8-C25FI103184211R IFB Part 4 Technical Appendix 2 Book 2.pdf

PART 4

APPENDIX 2

BOOK 2

Requisition: C25FI103184211R

Specifications

All Stations Accessibility Program (ASAP) Logan Square Line California Station

BOOK 1

Division 01 General Requirements

01 11 00 Summary of Work 01 18 00 Project Utility Coordination 01 21 00 Allowances 01 21 16 Owner’s Contingency Allowance 01 29 10 Applications and Certifications for Payments 01 31 00 Project Management and Coordination 01 31 19 Project Meetings 01 31 23 Project Website 01 32 50 Construction Schedule 01 33 00 Submittal Procedures 01 35 00 Special Procedures 01 35 13 Special Procedures for Non-Rail Facilities 01 35 23 Owner Safety Requirements 01 35 91 01 35 96

Historic Treatment Procedures General Requirements for Construction Safety and Security Certification

01 42 00 References 01 43 00 Quality Assurance 01 45 00 Quality Control 01 45 23 Testing and Inspection Services 01 50 00 Temporary Facilities and Controls 01 55 00 Traffic Regulation 01 63 00 Product Substitution Procedures 01 73 29 Cutting and Patching 01 77 00 Closeout Procedures 01 78 00 Closeout Submittals 01 78 23 01 78 39

Operations and Maintenance Data Operation and Maintenance Asset Information

BOOK 2

Division 02 Existing Conditions

02 22 13 02 41 19

Vibration Monitoring Protocol Selective Structure Demolition

02 42 96 Historic Removal and Dismantling 02 71 10 Exterior Asbestos Abatement 02 72 00 Lead Abatement

Division 03 Concrete

03 20 10 Concrete Reinforcement Epoxy Coated

03 30 00 Cast-In-Place Concrete 03 61 11 Non-Shrink Grout 03 74 00 Concrete Repairs

Division 04 Masonry

04 80 00 Unit Masonry

Division 05 Metals

05 01 00 Post Install Anchors 05 03 71 Historic Decorative Metal Cleaning 05 10 30 Structural Steel 05 31 00 Steel Deck 05 42 00 Cold-Formed Metal Framing 05 50 00 Metal Fabrications 05 50 10 Barriers, High Barriers and Gates 05 50 20 Railings and Guardrails 05 51 05 Metal Stairs with Aluminum Treads 05 53 00 Metal Gratings 05 71 00 Perforated Metal Panels for Glazing Protection 05 80 10 Elastomeric Expansion Assemblies

Division 06 Wood

06 05 73 Fire Retardant Treated Wood for Exterior Applications 06 10 00 Rough Carpentry 06 15 10 Timber Platform Construction --- Fire Treated Wood 06 51 50 Fiberglass Handrails, Stair and Platform

Division 07 Thermal and Moisture Prevention

07 11 50 Bituminous Dampproofing 07 14 13 Hot Fluid-Applied Rubberized Asphalt Waterproofing 07 14 16 Cold Fluid-Applied Waterproofing 07 19 00 07 21 00

Bentonite Waterproofing Thermal Insulation

07 26 00 Vapor Retarders 07 27 26 Fluid-Applied Membrane Air Barriers (WRB) 07 41 10 Metal Roof Panels and Drip Pans 07 42 13 Metal Composite Material Wall Panels 07 52 60 Modified Bituminous Sheet Roofing --- Heat Welded 07 62 00 Sheet Metal Flashing and Trim 07 72 00 Roof Accessories 07 72 53 Snow Guards 07 81 00 Applied Fire Protection 07 84 13 Penetration Firestopping

07 84 43 Joint Firestopping 07 90 00 Joint Sealers 07 95 13 Expansion Joint Cover Assemblies

BOOK 3

Division 08 Openings

08 11 00 Standard Steel Doors and Frames (Temp Station) 08 13 00 Stainless Steel Doors and Frames 08 14 33 Stile and Rail Wood Doors 08 41 10 Aluminum Entrances and Framing 08 53 13 Vinyl Windows 08 71 00 Door Hardware 08 80 00 Glass and Glazing

Division 09 Finishes

09 21 00 Gypsum Board Assemblies 09 22 00 Portland Cement Plaster 09 30 10 Tactile Tile 09 90 00 Painting 09 96 23 Graffiti Resistant Coatings

Division 10 Specialties

10 14 26 ADA Signage Pedestal 10 20 00 Louvers and Vents 10 41 60 Transit Information Cabinets and Panels 10 42 50 Vitreous Enameled Steel Signs 10 42 60 Illuminated Signs 10 42 70 Fiberglass Embedded Signs 10 42 80 Aluminum Signs 10 42 90 Braille Tactile Signs 10 44 16 Fire Extinguishers and Cabinets 10 45 40 Rotogates 10 74 00 Station Platform Gap Filler and Enclosure

Division 11 Equipment

11 81 29 Facility Fall Protection

Division 12 Furnishings

12 67 20 Windbreaks 12 67 24 Stainless Steel Bench 12 87 11 Platform Sandboxes 12 93 13 Bicycle Racks 12 93 23 Station Trash Receptacle

Division 13 Special Construction

13 08 00 General Commissioning Requirements 13 39 00 Temporary Passenger and Employee Facilities

