AMD_0004_Specifications_and_Drawings_0004.pdf

Arkansas Valley Conduit Boone Reach 2 Amendment No. 0004 Fryingpan-Arkansas Project, Colorado Solicitation No. 140R6023R0011

Price Schedule Revised - B - 1

CONTINUATION OF

SECTION B – SUPPLIES OR SERVICES AND PRICES

ARKANSAS VALLEY CONDUIT BOONE REACH 2

FRYINGPAN-ARKANSAS PROJECT, COLORADO

B.1 PRICE SCHEDULE

(a) Offers will be considered for award on the following Price Schedule, but no offer will be considered for award on only a part of the Price Schedule.

(b) Offers are subject to the terms and conditions of this solicitation.

(c) Quantities in the Price Schedule are estimated quantities for comparison of offers only.

Except as provided in the contract clause at FAR 52.211-18, Variation in Estimated Quantity, no claim shall be made against the Government for overruns or underruns. The contract clause at FAR 52.211-18, Variation in Estimated Quantity, does not apply to lump-sum items.

(d) See the contract clause at WBR 1452.232-81, Payment for Mobilization and Preparatory Work, for CLIN 1.

(e) Definitions:

(1) CLIN – Contract Line Item Number

PRICE SCHEDULE 1

CLIN Section Supplies or Services Quantity and Unit Unit Price Amount

1-1 WBR

1452.232-

Mobilization and Preparatory Work

For the lump sum of $

1-2 01 51 15 Electrical Line Relocation For the lump sum of $ 1-3 01 51 15 Telecommunication Line

Relocation For the lump sum of $

1-4 01 52 10 Field Office For the lump sum of $ 1-5 01 55 20 Traffic Control Management For the lump sum of $ 1-6 01 57 15 Utility Crossing

Investigations For the lump sum of $

1-7 26 42 11 Buried Galvanic Cathodic Protection and Corrosion Monitoring System

8 ea $ $

1-8 27 05 43 Fiber Communications Infrastructure

For the lump sum of $

Revised - B - 2

PRICE SCHEDULE 1

CLIN Section Supplies or Services Quantity and Unit Unit Price Amount

1-9 31 02 10 Water for Dust Abatement For the lump sum of $ 1-10 31 02 30 Dust Palliative 15 Mgal $ $ 1-11 31 03 33 System Design For the lump sum of $ 1-12 31 03 33 Dewatering Materials For the lump sum of $ 1-13 31 03 33 Dewatering System

Installation and Removal For the lump sum of $

1-14 31 03 33 Dewatering Operation For the lump sum of $ 1-15 31 03 33 Observation Wells Materials, Installation, and Removal For the lump sum of $

1-16 31 03 33 Unwatering System Materials, Installation, Operation, and Removal

For the lump sum of $

1-17 31 11 00 Clearing and Grubbing 115,000 yd2 $ $ 1-18 31 14 10 Stripping, Stockpiling, and

Placement 115,000 yd2 $ $

1-19 31 23 22 Rock Excavation 31,000 yd3 $ $ 1-20 31 23 50 Earthwork for Roads 17 yd3 $ $ 1-21 31 32 32 Geotextile 380 yd2 $ $ 1-22 31 37 00 Riprap 1.18 yd2 $ $ 1-23 32 12 22 Asphalt Concrete Pavement 1,200 yd2 $ $ 1-24 32 15 10 Gravel Surfacing 2,800 yd2 $ $ 1-25 32 92 20 Seeding and Soil

Supplements 115,000 yd2 $ $

1-26 33 05 21 Bored Road Crossings For the lump sum of $ 1-27 33 11 10* PVC Line Pipe Delivered to

Site 28,250 lin ft $ $

1-28 33 11 10* HDPE Line Pipe Delivered to Site

28,250 lin ft $ $

1-29 33 11 10* Line Pipe Installed 28,250 lin ft $ $ 1-30 33 11 10 Filling and Testing Pipe For the lump sum of $ 1-31 33 22 15 Sectionalizing Valve

Assemblies 3 ea $ $

1-32 33 22 15 Air Valve Assemblies 9 ea $ $ 1-33 33 22 15 Blowoff Valve Assemblies 12 ea $ $ 1-34 33 22 15 Sampling Station Valve

Assemblies 2 ea $ $

1-35 33 82 23 Optical Fiber Cable 42,000 lin ft $ $ 1-36 35 22 14 Boone Delivery Vault

Assembly For the lump sum of $

1-37 35 22 14 Avondale Delivery Vault Assembly

For the lump sum of $

Revised - B - 3

Note: Mgal = thousand gallons.

*Include price for delivering and installing either PVC or HDPE but not both.

TOTAL FOR PRICE SCHEDULE 1 $_________________

END OF PRICE SCHEDULE

Revised - B - 4

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Meter Socket

Revised - 26 27 10 - 1

SECTION 26 27 10

METER SOCKET

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Cost: Include in price offered in Price Schedule 1 for applicable Delivery Vault Assembly.

1.02 REFERENCE STANDARDS

A. American National Standard Institute (ANSI)

1. ANSI C12.7-2014 Requirements for Watthour Meter Sockets

B. National Electrical Manufacturers’ Association (NEMA)

1. NEMA 250-2020 Enclosures for Electrical Equipment (1,000 V Maximum)

C. National Fire Protection Association (NFPA)

1. NFPA 70-2023 National Electrical Code (NEC)

D. Underwriters Laboratories, Inc (UL)

1. UL 489-2016 Safety Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures

1.03 SUBMITTALS

A. In accordance with Sections 01 33 00 - Submittals and 01 33 26 - Electrical Drawings and Data.

B. RSN 26 27 10-1, Approval Drawings and Data:

1. Items in Part 2 Products.

2. Layout drawings.

3. Manufacturer’s technical data.

1.04 DESIGN REQUIREMENTS

A. Meter-Main: Meet the requirements of local utility.

B. Main Circuit Breaker:

1. Mounted in meter-main enclosure.

Revised - 26 27 10 - 2

2. Molded case.

3. Size: In accordance with NFPA 70, minimum size indicated on Drawings 382-D- 60374 and 382-D-60375.

PART 2 PRODUCTS

2.01 METER SOCKET

A. System: 1-phase, 3-wire.

B. Location: Contractor to coordinate with utility.

C. Voltage Rating: 300 V.

D. Nominal Voltage: 120/240 V.

E. Current Rating: 100A, minimum.

F. Enclosure: NEMA 250.

1. Outdoor: Type 3R.

2. Indoor: Type 1 or 12.

G. Provided with instrument transformers, jaws, and sealing ring as required by local utility.

H. One self-contained socket and main circuit breaker.

I. Inspected and approved by the Department of Regulatory Agency (DORA) per Black Hills Energy. The resulting report shall be furnished to Black Hills Energy prior to installation. For more information, please contact Steve Leenerts, Utility Construction Project Planner, Black Hills Energy; Office: 719-546-6412;

