22. Attachment A - AMD 0001 Specifications.pdf

Attachment A

AMD 0001 Specifications

89503222BWA000047

24 February 2022

Specification No. 1004

MONTANA

SECTION C

DESCRIPTION/SPECIFICATIONS

LOVELL-YELLOWTAIL NO. 1 AND NO. 2

115-KV TRANSMISSION LINE REBUILD

PHASE 3

SECTION C

DESCRIPTION/SPECIFICATIONS

LOVELL-YELLOWTAIL NO. 1 AND NO. 2 115-KV

TRANSMISSION LINE REBUILD PHASE 3

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT

B. DESCRIPTION OF WORK

1. The Principal Components of Work

C. DESCRIPTION OF BIDDING SCHEDULE ITEM

1. Bidding Schedule item “Mobilization and preparatory work”

D. COMMENCEMENT, PROSECUTION AND COMPLETION OF WORK

1. SUBMITTAL APPROVAL TIME

2. OUTAGE AND CONSTRUCTION SCHEDULE RESTRICTIONS

3. PROTECTIVE GROUND LEADS

4. MAXIMUM AVAILABLE FAULT CURRENT

E. CONSTRUCTION SCHEDULE

1. SUBMITTAL TIME

F. RIGHTS-OF-WAY

1. General

2. Access Easements

3. Work on the Right-Of-Way

G. GEOLOGIC INVESTIGATIONS

H. ELECTRIC POWER FOR CONSTRUCTION PURPOSES

I. WATER FOR CONSTRUCTION PURPOSES

J. EXPLOSIVES AND BLASTING

K. BURIED UTILITIES

L. CONTRACTOR COMMUNICATIONS FOR WAPA USE

M. EMPLOYEE REQUIREMENTS

N. ELECTRICAL MINIMUM APPROACH DISTANCES

O. SUBMITTALS AND CORRESPONDENCE

1. General

2. Transmittal

3. Submittal Response

4. Physical Sample Submittals

5. Project Protocol

DIVISION 2 – SITEWORK

A. GENERAL

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS

1. Bidding Schedule item “Removing existing single-circuit 115-kV wood transmission line”

2. Bidding Schedule item “Clearing”

3. Bidding Schedule item “Grading for structure sites and access road improvements”

4. Bidding Schedule for “Furnishing and Installing Corrugated Metal Pipe Culverts"

5. Bidding Schedule item “Seeding”

6. Bidding Schedule item “Access road repair”

7. Bidding Schedule item “Furnishing and installing fence grounds”

8. Bidding Schedule item "Barbed wire gates in existing barbed wire fences"

9. Bidding Schedule item "Miscellaneous Sitework"

10. Bidding Schedule Does Not Contain Separate Items

DIVISION 7 – WOOD POLE STRUCTURES

A. DESCRIPTION OF BID ITEMS

1. Bidding Schedule items for Wood Pole Structures

DIVISION 8 – GLUED LAMINATED STRUCTURES

A. DESCRIPTION OF BID ITEMS

1. Bidding Schedule item “Furnishing and Installing 115-kV transmission line glued laminated wood pole structures”

DIVISION 10 – TRANSMISSION LINE ELECTRICAL

A. DESCRIPTION OF BID ITEMS

1. Bidding Schedule items for Conductor Insulator Assemblies

2. Bidding Schedule items for Overhead Ground Wire Assemblies

3. Bidding Schedule items for Optical Overhead Ground Wire Assemblies

4. Bidding Schedule item “Furnishing and installing six (6) 795-KCMIL, ACSS, 26/7 strand, standard strength “Drake” conductors”

5. Bidding Schedule item “Furnishing and installing six (6) 795-KCMIL, ACSS, 30/19 strand, MA3, high-strength “Mallard” conductors”

6. Bidding Schedule item “Furnishing and installing two (2) 3/8-inch diameter, extra-high strength, 7-strand steel overhead ground wires”

7. Bidding Schedule item “Furnishing and installing two (2) 7/16-inch diameter, extra-high strength, 7-strand steel overhead ground wires”

