W912QR21R0008_Specs_PhaseB_Vol7-0000.pdf

Solicitation For Construction of the New VA Medical Center (VAMC) Project in Louisville, KY

P2: 453413

Design-Bid-Build RFP

Specifications Phase B Volume 7 Div. 31-48

Certified Final Design

03 December 2020

W912QR21R0008

ARIMS: 200A

Disposition: Maintain for 15yrs after construction

W912QR21R0008_Specs_PhaseB_Vol7-0000

Replacement VA Medical Center Louisville, Kentucky

Project Managers

Cynthia K. Pozolo, FAIA URS/SmithGroup Joint Venture Project Manager SmithGroup 500 Griswold Street, Suite 1700 Detroit, Michigan 48226 t 313.983.3600

Randy L. Kirschner, AIA, NCARB URS/SmithGroup Joint Venture Project Manager

AECOM

277 Nationwide Blvd.

Columbus, Ohio 43215 t 614.464.4500

CERTIFIED FINAL

VA101CFM-P-0157/603-320

USACE P2 No. 453413

Phase B New Hospital Buildings Specifications 31-20-00 — 48-14-00 (Vol. 7)

03 December 2020

VA 603-320, P2 453413

Louisville VAMC Replacement Phase B

00 01 10-1

DEPARTMENT OF VETERANS AFFAIRS

TABLE OF CONTENTS

Section 00 01 10

VOLUME 1

DIVISION 00 - SPECIAL SECTIONS

00 01 07 Seals Page 00 01 10 Table of Contents 00 31 32 Geotechnical Data 00 31 32a 9-12-14 Report of Geotechnical Exploration Rev 1

00 31 32b Supplemental Recommendations Summary Report of Geotechnical

Exploration (REV 1) 01 November 2018

00 31 32c Louisville VA Hospital Geophysical Report 2 29 16

00 80 00.00

Special Provisions

00 80 00.01

Construction Project Sign Details

00 80 00.02

Communication Systems Matrix

00 80 00.03

LOD Matrix

00 80 00.04

Initial Facility Maintenance Data (COBie) Workbooks (FMDW)

– Provided under separate cover as .XLS spreadsheets (a-e)

00 80 00.04a

Hospital Building Medical Center

– Provided under separate cover as .XLS spreadsheets (a-e)

00 80 00.04b

Central Utility Plan (CUP) – Laundry

– Provided under separate cover as .XLS spreadsheets (a-e)

00 80 00.04c

North Parking Structure (Garage)

– Provided under separate cover as .XLS spreadsheets (a-e)

00 80 00.04d

Miscellaneous

– Provided under separate cover as .XLS spreadsheets (a-e)

00 80 00.04e

South Parking Structure (Garage)

– Provided under separate cover as .XLS spreadsheets (a-e)

00 80 00.05

Project Submittal Register – Phase A

00 80 00.06

Project Submittal Register – Phase B

00 80 00.07

Delegated Design List – Phase A

00 80 00.08

Delegated Design List – Phase B

DIVISION 01 - GENERAL REQUIREMENTS

01 32 01.00

Project Schedule

01 33 00.00

Submittal Procedures

01 35 26.00

Government Safety Requirements

00 01 10-2

01 35 26.01

FORM 16-1 Certificate of Compliance for LHE and Rigging

01 35 26.02

CELRL FORM 1259 Activity Hazards Analysis

01 43 39 Exterior Wall Mockups 01 45 00.15

Resident Management System Contractor Mode (RMS CM)

01 45 04.10

Contractor Quality Control

01 45 29 Testing Laboratory Services 01 45 35 Special Inspections 01 50 00 Temporary Construction Facilities and Controls 01 50 00.01 Federal Airport Authority (FAA) and/or Kentucky Airport Zoning

Commission (KAZC) Determination and Permit – Antenna Tower and Building

01 50 00.02 Federal Airport Authority (FAA) and/or Kentucky Airport Zoning Commission (KAZC) Determination and Permit – Elevated Water Tank

01 50 00.03 Property Transfers with KYTC 01 57 19.00

Temporary Environmental Controls and Permits

01 57 19.01

Permit Matrix

01 74 19 Construction and Demolition Waste Management 01 78 23 Operations and Maintenance Manuals 01 78 24.00

Facility Maintenance (FM)Data Requirements

01 79 00 Operations and Maintenance Training 01 81 11 Exterior Shell Air-Blast Performance Requirements 01 81 13 Sustainable Construction Requirements 01 91 00 General Commissioning Requirements 01 91 00a Appendix A Commissioning Status Tracking 01 91 00b Appendix B Commissioning Schedule Activities 01 91 18 Commissioning of Building Envelope Systems

DIVISION 02 – EXISTING CONDITIONS

NOT USED

DIVISION 03 – CONCRETE

03 30 00 Cast-in-Place Concrete 03 30 01 Cast-in-Place Concrete for Garage Structures 03 30 02 Cast-in-Place Concrete for Site Structures 03 41 33 Precast Structural Pretension Concrete 03 45 00 Precast Architectural Concrete 03 45 00.02 Precast Architectural Concrete (Parking Structure)

DIVISION 04 – MASONRY

04 05 13 Masonry Mortaring 04 05 16 Masonry Grouting 04 20 00 Unit Masonry

DIVISION 05 – METALS

05 12 00 Structural Steel Framing 05 12 13 Architecturally Exposed Structural Steel Framing 05 21 00 Steel Joist Framing

00 01 10-3

05 31 00 Steel Decking 05 36 00 Composite Metal Decking 05 40 00 Cold-Formed Metal Framing 05 43 13 Medical Equipment Support Systems 05 50 00 Metal Fabrications 05 50 00.02 Metal Fabrications (Parking Structure) 05 50 11 Metal Fabrications for Fall Protection Systems 05 51 00 Metal Stairs 05 52 20 Barrier Cable Systems 05 58 13 Column and Beam Covers 05 70 10 Decorative Metal Grilles 05 73 13 Glazed Decorative Railing Systems

DIVISION 06 – WOOD, PLASTICS AND COMPOSITES

06 10 00 Rough Carpentry 06 16 63 Sheathing 06 20 00 Finish Carpentry 06 61 16 Solid Surface Fabrications