Steve.Leenerts@blackhillscorp.com

2.02 MOLDED CASE CIRCUIT BREAKER

A. Type: Thermal-magnetic.

B. Voltage: 120/240 volts.

C. Amps/Poles: 100A, two-pole.

D. Automatic: Inverse-time trip characteristics on overload and instantaneous trip on short circuit with an interrupting rating of 10kA symmetrical RMS amperes, minimum.

E. Arc quenchers.

F. Quick-make and quick-break toggle mechanisms.

Revised - 26 27 10 - 3

G. Operating Handle:

1. Trip-free.

2. Single operating handle. Handle ties on multiple-pole circuit breakers are not acceptable.

3. Meet OSHA Lock-out/Tag Out requirements. Padlockable in “OFF” position.

H. Conform to UL 489 and be UL listed.

2.03 SERVICE ENTRANCE

A. Underground.

B. Voltage Rating: 120/240 V.

C. Ratings: 100 Amperes.

D. Disconnect Switch:

1. Conform to applicable standards and code.

2. Coordinate appropriate ratings and type for provided utility service.

3. Strutt-mounted, within an enclosure adjacent or next to panelboard.

4. Fused.

5. Enclosure: NEMA 250.

a. Outdoor: Type 3R.

b. Indoor: Type 1 or 12.

2.04 ELECTRICAL EQUIPMENT

A. Furnish all cables, conduits, terminations, and accessories required for interconnecting the equipment included in this section.

2.05 FINISHES

A. Manufacturer’s standard finish appropriate for installed location.

PART 3 EXECUTION

3.01 INSTALLATION

A. Install in accordance with manufacturer’s instructions and recommendations.

B. Items anticipated to be furnished and installed by local utility prior to the Notice to Proceed:

1. Distribution power transformer.

Revised - 26 27 10 - 4

2. Revenue meter.

3. Cables between power transformer and meter-main.

C. Make cable and conduit connections on load side of meter socket.

D. Provide and lay conduit and cable between transformer and disconnect. Do not connect either end. Black Hills Energy will make the connection.

END OF SECTION

Pipe Trench Earthwork Revised - 31 23 22 - 1

SECTION 31 23 22

PIPE TRENCH EARTHWORK

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Rock Excavation:

1. Measurement: Made to lines and grades shown on drawings and trench lengths of rock material excavated:

a. Regardless of actual widths, bottoms, and side slopes excavated, measurement will be made to lines and grades shown on drawings and to original ground or rock surface.

b. Measurement for payment for additional excavation will be made to specified trench width and depth as directed by the CO.

c. Measurement for payment will be continuous through pipe fittings.

d. Measurement for payment of excavation for concrete for pipe fittings that is outside trench excavation lines and grades will be made to lines and grades shown on drawings or to neat lines of the concrete.

2. Payment: Unit price offered in Price Schedule 1:

a. Includes cost of labor and materials for:

1) Mechanical breaking, shoring, sheeting, bracing, timbering, safety sloping, shoring system, and other temporary construction.

2) Pumping and unwatering.

3) Removing such temporary construction where required.

4) Stockpiling excavated material for backfill.

5) Disposal of unused or wasted excavated materials.

b. No direct payment will be made for rock excavation of pipe trenches outside specified trench width and depth.

c. Include cost of rock excavation for pipe trenches required outside lines and grades in prices offered in the Price Schedule for Rock Excavation.

B. Cost:

1. Include the following in price offered in Price Schedule 1 for Line Pipe Installed:

a. Common Excavation:

1) Labor and materials for mechanically excavating trenches, shoring, sheeting, bracing, timbering, sloping, and other temporary construction necessary to maintain trench excavations in safe and

Revised - 31 23 22 - 2 good order during construction; unwatering; removing such temporary construction where required; stockpiling excavated material for backfill; and disposal of unused or wasted excavated materials.

2) Over-excavation is Contractor’s expense.

b. Bedding: Cost of work associated with procuring, processing, hauling, and placing of CLSM or select fill.

c. Embedment and Backfill in Pipeline Trenches:

1) Cost of work associated with excavating or procuring, processing, and hauling of necessary material:

a) CLSM or Select Material.

b) Processed Native Material.

2) Includes cost of furnishing water, moistening, and mixing material.

3) Material from required excavation used for earth materials in pipe and steel manifold trenches will be paid for both as excavation when removed from original position and as embedment or backfill when placed.

4) Where earth materials are obtained from other sources, payment will be made for embedment and backfill only.

5) Volume of pipe will be deducted to embedment and backfill volume based on diameters shown on drawings, regardless of actual diameters of pipe furnished.

1.02 DEFINITIONS

A. Additional Excavation: Excavation beyond specified lines as determined by the COR and directed by the CO to remove unsuitable foundation material.

B. Cover: Distance between top surfaces of buried cables, conductors, or conduits and finished grade as defined by Geotechnical Training Manual No. 7.

C. Over-excavation: Excavation performed for convenience, fault, or operation of Contractor beyond specified or directed additional excavation lines.

D. Rock Excavation:

1. Material that cannot be ripped using conventional excavation equipment and requires a 400 horsepower or larger dozer tractor equipped with rock tooth ripper rated for hard rock.

2. Material that cannot be excavated with conventional excavation equipment and requires a 300 horsepower or larger hydraulic excavator, with rock bucket and teeth, specifically manufactured for rock excavation, and/or a hydraulic hammer

Revised - 31 23 22 - 3

(breaker, hoe-ram), in areas where it is not feasible for ripping with a dozer tractor.