Division 14 Conveying Equipment

14 24 00 Hydraulic Elevators

Division 22 Plumbing

22 05 00 Common Work Results for Plumbing 22 05 17 Sleeves and Sleeve Seals for Plumbing Piping 22 05 18 Escutcheons for Plumbing Piping 22 05 19 Meters and Gages for Plumbing Piping 22 05 23 General-Duty Valves for Plumbing Piping 22 05 29 Hangers and Supports for Plumbing Piping and Equipment 22 05 48 Vibration Controls for Plumbing Piping and Equipment 22 05 53 Identification for Plumbing Piping and Equipment 22 07 00 Pipe Insulation 22 08 00 Commissioning of Plumbing 22 13 14 Plumbing for Underground Drainage 22 13 16 Sanitary Waste and Vent Piping 22 13 19 Sanitary Waste Piping Specialties 22 13 20 Sanitary Drains 22 13 29 Sanitary Sewerage Pumps 22 14 13 Storm Drainage Piping 22 14 23 Storm Drainage Piping Specialties 22 14 26 Prefabricated Trench Drain System 22 14 29 Sump Pumps 22 40 00 Plumbing Fixtures

BOOK 4

Division 23 Heating Ventilating and Air Conditioning

23 00 00 Heating, Ventilating and Air Conditioning 23 00 10 Ventilation 23 05 16 Expansion Fittings and Loops for HVAC Piping 23 05 17 Sleeves and Sleeve Seals for HVAC Piping 23 05 18 Escutcheons for HVAC Piping 23 05 48 Vibration Controls for HVAC Piping and Equipment 23 07 00 Mechanical Insulation 23 08 00 Commissioning of HVAC 23 23 00 Refrigerant Piping 23 81 26 Split-System Air Conditioners 23 83 33 Radiant Heating Units

Division 26 Electrical

26 01 00 General Provisions Electrical 26 03 00 Electrical Demolition 26 05 00 Raceways and Boxes 26 05 19 Low-Voltage Electrical Power Conductors and Cables 26 05 44 Sleeves and Sleeve Seals for Electrical Raceways and Cabling 26 05 53 Identification for Electrical Systems 26 10 00 Basic Electrical Materials and Methods 26 12 30 Wires Cables Splices Terminations 26 14 10 Wiring Devices 26 17 00 Local Control 26 17 50 Local Control Panels 26 19 00 Grounding 26 40 00 Switchboard 26 46 00 Dry Type Transformers 26 47 00 Panelboards 26 49 00 Generator Tap Box 26 50 10 Lighting Fixtures 26 55 60 LED Sign Box 26 75 00 Cabinet and Terminal Strips 26 77 00 Infrared Heating 26 95 00 Electrical Testing

Division 27 Communications

27 00 10 Communications General Provisions 27 05 26 Grounding and Bonding for Communication Systems 27 05 33 Conduit and Back Boxes for Communication Systems

27 11 16 Communication Cabinets, Racks and Enclosures 27 11 26 Communication Equipment Power System 27 15 23 Communications Fiber Optic Horizontal Cabling 27 21 10 Communications Backbone Network 27 21 29 Data Communication Switch 27 32 13 Telephone Sets 27 32 26 Help Point Telephone 27 42 16 Dynamic Message Sign 27 51 17 Public Address Speakers

Division 28 Electronic Safety and Security

28 16 19 Intrusion Detection Remote Devices and Sensors 28 23 13 Video Surveillance Control and Management Client 28 23 31 Closed Circuit Television Fixed Cameras 28 23 32 Closed Circuit Television PTZ Cameras 28 31 00 Fire Detection and Alarm System 28 46 11 SCADA Remote Terminal Unit

Division 31 Earthwork

31 09 13 Geotechnical and Structural Instrumentation and Monitoring 31 10 00 Site Clearing 31 15 00 Structural Shoring 31 20 00 Earthwork 31 23 19 Dewatering and Drainage 31 50 00 Excavation Support and Protection 31 63 33 Drilled Micropiles

Division 32 Exterior Improvements

32 12 00 Bituminous Concrete Pavements 32 13 00 Concrete Paving and Curbs 32 31 13 Chain Link Fences and Gates 32 90 00 Landscaping

Division 33 Utilities

33 05 00 Common Work Results for Utilities 33 05 29 Hangers and Supports for Utility System Piping and Equipment 33 41 00 Storm Utility Drainage Piping 33 68 00 Sewer Systems

Division 34 Transportation

34 42 38 Miscellaneous Components and Products 34 42 40 External Signal Cable 34 42 42 Signal Communications Fiber Optic Cable Plant 34 42 92 Signal Communications Copper Cabling

2015-0027.04 LS Line – California Station Issue for Bid All Stations Accessibility Program December 2024

Vibration Monitoring Protocol 02 22 13-1 CTA Master Guide Specification, Rev. 0

SECTION 02 22 13

VIBRATION MONITORING PROTOCOL

PART 1 - GENERAL

1.01 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Special Conditions and other Specification sections, apply to this section.

1.02 SUMMARY

A. Vibration monitoring is required where structures or utilities are near the operation that is causing the vibrations. For this Specification, demolition refers to any Contractor activity related to removal of existing construction which is performed before construction. Construction refers to any Contractor activity associated with new construction after demolition is completed.