VOLUME 2

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

07 05 23 Pressure Testing an Air Barrier System for Air Tightness 07 05 23a Appendix A Air Leakage Test Form Example 07 05 23b Appendix B Air Leakage Test Results Form 07 05 23c Appendix C Test Agency Qualifications Sheet 07 11 13 Bituminous Damproofing O7 13 00 Sheet Waterproofing 07 13 26 Self-Adhering Sheet Waterproofing 07 13 54 Thermoplastic Sheet Waterproofing O7 14 13 Hot Fluid-Applied Rubberized Asphalt Waterproofing 07 16 19 Metal Oxide Waterproofing 07 18 00.02 Traffic Coatings (Parking Structure) 07 18 13 Pedestrian Traffic Coatings 07 21 13 Thermal Insulation 07 22 00 Roof and Deck Insulation 07 27 27 Fluid-Applied Membrane Air Barriers, Vapor Retarding 07 40 00.02 Roofing and Siding Panels (Parking Structure) 07 42 00 Metal Wall Panels 07 42 13 16.02

Metal Plate Wall Panels (Parking Structure)

07 42 29 Terra Cotta Panel Rain Screen Systems 07 42 53 Glass Exterior Rain and Wind Screen Systems 07 42 53.02 Glass Exterior Rain and Wind Screen Systems (Parking Structure) 07 54 19 Polyvinyl-Chloride (PVC) Roofing 07 54 19a Appendix A Example RRO Report 07 60 00 Flashing and Sheet Metal 07 72 00 Roof Accessories 07 76 16 Roof Decking Pavers 07 81 00 Applied Fireproofing 07 81 23 Intumescent Fireproofing 07 84 00 Firestopping 07 92 00 Joint Sealants 07 95 13 Expansion Joint Cover Assemblies

00 01 10-4

07 95 13 19.02

Parking Deck Expansion Joint Cover Assemblies (Parking Structure)

DIVISION 08 - OPENINGS

08 11 13 Hollow Metal Doors and Frames 08 14 00 Interior Wood Doors 08 17 10 Integrated Door Assemblies 08 31 13 Access Doors and Frames 08 33 00 Coiling Doors and Grilles 08 33 00.02 Coiling Grilles (Parking Structure) 08 33 13 Coiling Counter Doors 08 34 53 Security Doors and Frames 08 34 59 Vault Doors and Day Gates 08 35 13.23 Accordion Folding Fire Doors 08 41 13 Aluminum-Framed Entrances and Storefronts 08 41 13.02 Aluminum-Framed Entrances and Storefronts (Parking Structure) 08 41 26.01 Custom All-Glass Wall and Door System 08 42 29.23 Sliding and Bi-Folding Automatic Entrances 08 42 33 Revolving Door Entrances 08 42 43 Intensive Care Unit (ICU) Entrances 08 44 13 Glazed Aluminum Curtain Walls 08 44 13.02 Glazed Aluminum Curtain Walls (Parking Structure) 08 51 13 Aluminum Windows 08 56 19 Pass Windows 08 56 53 Blast and Ballistic Resistant Windows 08 56 59 Service and Teller Window Units 08 56 66 Security Window Screens 08 62 00 Unit Skylights 08 63 00 Metal-Framed Skylights 08 71 00 Door Hardware 08 71 13 Automatic Door Operators 08 71 13.11 Low Energy Power Assist Door Operators 08 80 00 Glazing 08 88 16 Vision Control Glass 08 90 00 Louvers and Vents

DIVISION 09 – FINISHES

09 05 16 Subsurface Preparation for Floor Finishes 09 22 16 Non-Structural Metal Framing 09 23 00 Gypsum Plastering 09 24 00 Portland Cement Plastering 09 26 00 Veneer Plastering 09 29 00 Gypsum Board 09 30 13 Ceramic / Porcelain Tiling 09 51 00 Acoustical Ceilings 09 54 26 Linear Wood Wall and Ceiling Systems 09 54 81 Custom Interior Aluminum Beams and Fins 09 65 13 Resilient Base and Accessories 09 65 16 Resilient Sheet Flooring 09 65 16.33 Rubber Sheet Flooring 09 65 19 Resilient Tile Flooring 09 65 66 Resilient Athletic Flooring 09 66 16 Terrazzo Floor Tile 09 67 23.20 Resinous (Epoxy Based) With Vinyl Chip Broadcast (RES-2)

00 01 10-5

09 67 23.30 Resinous (Epoxy Based) High Performance Mortar Flooring (RES-3) 09 67 23.40 Resinous Poured in Place Resilient Flooring (RES-4) 09 67 23.50 Resinous Terrazzo Flooring (RES-5) 09 67 23.60 Resinous Urethane and Epoxy Mortar Flooring (RES-6A and RES-6B) 09 67 23.70 Epoxy Floor Coating (EPY-01, EPY-02) 09 68 13 Tile Carpeting 09 69 00 Access Flooring 09 77 01 Interior Glass Wall Panel System 09 77 14 Wood Veneer Acoustic Wall Panels 09 84 33 Sound-Absorbing Wall Units 09 91 00 Painting 09 96 59 Resinous Specialty Glazed Coating Systems for Walls, Ceilings, Wallboard, and Block CMU (RES-W1, RES-W2) 09 96 59.10 High Build Glazed Specialty Coating (SC-01)

VOLUME 3

DIVISION 10 – SPECIALTIES

10 11 13 Chalkboards and Markerboards 10 11 23 Tackboards 10 13 00 Directories 10 14 00 Signage 10 21 13 Toilet Compartments 10 21 16 Shower and Dressing Compartments 10 21 23 Cubicle Curtain Tracks 10 22 13 Interior Wire Mesh Partitions 10 22 13.02 Exterior Wire Mesh Partitions (Parking Structure) 10 22 39 Folding Panel Partitions 10 22 39.01 Automatic Operable Vertically Retractable Acoustic Wall 10 25 13 Patient Bed Service Walls (PBSW) 10 26 00 Wall and Door Protections 10 26 41 Bullet Resistant Panels 10 28 00 Toilet Bath and Laundry Accessories 10 44 13 Fire Extinguisher Cabinets 10 44 13.02 Fire Extinguisher Cabinets (Parking Structure) 10 55 00.16 Private-Delivery Postal Specialties 10 56 26 Manual Mobile and Fixed Shelving 10 75 00 Flagpoles 10 82 19 Exterior Acoustical Barrier Screen Walls

DIVISION 11 – EQUIPMENT

11 05 12 General Motor Requirements for Equipment 11 06 00 Medical Equipment Schedule 11 06 01 Project Room Contents Report 11 08 00 Commissioning of Equipment 11 11 00 Laundry Equipment 11 12 00 Parking Control Equipment - Parking/Barrier Gate Operators 11 12 00.02 Parking Control Equipment (Parking Structure) 11 13 00 Loading Dock Equipment 11 17 36 Package Transfer Units 11 24 11 Horizontal Lifeline Fall Protection Systems 11 24 14 Suspended Façade Access Equipment 11 40 11 Custom Fabricated Foodservice Equipment 11 40 21 Foodservice Equipment - Utility Distribution System 11 41 00 Food Storage Equipment