3. Blasting is not permitted.

E. Unsuitable Foundation Material:

1. Materials classified as OL, OH, or peat according to ASTM D2487.

2. Materials containing vegetative waste, debris, or trash.

3. Materials contaminated by hydrocarbons or other chemical contaminants.

1.03 REFERENCE STANDARDS

A. American Association of State Highway and Transportation Officials (AASHTO)

1. AASHTO SSHB-2002 Standard Specifications for Highway Bridges, 17th Edition

B. ASTM International (ASTM)

1. ASTM D698-12(2021) Laboratory Compaction Characteristics of Soil Using Standard Effort (12400 ft-lbf/ft^3 (600 kN-m/m^3))

2. ASTM D2487-17e1 Classification of Soils for Engineering Purposes (Unified Soil Classification System)

3. ASTM D5080-20 Rapid Determination of Percent Compaction

C. Bureau of Reclamation (Reclamation)

1. RSHS Reclamation Safety and Health Standards, including revisions, available at https://www.usbr.gov/safety/rshs/index.html

2. Pipe Bedding and Backfill Geotechnical Training Manual No. 7, 1996, available at https://www.usbr.gov/tsc/techreferences/ma nds/manuals.html

D. Colorado Department of Transportation (CDOT)

1. CDOT Specifications-2022 Standard Specifications for Road and Bridge Construction, available at https://www.codot.gov/business/designsupp ort/cdot-construction-specifications

1.04 SUBMITTALS

A. In accordance with Section 01 33 00 - Submittals.

Revised - 31 23 22 - 4

B. RSN 31 23 22-1, Excavation Work Plan:

1. In accordance with RSHS.

2. Provide all of the work plan details required by the RSHS and also include the design documentation for trench and shielding aspects that require a Professional Engineer.

C. RSN 31 23 22-2, Processing Plan:

1. Describe equipment and methods for removing, stockpiling, processing, crushing, screening, moistening, placing, and compacting pipe embedment and backfill to achieve requirements in Parts 2.03 and 3.06.

2. Provide schedule and sequence.

3. Include working and stockpiling areas and haul route plans.

D. RSN 31 23 22-3, Test Results:

1. Include test date, time, location, person collecting soil samples, and correlating in-situ soil density and moisture information according to Section 31 23 02 – Compacting Earth Materials

1.05 PROJECT CONDITIONS

A. Soil conditions are described in Section 53 10 00 – Geologic Investigations.

B. Excavate and process in-situ soils and bedrock according to pipe trench embedment and backfill requirements.

C. Bidders shall formulate conclusions related to excavation characteristics of in-situ site materials based on drawings and geologic investigations.

PART 2 PRODUCTS

2.01 BEDDING

A. CLSM in accordance with Section 31 23 70 – Controlled Low Strength Material (CLSM) from Station 2016+84 to 2034+00 and from Station 2198+60 to 2282+50.

B. CLSM or select fill material from Station 2000+00 to 2015+50 and from Station 2034+00 to 2198+60 as shown on Drawing 382-D-60332.

2.02 EMBEDMENT

A. Same material options as Bedding.

Revised - 31 23 22 - 5

2.03 MATERIALS FOR BACKFILL

A. Obtain pipe embedment and backfill material from required excavations. If sufficient suitable material is not available from this source, obtain additional material from other sources accepted by COR:

1. Government makes no guarantee that specified pipe embedment and backfill materials are contained in or can be processed from materials excavated.

2. All reasonable effort shall be expended to obtain suitable pipe embedment and backfill materials from required excavation prior to obtaining commercial sources.

B. Do not use:

1. Unprocessed expansive clays, shales, or claystone in compacted backfill or embedment.

2. Material removed during stripping for pipe embedment and backfill materials.

3. Organic material or other deleterious material.

C. Type and amount of material used for pipe embedment and backfill, and manner of depositing material, shall be subject to acceptance by COR.

D. Provide processing equipment and perform work necessary to process excavated materials to produce materials meeting the requirements of these specifications.

E. Material shall be thoroughly mixed and evenly moistened to achieve a uniform material and to avoid pockets or lenses of variable material.

F. Material gradation and plasticity index (PI):

1. Embedment:

a. As shown on Drawing 382-D-60332.

b. PI of processed and thoroughly mixed materials should be less than 15.

2. Backfill:

a. Fines content required: Greater than 15 percent fines from Station 2016+84 to 2034+00 and from Station 2198+60 to 2282+50.

b. Remainder of backfill greater than 1 foot beyond pipe maximum particle size: 3 inches or 1/2 lift height, whichever is smaller.

c. Maximum backfill particle size within 1 foot of the outside of pipe:

Conform to requirement of Table 31 23 22B - Maximum Backfill Particle Size:

Revised - 31 23 22 - 6

Table 31 23 22B - Maximum Backfill Particle Size within 1 foot of Pipe Type of Pipe Maximum Particle Size, inches

PVC, metallic pipe with dielectric coating, or metallic pipe encased in polyethylene

3/4

Polyethylene Pipe:

Diameter 10- to 16-inch Diameter greater than 16-inch

1 1/2 Other pipe types 3

G. Backfill placed where pipelines cross under open irrigation ditches and other watercourses: Silty or clayey material with a plasticity index of 8 or more.

H. No sharp or angular material shall be utilized within 1 foot of the outside of pipe, for backfill, embedment, or bedding.

I. Where compaction or special compaction is required in accordance with Section 31 23 02

– Compacting Earth Materials, the gradation requirements are the same.

J. Warning tape in accordance with Section 33 11 10 - Pipeline General Requirements.

PART 3 EXECUTION

3.01 GENERAL

A. Perform operations so that land can be restored to original conditions.

B. Do not excavate pipe or keep pipe trench open more than 100-feet ahead of pipelaying, placement of compacted backfill, or compaction operations, unless accepted by COR.

C. Placement and compaction operations shall progress and not fall behind pipelaying and excavation operations, allowing for CLSM to obtain required strength shown on Drawing 382-D-60332. If placement and compaction of compacted backfill fall behind pipelaying operations, due to lack of progress or equipment breakdowns, stop excavation and pipelaying operations until sufficient progress has been made as determined by COR.

D. Install warning tape over center of pipe, at least 18-inches below ground, and at least 18 inches above pipe in accordance with Section 33 11 10 - Pipeline General Requirements.

E. Prepare surface so that first compacted lift shall be placed on firm, stable base. Compact surface to specified compaction.

