COR. Do not attempt to open the roof covering system in threatening weather. Reseal all openings prior to suspension of work the same day.

2. Carpentry: Remove and reinstall windows, doors, frames, and cabinets, and similar items as whole units, complete with trim and accessories as indicated on drawings. Do not remove hardware attached to units, except for door closers unless noted otherwise in drawings. Brace the open end of door frames to prevent damage.

3. Carpet: Remove existing carpet in accordance with manufacturer recommendations. Remove adhesive according to recommendations of the Carpet and Rug Institute (CRI). Adhesive removal solvents shall comply with CRI 104.

4. Acoustic Ceiling Tile: Remove and store ceiling tiles to be reused if indicated on drawings.

5. Locksets on Swinging Doors: The Contractor shall remove all locksets from all swinging doors indicated on drawings to be removed and disposed. Deliver the locksets and related items to a designated location for receipt by the COR after removal.

D. STRUCTURAL

1. Masonry: Sawcut and remove masonry so as to prevent damage to surfaces to remain and to facilitate the installation of new work. Where new masonry adjoins existing, the new work shall abut or tie into the existing construction as specified for the new work. Provide square, straight edges and corners where existing masonry adjoins new work and other locations.

2. Concrete: Saw concrete along straight lines to a depth of a minimum 2 inch. Make each cut in walls perpendicular to the face and in alignment with the cut in the opposite face. Break out the remainder of the concrete provided that the broken area is concealed in the finished work, and the remaining concrete is sound. At locations where the broken face cannot be concealed, grind smooth or saw cut entirely through the concrete.

3. Structural Steel: Dismantle structural steel at field connections and in a manner that will prevent bending or damage. Flame-cutting torches are permitted when other methods of

GENERAL REQUIREMENTS FOR DEMOLITION AND 02503- 8

dismantling are not practical. Any structural steel to be reuse shall be stored off the ground and protected from the weather.

4. Miscellaneous Metal: When shop-fabricated items such as access doors and frames, steel gratings, metal ladders, metal railings, metal windows and similar items and light-gage and cold-formed metal framing, metal toilet partitions, toilet accessories and similar items will be reused, removed them as whole units and shall be store and protected from weather.

E. MECHANICAL

1. Air Conditioning Equipment: Remove air conditioning, refrigeration, and other equipment containing refrigerants without releasing chlorofluorocarbon refrigerants to the atmosphere in accordance with the Clean Air Act Amendment of 1990. Recover all refrigerants prior to removing air conditioning, refrigeration, and other equipment containing refrigerants and dispose of in accordance with the paragraph entitled "Disposal of Ozone Depleting Substance

(ODS)."

2. Cylinders and Canisters: Remove all fire suppression system cylinders and canisters and dispose of in accordance with the paragraph entitled "Disposal of Ozone Depleting Substance

(ODS)."

3. Mechanical Equipment and Fixtures: Disconnect mechanical hardware at the nearest connection to existing services to remain, unless otherwise noted. Mechanical equipment and fixtures must be disconnected at fittings. Remove service valves attached to the unit. Do not remove equipment until approved.

4. Piping: Disconnect piping at unions, flanges and valves, and fittings as required to reduce the pipe into straight lengths. If the piping that remains can become pressurized due to upstream valve failure, end caps, blind flanges, or other types of plugs or fittings with a pressure gage and bleed valve shall be attached to the open end of the pipe to ensure positive leak control.

Carefully dismantle piping that previously contained gas, gasoline, oil, or other dangerous fluids, with precautions taken to prevent injury to persons and property.

F. ELECTRICAL

1. Electrical Equipment and Fixtures: Disconnect primary, secondary, control, communication, and signal circuits at the point of attachment to their distribution system.

a. Fixtures: Remove electrical fixtures as indicated on drawings.

b. Electrical Devices: Remove switches, switchgear, transformers, conductors including wire and nonmetallic sheathed and flexible armored cable, regulators, meters, instruments, plates, circuit breakers, panelboards, outlet boxes, and similar items as indicated on drawings.

c. Wiring Ducts or Troughs: Dismantle plug-in ducts and wiring troughs into unit lengths.

Remove plug-in or disconnecting devices from the busway.

d. Conduit and Miscellaneous Items: Remove conduit except where embedded in concrete or masonry as indicated on drawings. Consider corroded, bent, or damaged conduit as scrap metal. Sort straight and undamaged lengths of conduit according to size and type.

Classify supports, knobs, tubes, cleats, and straps as debris to be removed and disposed.