00 01 10-6

11 41 21 Walk-In Coolers and Freezers 11 44 00 Food Cooking Equipment 11 45 00 Miscellaneous Food Service Equipment 11 48 00 Cleaning and Disposal Equipment 11 53 00 Laboratory Equipment 11 53 13 Laboratory Fume Hoods 11 53 53 Biological Safety Cabinets and Laminar Airflow Workstations 11 53 61 Custom Fabricated Laboratory Equipment 11 71 00 Healthcare Equipment 11 71 01 Medical Washing and Sterilizing Equipment 11 71 02 Laboratory Washing and Sterilizing Equipment 11 73 00 Ceiling Mounted Patient Lift System 11 73 11 Patient ICU Service Boom Systems 11 74 00 Dental Equipment 11 78 00 Mortuary Equipment 11 78 13 Mortuary Refrigerators 11 82 00 Waste Handling Equipment

DIVISION 12 – FURNISHINGS

12 24 00 Window Shades 12 24 00.01 Motorized Window Shades 12 31 00 Manufactured Metal Casework 12 32 00 Manufactured Wood Casework 12 35 53 Adaptable Laboratory Casework Systems 12 36 00 Laboratory Countertops and Accessories 12 36 61.16 Solid Surfacing Countertops 12 48 13 Entrance Floor Mats

DIVISION 13 - SPECIAL CONSTRUCTION

13 01 00 Radiofrequency (RF) MRI Shielding System 13 01 01 DC MRI Magnetic Shielding System 13 05 41 Seismic Restraint Requirements for Non-Structural Components 13 21 13.34 Automatic Clean Room Swinging Doors and Fixed Windows 13 21 13.38 Clean Room Pass-Through Chambers 13 21 29 Constant Temperature Rooms 13 49 00 Radiation Protection 13 49 00 A Radiation Shielding Plan Review Report (Level 1) 13 49 00 B Radiation Shielding Plan Review Report (Level 2) 13 49 00 C Radiation Shielding Plan Review Report (Level 3) 13 49 00 D Radiation Shielding Plan Review Report (Level 4) 13 49 23 AC ELF Magnetic Shielding Systems 13 49 25 Main Computer Room Shielding

DIVISION 14– CONVEYING EQUIPEMENT

14 08 00 Commissioning of Conveying Equipment 14 21 00 Electric Traction Elevators 14 24 00 Hydraulic Elevators 14 91 33 Laundry and Linen Chutes 14 91 82 Trash Chutes 14 92 00 Pneumatic Tube System

DIVISION 21- FIRE SUPPRESSION

21 08 00 Commissioning of Fire Suppression System

00 01 10-7

21 12 00 Manual Dry Standpipe Systems 21 13 13 Wet-Pipe Sprinkler Systems 21 13 16 Dry-Pipe Sprinkler Systems 21 22 00 Clean Agent Fire Suppression Systems 21 30 13 Electric-Driven, Fire Pumps

VOLUME 4

DIVISION 22 – PLUMBING

22 05 11 Common Work Results for Plumbing 22 05 12 General Motor Requirements for Plumbing Equipment 22 05 19 Meters and Gages for Plumbing Piping 22 05 23 General-Duty Valves for Plumbing Piping 22 05 33 Heat Tracing for Plumbing Piping 22 07 11 Plumbing Insulation 22 08 00 Commissioning of Plumbing Systems 22 08 00a Division 22 Sample PFC 22 08 00b Division 22 Sample FPT 22 11 00 Facility Water Distribution 22 11 23 Domestic Water Pumps 22 13 00 Facility Sanitary and Vent Piping 22 13 23 Sanitary Waste Interceptors 22 13 29 Sanitary Sewerage Pumps 22 14 00 Facility Storm Drainage 22 14 29 Sump Pumps 22 15 00 General Service Compressed-Air Systems 22 20 00 Facility Natural-Gas Piping 22 31 11 Water Softeners 22 33 00 Electric Domestic Water Heaters 22 35 00 Domestic Water Heat Exchangers 22 40 00 Plumbing Fixtures 22 61 13.74 Dental Compressed-Air Piping 22 61 19.74 Dental Compressed-Air Equipment 22 62 00 Vacuum Systems for Laboratory and Healthcare Facilities 22 62 19.74 Dental Vacuum and Evacuation Equipment 22 63 00 Gas Systems for Laboratory and Healthcare Facilities 22 66 00 Chemical-Waste Systems for Laboratory and Healthcare Facilities 22 67 19.16 Reverse-Osmosis Water Equipment 22 70 00 Facility Fuel Oil Systems

VOLUME 5

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

23 05 10 Common Work Results for Boiler Plant and Steam Generation 23 05 11 Common Work Results for HVAC 23 05 12 General Motor Requirements for HVAC and Steam Generation

Equipment 23 05 14 Variable Frequency Drives 23 05 41 Noise and Vibration Control for HVAC Piping and Equipment 23 05 51 Noise and Vibration Control for Boiler Plant 23 05 93 Testing, Adjusting, and Balancing for HVAC 23 07 11 HVAC and Boiler Plant Insulation 23 08 00 Commissioning of HVAC Systems 23 08 00a Division 23 Sample PFC 23 08 00b Division 23 Sample FPT 23 08 11 Demonstrations and Tests for Boiler Plant

00 01 10-8

23 08 11a Attachment A VHA Boiler and Associated Plant Safety Device Testing Manual Fifth Edition

23 08 11b Attachment B Appendix B of VHA Directive 1810 23 09 11 Instrumentation and Control for Boiler Plant 23 09 23 Direct-Digital Control System for HVAC 23 21 11 Boiler Plant Piping Systems 23 21 13 Hydronic Piping 23 21 23 Hydronic Pumps 23 22 13 Steam and Condensate Heating Piping 23 22 23 Steam Condensate Pumps 23 23 00 Refrigerant Piping 23 25 00 HVAC Water Treatment 23 31 00 HVAC Ducts and Casings 23 34 00 HVAC Fans 23 35 03 Dryer Vent Exhaust System 23 36 00 Air Terminal Units 23 37 00 Air Outlets and Inlets 23 40 00 HVAC Air Cleaning Devices 23 50 11 Boiler Plant Mechanical Equipment 23 51 00 Breechings, Chimneys, and Stacks 23 52 39 Fire-Tube Boilers 23 64 00 Packaged Water Chillers 23 64 20 Heat Recovery Chillers 23 65 00 Cooling Towers 23 73 00 Indoor Central-Station Air-Handling Units 23 81 00 Decentralized Unitary HVAC Equipment 23 81 23 Computer-Room Air-Conditioners 23 81 43 Air-Source Unitary Heat Pumps 23 82 00 Convection Heating and Cooling Units 23 82 16 Air Coils