8. Bidding Schedule item “Furnishing and installing two (2) 0.465-inch diameter, 24-fiber optical overhead ground wires”

9. Bidding Schedule items for “Furnishing and installing vibration dampers”

10. Bidding Schedule item “Furnishing and installing marker balls”

11. Bidding Schedule item for “Spare Parts”

12. Bidding Schedule item for “Furnishing and installing bird diverters”

13. Bidding Schedule Does Not Contain Separate Items for Jumper Connections

DIVISION 13 – ENVIRONMENTAL QUALITY PROTECTION

A. DESCRIPTION OF BID ITEM

1. Bidding Schedule does not contain a separate item for “Environmental Quality

Protection”

2. Special Requirements

DIVISION 14 – COMMUNICATIONS FACILITIES

A. COMMUNICATION FACILITIES

1. Bidding Schedule item “Furnish and install fiber optics (FO) and associated equipment”

DIVISION 15 – DRAWINGS

A. CONSTRUCTION DRAWINGS

1. General

B. AS-BUILT DRAWINGS

1. General

2. Recording Information

3. Drawing Markup

4. Drawing Review

5. As-Built Information to be Recorded

C. REVIEW OF AS-BUILT DRAWINGS

1. As-Built Drawing Submittal

2. Review

3. Acceptance

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

Construct and complete Lovell-Yellowtail No. 1 and No. 2 115-kV Transmission Line Rebuild - Phase 3, in accordance with the Construction Contract (Standard Form 1442); the Contract Clauses; WAPA’s Construction Standards, including Standard 1 – General Requirements (March 2021), Standard 2 – Sitework (March 2021), Standard 7 – Wood Poles (March 2021), Standard 8 – Glued Laminated Structures (March 2021), Standard 10 – Transmission Line – Electrical (March 2021), Standard 13 – Environmental Quality Protection (March 2021), Standard 14 – Communication Facilities (March 2021), Standard 15 – Drawings (March 2021); Standard Drawings; and these Project Specifications and Drawings.

If a conflict occurs between the Project Specifications and the Construction Standards, the Project Specifications shall govern. The Project Specifications and the Drawings are used to take exceptions or provide additions to the Construction Standards. Some paragraphs in the Construction Standards will not apply to this job.

WAPA’s Construction Standards, Standard Drawings and Electrical Equipment Standards are available at https://www.wapa.gov/DoingBusiness/SellingToWestern/Pages/what-western-buys.aspx.

WAPA Project Specifications and Construction Standards are explained in Standard 1 – General Requirements, Section 1.1.1, “Standards and Project Specifications”.

B. DESCRIPTION OF WORK:

1. THE PRINCIPAL COMPONENTS OF WORK include the following:

a. Removing approximately 16-miles of 115-kV wood H-Frame transmission line, structures 30/6 to 46/2 and 46/5, on the Lovell-Yellowtail No. 1 transmission line.

b. Removing approximately 16-miles of 115-kV wood H-Frame transmission line, structures

30/6 to 46/2 and 46/5, on the Lovell-Yellowtail No. 2 transmission line.

c. Constructing approximately 16-miles of single circuit 115-kV transmission line on new wood H-Frame structures and existing steel lattice structures with 795-kcmil, ACSS Drake conductor, one (1) 3/8 extra high strength overhead ground wire (OGW) and one

(1) 0.465-inch, 24-fiber optical ground wire (OPGW) on the Lovell-Yellowtail No. 1 transmission line.

d. Constructing approximately 16-miles of single circuit 115-kV transmission line on new wood

H-Frame structures and existing steel lattice structures with 795-kcmil, ACSS, 26/7, Drake conductor, one (1) 3/8 extra high strength overhead OGW and one (1) 0.465-inch, 24-fiber OPGW on the Lovell-Yellowtail No. 2 transmission line.

e. Furnishing and installing 0.42-miles of 795-kcmil, ACSS, 30/19, Mallard conductor over the

Big Horn River Canyon from Lattice Structures 46/3 to 46/4 on the Lovell-Yellowtail No.

1 and No. 2 transmission lines.

f. Furnish and installing 0.42-miles of 7/16 extra high strength OGW over the Big Horn River

Canyon from Lattice Structures 46/3 to 46/4 on the Lovell Yellowtail No. 1 and No.

2 transmission lines.

g. Furnishing, installing and end-to-end testing fiber optic duct cable (FODC) and a fiber termination panel (FTP) at Yellowtail substation.

Paragraphs “Description of Bid Items” in Divisions – 1, 2, 7, 8, 10, 13, 14 and 15 describe the work to be performed.