B. Division of Responsibility: The Contractor’s Vibration Monitoring specialist is responsible for establishing maximum vibration thresholds for all construction activities, including vibratory compaction operations and excavations. A Vibration Monitoring Plan, prepared by a Registered Professional Engineer licensed in the State of Illinois, will describe the zone of influence of construction, how Contractor will monitor the effects of construction on adjacent facilities, the monitoring frequency, the evaluation procedures, and the mitigation options, within the guidelines contained in the U.S. Federal Transportation Administration (FTA) Transit Noise and Vibration Impact Assessment guidance manual (Latest version at time of bid).

1.03 REFERENCES

A. Federal Transportation Administration (FTA): Transit Noise and Vibration Impact Assessment (latest version at time of bid).

1.04 QUALITY ASSURANCE

A. The Monitoring Engineer must demonstrate experience on five similar projects and not less than five years of successful experience in performing the type of work specified. The Monitoring Engineer shall have expertise in the following requirements. Documentation of this experience must be furnished at least three weeks prior to the preconstruction meeting. The Authority reserves the right to require a change in the sub-contracted Monitoring Engineer if the Monitoring Engineer is not acceptable but the remainder of the Contractor’s bid is responsive.

1. Conducting and documenting structural surveys by video methods,

2. Monitoring vibrations with a seismograph and with other appropriate instrumentation.

3. Assessing all structures and property surrounding structures, infrastructure, and other site improvements deemed receptors, for potential damage that may occur as a result of the Contractor demolition, construction or other activities.

1.05 SUBMITTALS

A. Resume of the Monitoring Engineer, and other key personnel, detailing relevant experience and qualifications as specified in Section 1 – Quality Assurance.

B. Product Data and certifications for all types of instruments to be installed to monitor vibrations.

Monitoring instruments must include data sheets with regularly scheduled calibration and maintenance procedure requirements.

2015-0027.04 LS Line – California Station All Stations Accessibility Program

Issue for Bid (IFB) Documents December 30, 2024

Vibration Monitoring Protocol 02 22 13-2 CTA Master Guide Specification, Rev. 0

C. Detailed Construction Vibration Assessment in accordance with the FTA guidance manual.

Construction Vibration Assessment must include, but not limited to the following:

1. Description of the duration and type of equipment to be used during construction.

2. Quantitative Assessment that estimates vibration impact from heavy construction activities such as blasting, pile driving, excavation.

3. Identification of Vibration Mitigation Measures.

D. Vibration Monitoring Process Plan that contains a detailed step-by-step procedure for all locations of existing structures or utilities adjacent to construction operations causing vibration.

The Vibration Monitoring Process Plan must include the following:

1. Identification of existing structures that will be monitored for vibrations during the construction period.

2. A list of maximum threshold vibration limits for all existing structures as required by FTA’s latest Transit Noise and Vibration Assessment.

3. Identification of any existing structures that require pre-construction and post-construction surveys.

4. Identification of sensitive medical facilities and equipment, and critical time windows of vibration-sensitive activities.

5. Drawings and Details that show physical locations of instrumentation indicating layout and instrumentation installation details. The Drawing must show the instruction in relation to nearby existing track structures, and adjacent private properties.

6. Step-by-Step procedures of processing data.

7. Contingency Procedures for when maximum thresholds are exceeded.

8. A list of all Equipment that will be used during construction operations.

9. Outline of sample reports and processed data forms.

10. Inventory complaints by location, time, activity, response and mitigation proposal.

E. Pre-Construction Survey will be performed for the existing structures and infrastructures determined by the Monitoring Engineer. Pre-construction documentation must include, but not limited to the following:

1. Documentation of the integrity of existing building materials and the general overall condition of the structures recorded by written text, photographs, and video recording.

2. Established locations and elevations of reference points, chosen by the Monitoring Engineer, for documentation of measurements.

3. A detailed on-site inspection conducted in the presence of the Authority or their representative, the Contract, property owners or property managers if appropriate, and representatives of any involved utility companies or other receptors.

4. Documentation of all structural deficiencies with regard to location, size, type, etc.

F. The required vibration measurements, as described in this section, must be included in daily reports to document the demolition and construction vibrations. Information provided daily shall include the following:

1. Identification of seismograph used, including: name, model number, serial number, and most recent calibration date.

2. Description of Contractor's demolition and construction equipment and location(s) where each piece of equipment was operated.

3. Name of representative(s) of Monitoring Engineer providing monitoring services.

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Vibration Monitoring Protocol 02 22 13-3 CTA Master Guide Specification, Rev. 0

4. Distance and direction of recording station from demolition and construction equipment.

5. Photograph and surveyed location of seismograph.

6. Type of ground at recording station, material on which the instrument of geophone was sitting, and method of seating the equipment.

7. Frequency and particle velocity.

8. A dated and signed copy of records of seismograph readings.

9. Contractor documentation of any operational changes necessary to reduce vibration levels below the limits established herein.

G. Post-Construction Survey by the Monitoring Engineer must be performed after all punchlist items have been completed. Post-Construction Survey documentation must follow the requirements set forth for the Pre-Construction Survey.