DIVISION 25 – INTEGRATED AUTOMATION

25 10 10 Advanced Utility Metering System 25 08 00 Commissioning of Advanced Utility Metering Systems

VOLUME 6

DIVISION 26 – ELECTRICAL

26 05 11 Requirements for Electrical Installations 26 05 13 Medium-Voltage Cables 26 05 19 Low-Voltage Electrical Power Conductors and Cables 26 05 26 Grounding and Bonding for Electrical Systems 26 05 33 Raceway and Boxes for Electrical Systems 26 05 36.26 Wireways for Radiology Equipment 26 05 41 Underground Electrical Construction 26 05 73 Overcurrent Protective Device Study 26 08 00 Commissioning of Electrical Systems 26 08 00a Division 26 Sample PFC 26 08 00b Division 26 FPT 26 09 23 Lighting Controls 26 11 16 Secondary Unit Substations 26 13 13 Medium-Voltage Circuit Breaker Switchgear 26 13 16 Medium-Voltage Fusible Interrupter Switches 26 20 11 Isolated Power Systems 26 22 00 Low-Voltage Transformers

00 01 10-9

26 23 00 Low-Voltage Switchgear 26 23 13 Generator Paralleling Controls 26 24 13 Distribution Switchboards 26 24 16 Panelboards 26 24 19 Motor Control Centers 26 25 11 Busways 26 26 10 Emergency Power Off System 26 27 26 Wiring Devices 26 29 11 Motor Controllers 26 29 21 Enclosed Switches and Circuit Breakers 26 32 13 Engine Generators 26 33 53 Static Uninterruptible Power Supply 26 36 23 Automatic Transfer Switches 26 41 00 Facility Lightning Protection 26 43 13 Surge Protective Devices 26 51 00 Interior Lighting 26 56 00 Exterior Lighting

DIVISION 27 – COMMUNICATIONS

27 05 11 Requirements for Communications Installations 27 05 26 Grounding and Bonding for Communications Systems 27 05 33 Raceways and Boxes for Communications Systems 27 08 00 Commissioning of Communications Systems 27 10 00 Control, Communication and Signal Wiring 27 11 00 Telecommunications Room Fittings 27 15 00 Communications Structured Cabling 27 41 31 Cable Television Distribution System 27 51 16 Public Address (Overhead Paging) System 27 51 23 Clinical Intercom 27 51 25 Limited Area Networked Sound Masking System 27 52 23 Nurse Call and Code Blue System 27 53 13 Clock Systems 27 53 19 Distributed Antenna System

DIVISION 28 – ELECTRONIC SAFETY AND SECURITY

28 05 00 Common Work Results for Electronic Safety and Security 28 05 13 Conductors and Cables for Electronic Safety and Security 28 05 26 Grounding and Bonding for Electronic Safety and Security 28 05 28.33 Conduits and Backboxes for Electronic Safety and Security 28 08 00 Commissioning of Electronic Safety and Security Systems 28 13 00 Physical Access Control and Security Management System 28 13 53 Security Access Detection 28 16 00 Intrusion Detection System 28 23 00 Video Surveillance 28 26 00 Electronic Personal Protection System 28 31 00 Fire Detection and Alarm 28 52 31 Emergency Communications Systems

VOLUME 7

DIVISION 31 – EARTHWORK

31 20 00 Earthwork 31 23 19 Dewatering 31 23 23.33 Flowable Fill

00 01 10-10

31 31 16 Termite Control 31 63 26 Drilled Pier 31 68 14 Soil and Rock Anchors for VA Medical Center (Building B)

Structure

DIVISION 32 – EXTERIOR IMPROVEMENTS

32 05 23 Cement and Concrete for Exterior Improvements 32 12 16 Asphalt Paving 32 14 13 Precast Concrete Unit Paving 32 17 13 Parking Bumpers 32 17 23 Pavement Markings 32 17 26 Tactile Warning Surfacing 32 31 13.02 Chain Link Fences and Gates (Parking Structure) 32 31 53 Perimeter Security Fences and Gates 32 33 13 Exterior Site Furnishings 32 84 00 Planting Irrigation 32 90 00 Planting 32 97 00 Vegetated Roof Assemblies

DIVISION 33 – UTILITIES

33 08 00 Commissioning of Site Utility Systems 33 10 00 Water Utilities 33 16 19 Elevated Water Storage Tank Structure 33 16 23 Ground Water Storage Tank Structure 33 30 00 Sanitary Sewer Utilities 33 40 00 Storm Sewer Utilities 33 40 13 Stormwater Pump Station 33 46 13 Foundation Drainage 33 51 00 Natural-Gas Distribution

DIVISION 34 – TRANSPORTATION

34 08 00 Commissioning of Active Vehicle Barriers 34 71 13 Vehicle Barriers 34 75 13.13 Active Vehicle Barriers

DIVISION 48 – ELECTRICAL POWER GENERATION

48 08 00 Commissioning of Solar Energy Electrical Power Generation Systems 48 14 00 Solar Energy Electrical Power Generation Systems

31 20 00 - 1

SECTION 31 20 00

EARTHWORK

PART 1 - GENERAL

1.1 DESCRIPTION OF WORK:

A. This section specifies the requirements for furnishing all equipment, materials, labor, tools, and techniques for earthwork including, but not limited to, the following:

1. Site preparation.

2. Excavation.

3. Filling and backfilling.

4. Grading.

5. Soil Disposal.

6. Clean Up.

1.2 DEFINITIONS:

A. Unsuitable Materials:

1. Fills: Topsoil; frozen materials; construction materials and materials subject to decomposition; clods of clay and stones larger than 75 mm (3 inches); organic material, including silts, which are unstable; and inorganic materials, including silts, too wet to be stable and any material with a liquid limit and plasticity index exceeding 40 and 15 respectively. Unsatisfactory soils also include satisfactory soils not maintained within 2 percent of optimum moisture content at time of compaction, as defined by ASTM D698.

2. Existing Subgrade (Except Footing Subgrade): Same materials as

1.2.A.1, that are not capable of direct support of slabs, pavement, and similar items with possible exception of improvement by compaction, proofrolling, or similar methods.

3. Existing Subgrade (Footings Only): Same as paragraph 1, but no fill or backfill. If materials differ from design requirements, excavate to acceptable strata subject to Contracting Officer's approval.