The work is located on the Crow Indian Reservation in Carbon and Big Horn Counties, Montana as shown on Drawings YT 0015, LV-YT 1 0003, LV-YT 1 0001 and LV-YT 2 0001.

C. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule item “Mobilization and preparatory work” includes the following:

a. Performing mobilization and preparatory work in accordance with Section H only of the contract clauses.

b. Prepare and submit a Construction Schedule and furnish a Safety and Health Program.

D. COMMENCEMENT, PROSECUTION AND COMPLETION OF WORK: See FAR 52.211-10 in

Section F of the solicitation/contract.

1. SUBMITTAL APPROVAL TIME: Except as otherwise provided for specific submittals, WAPA will require 30-calendar-days for review of drawings or data submitted for approval.

2. OUTAGE AND CONSTRUCTION SCHEDULE RESTRICTIONS: In addition to the restrictions listed in Construction Standard 1, the following outage restrictions shall apply:

a. Concurrent outages will NOT be approved on the LV-YT No. 1 and No. 2 transmission lines.

b. LV-YT No. 1 115-kV Transmission line or sections of this line must be upgraded prior upgrading the LV-YT No. 2 115-kV Transmission line.

c. The Contractor shall not work more than 60-hours in 1-calendar-work week without prior approval from the Contracting Officer’s Representative (COR).

d. The electrical operation of the transmission lines is under the jurisdiction of WAPA’s Operations Office. All outage requests by the Contractor shall be subject to the approval of the COR. Approval or denial of an individual outage request will be based on transmission system electrical loads, system operating configurations and weather conditions at the time the outage is scheduled to begin. At any time because of transmission system electrical loads, transmission system operation or reliability, WAPA may deny an outage request or direct the Contractor to return facilities to operating conditions and release the applicable Special Work Permit.

e. Make all outage requests in writing to the onsite WAPA representative a minimum of

30-days in advance.

f. Meeting the minimum advance notice requirement of 30-days does not guarantee an outage will be approved. To improve the chances of an outage being approved, all outages should be submitted with as much advance notice as practicable. Weather conditions and other system conditions such as other scheduled and nonscheduled (forced) outages must be evaluated against an outage request before approval can be granted. At any time because of transmission system electrical loads, system configurations, weather conditions or any condition which may cause an adverse effect on the transmission system operation or reliability, WAPA may deny an outage request or direct the Contractor to return facilities to operating conditions and release the applicable Special Work Permit.

3. PROTECTIVE GROUND LEADS: See WAPA Construction Standards, Standard 1 “General Requirements”, Section 1.4.14.3.

4. MAXIMUM AVAILABLE FAULT CURRENT: When protective ground leads are required, the protective ground leads shall be sized as defined below and shall meet the requirements of Standard 1 – General Requirements, Section 1.4 “Safety and Health” and the following:

a. The maximum available fault current is 14,322-amps and the X/R ratio is 18.4 on the Lovell-

Yellowtail No. 1 and 2 Transmission lines.

b. A minimum of one (1) 2/0 ground cable shall be used up to 56-feet.

E. CONSTRUCTION SCHEDULE:

1. SUBMITTAL TIME: Prepare and Submit a Construction Schedule to the Contracting Officer (CO) within 14-calendar days after date of Notice to Proceed.

F. RIGHTS-OF-WAY:

1. GENERAL: In general, the transmission line right-of-way is 75-feet wide for both the Lovell- Yellowtail 115-kV No. 1 transmission line and the Lovell-Yellowtail 115-kV No. 2 transmission line for a total of 150-feet of Right-Of-Way (ROW) except at locations where guys and anchors require additional ROW. WAPA does not represent that the Contractor can gain access to every structure site or travel continuously along the transmission line.

Orient construction methods and equipment to utilize Government-furnished rights-of-way or obtain additional temporary access without additional cost to WAPA. Any additional temporary access acquired by the Contractor shall have prior COR approval, since several areas of the transmission line have travel restricted areas. During the contract period, WAPA reserves the right to use Contractor-obtained access.