3.02 SHORING SYSTEM

A. In accordance with RSN 31 23 22-1, Excavation Work Plan.

B. Onsite prior to excavation.

Revised - 31 23 22 - 7

C. Use of trench box at Contractor’s discretion.

D. Minimize ground disturbing activities to minimum required to install pipeline and to provide access in area with trench box:

1. No supplemental excavations shall be performed outside the vertical, shored trench excavation.

3.03 EXCAVATION

A. Do not excavate pipe or keep pipe trench open more than 100 feet ahead of pipelaying operations or as approved by CO:

1. Backfill and Compacting Operations:

a. Shall not fall behind pipelaying and excavation operations,

b. Allow CLSM to obtain required strength in accordance with Section 31 23 70 – Controlled Low Strength Material (CLSM).

c. At the end of each shift:

1) Restore roadways and clear zone in conformance with approved traffic control plan and CDOT Specifications.

2) 100 feet of pipe trench, maximum, is open ahead of pipelaying or as approved by CO.

3) Backfill is within 100 feet of pipelaying or as approved by CO.

4) For trenches left open overnight:

a) Cap exposed end of the pipeline.

b) Fence open trench with temporary safety fence in accordance with Section 01 56 32 – Temporary Safety Fence.

c) Follow approved traffic control plan.

2. If backfilling and compacting fall behind pipelaying operations, stop excavation and pipelaying operations. Do not proceed until accepted by COR.

B. Excavate pipe trenches for pipelines, delivery installations, and pipeline accessories to lines and grades shown on drawings.

C. Finish bottom of trench accurately to lines and grades shown on drawings.

D. Perform excavation in the dry.

E. Do not excavate in frozen materials.

Revised - 31 23 22 - 8

F. Preserve material below and beyond established lines of excavation in soundest possible condition:

1. Damage to work due to Contractor's operations shall be repaired by and at expense of Contractor.

2. Material beyond required or prescribed excavation lines which is loosened by Contractor's operations shall be removed at expense of Contractor.

G. At the end of each shift:

1. Maximum 100 feet of pipe trench is open (excavated) ahead of pipelaying.

2. For trenches left open overnight: Install an inflatable watertight pipe plug.

H. Fence open trench with temporary safety fence in accordance with Section 01 56 32 – Temporary Safety Fence.

3.04 ADDITIONAL EXCAVATION

A. Perform additional excavation in trench bottom for pipe, thrust blocks, and collar foundations as shown on drawings and other additional excavation beyond specified lines as directed by CO.

3.05 OVEREXCAVATION

A. When foundation material is over-excavated beyond specified lines and grades shown on the drawings, fill over-excavation with backfill materials and compact in accordance with Section 31 23 02 – Compacting Earth Materials.

B. If foundation material is over-excavated by being disturbed or loosened during excavation, compact material in place or remove and replace with backfill material and compact in accordance with Section 31 23 02 – Compacting Earth Materials.

3.06 STOCKPILING

A. Stockpile excavated materials that meet or shall be processed to meet material requirements for backfill in pipe trenches until processed or used as backfill material.

B. Do not compact stockpile material.

C. Wet material as it is stockpiled to minimum of optimum moisture content.

D. Test moisture content in accordance with Section 31 23 02 – Compacting Earth Materials prior to placement.

3.07 DISPOSAL

A. Dispose of material not used or processed for use as backfill material and waste materials from such processing in accordance with Section 31 23 39 – Disposal of Excavated Materials.

Revised - 31 23 22 - 9

3.08 PIPE TRENCH FOUNDATION

A. Prepare pipe trench foundation by methods to provide firm foundations for pipe:

1. Finish bottom and side slopes of excavation, upon or against which pipe is to be placed, to prescribed dimensions.

2. Moisten and compact prepared surfaces with suitable tools to form firm foundations upon or against which to place pipe.

B. Where unsuitable material is encountered in pipe trench foundation, COR shall determine additional excavation required to remove unsuitable material. Replace materials in accordance with Section 31 23 02 – Compacting Earth Materials.

C. Keep exposed excavation surfaces of shale, claystone, and/or mudstone moist until earth materials are placed on or against it.

3.09 PIPE INSTALLATION

A. In accordance with Section 33 11 10 – Pipeline General Requirements.

3.10 BEDDING AND EMBEDMENT

A. Place to lines and grades shown on drawings.

B. Do not drop directly on pipe.

C. Place CLSM in accordance with Section 31 23 70 – Controlled Low Strength Material (CLSM) and as shown on the drawings.

D. Place to widths and depths shown on drawings.

E. Place at the same elevation on both sides of the pipe to prevent unequal loading and displacement of pipe. Elevation difference on sides of pipe shall not exceed 6 inches.

3.11 BACKFILL PLACEMENT

A. Install warning tape over center of pipe at least 18-inches below ground and at least 18 inches above pipe and conduit.

B. Place backfill in pipe trenches to restore area to existing site conditions.

C. Do not place material in backfill when either the material or the surfaces on which the backfill is to be placed are frozen.

D. Place backfill for over-excavation performed outside specified or directed lines and grades for excavation for pipe trenches in the same manner as specified for adjacent backfill or embedment.

E. Do not drop backfill directly on pipe.

Revised - 31 23 22 - 10

F. Place backfill carefully and spread in uniform layers so that backfill is homogeneous and free from lenses, pockets, voids, laminations, or other imperfections.

G. Place backfill in lifts:

1. Backfill to be compacted: In accordance with Section 31 23 02 – Compacting Earth Materials.

2. Maximum lift height of other backfill: 1 foot.

H. Place backfill to the same elevation on both sides of the pipe to prevent unequal loading and displacement of pipe. Elevation difference of backfill on sides of pipe shall not exceed 6 inches.

I. At the end of each shift: Backfill shall be within 100 feet of pipelaying.

J. Backfill above compacted backfill may be placed as soon as compacting of backfill is completed:

1. Placing of this backfill shall be delayed at locations determined by COR for the procurement of compacted backfill samples for testing.

2. Place backfill over pipe, as accepted by COR, if backfilling operations are interrupted for more than 24 hours.

3.12 COMPACTING BACKFILL

A. Place in layers and compact in accordance with Section 31 23 02 – Compacting Earth Materials.

B. Compact embedment in pipe trenches in layers having about same top elevation on both sides of pipe to prevent unequal loading and displacement of pipe.