B. Building Earthwork: Earthwork operations required in area enclosed by a line located 1500 mm (5 feet) outside of principal building perimeter.

It also includes earthwork required for auxiliary structures and buildings.

C. Trench Earthwork: Trenchwork required for utility lines.

31 20 00 - 2

D. Site Earthwork: Earthwork operations required in area outside of a line located 1500 mm (5 feet) outside of principal building perimeter and within new construction area with exceptions noted above.

E. Degree of compaction: Degree of compaction is expressed as a percentage of maximum density obtained by laboratory test procedure. This percentage of maximum density is obtained through use of data provided from results of field test procedures presented in ASTM D1556, ASTM

D2167, and ASTM D6938.

F. Fill: Satisfactory soil materials used to raise existing grades. In the

Construction Documents, the term “fill” means fill or backfill as appropriate.

G. Backfill: Soil materials or controlled low strength material used to fill an excavation.

H. Unauthorized excavation: Removal of materials beyond indicated sub-grade elevations or indicated lines and dimensions without written authorization by the Contracting Officer. No payment will be made for unauthorized excavation or remedial work required to correct unauthorized excavation.

I. Authorized additional excavation: Removal of additional material authorized by the Contracting Officer based on the determination by the

Government’s soils testing agency that unsuitable bearing materials are encountered at required sub-grade elevations. Removal of unsuitable material and its replacement as directed will be paid on basis of

Conditions of the Contract relative to changes in work.

J. Subgrade: The undisturbed earth or the compacted soil layer immediately below granular sub-base, drainage fill, or topsoil materials.

K. Structure: Buildings, foundations, slabs, tanks, curbs, mechanical and electrical appurtenances, or other man-made stationary features constructed above or below the ground surface.

L. Borrow: Satisfactory soil imported from off-site for use as fill or backfill.

M. Drainage course: Layer supporting slab-on-grade used to minimize capillary flow of pore water.

N. Bedding course: Layer placed over the excavated sub-grade in a trench before laying pipe. Bedding course shall extend up to the springline of the pipe.

31 20 00 - 3

O. Sub-base Course: Layer placed between the sub-grade and base course for asphalt paving or layer placed between the sub-grade and a concrete pavement or walk.

P. Utilities include on-site underground pipes, conduits, ducts, and cables as well as underground services within buildings.

Q. Debris: Debris includes all materials located within the designated work area not covered in the other definitions and shall include but not be limited to items like vehicles, equipment, appliances, building materials or remains thereof, tires, any solid or liquid chemicals or products stored or found in containers or spilled on the ground.

R. Contaminated soils: Soil that contains contaminates as defined and determined by the Contracting Officer or the Government’s testing agency.

S. Plow Zone: Surficial layer of soft to medium stiff soil 12 to 18 inches thick with soft soil organics from repeated deep plowing during previous agricultural activities. Some undercutting of soils may be necessary prior to fill placement

1.3 RELATED WORK:

A. Materials testing and inspection during construction: Section 01 45 29, TESTING LABORATORY SERVICES.

B. Government Safety requirements : Section 01 35 26.00 06

C. Protection of existing utilities, fire protection services, existing equipment, roads, and pavements:

1. Section 00 80 00.00 06, SPECIAL PROVISIONS.

2. Section 01 50 00, TEMPORARY CONSTRUCTION FACILITIES AND CONTROLS.

D. Subsurface Investigation: Section 00 31 32, GEOTECHNICAL DATA.

E. Permits: Section 01 57 19.00 06, TEMPORARY ENVIRONMENTAL CONTROLS AND

PERMITS.

F. Construction Dewatering: Section 31 23 19, DEWATERING.

G. Foundation system requirements: Section 31 63 26, DRILLED PIER.

H. Paving sub-grade requirements:

1. Section 32 12 16, ASPHALT PAVEMENT.

2. Section 32 05 23, CEMENT AND CONCRETE FOR EXTERIOR IMPROVEMENTS.

I. Rock anchors: Section 31 68 14, SOIL AND ROCK ANCHORS.

1.4 CLASSIFICATION OF EXCAVATION:

A. Unclassified Excavation: Removal and disposal of pavements and other man-made obstructions visible on surface; utilities, and other items including underground structures indicated to be demolished and

31 20 00 - 4 removed; together with any type of materials regardless of character of material and obstructions encountered.

B. Classified Excavation: Removal and disposal of all material not defined as Rock or Unclassified Excavation.

C. Rock Excavation:

1. Trenches and Pits: Removal and disposal of solid, homogenous, interlocking crystalline material with firmly cemented, laminated, or foliated masses or conglomerate deposits that cannot be excavated with a late-model, track-mounted hydraulic excavator; equipped with a 1050 mm (42 inch) wide, short-tip-radius rock bucket; rated at not less than 120 kW (162 hp) flywheel power with bucket-curling force of not less than 126 kN (28,350 lbf) and stick-crowd force of not less than 85 kN (19,120 lbf); measured according to SAE J-1179.

Trenches in excess of 3000 mm (10 feet) wide and pits in excess of

9000 mm (30 feet) in either length or width are classified as Open

Excavation.

a. Trench rock for open excavation shall also be any other material defined as such by the Project Geotechnical Engineer during on-site observations, including any existing concrete slabs, foundations, or large pieces of concrete debris greater than one (1) cubic yard in size and not shown on the drawings and discovered below grade. Rocks, boulders, or concrete debris smaller than one (1) cubic yard shall be classified as common excavation and shall be removed as a part of the Base

Proposal price.

2. Open Excavation: Removal and disposal of solid, homogenous, interlocking crystalline material firmly cemented, laminated, or foliated masses or conglomerate deposits that cannot be dislodged and excavated with a late-model, track-mounted loader; rated at not less than 120 kW (162 hp) flywheel power and developing a minimum of

126 kN (28,350 lbf) breakout force; measured according to SAE J-732.

a. Bulk rock for trench excavation shall also include any existing concrete slabs, foundations, or large pieces of concrete debris not shown on the drawings and discovered below grade; or any other material defined as bulk rock by the

Project Geotechnical Engineer during on-site observations.

3. Other types of materials classified as rock are unstratified masses, conglomerated deposits and boulders of rock material exceeding 0.76

31 20 00 - 5 m3 (1 cubic yard) for open excavation, or 0.57 m3 (3/4 cubic yard) for footing and trench excavation that cannot be removed by rock excavating equipment equivalent to the above in size and performance ratings, without systematic drilling, ram hammering, ripping, or blasting, when permitted.

4. Blasting: Not permitted.

1.5 NOT USED

1.6 MEASUREMENT AND PAYMENT FOR ROCK EXCAVATION:

A. Measure and pay for rock excavation by the number of cubic yards of acceptably excavated rock material. Measure the material in place.