2. ACCESS EASEMENTS: Access roads to transmission line structures are shown in Drawings

LV-YT T760-T766. During inclimate weather, construction activities may be stopped by COR if access road conditions make landscape damage likely. The Contractor shall note that the paved road through the Big Horn National Recreation Area has no snow removal service during winter months.

a. The Contractor, at no cost to the Government, is responsible for working directly with the landowner to obtain a temporary easement/agreement to utilize, improve or create roads not shown on project drawings. Each easement/agreement should specifically detail the reclamation to be completed after use. The Contractor shall submit time-stamped photographs and videos of the initial condition of the acquired easement, right of way, access roads and any lay down yards to the COR. After reclamation of these areas are complete, the Contractor shall submit time-stamped photographs and videos of the same areas to the COR.

b. Refer to Division 13, Plan and Profile drawings and access road maps for information regarding “Environmental Requirements Areas.”

3. WORK ON THE RIGHT-OF-WAY:

a. General: Excavation, dozing or blading for access to or along the transmission line may only be performed after field review and approval by the COR in accordance with Division

13. Unauthorized excavation, dozing, blading shall immediately be repaired, or WAPA will have the damage repaired and back charge the Contractor for all costs involved.

b. Ease of Travel and Crane Landings: Excavation, dozing or blading done for ease of travel on any easement or for crane landings shall not be recontoured. Topsoil shall be stockpiled and spread on cuts prior to completion of work.

c. Drawings LV-YT T760-T766 show the access roads that are available for the Contractor to use. Prior to the use of access roads for this project, the Contractor shall submit time-stamped photographs and videos of the initial condition of all roads to the COR. All access roads used during this project shall be reclaimed to the same or better condition than before use, or as state in the easement/agreement without additional cost to the Government. After reclamation of these roads is complete, the Contractor shall submit time-stamped photographs and videos of the roads to the COR.

d. Prior to the use of access roads for this project, the Contractor shall submit time-stamped photographs and videos of the initial condition of all roads to the COR. All access roads used during this project shall be reclaimed to the same or better condition than before use, or as stated in the easement/agreement without additional cost to the Government. After reclamation of these roads is complete, the Contractor shall submit time-stamped photographs and videos of the roads to the COR.

e. The Contractor shall provide to WAPA proof of insurance, traffic control plan(s) and any other necessary documents to perform work over State or Federal Roadways 90-calendar days prior to performing work.

G. GEOLOGIC INVESTIGATIONS:

Geologic information has not been obtained for this project, and none is known to exist. The Contractor shall determine the nature of the material to be excavated, the difficulties of making and maintaining required excavations and doing other work affected by geology and ground water elevations at the worksite.

H. ELECTRIC POWER FOR CONSTRUCTION PURPOSES:

Make arrangements and provide all electric power for construction purposes. Provide necessary transmission lines, distribution circuits, transformers and other electrical equipment for distributing the power to the places of use. At contract completion, remove temporary electrical equipment and distribution lines.

I. WATER FOR CONSTRUCTION PURPOSES:

Furnish water for construction purposes. Make arrangements for obtaining the water and provide for conveying the water to the points of use.

J. EXPLOSIVES AND BLASTING:

Explosives shall not be used.

K. BURIED UTILITIES:

Prior to excavation, examine the area and determine the location of buried utilities. Utilities shall be identified with a marker denoting the type of service.

L. CONTRACTOR COMMUNICATIONS FOR WAPA USE:

Furnish and maintain up to four (4) Contractor handheld radio units to WAPA inspectors use. The radio units shall be provided for WAPA’s use for the duration of the field work and shall be ready for use at the beginning of the Contractor’s field work. The radios shall operate on the Contractor’s normal radio frequencies; be complete with appropriate accessories, adjusted and maintained in good working condition; provide reliable 2-way communication with the Contractor’s office and field crews; and be operational while work is being performed. When the Contractor’s field work is completed, the radios will be returned to the Contractor.

M. EMPLOYEE REQUIREMENTS:

In addition to the requirements listed in WAPA Construction Standard 1.4.3 all employees are restricted from wearing a headset, headphone or other listening device, other than a hearing aid or instrument for the improvement of defective human hearing, hearing protection worn as the hazard exists or for communication purposes while on a WAPA jobsite.

N. ELECTRICAL MINIMUM APPROACH DISTANCES:

In addition to the requirements listed in WAPA Construction Standard 1.4.9 equipment other than cranes and derricks, conductive objects or personnel, shall not be brought closer to energized facilities than the electrical minimum approach distances established by OSHA 1926.958(b), “Materials, Handling and Storage”. The less stringent equipment clearance distances established by OSHA 1926.960, “Working On or Near Exposed Energized Parts”, Table V-5 and Table V-6, may only be used after the Contractor has completed and submitted WAPA’s Electrical Clearance Variance form and has received the signed form in return from the COR.