PART 2 - PRODUCTS

2.01 EQUIPMENT

A. Equipment used are to be new and have a design life of at least five (5) years. Unless specified otherwise, all items such as seismographs, crack monitors, etc. are applied as recommended by the Monitoring Engineer.

B. All monitoring equipment used is to achieve accuracy, resolution and tolerance requirements as specified in product data submittals and per Monitoring Engineer’s Recommendations.

PART 3 - EXECTUTION

3.01 STRUCTURAL SURVEYS

A. Pre-construction structural surveys must be performed before any demolition activities take place and include, but not be limited to, inspection and video-recording of the existing condition of all structures and property surrounding structures, infrastructure, and other site improvements deemed receptors. This includes video-recording both the inside and outside of existing structures.

B. Pre-construction structural surveys must be performed within ten (10) days prior to any demolition activity that precedes construction activity. The Monitoring Engineer must coordinate the date and time of the inspections with the Authority, Engineer of Record, and the owner of the building, property, or other receptor to be surveyed (or their representative), at least ten (10) days in advance of the structural survey.

C. The Monitoring Engineer must provide all materials, labor, and equipment necessary for performing a video inspection. The Monitoring Engineer shall use high-quality, color equipment that allows both audio and video information to be recorded. Recordings must not be edited.

Control pan and zoom rates shall ensure playback clarity and provide lighting for the camera if necessary. Audio commentary must be provided as necessary during filming to document existing conditions. Special consideration shall be given to any existing structural defects, including measurement of any crack lengths and widths.

D. Contractor will make data available to CTA in the event of a property owner requests to review the survey or video data. Data will be categorized, grouped and labeled by property owner and address. Contractor to track parcels by right of-way number, events, dates, etc.

E. The Monitoring Engineer must complete a post-construction structural survey after all punch list items have been resolved to the Authority’s satisfaction. This post-construction structural survey must be completed following the same procedure as for the pre-construction structural survey.

2015-0027.04 LS Line – California Station All Stations Accessibility Program

Vibration Monitoring Protocol 02 22 13-4 CTA Master Guide Specification, Rev. 0

F. The structural surveys shall be performed in the presence of the owner or designated representative (e.g. the property manager) of each property, building, structure or other receptor to be surveyed. The Monitoring Engineer shall obtain signature(s) of the owner(s) (or their designated representative) of the structure or property or other receptor surveyed, acknowledging the results of the survey, stating that they agree with the results of the survey, and stating that the conditions presented in the survey are the conditions that were present on the date of the survey.

G. If the Monitoring Engineer believes that crack monitors should be placed in a structure, those crack monitors must be placed while the property owner or property manager or other designated representative is present to document the cracks limits and width prior to the start of any demolition or excavation activity. All cracks are to be documented in both the Pre-construction and Post-construction survey with crack lengths and widths measured.

H. The Monitoring Engineer must identify all adjacent buildings to be monitored during construction activities that are in accordance with the FTA Transit Noise and Vibration Assessment.

3.02 MONITORING OF VIBRATIONS

A. Ground vibrations shall be measured for the duration of the demolition and construction and all other Contractor activity. Ground vibrations shall be monitored with “continuous reading” mode for the equipment used with recording frequency determined by the Monitoring Engineer.

B. Vibration monitoring is required to document vibrations generated during demolition and construction and all other Contractor activity. The peak particle velocity (PPV) of ground vibrations is generally used to monitor the effect of vibrations on structures. When monitoring vibrations consideration shall be given to: the type of structure being evaluated; the frequency of the vibrations, and the construction equipment used. The monitoring of vibrations shall include, but not be limited to, the following:

1. Determination and documentation of existing level of vibrations.

2. Monitoring of all demolition and construction operations that significantly contribute to the production of vibrations with a special effort made to document the vibration levels associated with demolition and construction procedures.

3. The development of criteria for controlling construction activities so that the determined maximum PPV thresholds are not exceeded during demolition and construction.

4. When performing station demolition and construction and other Contractor activities, the Monitoring Engineer must monitor the operations with equipment and instruments submitted and approved by the Monitoring Engineer. All instruments for measuring vibrations must be capable of measuring, recording, and producing an electronic file and hardcopy printout of the frequency and PPV in three mutually perpendicular axes. Vector-sum instruments are not allowed. The instruments must also be capable of measuring and recording the frequency and displacement of each vibration event.

5. The seismographs must be performed immediately before and directly after each measurement session.

6. The seismograph locations must be as recommended by the Monitoring Engineer, between the demolition and construction activity and the adjacent structures.

7. The location of the seismographs must be surveyed. Photographs must be taken each day showing the location of the seismographs relative to the receptors being monitored and other fixed surface features.

8. Synchronize or otherwise coordinate time clocks of the seismographs with the Authority inspectors each day before commencement of demolition and construction activities. Print and submit the record of results for each seismograph after completion of work each day.

2015-0027.04 LS Line – California Station All Stations Accessibility Program

Vibration Monitoring Protocol 02 22 13-5 CTA Master Guide Specification, Rev. 0

9. If demolition and construction procedures change, or recorded readings indicate, vibrations at the designated structures approaching or exceeding the maximum threshold vibration limits as determined by Monitoring Engineer, full-time monitoring of vibrations shall occur throughout the duration of the demolition and construction.