4. DISPOSITION OF MATERIAL

A. Title to Materials: All materials and equipment removed shall become the property of the Contractor and shall be removed from Government property.

GENERAL REQUIREMENTS FOR DEMOLITION AND 02503- 9

B. Reuse of Materials and Equipment: Remove and store materials and equipment indicated to be reused to prevent damage, and reinstall as the work progresses.

C. Disposal of Ozone Depleting Substance (ODS): Class I and Class II ODS are defined in Section, 602(a) and (b), of The Clean Air Act. Prevent discharge of Class I and Class II ODS to the atmosphere. Place recovered ODS in cylinders meeting AHRI Guideline K suitable for the type ODS (filled to no more than 80 percent capacity) and provide appropriate labeling. Recovered ODS shall be removed from Government property and disposed of in accordance with 40 CFR 82.

Products, equipment and appliances containing ODS in a sealed, self-contained system (e.g.

residential refrigerators and window air conditioners) shall be disposed of in accordance with 40

CFR 82.

1. Special Instructions: No more than one type of ODS is permitted in each container. A warning/hazardous label shall be applied to the containers in accordance with Department of Transportation regulations. All cylinders including but not limited to fire extinguishers, spheres, or canisters containing an ODS shall have a tag with the following information:

a. Activity name and unit identification code.

b. Activity point of contact and phone number.

c. Type of ODS and pounds of ODS contained.

d. Date of shipment.

2. Fire Suppression Containers: Deactivate fire suppression system cylinders and canisters with electrical charges or initiators prior to shipment. Also, safety caps must be used to cover exposed actuation mechanisms and discharge ports on these special cylinders.

D. Transportation Guidance: Ship all ODS containers in accordance with MIL-STD-129, DLA

4145.25 (also referenced one of the following: Army Regulation 700-68, Naval Supply Instruction 4440.128C, Marine Corps Order 10330.2C, and Air Force Regulation 67-12), 49 CFR 173.301, and

DOD 4000.25-1-M.

5. DISPOSAL OF REMOVED MATERIALS

A. Regulation of Removed Materials: Dispose of debris, rubbish, scrap, and other materials resulting from removal operations with all applicable federal, state and local regulations as contractually specified.

B. Burning on Government Property: Burning of materials removed from demolished structures will not be permitted on Government property.

C. Removal to Spoil Areas on Government Property: Transport noncombustible materials removed from demolition structures to designated spoil areas on Government property.

D. Removal from Government Property: Transport waste materials removed from demolished structures, from Government property for legal disposal. Dispose of waste soil as directed.

GENERAL REQUIREMENTS FOR DEMOLITION AND 02503- 10

GRASSING (BY 02920- 1

SECTION 02920

GRASSING (BY SEEDING)

1. Scope: The Contractor shall furnish all labor, materials, tools, equipment, plant, and services necessary to restore to original conditions all of the areas disturbed by construction efforts. These include areas where Contractor is directed to seed whether or not disturbed by construction. These areas are not only immediately adjacent to active construction, but can be any area utilized by Contractor (including areas traversed) that has been defaced during the contract.

2. Conditions: Seed shall be sown only when the soil is moist and in proper condition to induce growth.

Fertilizing, seeding, or mulching operations will not be permitted when wind velocities exceed 15 miles per hour. When drought, water saturated soil, freezing temperatures, or inclement weather conditions prevail, the work shall be postponed.

3. Maintenance And Repair: The Contractor shall maintain seeded areas until final acceptance of the work is made as specified in the contract.

4. Submittals: Certification of compliance with the specifications from the material supplier for seed, fertilizer, and lime.

PART 2 - PRODUCTS

1. Fertilizer: The numerical designations for fertilizer indicate the minimum percentages (respectively) of (1) total nitrogen, (2) available phosphoric acid, and (3) water soluble potash contained in the fertilizer.

Contractor shall supply any commercially recognized brand of 12-8-8 fertilizer. At least 50% (percent) of the phosphoric acid shall be from normal super phosphate or an equivalent source that will provide a minimum of 2 units of sulfur. The amount of sulfur shall be indicated on the quantitative analysis card attached to each bag or other container.

2. Lime: The designation "fertilizing" shall include the application of an agricultural type, dolomitic limestone where indicated for by soil testing or direction of the COR/RE. The limestone may be a component of the 12-8-8 fertilizer or may be separately applied.

3. Seed: Seed shall be furnished separately or in mixtures in standard containers, clearly marked…