O. SUBMITTALS AND CORRESPONDENCE:

1. GENERAL: The Contractor shall furnish submittals via email as specified in the Construction Standards and this Project Specification to the email address listed under the Transmittal section below and with the following requirements:

a. Submittals shall be in the following formats, standard PDF, Microsoft Word (.docx), Microsoft

Excel (.xlsx), Electronic CAD (.dwg) (AutoCAD version 2018). All submittals in .dwg format shall also be submitted in .pdf format.

b. Each submittal shall include label at the top of the first page or drawing with the WAPA

Contract number with the Specification number, if applicable (89503222CWA000XXX- XXX), WAPA project title, Bidding Schedule Contract Line Item Number (CLIN) equipment designation or if a designation is not available applicable division number and applicable division paragraph number.

c. In general multiple CLIN’s on a single submittal are not permitted. Like item CLIN’s in the same division may be submitted together, for example each of the following, wood structures, assemblies, and vibration dampers may be submitted together. Phase Identification Signs and Equipment Identification Signs can be submitted together.

d. A cover transmittal letter will be provided by WAPA (in both a Microsoft Word and PDF format) and shall be included with each email submittal. The transmittal shall also contain a contact name, the WAPA Contract number with the Specification number, if applicable (89503222CWA000XXX-XXX), WAPA project title, CLIN and applicable division number and applicable division paragraph number.

2. TRANSMITTAL: The Contractor shall submit all correspondence (Request for Information, Submittals, etc.) to the following email addresses care of the COR.

Rocky Mountain Region

ATTN: J5600

Email: RMR-J5600-CS@wapa.gov

3. SUBMITTAL RESPONSE: WAPA will provide a response to all submittals in accordance with

Division 1.D.1 of these specifications with an “Acceptable for Use” or “Not Acceptable” status, with comments as appropriate, to the email address where the submittals originated.

4. PHYSICAL SAMPLE SUBMITTALS: When physical specimens or digital media are required to be submitted for approval, (i.e., brick samples, roofing material samples, carpeting, CDs, DVDs, etc.) the Contractor shall provide a digital cover letter outlining the physical sample submittal prior to sending the sample (including tracking data when applicable) and shall deliver physical specimens to:

Western Area Power Administration

ATTN: A7900

12155 W. Alameda Parkway Lakewood, CO 80228-2802

5. PROJECT PROTOCOL:

a. Electronic Correspondence:

EMAIL SUBMITTAL FORMAT:

Subject Line in Email Submittal number, Subject, CLIN Number, Project Name/Number, and Contract Number Example: Submittal 017, Steel Compression Dead Heads, Lovell-Yellowtail Phase 3, 895032-

22C-WA000XXXX-1004

b. Payment Requests:

EMAIL PAYMENT REQUEST FORMAT:

Invoice number and Project Name/Number and Contract Number Example: Invoice 01, Lovell Yellowtail Phase 3, 895032-22C-WA000XXXX-1004

c. Certified Payrolls-Prime and Subcontractors:

EMAIL CERTIFIED PAYROLL FORMAT:

Certified Payroll (CP), Contractor’s names, Week ending (WE), Project Name/Number, and Contract Number Example: CP-(Smith Inc.), WE 09/12/22 & 09/19/22, Lovell Yellowtail Phase 3, 895032-22C-

WA000XXXX-1004

d. Request for Information:

EMAIL (REQUEST FOR INFORMATION) FORMAT:

Request for Information (RFI), Project Name/Number, and Contract Number Example: RFI 003, Labeling Info, Lovell Yellowtail Phase 3, 895032-22C-WA000XXXX-1004

DIVISION 2 – SITEWORK

A. GENERAL:

All structures installed in cultivated fields, require disposal of excess excavated material.