10. When the allowable PPV is exceeded, the vibration-producing operation shall be immediately suspended, and alternative demolition and construction procedures must be evaluated. The contractor must not resume demolition or construction activities until a plan has been developed and approved by the Monitoring Engineer to reduce vibration levels to less than the maximum threshold.

END OF SECTION

2015-0027.04 LS Line – California Station All Stations Accessibility Program

Selective Structure Demolition 02 41 19 -1 CTA Specification, Rev. 2

SECTION 02 41 19

SELECTIVE STRUCTURE DEMOLITION

PART 1 GENERAL

1.01 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Special Conditions and Division 01 Specification Sections, apply to this section.

1.02 SUMMARY

A. This Section includes the demolition, removal and proper disposal of the items indicated on the drawings to be removed and any other items to be removed as required to facilitate the installation of the new work; including the following:

1. Remove existing station stairs and foundations.

2. Remove all other items as shown, indicated, or as otherwise required to facilitate the new construction.

3. Remove existing platform and framing as shown on plans to facilitate new construction of platform and framing.

4. Remove lattice bars on existing columns as required by plans to facilitate the rehabilitation of the columns

5. Remove platform canopy cladding as required for installation of new.

6. Remove drip pan and associated lighting at station plaza for installation of new.

B. Any salvagable items to be reused are to be removed carefully to avoid damage to the items, stored and protected during the work until re-installed; including the following:

1. Lattice bars on columns for Bents 164 & 163

2. Platform railings and platform lighting fixtures as indicated in the drawings.

3. Warming shelters as indicated in the drawings.

C. Protect existing to remain items at the roof from damage during the demolition and new work.

D. Contractor to avoid excessive concentrated loads beyond the 30 or 40 lbs per sq. ft. design live loads when storing material on the roof or floor, respectively.

E. The areas currently occupied must remain operational at all times unless approved otherwise. Coordinate any construction and/or staging activities that may impede normal CTA operations with the Authority including, but not limited to, any activity that generates excessive noise or airborne dust; interference with the Authority’s operations; access or use by the Authority’s customers or public; or the safety of employees, customers of the public.

The Contractor shall schedule the access to the work, use of the facility and other issues pertaining to the demolition and construction with the Authority to minimize disruption to the Authority’s operations and protect other areas of the building from damage and allow for safe passage of personnel.

F. All internal areas of the building, platforms, tracks, storage and equipment must be protected from water, debris, dust and damage at all times.

G. Provide safety protection system around work area to protect pedestrians, vehicles, customers and CTA personnel. When working at roofs or other raised areas, provide and

2015-0027.04 LS Line – California Station All Stations Accessibility Program

Selective Structure Demolition 02 41 19 -2 CTA Specification, Rev. 2 install an approved safety net system for the perimeter of the roof or floor to prevent debris and materials from falling on the tracks or other areas below. Safety net materials and installation to be submitted to the Authority for approval.

H. Work includes providing, installing, maintaining and removing temporary construction barriers as required during the course of the work. Work includes providing, installing and removing foot traffic barricades and control devices and signage as required during the course of the work and as approved by the Authority. Construction barriers to be of plywood and wood framing unless approved otherwise.

I. Contractor to provide a staging plan and safety plan for the Authority’s approval prior to starting the work. Coordinate with the Authority for staging areas.

J. Contractor shall schedule and coordinate all work with the Authority. Contractor shall submit and obtain approval on a process plan and phasing plan for all the work, including demolition prior to commencing work on site.

K. Contractor to refer to and adhere to the Drawings, Specifications and other documents provided for this Project.

L. Provide for flagging of trains as required, scheduled and approved by the Authority.

M. Contractor to protect the remainder of the existing structure during demolition and construction. Buildings must be protected from moisture and the elements. Any equipment inside buildings must be protected from dust, debris, moisture, the elements and other damage during the demolition and construction.

1. Protect all roof drains during demolition and construction at the roof level.

N. Coordinate and review the removal, relocation and/or reinstallation of electrical work and equipment, communication equipment, antennas and other specialty items with the Authority prior to beginning the work to maintain their functionality and avoid damage to the items or systems. Work may require re-routing utility lines as required to avoid the demolition and/or new construction.

O. Work may include patching and repairs to existing adjacent surfaces after removal or demolition. Work includes coring and cutting existing surfaces for installation of new plumbing piping and electrical conduit. Patch upon completion. Patching and repairs to match existing materials and finishes.

P. Related Sections: The following Sections contain requirements that relate to this Section:

1. Division 01 Section "Summary of Work".

2. Division 01 Section "Cutting and Patching" for cutting and patching procedures for selective demolition operations.

3. Division 02 Sections for environmental including asbestos abatement, lead abatement and soil remediation.

4. Division 06 Section "Carpentry" for material and construction requirements for temporary enclosures.

1.03 DEFINITIONS

A. Remove: Remove and legally dispose of items except those indicated to be reinstalled, salvaged, or to remain the Authority's property.

B. Remove and Salvage for Recycling: Items indicated to be removed and recycled are to be separated and arranged for recycling. Construction debris from demolition and construction waste materials are to be picked up by recycling waste haulers for recycling to the greatest

2015-0027.04 LS Line – California Station All Stations Accessibility Program

Selective Structure Demolition 02 41 19 -3 CTA Specification, Rev. 2 extent possible. As a minimum requirement, the Contractor to follow the City of Chicago Ordinance for recycling construction debris.