Provide the measurement to include all authorized over-depth rock excavation as determined by the Contracting Officer. Compute quantities by Registered Professional Land Surveyor or Registered Civil

Engineer, specified in Section 01 45 04.10 06, CONTRACTOR QUALITY

CONTROL. Do not measure quantities beyond the following limits:

1. 600 mm (24 inches) from outside face of concrete work for which forms are required, except for footings.

2. 300 mm (12 inches) from outside of perimeter of formed footings.

3. 150 mm (6 inches) below bottom of pipe and not more than pipe diameter plus 600 mm (24 inches) in width for pipe trenches.

4. From outside dimensions of concrete work for which no forms are required (trenches, conduits, and similar items not requiring forms).

B. Payment: No separate payment shall be made for rock excavation quantities. Contract price and time will be adjusted for overruns or underruns in accordance with FAR CLAUSE 52.211-18, Variations in

Estimated Quantities.

1.7 SUBMITTALS:

A. Submit in accordance with Section 01 33 00.00 06 SUBMITTAL PROCEDURES.

B. Rock Excavation Report:

1. Certification of rock quantities excavated.

2. Excavation method.

3. Labor.

4. Equipment.

5. Land Surveyor's or Civil Engineer's name and official registration stamp.

6. Plot plan showing elevation.

31 20 00 - 6

C. Furnish to Contracting Officer:

1. Soil samples.

a. Classification in accordance with ASTM D2487 for each on-site or borrow soil material proposed for fill, backfill, engineered fill, or structural fill.

b. Laboratory compaction curve in accordance with ASTM D698 for each on site or borrow soil material proposed for fill, backfill, engineered fill, or structural fill.

c. Test reports for compliance with ASTM D2940 requirements for subbase material.

d. Pre-excavation photographs and videotape in the vicinity of the existing structures to document existing site features, including surfaces finishes, cracks, or other structural blemishes that might be misconstrued as damage caused by earthwork operations.

e. The Contractor shall submit a scale plan daily that defines the location, limits, and depths of the area excavated.

2. Contractor shall submit procedure and location for disposal of unused satisfactory material. Proposed source of borrow material.

Notification of encountering rock in the project. Advance notice on the opening of excavation or borrow areas. Advance notice on shoulder construction for rigid pavements.

1.8 APPLICABLE PUBLICATIONS:

A. Publications listed below form a part of this specification to extent referenced. Publications are referenced in text by basic designation only.

B. American Association of State Highway and Transportation Officials

(AASHTO):

T99-10..................Standard Method of Test for Moisture-Density

Relations of Soils Using a 2.5 kg (5.5 lb)

Rammer and a 305 mm (12 inch) Drop

T180-10.................Standard Method of Test for Moisture-Density

Relations of Soils using a 4.54 kg (10 lb)

Rammer and a 457 mm (18 inch) Drop

C. American Society for Testing and Materials (ASTM):

C33-03..................Concrete Aggregate

D448-08.................Standard Classification for Sizes of Aggregate for Road and Bridge Construction

31 20 00 - 7

D698-07e1...............Standard Test Method for Laboratory Compaction

Characteristics of Soil Using Standard Effort

(12,400 ft. lbf/ft3 (600 kN m/m3))

D1140-00................Amount of Material in Soils Finer than the No.

200 (75-micrometer) Sieve

D1556-07................Standard Test Method for Density and Unit

Weight of Soil in Place by the Sand Cone Method

D1557-09................Standard Test Methods for Laboratory Compaction

Characteristics of Soil Using Modified Effort

(56,000 ft-lbf/ft3 (2700 kN m/m3))

D2167-08................Standard Test Method for Density and Unit

Weight of Soil in Place by the Rubber Balloon

Method

D2487-11................Standard Classification of Soils for

Engineering Purposes (Unified Soil

Classification System)

D2940-09................Standard Specifications for Graded Aggregate

Material for Bases or Subbases for Highways or

Airports

D6938-10................Standard Test Method for In-Place Density and

Water Content of Soil and Soil-Aggregate by

Nuclear Methods (Shallow Depth

E. Society of Automotive Engineers (SAE):

J732-07.................Specification Definitions - Loaders

J1179-08................Hydraulic Excavator and Backhoe Digging Forces

PART 2 - PRODUCTS

2.1 MATERIALS:

A. General: Provide borrow soil material when sufficient satisfactory soil materials are not available from excavations.

B. Fills: Material in compliance with ASTM D2487 Soil Classification

Groups GW, GP, GM, SW, SP, SM, SC, and ML, or any combination of these groups; free of rock or gravel larger than 75 mm (3 inches) in any dimension, debris, waste, frozen materials, vegetation, and other deleterious matter. Material approved from on site or off site sources having a minimum dry density of 1760 kg/m3 (110 pcf), a maximum

Plasticity Index of 15, and a maximum Liquid Limit of 40.

C. Engineered Fill: Naturally or artificially graded mixture of compliance with ASTM D2487 Soil Classification Groups GW, GP, GM, SW, SP, SM, and

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SC, or any combination of these groups, or as approved by the Engineer or material with at least 90 percent passing a 37.5-mm (1 1/2-inch) sieve and not more than 12 percent passing a 75-µm (No. 200) sieve, per

ASTM D2940;.

D. Bedding: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D2940; except with 100 percent passing a 25 mm (1 inch) sieve and not more than 8 percent passing a 75-μm (No. 200) sieve.

E. Drainage Fill: Washed, narrowly graded mixture of crushed stone, or crushed or uncrushed gravel; ASTM D448; coarse-aggregate grading Size

57; with 100 percent passing a 37.5 mm (1 1/2-inch) sieve and 0 to 5 percent passing a 2.36 mm (No. 8) sieve.

F. Granular Fill:

1. Under concrete slab, - granular fill shall consist of clean, poorly graded crushed rock, crushed gravel, or placed beneath a building slab with or without a vapor barrier to cut off the capillary flow of pore water to the area immediately below. Granular fill beneath building slabs to be in accordance with the requirements of Kentucky

Department of Highways Specification Section 805, Dense Graded

Aggregate (DGA).

2. Bedding for sanitary and storm sewer pipe, crushed stone or gravel graded from 13 mm (1/2 inch) to 4.75 mm (No 4), per ASTM D2940.

G.