C. Compact backfill as specified in Section 31 23 02 – Compacting Earth Materials.

Compacted embedment and backfill layers that do not meet the requirements of these Specifications, based on field quality test results, shall be removed, and replaced at Contractor's expense.

D. For special compaction, there should be at least 12-inches of cover over pipe before using hand-held impact tampers or walk-behind small tamping equipment. The first 2 feet of compacted backfill material shall be considered special compaction as provided in Section 31 23 02 – Compacting Earth Materials.

E. Location of Compacted Backfill:

1. As shown on drawings.

2. Backfill for foundation.

3. Backfill on outside of horizontal curves for a minimum of restrained pipe length.

4. Backfill where pipeline cross under roadways and driveways.

Revised - 31 23 22 - 11

5. Backfill at tees with horizontal outlets, pipe bends, encasements, collars including collar-type blocking, and pipe plugs as shown on drawings.

6. Backfill around valve boxes and manholes as shown on drawings.

7. Where additional excavation for pipe trenches is approved by CO.

8. Backfill to replace removed foundation material or other material, compact backfill within lines and grades shown on the drawings for this additional excavation.

9. Pipe trenches with slope greater than 20 percent.

F. When tests indicate insufficient density of compacted backfill surrounding pipe:

1. Remove backfill above compacted backfill.

2. Compact backfill until required density is obtained.

3. Replace backfill above compacted backfill.

4. This work shall be at Contractor's expense.

3.13 PROTECTION

A. Government reserves the right to direct Contractor to place backfill material over compacted backfill within 72 hours after compacting of backfill has been completed.

B. Provide at least 12 inches of cover over pipe before using hand-held impact tampers or walk-behind small tamping equipment. Compact remaining compacted material in accordance with Special Compaction in Section 31 23 02 – Compacting Earth Materials.

1. After these minimum earth covers are in place, the maximum equipment loading allowed over the pipe shall be HS-20 loading (16,000-pound wheel load) in accordance with AASHTO SSHB.

2. If the use of construction equipment that exerts larger wheel load is proposed, submit analysis and determination of required backfill depths or other protective measures to COR.

3. Construction equipment passing over pipe shall be limited to 5 mph until at least

3.5 feet of cover is achieved.

Revised - 31 23 22 - 12

Optical Fiber Communications Transmission and Distribution Cabling

Revised - 33 82 23 - 1

SECTION 33 82 23

OPTICAL FIBER COMMUNICATIONS TRANSMISSION AND DISTRIBUTION

CABLING

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Optical Fiber Cable:

1. Measurement: Length of optical fiber cable installed in linear feet.

2. Payment: Unit price offered in Price Schedule 1.

B. Cost:

1. Include cost of accessories, splice closures, and optical fiber cable testing in price offered in Price Schedule 1 for Fiber Communications Infrastructure.

2. Include cost of patch panels in price offered in Price Schedule 1 for applicable Delivery Vault Assembly.

1.02 DEFINITIONS

A. Attenuation: The reduction in power of the light signal as it is transmitted. Measured in dB/km.

B. AVC Trunk Line: Primary Government-designed pipeline connecting Devine, Colorado to Lamar, Colorado.

C. Cable: Optical fiber cable with one or more fiber strands and strand bundles, and outer jacket. Single-mode or multimode transmission mode.

D. CPE: Chlorinated polyethylene.

E. dB/km: Decibel per kilometer.

F. Delivery Line: Pipeline connecting AVC Trunk Line to a single participant delivery point.

G. Distribution Fiber Cables: 96 count fiber used between each splice vault location.

H. End-to-end test: Testing of each optical fiber after splicing to ensure the entire length of the fiber installed for this project meets the performance requirements of these specifications.

I. Feeder Fiber Cables: 12 count fiber used between splice vaults co-located with delivery vaults and the delivery vault control panel.

Revised - 33 82 23 - 2

J. HDPE: High density polyethylene.

K. Installed test: Testing for optical fiber that has been installed in conduit, a pull box, or splice vault. Installed tests shall require testing of the entire length of fiber installed for the project.

L. Multi-mode optical fiber: Optical fiber designed to carry multiple modes of light.

M. Optical Fiber Cable: One or more fiber strands and strand bundles, single-mode or multimode transmission mode. Synonymous with Fiber and Optical Fiber.

N. Optical Fiber Connectors: Optical fiber terminations that can be used to join two fibers to form a temporary joint or connect to other hardware.

O. OS2: 9/125 μm single-mode optical fiber, low-water peak.

P. OSP: Outside plant.

Q. OTDR: Optical Time Domain Reflectometer used for testing optical fiber.

R. PVC: Polyvinyl chloride.

S. Reel test: Testing for optical fiber still on the wheel or reel it was shipped to site on.

T. Single-mode optical fiber: Optical fiber designed to carry a single mode of light.

U. Small form-factor pluggable (SFP/SFP+): Compact, hot-pluggable network interface module.

V. Spur Lines: Pipeline connecting AVC Trunk Line to more than one participant delivery point.

W. Strand or Fiber: Individual light carrying optical fiber used to make up optical fiber cables.

X. Telecommunications Cable: For supervisory computer control, voice communication, and logic level signals. (Fiber, Ethernet, Coax, etc.)

Y. Wavelength (Fiber): The distance between two successive crests or troughs of a light wave. Denoted by the Greek letter lambda (λ) and measured in nanometers (nm).