C. Remove and Salvage for Re-use: Items indicated to be removed and salvaged remain the Authority's property. Remove, clean, and pack or crate items to protect against damage.

Identify contents of containers and deliver to Authority's designated storage area.

D. Remove and Reinstall: Remove items indicated; clean, service, and otherwise prepare them for reuse; store and protect against damage. Reinstall items in the same locations or in locations indicated.

E. Existing to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by the Authority, items may be removed to a suitable, protected storage location during selective demolition and then cleaned and reinstalled in their original locations.

1.04 MATERIALS OWNERSHIP

A. Except for items or materials indicated to be reused, salvaged for re-use, reinstalled, or otherwise indicated to remain the Authority's property, demolished materials shall become the Contractor's property and shall be removed from the site and legally disposed of by the Contractor.

1.05 SUBMITTALS

A. General: Submit each item in this Article according to the conditions of the contract and Division 01 Specification Sections, for approval, unless otherwise indicated:

1. Proposed dust-control measures.

2. Proposed noise-control measures.

3. Schedule of demolition activities indicating the following:

a. For each location: Detailed sequence of demolition and removal work, with starting and ending dates for each activity.

b. Interruption of utility services.

c. Coordination for shutoff, capping, and continuation of utility services.

d. Detailed sequence of selective demolition and removal work to ensure uninterrupted progress of Authority's on-site operations.

e. Locations of temporary partitions, barriers and means of egress.

f. Foot traffic control or interruption. Closing of areas.

g. Shoring required.

h. Indicate how demolition work will avoid interruption of Authority’s on-site operations.

i. Demolition plan.

4. Proposed recycling procedures.

5. Inventory of items to be removed and salvaged for re-use.

B. Contractor shall submit a process plan and phasing plan for the demolition work.

C. Contractor shall submit proposed barricades, control devices and signage as required during the demolition and other work, including the proposed location of the barricades, control devices and signage, and the materials proposed to be used for the barricades, control devices and signage, for the Authority’s review and approval.

D. Provide the following, for information purposes:

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Selective Structure Demolition 02 41 19 -4 CTA Specification, Rev. 2

1. Photographs or video for information purposes, sufficiently detailed, of existing conditions of adjoining construction and site improvements that might be misconstrued as damage caused by selective demolition operations.

E. Provide the following at Project Closeout according to Division 01 Section "Project Closeout":

1. Record drawings; including identification and accurate locations of capped utilities and other subsurface structural, electrical, or mechanical conditions.

F. Provide written and dated documentation of the total amount of each different waste material, the amount of each sent to a recycling facility and the amount of each sent to a landfill.

Documentation shall be done on a daily basis. Indicate when and who the materials were picked up by and the name of the recycling facility the materials were sent to.

G. A demolition plan is to be submitted to the Authority for approval. Demolition shall not commence until the contractor has received written approval from the Authority.

1.06 QUALITY ASSURANCE

A. Regulatory Requirements: Comply with governing EPA notification regulations before starting selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction. Comply with City of Chicago Recycling Ordinance.

1.07 PROJECT CONDITIONS

A. Contractor required to survey existing conditions to verify all existing dimensions and conditions, locations of items and construction sizes of items and including conditions and limitations under which he is to do his work.

B. Contractor required to locate all existing utilities and other improvements, including utilities not exposed to view.

C. There will be no extras allowed to compensate Contractor for his failure to review and verify existing conditions and dimensions.

D. Demolition work to adhere to phasing plans for the project.

1.08 HAZARDOUS MATERIALS

A. The Authority has determined that various components to be removed or to be painted may contain lead paint. These components shall be removed according to all applicable federal, state and local regulations including. This shall include 29 CFR1926.62 and 29 CFR1910.1025 under the Occupational Safety and Health Act, Toxic Substance and Control Act, Resource Conservation and Recovery Act, Illinois Lead Poisoning Prevention Act (77 Illinois Adm. Code 845) and City of Chicago Code 11-4-2190 (Sandblasting, grinding and chemical washing of building, facilities or other structures; permit and notification requirements; performance standards for lead paint abatement; and disposal of debris.)

Contractor shall submit removal or mitigation plan to the Authority for approval.

B. For structures noted to be re-painted; existing paint that is loose, flaking, or otherwise not recommended to remain under the new paint system; is to be removed and, unless determined otherwise, should be assumed to contain lead. The following lead paint removal procedures shall be followed:

1. Work is governed by OSHA Regulations (worker protection) and NESHAP Regulations (visible emissions).

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2. City of Chicago Sandblasting, Grinding and Chemical Washing Ordinance is not applicable as long as hand scrapping removal method is used. Any mechanical methods or chemical removal would require City permits. CTA Facilities Maintenance shall coordinate with Environmental Affairs if Permits are required.

3. Employees conducting lead abatement shall be licensed by IDPH as a lead abatement worker and/or supervisor.

4. Lead paint work area shall be separated by caution tape or other appropriate barrier.

5. Work area shall be covered with appropriate non-skid (canvas) tarpaulin. This tarpaulin shall be cleaned with a HEPA vacuum after each shift or prior to moving tarpaulin. Paint chips and collected dust shall be bagged and disposed of as lead waste. Contact Environmental Affairs (312-681-3869) for disposal.