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “Removing existing single-circuit 115-kV wood transmission line” includes the following:

a. Removing electrical items and wood pole structures. Locations described by station are on the existing Lovell-Yellowtail No. 1 and No. 2 115-kV transmission lines as shown on Existing Installation Drawings LV-YT 1 4022 through LV-YT 1 4037 and LV-YT 2 4024 through LV-YT 2 4040. Items removed from the existing line shall become the property of the Contractor and shall be removed promptly from the Right-of-Way and may not be reused in constructing the new line. Removal of conductor/wire shall be in accordance with WAPA’s construction standards and any restrictions listed in Division 10 and 13.

b. Approximate quantities are listed in Tables 2-1 and 2-2. The Contractor shall determine the actual quantities to be removed and, regardless of the quantities removed, payment will only be made for the lump sum price bid in the Bidding Schedule.

c. The Contractor shall include any credit to the Government for salvage of the equipment and/or materials. Dispose of wood pole structures, guy wires, assemblies and anchors per WAPA standards.

d. Approximate quantities are listed in Tables 2-1, 2-2 and 2-3. The Contractor shall determine the actual quantities to be removed and, regardless of the quantities removed, payment will only be made for the lump sum price bid in the Bidding Schedule.

e. Remove the conductors and overhead ground wires, complete with accessories, listed in

Table 2 1.

TABLE 2-1 – ELECTRICAL ITEMS TO BE REMOVED

Material Unit Quantity

Three (3) 397.5-kcmil 26/7 ACSR “Ibis” Conductors (LV-YT 1) MI 15.02 Three (3) 556 .5-kcmil 24/7 ACSR “Parakeet” Conductors (LV-YT 1) MI 0.52 Three (3) 795-kcmil 30/19 “Mallard” Conductors (LV-YT 1) MI 0.42 Three (3) 556 .5-kcmil 24/7 ACSR “Parakeet” Conductors (LV-YT 2) MI 15.63 Three (3) 795-kcmil 30/19 “Mallard” Conductors (LV-YT 2) MI 0.42 Two (2) 3/8-inch, high-strength steel, 7-strand overhead ground wires

(LV-YT 1) MI 15.54

Two (2) 3/8-inch, high-strength steel, 7-strand overhead ground wires

(LV-YT 2) MI 15.59

One (1) 7/16-inch, extra-high-strength steel, 7-strand overhead ground wires (LV-YT 1) MI 0.42

One (1) 7/16-inch, extra-high-strength steel, 7-strand overhead ground wires (LV-YT 2) MI 0.42

Suspension Insulator assemblies with porcelain insulators (LV-YT 1 & 2) EA 732 Tension Insulator assemblies with porcelain insulators (LV-YT 1 & 2) EA 138 Suspension overhead ground wire assemblies (LV-YT 1 & 2) EA 492 Tension overhead ground wire assemblies (LV-YT 1 & 2) EA 88

f. Remove the wood pole structures, complete with guys and anchors, listed in Table 2-2 and as shown on Existing Installation Drawings LV-YT 1 4022 through 4037 and LV-YT 2 4024 through 4040.

TABLE 2-2 – WOOD POLE STRUCTURES TO BE REMOVED

Wood Pole Structure Type or Material Quantity Wood Suspension-type H-frame structures (LV-YT 1 & 2) 231 Wood Tension-type 3 pole structures (LV-YT 1 & 2) 20 Wood Angle-type 3 pole structures (LV-YT 1 & 2) 12

TABLE 2-3 – WOOD POLE STRUCTURE TO BE CUT OFF AT GROUND LINE

Wood Pole Structure Type or Material LV-YT No. 2 Existing Structure No.

Suspension-type H-frame structures 34/1 (Refer to Division 13)

2. Bidding Schedule item “Clearing” includes the following:

a. The Contractor shall clear all incompatible vegetation within 37.5-feet either side of the new transmission line centerline between Structures 707+33 to 892+66 as shown on new Drawings LV-YT 1 4022-1 – 4037 and LV-YT 2 4025-1 – 4040-2. Incompatible vegetation is defined as vegetation unsuitable for the ROW or, regardless of initial height, vegetation exhibiting growth characteristics that would pose clearance concerns with the conductor when at a mature height. The required conductor to vegetation clearance for this project is 22-feet. This is measured from the maximum sag of the conductor as shown on new Drawings LV-YT 1 4022-1 – 4037 and LV-YT 2 4025-1 – 4040-2 to the full mature height of each species of vegetation. For example, the Contractor shall remove any immature non-compatible tree species that may encroach the 22-feet buffer at any point within its lifespan. All non-compatible vegetation shall be removed from the ROW. Only compatible vegetation shall be left at a distance of no more than 22-feet from the conductor within the

ROW.