Z. WDM: Wavelength Division Multiplexing.

1.03 REFERENCE STANDARDS

A. Building Industry Consulting Service International (BICSI)

1. OSPDRM, 6th Edition BICSI Outside Plant Design Reference Manual

Revised - 33 82 23 - 3

B. Institute of Electrical and Electronics Engineers (IEEE)

1. IEEE C2-2023 National Electrical Safety Code (NESC)

C. Insulated Cable Engineer Association (ICEA)

1. ICEA S-87-640-2016 Fiber Optic Outside Plant Communication Cable

2. ICEA S-104-696-2019 Indoor-Outdoor Optical Fiber Cable

D. National Fire Protection Association (NFPA)

1. NFPA 70-2023 National Electrical Code (NEC)

E. Telcordia (Bellcore) Testing Standards

1. GR-771-2013 Generic Requirements for Fiber Optic Splice Closures

F. Telecommunications Industry Association (TIA)

1. TIA-568.0-E-2020 Generic Telecommunications Cabling for Customer Premises

2. TIA-568.1-E-2020 Commercial Building Telecommunications Infrastructure Standard

3. TIA-568.2-D-2020 Balanced Twisted-Pair Telecommunications Cabling and Components Standards

4. TIA-568.3-E-2022 Optical Fiber Cabling Components Standard

5. TIA-598-D-2018 Optical Fiber Cable Color Coding

G. Underwriters Laboratories, Inc. (UL)

1. UL 2024-2014 Standard for Safety Cable Routing Assemblies and Communications Raceways

2. UL 1666-2007 Standard for Safety Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed in Shafts

3. UL 1863-2004 Communications-Circuit Accessories

1.04 SUBMITTALS

A. In accordance with Sections 01 33 00 – Submittals, 01 33 26 – Electrical Drawings and Data, and 01 78 30 – Project Record Documents.

B. RSN 33 82 23-1, Approval Data:

1. Items and systems in Part 2 Products.

2. Manufacturer’s technical catalog data.

Revised - 33 82 23 - 4

C. RSN 33 82 23-2, Test Reports:

1. Items and systems in Part 2 Products and items and testing in Part 3 Execution.

2. For each optical fiber cable provided by Contractor.

3. Refer to paragraph 3.03 – Contractor Field Quality Testing.

D. RSN 33 82 23-3, Final Drawings:

1. Items and systems in Part 2 Products.

2. Showing type and locations of all optical fiber cabling and optical fiber termination points.

3. Include identifying information as indicated on cable labels.

4. Butterfly drawings for each vault detailing specific conduit utilization for each cable.

5. Optical fiber schedule table for each splice vault detailing final termination points within splice closure.

1.05 DESIGN REQUIREMENTS

A. Provide single-mode fiber for all outdoor installations.

B. Provide end to end fiber optic network connectivity between the Chemical Injection Site and all specified remote sites within the Arkansas Valley Conduit Boone Reach 2 Project as well as connectivity for future Arkansas Valley Conduit reaches to include the following where applicable:

1. Regulating Tanks.

2. Reclamation Delivery Vaults.

3. Communication Houses.

C. Optical fiber communications transmission and distribution cabling, also known as outside plant (OSP), consists of optical fiber cable and associated components and accessories required to provide data communication signal paths between buildings, plant facilities, project features and plants, major structures, and along project reaches.

D. Optical fiber cable shall be rated for duct, or direct burial installation. The fiber cable shall be armored. At a minimum cable shall be rated for both wet and dry applications.

E. Work consists of providing, testing, and making operational optical fiber cable and interconnecting components necessary to form a complete optical fiber communication cabling system for continuous use.

F. Splice closures shall be provided to house fusion splices between reels of fiberoptic cable and at delivery points.

Revised - 33 82 23 - 5

G. Fiber conduit, pull boxes, splice vaults, and affiliated infrastructure shall be installed within the bounds of the Colorado Department of Transportation right-of-way.

H. All splices shall be fusion splices. Splices between distribution fiber cables shall reside within splice closures. Splices between distribution fiber cables and feeder fiber cables shall reside within splice closures. All splice closures shall be installed within a splice vault. Splices between distribution fiber cables as well as splices between distribution fiber cables and feeder fiber cables shall be permitted to reside within the same splice enclosure.

I. All splices that require optical fiber connectors shall be fusion spliced to the optical fiber connectors. Optical fiber connectors shall be connected to either a patch panel or a media converter and within the control enclosure specified in Section 26 24 20 - Control Enclosures. Mechanical splices are not permitted.

J. Within 28 days of the Government’s approval of RSN 27 05 43-1, the Government will provide a fiber schedule for each splice vault identified in the approved submittal.

Optical fiber connection points within control enclosures will be detailed in the fiber schedule provided by the Government. Each splice vault shall require a minimum of 96 fusion splices. Each control enclosure shall require a minimum of 12 fusion splices for optical fiber connectors.

K. Un-spliced fiber ends detailed in the fiber schedule provided by the Government shall reside within the splice closure specified.

PART 2 PRODUCTS

2.01 GENERAL

A. Manufactured no more than 24 months prior to Notice to Proceed.

2.02 OPTICAL FIBER CABLE

A. Provide cable in accordance with ICEA S-87-640, ISO-11801, and TIA-568.3-E, as appropriate.

B. Cable performance shall not be impacted by immersion in water.

C. UL listed, where available.

D. Distribution Fiber Cables:

1. Single-Mode OS2 Ultra Fiber Optic Cable: Model 096ZUC-T4122D20, manufactured by Corning, Inc., One Riverfront Plaza, Corning, New York, 14831; or equal, having the following essential characteristics:

a. Attenuation of 1310/1383/1550 nanometer wavelength light: Less than 0.34/0.34/0.22 decibels, respectively, per kilometer.

Revised - 33 82 23 - 6

b. Attenuation: Directly proportional to cable length for an arbitrary cable length section after steady-state conditions are reached.

c. 10000-foot reel or more when installed as part of the AVC Distribution Fiber Cable.

d. Fiber Count: 96 minimum.

e. At a minimum, includes 2 ripcords.

f. Designed Service Life: 40 years at specified installation and operating conditions.

g. Maximum Age at Installation: 24 months.

2. Shall be used between the splice vaults.

E. Feeder Fiber Cables:

1. Single-Mode OS2 Ultra Fiber Optic Cable: Model 012ZUC-T4122D20, manufactured by Corning, Inc., One Riverfront Plaza, Corning, New York, 14831; or equal, having the following essential characteristics:

a. Attenuation of 1310/1383/1550 nanometer wavelength light: Less than 0.34/0.34/0.22 decibels, respectively, per kilometer.

b. Attenuation: Directly proportional to cable length for an arbitrary cable length section after steady-state conditions are reached.

c. 1000-foot reel or more when installed as part of the AVC Feeder Fiber Cable.

d. Fiber Count: 12 minimum.

e. At a minimum, includes 2 ripcords.

f. Designed Service Life: 40 years at specified installation and operating conditions.

g. Maximum Age at Installation: 24 months.