6. Employee shall wet impact surface to prevent dust during scraping activity.

7. Employees shall wear disposable coveralls during lead abatement activity. Coveralls shall be disposed as lead waste.

8. Employees shall wear appropriate respirators. CTA may conduit air sample (negative exposure assessment) to determine airborne lead dust exposure.

9. Employees shall maintain good personnel hygiene by washing their hands and face prior to eating, drinking, smoking, or leaving the site.

C. Other than the lead paint referred to above, the Contractor is not responsible to remove hazardous material that is encountered in the course of the work and not identified as hazardous material in the contract documents or otherwise addressed in the contract documents. If previously unidentified hazardous material is encountered, do not disturb the materials. Immediately notify the Authority for direction and arrangement for proper removal by licensed asbestos abatement workers and proper disposal.

D. Material containing lead based paint to be disposed of as hazardous waste, according to all applicable laws and regulations, unless approved otherwise, at Contractor’s expense and at approved land fills. Do not allow lead dust to contaminate other surfaces. The Contractor shall be responsible for handling, transporting, and disposing of any hazardous materials generated during the course of the project in accordance with all applicable federal, state and local environmental regulations and codes.

PART 2 PRODUCTS

2.01 REPAIR MATERIALS

A. Use repair materials identical to existing materials.

1. Where identical materials are unavailable or cannot be used for exposed surfaces, use materials that visually match existing adjacent surfaces to the fullest extent possible.

2. Use materials whose installed performance equals or surpasses that of existing materials.

PART 3 EXECUTION

3.01 EXAMINATION

A. Verify that those utilities indicated and approved to be disconnected and capped, have been properly done so.

B. Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required. All work indicated may vary based on actual field conditions and dimensions. Additional demolition and/or patching may be required depending on the condition of materials and construction upon opening up the existing construction and actual justification and/or attachment of the materials.

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Selective Structure Demolition 02 41 19 -6 CTA Specification, Rev. 2

C. When unanticipated mechanical, electrical, or structural elements that conflict with the intended function or design are encountered, investigate and measure the nature and extent of the conflict. Promptly submit a written report to the Authority.

D. Survey the condition of the building to determine whether removing any element might result in structural deficiency or unplanned collapse of any portion of the structure or adjacent structures during selective demolition.

E. Perform surveys as the work progresses to detect hazards resulting from selective demolition activities.

3.02 UTILITY SERVICES

A. Maintain existing utilities indicated to remain in service and protect them against damage during selective demolition operations.

1. Do not interrupt existing utilities serving occupied or operating facilities, except when authorized in writing by Authority and authorities having jurisdiction. Provide temporary services during interruptions to existing utilities, as acceptable to Authority and to governing authorities.

a. Provide not less than 72 hours' notice to Authority if shutdown of service is required during changeover.

B. Utility Requirements: Locate, identify, disconnect, and seal or cap off indicated utility services serving building to be selectively demolished.

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

2. Where utility services are required to be removed, relocated, or abandoned, provide bypass connections to maintain continuity of service to other parts of the building before proceeding with selective demolition.

3. Cut off pipe or conduit in walls or partitions to be removed. Cap, valve, or plug and seal the remaining portion of pipe or conduit after bypassing.

C. Utility Requirements: Refer to their respective sections of these specifications for shutting off, disconnecting, removing, and sealing or capping utility services. Do not start selective demolition work until utility disconnecting and sealing have been completed and verified in writing.

3.03 PREPARATION

A. Conduct demolition operations and remove debris to ensure minimum interference with adjacent occupied and used facilities.

1. Do not close or obstruct adjacent occupied or used facilities without permission from Authority and authorities having jurisdiction. Provide alternate routes around closed or obstructed foot traffic ways.

2. Do not block required exits or stairways.

B. Conduct demolition operations to prevent injury to people and damage to adjacent facilities to remain. Ensure safe passage of people around selective demolition area.

1. Protect walls, ceilings, floors, and other existing finish work that are to remain and are exposed during selective demolition operations.

2. Cover and protect equipment that has not been removed.

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C. Erect and maintain dust-proof partitions and temporary enclosures as required to limit dust and dirt migration and to separate areas from fumes and noise.

D. If required, provide and maintain shoring, bracing, or structural support to preserve stability and prevent movement, settlement, or collapse of building components during selective demolition and until new support is installed.

3.04 POLLUTION CONTROLS

A. Use temporary enclosures, and other suitable methods to limit the spread of dust and dirt.

Comply with governing environmental protection regulations.

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

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

3.05 SELECTIVE DEMOLITION

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

1. Proceed with selective demolition systematically.

2. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction. To minimize disturbance of adjacent surfaces, use hand or small power tools designed for sawing or grinding, not hammering and chopping. Temporarily cover openings to remain.

3. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

4. Do not use cutting torches until work area is cleared of flammable materials. At concealed spaces, such as duct and pipe interiors, verify condition and contents of hidden space before starting flame-cutting operations. Maintain portable fire-suppression devices during flame-cutting operations.

5. Maintain adequate ventilation when using cutting torches.

6. Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials and promptly dispose of off-site.