H. Buried Warning and Identification Tape: Polyethylene plastic and metallic core or metallic-faced, acid- and alkali-resistant, corrosion resistant warning tape manufactured specifically for warning and identification of buried utility lines. Minimum thickness of the tape shall be 0.102 mm (0.004 inch). Tape shall have a minimum strength of

10.3 MPa (1500 psi) lengthwise and 8.6 MPa (1250 psi) crosswise. Tape shall be manufactured with integral wires, foil backing, or other means of enabling detection by a metal detector when tape is buried up to 0.9 m (3 feet) deep. Provide tape on rolls, 3 inch minimum width, color coded as specific below for the intended utility with warning and identification imprinted in bold black letters continuously over the entire tape length. Warning and identification to read, “CAUTION, BURIED (intended service) LINE BELOW” or similar wording. Color and printing shall be permanent, Unaffected by moisture or soil. Warning tape color codes:

31 20 00 - 9

Red: Electric

Yellow: Gas, Oil, Dangerous Materials

Orange: Telephone and Other Communications

Blue: Water Systems

Green: Sewer Systems

White: Steam Systems

Gray: Compressed Air

I. Warning Tape for Metallic Piping: Acid and alkali-resistant polyethylene plastic tape conforming to the width, color, and printing requirements specified above.

J. Warning Tape for Non-Metallic Piping: Polyethylene plastic tape conforming to the width, color, and printing requirements specified above.

K. Detection Wire For Non-Metallic Piping: Detection wire shall be

Insulated single strand, solid copper with a minimum of 12 AWG.

PART 3 - EXECUTION

3.1 SITE PREPARATION:

A. Clearing: Clear within limits of earthwork operations as shown. Work includes removal of trees, shrubs, fences, foundations, incidental structures, paving, debris, trash, and other obstructions. Remove materials from site and legally dispose.

B. Grubbing: Remove stumps and roots 75 mm (3 inch) and larger diameter.

Undisturbed sound stumps, roots up to 75 mm (3 inch) diameter, and nonperishable solid objects a minimum of 900 mm (3 feet) below subgrade may be left.

C. Trees and Shrubs: Remove as indicated on the plans. Remove stumps and roots as described in 3.1.B – Grubbing. Box, and otherwise protect from damage, existing trees and shrubs which are not shown to be removed in construction area. Immediately repair damage to existing trees and shrubs by trimming, cleaning and painting damaged areas, including roots, in accordance with standard industry horticultural practice for the geographic area and plant species. Do not store building materials closer to trees and shrubs, that are to remain, than farthest extension of their limbs. Fill depressions caused by tree root removals with engineered fill.

D. Stripping Topsoil: Strip topsoil from within limits of earthwork operations as specified. Remove topsoil from site.

31 20 00 - 10

E. Abandoned Structures and Utilities: Previous farmhouse and structures existed in norther portion of the site. If encountered, fully remove foundations, slabs, utilities and fill from the site.

F. Lines and Grades: Registered Professional Land Surveyor or Registered

Civil Engineer, specified in Section 01 45 04.10 06, CONTRACTOR QUALITY

CONTROL, shall establish lines and grades.

1. Grades shall conform to elevations indicated on plans within the tolerances herein specified. Generally grades shall be established to provide a smooth surface, free from irregular surface changes.

Grading shall comply with compaction requirements and grade cross sections, lines, and elevations indicated. Where spot grades are indicated the grade shall be established based on interpolation of the elevations between the spot grades while maintaining appropriate transition at structures and paving and uninterrupted drainage flow into inlets.

2. Locations of existing and proposed elevations indicated on plans , except spot elevations, are approximate. Proposed spot elevations and contour lines have been developed utilizing the existing conditions survey. Contractor is responsible to notify Contracting

Officer of any differences between existing elevations shown on plans and those encountered on site by Surveyor/Engineer described above. Notify Contracting Officer of any differences between existing or constructed grades, as compared to those shown on the plans.

3. Subsequent to establishment of lines and grades, Contractor will be responsible for any additional cut and/or fill required to ensure that site is graded to conform to elevations indicated on plans.

4. Finish grading is specified in Section 32 90 00, PLANTING.

G. Disposal: All materials removed from the property shall be disposed of at a legally approved site, for the specific materials, and all removals shall be in accordance with all applicable Federal, State and local regulations. No burning of materials is permitted onsite.

3.2 EXCAVATION:

A. Shoring, Sheeting and Bracing: Shore, brace, or slope, its angle of repose or to an angle considered acceptable by the Contracting Officer, banks of excavations to protect workmen, banks, adjacent paving, structures, and utilities.

31 20 00 - 11

1. Design of the temporary support of excavation system is the responsibility of the Contractor. The Contractor shall submit a

Shoring and Sheeting plan for approval 15 days prior to starting work. Submit drawings and calculations, certified by a registered professional engineer, describing the methods for shoring and sheeting of excavations. Shoring, including sheet piling, shall be furnished and installed as necessary to protect workmen, banks, adjacent paving, structures, and utilities. Shoring, bracing, and sheeting shall be removed as excavations are backfilled, in a manner to prevent caving.

2. Construction of the support of excavation system shall not interfere with the permanent structure and may begin only after a review by the Contracting Officer.

3. Extend shoring and bracing to a minimum of 1500 mm (5 feet) below the bottom of excavation. Shore excavations that are carried below elevations of adjacent existing foundations.

4. If bearing material of any foundation is disturbed by excavating, improper shoring or removal of existing or temporary shoring, placing of backfill, and similar operations, the Contractor shall provide a concrete fill support in compliance with specifications

Section 31 23 23.33, FLOWABLE FILL, under disturbed foundations, as directed by Contracting Officer, at no additional cost to the

Government. Do not remove shoring until permanent work in excavation has been inspected and approved by Contracting Officer.

5. The Contractor is required to hire a Professional Geotechnical

Engineer to provide inspection of excavations and soil/groundwater conditions throughout construction. The Geotechnical Engineer shall be responsible for performing pre-construction and periodic site visits throughout construction to assess site conditions. The

Geotechnical Engineer shall observe proof-rolls, inspect foundation excavations and provide recommendations in the event unsuitable soils are encountered. The Geotechnical Engineer shall update the excavation, sheeting and dewatering plans as construction progresses to reflect changing conditions and shall submit an updated plan if necessary. A written report shall be submitted, at least monthly, informing the Contractor and Contracting Officer of the status of the plan and an accounting of the Contractor's adherence to the plan addressing any present or potential problems. The Geotechnical

31 20 00 - 12

Engineer shall be available to meet with the Contracting Officer at any time throughout the contract duration.