2. Shall be used to connect to the control enclosures from the splice vaults identified in Section 03 48 00 - Precast Concrete Structures paragraphs 3.01 B 4 b and c.

F. Deleted

G. Buffer Tubes:

1. Symmetrically stranded buffer tubes around dielectric central member.

2. Gel free/stranded, loose tube.

3. Diameter: 2.5-millimeter.

4. Protect each fiber in a buffer tube.

Revised - 33 82 23 - 7

H. Strength Members:

1. With expansion and contraction characteristics similar to glass fibers.

2. Central dielectric strength member.

3. Tensile strength sufficient for installation and residual rated loads per ICEA S-87- 640.

4. Strength member is included to serve as a cable core foundation to reduce strain on fibers. It shall not serve as a pulling strength member.

I. Shielding or Other Metallic Covering:

1. Armored Cable: Required throughout the project, corrugated steel tape armor.

2. Single tape covering or shield.

3. Per ICEA S-87-640.

J. Jacket:

1. Type: PE (polyethylene) or better and UV resistant.

2. Cable Jacket Marking: Legible and contain the following information:

a. Manufacturer’s name and/or trademark.

b. Strand count.

c. Cable type.

d. Pair count.

e. UL listing.

K. Color Coding: Per TIA-598-D.

L. Water blocking. Performance shall not be impacted by immersion in water.

M. Suitable for installation in innerduct.

N. Bend Radius, minimum: 10 times outer diameter of cable or larger as recommended by cable manufacturer.

O. Cable Tensile Strength, minimum:

1. Long term (installed): 200 pound-force (lbf).

2. Short term (during installation): 600 lbf.

P. Operating Temperature Range: Minus 40 to plus 158 degrees F.

2.03 ACCESSORIES

A. Single Conductor Markers:

1. Type: Heat-shrink or self-laminating-vinyl type, machine printable sleeve.

Revised - 33 82 23 - 8

2. Color: White with black text.

3. Text size: As large as practical but at least 7 point (0.06 inch).

4. 1 inch in length, minimum, and have diameter suitable for installation on intended conductor.

B. Multiconductor Cable Tags:

1. Type: Cross-laminated polyethylene film or Nomex. Resistant to water, oil, solvent, abrasion, and tearing.

2. Rectangular shape and have minimum dimensions of 2 by 0.5 inches.

3. Color: White with black text.

4. Text Size: As large as practical but at least 16 point (0.16 inch).

5. Attach to cable with standard nylon self-locking tie wraps or cable ties.

C. Cable Ties:

1. General purpose black Nylon 6/6.

2. UV resistant.

3. Self-locking.

4. Stainless steel tab.

D. Optical Fiber Connectors:

1. Shall be fusion splice-on fiber optic connectors.

2. Shall have an insertion loss average of less than or equal to 0.15 dB.

3. Shall have a return loss of greater than 55 dB.

4. Suitable for use with OS2 type optical fiber.

5. Fusion splice optical fiber cables and connect to patch panels using LC type connectors.

6. Fusion splice optical fiber cables and connect to media converters using SC or LC type connectors.

7. Make connections to components or SFPs as required.

8. Provide patch cords to connect dielectric fiber cable to fiber optic equipment.

2.04 SPLICE CLOSURES

A. Model SCF-6C22-02, manufactured by Corning, Inc., One Riverfront Plaza, Corning, New York, 14831; or equal, having the following essential characteristics:

1. Designed for splicing fibers in duct and buried applications.

2. 144 single-fiber splice capacity, minimum.

3. Telcordia GR-771 tested.

Revised - 33 82 23 - 9

2.05 PATCH PANELS

A. Model SNAP-24LC-SM, manufactured by DINSpace, Inc., 2155 Chenault Dr., Suite 321, Carrollton, Texas, 75006; or equal, having the following essential characteristics:

1. UL 1863 listed.

2. External interface consisting of 6 LC quad connectors (24 individual LC connections), minimum.

3. Internal interface consisting of 6 LC quad connectors (24 individual LC connections), minimum.

4. Rear or Side DIN-Rail mount capability.

5. Operating Temperature Range: Minus 40 to plus 176 degrees F.

6. Relative Humidity (non-condensing): 10 to 95 percent.

7. Insertion Loss: Less than or equal to 0.2dB (Singlemode).

8. Plug/Unplug Durability: 1000 times.

9. Dimensions: 6.25 inches in height inclusive of cable glands, 5.125 inches in depth with din-rail mount, 2.75 inches in width.

10. Patch Panel Body Faceplate: 18-gauge power-coat painted steel.

11. Fiber Optic Adapters: UL 90 V-0 thermoplastic.

12. Cable Glands: Plastic with maximum cable diameter of 12 millimeter:

a. Two total per patch panel.

b. One located on the top plate of the patch panel and one located on the bottom plate of the patch panel.

2.06 SOURCE QUALITY TESTING

A. Government reserves the right to inspect cable at supplier’s manufacturing plant prior to shipment.

B. Cables shall be tested at the supplier in accordance with the requirements of ICEA S-87- 640-2016 and ICEA S-104-696-2019, as appropriate.

PART 3 EXECUTION

3.01 GENERAL

A. Design OSP in accordance with BICSI OSPDRM.

B. Provide conduit, vaults, and cable tray in accordance with Section 27 05 43 – Underground Ducts and Raceways for Communications Systems.

Revised - 33 82 23 - 10

C. Optical fiber cabling shall be run through continuous conduit and/or telecommunication vaults until exposed in telecommunications space where it is to be terminated.

D. Each pull//hand hole box shall include 50 feet of coiled cable slack or more to facilitate quick repairs.

E. Each splice vault shall include a minimum 100 feet total cable slack with 6 feet slack housed in the splice closure and remaining slack coiled on a coil bracket mounted on side of the vault to expedite repairs.

F. Route optical fiber cables together as a single bundle, do not combine with copper or coax cabling.

G. Seal cable penetrations into equipment or passing through block outs, with silicone-foam, fire-retardant type material.

H. Install cable in a neat and workmanlike manner in accordance with industry standards and manufacturer requirements.

I. Termination:

1. Terminate fiber optic cable at each delivery vault control enclosure with applicable connector.

2. Coil 3 feet of each fiber optic cable inside each delivery vault patch panel.

3. Terminate in accordance with the optical fiber splice schedule provided by the Government.

4. Fibers shall be terminated in strict compliance with the manufacturer’s printed instructions.

5. Clamp cable entering equipment with commercial type cable clamps.

6. Maximum length deferential between terminated strands per bundle shall be 6 inches. If the length does not meet this requirement, the entire bundle shall be re-terminated.