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

8. Dispose of demolished items and materials promptly. On-site storage or sale of removed items is prohibited.

9. Return elements of construction and surfaces to remain to condition existing before start of selective demolition operations.

B. Demolish masonry in small sections. Cut masonry at junctures with construction to remain, using power-driven masonry saw or hand tools; do not use power-driven impact tools.

Sawcut between existing masonry to be removed and to remain.

C. Demolish and remove existing construction according to the IDOT Standard Specifications for Road and Bridge Construction, Section 501, Removal of Existing Structures.

D. The Contractor is fully responsible for the means and method of demolition and the integrity and stability of the existing structure during demolition until the work is completed.

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E. Do not remove more of the existing structure than indicated on the drawings or as required.

Do not damage, mar, cut or deface the remaining structure to remain or material to be reused.

F. Verify all dimensions and existing conditions.

3.06 PATCHING AND REPAIRS

A. Promptly patch and repair holes and damaged surfaces caused by demolition operations to match adjacent construction.

B. Patching is specified in Division 01 Section "Cutting and Patching."

C. Where repairs to existing surfaces are required, patch to produce surfaces suitable for new materials. Patch to match existing, using materials to match existing.

1. Completely fill holes and depressions in existing masonry or concrete to remain with an approved masonry or concrete patching material, applied according to manufacturer's printed specifications.

D. Restore exposed finishes of patched areas and extend finish restoration into adjoining construction to remain in a manner that eliminates evidence of patching and refinishing.

E. Patch and repair floor, ceiling and wall surfaces in the new space where demolished walls or partitions extend one finished area into another. Provide a flush and even surface of uniform color and appearance.

1. Closely match texture and finish of existing adjacent surface.

2. Patch with durable seams that are as invisible as possible. Comply with specified tolerances.

3. Where patching smooth painted surfaces, extend final paint coat over entire unbroken surface containing the patch after the surface has received primer and second coat.

4. Where applicable, remove existing floor and wall finishes and replace with new materials, if necessary, to achieve uniform color and appearance.

F. Repairs, patching and replacements due to damage by the Contractor are the complete responsibility of the Contractor.

3.07 DISPOSAL OF DEMOLISHED MATERIALS

A. General: Promptly dispose of demolished materials, accumulated debris, rubbish, and other materials resulting from demolition operations. Do not allow demolished materials to accumulate on-site except as required for recycling operations.

B. Recycle construction debris from demolition operations and construction waste to the greatest extent possible. Contractor must follow City of Chicago Recycling of Construction Debris Ordinance as a minimum requirement.

C. Concrete, masonry, steel, wood, glass, cardboard and other materials shall be separated at the construction site and pick up shall be arranged with their respective recycling waste haulers for recycling of the individual waste materials.

D. Provide written and dated documentation of the total amount of each different waste material, the amount of each sent to a recycling facility and the amount of each sent to a landfill.

Documentation shall be done on a daily basis. Indicate when and who the materials were

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E. Disposal of non-recyclable debris: Transport materials that are not suitable for recycling off Authority's property and legally dispose of them.

3.08 CLEANING

A. Clean adjacent structures and improvements of dust, dirt, and debris caused by demolition operations. Return adjacent areas to condition existing prior to start of work.

B. Sweep the building broom clean on completion of selective demolition operation.

C. Change filters on air-handling equipment on completion of selective demolition operations.

END OF SECTION

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2015-0027.04 LS Line – California Station 100% Design Rev. 1 All Stations Accessibility Program August 2024

Historic Removal and Dismantling

CTA Specification, Rev ##

02 42 96 - 1

SECTION 02 42 96

HISTORIC REMOVAL AND DISMANTLING

PART 1 - GENERAL

1.1 WORK INCLUDED

A. Contractor shall provide all labor and materials for historic treatment procedures in the form of special types of selective demolition work for designated historic spaces, areas, and surfaces and the following specific work:

1. Dismantling and salvage of spanning guardrail panels, kick plates and rails for re use.

2. Dismantling and salvage of indicated portions of structure.

3. Removal and dismantling of indicated portions of structure and debris hauling.

4. Removal and dismantling of indicated site elements and debris hauling.

B. Related Sections:

1. Section 01 35 91 Historic Treatment Procedures

2. Section 02 41 19 Selective Structure Demolition

3. Section 05 03 71 Historic Decorative Metal Cleaning

4. Section 05 03 83 Historic Cast Iron Repair

1.2 DEFINITIONS

A. Dismantle: To disassemble or detach a historic item from a surface, or a non-historic item from a historic surface, using gentle methods and equipment to prevent damage to historic items and surfaces; disposing of items unless indicated to be salvaged or reinstalled.

B. Existing to Remain: Existing items that are not to be removed or dismantled, except to the degree indicated for performing required Work.

C. Remove: To take down or detach a non-historic item located within a historic space, area, or room, using methods and equipment to prevent damage to historic items and surfaces;

disposing of items unless indicated to be salvaged or reinstalled.

D. Retain: To keep existing items that are not to be removed or dismantled.

E. Salvage: To protect removed or dismantled items and deliver them to Commissioner ready for reuse.

1.3 INFORMATIONAL SUBMITTALS

A. Qualification Data: For historic removal and dismantling specialist and historic removal and…