B. Excavation Drainage: Refer to Section 312319 – DEWATERING.

C. Subgrade Protection and preparation: Protect subgrades from softening, undermining, washout, or damage by rain or water accumulation. Reroute surface water runoff from excavated areas and not allow water to accumulate in excavations. Do not use excavated trenches as temporary drainage ditches. When subgrade for foundations has been disturbed by water, remove disturbed material to firm undisturbed material after water is brought under control. Replace disturbed subgrade in trenches with concrete or material approved by the Contracting Officer. Scarify subgrade soils to a depth of 6 to 12 inches, adjusting the moisture content as necessary, and compact to 95 percent maximum dry density in pavement areas, and 96 percent maximum dry density in structurally loaded areas.

E. Proof Rolling:

1. After rough grade has been established in cut areas and prior to placement of fill in fill areas under building and pavements, proof roll exposed subgrade with a fully loaded dump truck to check for pockets of soft material.

2. Proof rolling shall be done on an exposed subgrade free of surface water (wet conditions resulting from rainfall) which would promote degradation of an otherwise acceptable subgrade. After stripping, proof roll the existing subgrade of the rough graded areas with six passes of a dump truck loaded with 6 cubic meters (4 cubic yards) of soil or a 13.6 metric ton (15 ton), pneumatic-tired roller. Operate the truck or roller in a systematic manner to ensure the number of passes over all areas, and at speeds between 4 to 5.5 km/hour (2 1/2 to 3 1/2 mph). When proof rolling, one-half of the passes made with the roller shall be in a direction perpendicular to the other passes. Notify the Contracting Officer a minimum of 3 days prior to proof rolling. Proof rolling shall be performed in the presence of the Contracting Officer. Rutting or pumping of material shall be undercut as directed by the Contracting Officer

F. Building Earthwork:

1. Excavation shall be accomplished as required by drawings and specifications.

2. Excavate foundation excavations to solid undisturbed subgrade.

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3. Remove loose or soft materials to a solid bottom.

4. Fill excess cut under footings or foundations with 25 MPa (3000 psi) concrete poured separately from the footings.

5. Over excavate rock where exposed in footing and floor slab subgrades a minimum of 12 inches and backfill with engineered fill.

6. Do not tamp earth for backfilling in footing bottoms, except as specified.

7. Slope grades to direct water away from excavations and to prevent ponding.

8. Capillary water barrier (granular fill) under concrete floor and area-way slabs on grade shall be placed on a 2-inch layer of KYTC

DGA. The 2-inch layer of KYTC DGA shall be placed directly on the subgrade and shall be compacted with a minimum of two passes of a hand-operated plate-type vibratory compactor.

9. Ensure that footing subgrades have been inspected and approved by the Contracting Officer prior to concrete placement. Contracting

Officer

G. Trench Earthwork:

1. Utility trenches (except sanitary and storm sewer):

a. Excavate to a width as necessary for sheeting and bracing and proper performance of the work.

b. Grade bottom of trenches with bell holes scooped out to provide a uniform bearing.

c. Support piping on suitable undisturbed earth unless a mechanical support is shown. Unstable material removed from the bottom of the trench or excavation shall be replaced with select granular material placed in layers not exceeding 150 mm (6 inches) loose thickness.

d. Length of open trench in advance of piping laying shall not be greater than is authorized by Contracting Officer.

e. Provide buried utility lines with utility identification tape.

Bury tape 300 mm (12 inches) below finished grade; under pavements and slabs, bury tape 150 mm (6 inches) below top of subgrade

f. Bury detection wire directly above non-metallic piping at a distance not to exceed 300 mm (12 inches) above the top of pipe.

The wire shall extend continuously and unbroken, from manhole to manhole. The ends of the wire shall terminate inside the

31 20 00 - 14 manholes at each end of the pipe, with a minimum of 0.9 m (3 feet) of wire, coiled, remaining accessible in each manhole. The wire shall remain insulated over it's entire length. The wire shall enter manholes between the top of the corbel and the frame, and extend up through the chimney seal between the frame and the chimney seal. For force mains, the wire shall terminate in the valve pit at the pump station end of the pipe.

g. Bedding shall be of the type and thickness shown. Initial backfill material shall be placed and compacted with approved tampers to a height of at least one foot above the utility pipe or conduit. The backfill shall be brought up evenly on both sides of the pipe for the full length of the pipe. Care shall be taken to ensure thorough compaction of the fill under the haunches of the pipe. Except as specified otherwise in the individual piping section, provide bedding for buried piping in accordance with AWWA C600, Type 4, except as specified herein.

Backfill to top of pipe shall be compacted to 95 percent of ASTM

D 698 maximum density. Plastic piping shall have bedding to spring line of pipe. Provide materials as follows:

1) Class II: Coarse sands and gravels with maximum particle size of 40 mm (1.5 inches), including various graded sands and gravels containing small percentages of fines, generally granular and noncohesive, either wet or dry. Soil Types GW, GP, SW, and SP are included in this class as specified in ASTM

D2487.

2. Sanitary and storm sewer trenches:

a. Trench width below a point 150 mm (6 inches) above top of pipe shall be per Trench Detail on drawings. Width of trench above that level shall be as necessary for sheeting and bracing and proper performance of the work.

1) Bed bottom quadrant of pipe on suitable undisturbed soil or granular fill per Trench Detail on drawings.

b. Place and compact as specified remainder of backfill using acceptable excavated materials. Do not use unsuitable materials.

c. Backfill within limits of existing or proposed paved surfaces:

1) Sand, Combination Flushed and Jetted, and Mechanically compacted (Type 1-B) per MSD Standard Specifications 3.3.5.

d. Backfill outside limits of existing or proposed paved surfaces:

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1) Mechanical Compaction of Earth Materials (Type III-B) per MSD

Standard Specifications 3.3.5.

e. Backfill between pipe and drainage swale or ditch:

1) Earth Backfill (Type III-A) per MSD Standard Specifications.

f. Provide buried utility lines with utility identification tape.

Bury tape 300 mm (12 inches) below finished grade; under pavements and slabs, bury tape 150 mm (6 inches) below top of subgrade.

g. Bury detection wire directly above non-metallic piping at a distance not to exceed 300 mm (12 inches) above the top of pipe.

The wire shall extend continuously and unbroken, from manhole to manhole. The ends of the wire shall terminate inside the manholes at each end of the pipe, with a minimum of 0.9 m (3 feet) of wire, coiled, remaining accessible in each manhole. The wire shall remain insulated over its entire length. The wire shall enter manholes between the top of the corbel and the frame, and extend up through the chimney seal between the frame and the chimney seal. For force mains, the wire shall terminate in the valve pit at the pump station end of the pipe.

h. Bedding shall be of the type and thickness shown. Initial backfill material shall be placed and compacted with approved tampers to a height of at least one foot above the utility pipe or conduit.