3.02 OPTICAL FIBER INSTALLATION

A. Install in accordance with BICSI OSPDRM, IEEE C2, NFPA 70, TIA 568.0-E, and manufacturer’s requirements and recommendations.

B. Install all fiber optics cable in circuit raceway and conduit or similar protected installation in accordance with Section 27 05 43 - Underground Ducts and Raceways for Communications Systems.

C. Maintain manufacturer recommended minimum bending radius for cables.

D. Splice and terminate optical fiber according to the splice schedule provided by the Government per paragraph 1.05 J of these specifications.

Revised - 33 82 23 - 11

E. Fiber optic cabling shall provide a designated and easily identified to-and-from location marker at each end of the cable.

F. Fiber optic cable installed outside structures shall be installed in ducts and utilize innerducts where specified.

G. Install fiber optic cable without exceeding allowable pulling tensions and sidewall pressures recommended by cable manufacturer.

H. Clamp and lube fiber optic cable per manufacturer’s recommendations.

I. Cable Splicing:

1. Deleted

2. Method: Arc-fusion.

3. Splices per set of fusion tips: 50.

4. Splice loss: 0.1 decibels, average bi-directional.

J. Cable Installed in Conduit:

1. Do not pull cable into conduit until cleaned and are free from obstructions and sharp corners.

2. Draw clean, dry, tight-fitting rag through conduit immediately before installing cable.

3. Install cable using gradual and uniform pulling stresses. Do not exceed allowable pulling tensions and sidewall pressures as recommended by cable manufacturer.

4. Install cable to prevent cuts or abrasions in insulation or protective covering and kinks in cable.

5. When a lubricant is needed as an aid to pulling, use only soapstone or other suitable lubricant that is not injurious to cable insulation.

6. When mechanical cable pulling equipment is used, use a tension meter release mechanism to ensure pulling tension remains below tensile strength of the cable.

7. Remove and replace any cable damaged during installation.

K. Cable Installed in Vertical or Inclined Plane:

1. Support with cable grips leaving slack spans between supports.

2. Clamp cable entering enclosures, junction boxes, or equipment with commercial cable clamps.

3. Cables shall not be installed in an open-air drop of greater than 4 feet.

L. Cable in Boxes and Enclosures:

1. Provide optical fiber cable coils inside pull boxes, junction boxes, and other electrical and control enclosures, and where recommended by the manufacturer.

Revised - 33 82 23 - 12

2. Provide slack in the cable in all boxes, and enclosures. Cable should not be pulled tight against any edge or component in enclosures and boxes.

M. Installation in Innerducts:

1. Where optical fiber cable is installed in conduits or ducts install optical fiber cable in 1.25-inch innerduct. Optical fiber cable shall be compatible with innerduct, and lubricants utilized for installation.

2. Provide a minimum of two empty innerduct ducts for future use in each 4-inch conduit with 1.25-inch innerducts.

3. Provide pulling tape in each spare innerduct.

N. Clamp cable entry and support cable with fiber type cable clamp. Do not use cable ties on optical fiber cable.

O. Splice Closures Installation:

1. Inside splice vaults.

2. Minimum of 6 feet of fiber optic cable slack coiled within the splice closure.

3.03 CONTRACTOR FIELD QUALITY TESTING

A. Perform testing for each of the following situations:

1. Each reel of fiber shall be tested within 24 hours of shipment to the staging site.

2. Each reel of fiber shall be tested prior to installation if it has not been tested in the previous 7 calendar days.

3. Each reel of fiber shall be tested after installation and prior to splicing.

4. An end-to-end test of installed fiber shall be completed after each bundle is spliced.

B. Conduct power loss measurements in accordance with TIA-526-7.

C. Test cables in large groups to minimize number of testing sessions.

D. Notify COR, in writing, of date, time, and cables to be tested at least 7 working days before testing. Testing dates shall be mutually agreeable between Contractor and COR.

E. 100 percent of optical fiber cabling shall be tested and shall meet all requirements and specifications as stated by manufacturer and these specifications.

F. Test each fiber using an Optical Time Domain Reflectometer (OTDR):

1. Purpose and intent of testing:

a. Determine if installed cable is free from defects.

b. Compare measured attenuation with cable manufacturer’s specified maximum attenuation per wavelength.

Revised - 33 82 23 - 13

c. Compare measured bi-directional splice loss with specified splice loss of

0.1 decibels per splice.

d. Compare measured connector loss with specified connector loss of

0.3 decibels.

e. Verify cable length.

2. OTDR Requirements:

a. Calibrated in accordance with TIA-455-226 and TIA-455-231.

b. Fiber Type: Single-mode.

c. Dynamic Range: 32 dB or better.

d. Resolution: 0.01 dB or better.

e. Wavelength Range: 1310 to 1650 nm in 1 nm steps or better.

f. Calibrated Wavelengths: 1310 and 1550 nm at a minimum.

g. Measurement Range: Plus 5 to minus 50 dBm.

h. Bare fiber adapter.

i. Reflectance Accuracy: ±2 decibels.

3. Obtain an OTDR waveform for each fiber to:

a. Determine actual cable length.

b. Determine attenuation and splice loss.

c. Identify and locate splices and step discontinuities and possible fiber breaks.

G. Prepare test reports:

1. Test reports shall be completed at the time of testing and made available to the CO or COR upon request.

2. PDF copy and paper copy of each trace made during testing for inclusion in report.

3. OTDR waveform for each fiber showing “A” and “B” range marks: Do not move or change location of either mark.

4. Include an Analysis Summary Results Table for each fiber:

a. Indicate numerical values associated with each event.

b. Do not use question marks, dashes, or blanks.

5. Include following information for each trace:

a. Trace name.

b. Date of test.

c. Name or names of Contractor's personnel who performed test.

Revised - 33 82 23 - 14

d. Name of Government inspector who witnessed test.

e. Fiber type being tested.

f. Bundle color.

g. Fiber color.

h. Fiber number.

i. Launch reel length.

j. OTDR…