Compatible vegetation, which at maturity, will not encroach on the 22-foot clearance buffer, shall be preserved in the ROW. Incompatible vegetation may be preserved if that vegetation is located in a topographic low such as a ravine, gully, valley, swale or on a side hill, where-in topography is such that the vegetation at maturity shall not grow within 22-feet of the conductor.

Non-compatible Tree Species in Transmission Line ROW’s.

Species Common Name Scientific Name

CONIFER

Balsam fir Abies spp Eastern Thuja occidentalis

Pine Pinus spp Spruce Picea spp Larch Larix spp

Hemlock Tsuga spp

DECIDUOUS

Alder Alnus incana Aspen Populus tremuloides Poplar Populus spp Maple Acer spp Cherry Prunus spp

Red Oak Quercus spp Willow Salix spp

b. General Requirements for Clearing:

(1) All cutting shall be done selectively.

(2) Trees shall be felled in a manner to minimize damage to those trees or shrubs, which are to be preserved.

(3) In cutting trees, all stumps shall be cut flush to the ground, unless physical obstructions prevent cutting the stump flush to the ground (e.g. rocks, topography, fencing or other physical limiting factors). Flush stump heights should not exceed 3-inches above ground surface for smaller trees (less than 1-foot DBH diameter), while stump heights of 6-inches above ground surface maximum are acceptable for trees with a CBH in excess of 1-foot diameter. Stumps shall be cut parallel to the ground, with no sharp splinters or points remaining.

(4) If areas are encountered that have already been cut over, any tree stubs and incompatible vegetation of an excessive height shall be re-cut to the heights specified above.

c. The Contractor shall dispose of all cleared vegetation using the piling, slash and chipping method described below.

(1) Piling and Slash

(a) Timber (6-inches or larger in diameter).

(b) All tops of trees smaller that are less than 6-inches in diameter shall be cutoff and considered slash.

(c) All tree limbs shall be cutoff and considered slash.

(d) All timber shall be placed in neat piles along the edge of the right-of-way, away from areas of preserved compatible vegetation. Under normal conditions timber piles will be interspersed with slash piles.

(e) Timber shall be stacked in tree length piles unless otherwise specified, in piles not greater in length than the longest tree length. A separation of at least 10-feet shall be provided on either side of each pile.

(f) All access roads, trails and streams (including their banks) shall be kept clear.

(2) Slash

(a) All slash (i.e., trees less than 6-inches in diameter, treetops, limbs) shall be fed through a mechanical chipper after cutting. Chips shall be 4-inches or less in diameter.

(3) Chipping

(a) Unless otherwise approved by the COR, chips shall be randomly scattered on the right-of-way in no more than a maximum depth of 4-inches, except in the following areas: within 100-feet of drainages, stream banks, ponds, lakes or wetlands. In such areas, chips must be disposed of at an alternate site, on an appropriate manner, approved by COR.

(4) Disposal

(a) The procedure and equipment used shall minimize disturbance to both the right-of-way soil cover and to the vegetation that is to remain on the right-of-way. Specifically:

1) Vehicles shall be equipped with high floatation tires or rubber tracks to minimize ground disturbance.

2) Track vehicles shall be equipped with grouser pads and operable winches with at least 50-feet of cable.

d. All vehicles shall be equipped with cabs, to protect the operator from falling limbs and trees and to ensure the vehicle can withstand rolling accidents. All felled trees, logs, slash, brush and chips shall be removed beyond designated flood areas wherever possible with minimal disturbance to the soil and remaining tree roots. Where not possible, slash will be compacted in such a manner that it will not be carried away by high water. Chips should be spread and covered with soil. All disposal operations shall closely follow (by no more than 3-days) clearing operations to keep work confined to one (1) area and to prevent unsightly and unsafe conditions.

e. The Contractor shall include any credit to the Government for salvage of the equipment above in this bid item.

3. Bidding Schedule item “Grading for structure sites and access road improvements” includes the following:

a. Grading for drainage.

b. Grading for access roads.

c. Grading for shaping around structure sites including equipment landings.

All grading shall be performed only after field review and approval by the COR. The Contractor shall provide WAPA with handheld GIS data for locations of all grading as directed by the COR.

The Contractor shall determine the actual quantities to be graded and, regardless of the quantities graded, payment for grading for structure sites and access roads will be made on a lump sum bid in the Bidding Schedule.

4. Bidding Schedule for furnishing and installing corrugated metal pipe culverts include the following:

a. Providing corrugated metal pipe culverts with flared end sections. Corrugated metal pipe culvert sizes are listed in Table 2-4.

TABLE 2-4 – CORRUGATED METAL PIPE CULVERTS

Approximate Station from Existing Installation Plan and

Profiles

Culvert Diameter (INS) and Length (FT) Notes

East Fork Road 24 x 20 Minimum backfill of 24-inches

The Table 2-4 requirements are WAPA’s best estimate at this time. WAPA will increase or decrease the quantities (including introduction of new items) as required by final survey data.

Revised requirements will be furnished by the COR following contract award. Payment will only be made for the actual lengths and diameters of culverts furnished and installed.

5. Bidding Schedule item “Seeding” includes providing material, preparing areas to be seeded, spreading commercial fertilizer, sowing and maintaining grass seed and protecting seeded areas.

Areas to be seeded include:

a. Disturbed areas around structures, pulling and tensioning sites, except those to receive gravel surfacing.

b. Disposal areas, borrow areas and all other disturbed areas.

c. Seed: Use regionally native plant seed that when mature, are compatible with the RMR

Vegetation Management Plan for the ROW. Seed mix shall be obtained from the local USDA/NRCS office specific to the project site.

Bridger Plant Materials Center 98 South River Road Bridger, Montana 59014 Phone 406-662-3579 Fax 406-662-3428 http://plant-materials.nrcs.usda.gov/mtpmc http://www.nrcs.mt.usda.gov

d. Perform seeding during the period March 1 to June 1 or August 1 to October 1, except during unfavorable weather conditions or when soil conditions are suitable as determined by the COR.

e. Mulching: Apply mulch to seeded areas and crimp into soil within 24-hours after seeding.

6. Bidding Schedule item “Access road and Right of Way repair” includes access road rehabilitation and water bar construction in accordance with standard Drawing 41 9021 and Drawings T760-T766. Approximate quantities and locations of repairs are identified in Drawings T760-T766. All access road and Right of Way repair shall be performed only after field review and approval by the COR. The Contractor shall provide WAPA with handheld GIS data for locations of all access road repair as directed by the COR. The Contractor shall determine the actual quantities of repair and, regardless of the quantities, payment will only be made for the lump sum price bid in the Bidding Schedule.

7. Bidding Schedule item “Furnishing and installing fence grounds” includes the following:

a. Grounding the following:

(1) Metallic fences that cross under or are parallel to and within the right-of-way.

Grounding is not required at locations already having fence grounds.

(2) Metallic gates within the right-of-way.

b. The number of fence grounds in the Bidding Schedule is an estimated quantity, and payment for fence grounds will only be made for the number of grounding rods actually installed. The fence grounds are a set of two at each location.

8. Bidding Schedule item “Barbed wire gates in existing barbed wire fences” includes the following:

a. Providing barbed wire gates in accordance with Standard Drawing 41 9002 in locations directed by the COR, with the following expectations:

(1) Average gate width shall be 16-feet.

(2) The 40-inch No. 9 1/1 gauge galvanized wire stays shall be spaced at intervals not exceeding 6-feet to accommodate the different gate widths

(3) Gates shall be installed in existing barb wire fences.

9. Bidding Schedule item “Miscellaneous Sitework” includes providing the following:

a. Rock water crossing (see access map T765 for approximate location)

(1) Provide new water crossing on the access road between structures 42/8 and 43/1 on LV-YT #1, approximately twenty-five feet in length in accordance with standard Drawing 01 2005.

(2) Grading and shaping the stream beds, and furnishing, placing and compacting rock and rock surfacing material as directed by the COR.

(3) Take care to not disturb mature trees during construction.

(4) Rip Rap in the 12’ drive path shall be 6” rip rap, it is up to the contractor as to timing of placement, we recommend after construction of replacement structure is complete.

Riprap in the ditch shall be 9”-12” and placed in a manner as to not shift or move.

10. Bidding Schedule does not contain separate items for the following. Include these items in applicable Bidding Schedule items.

a. Excavated material shall be distributed evenly around the site unless otherwise directed by the COR. Excavated material from glue laminated structure sites shall be hauled off site and properly disposed of. As directed by COR.

b. Casing auger excavations, if required.

c. Unwatering auger excavations, if required.

d. Disposing of excavated material.

DIVISION 7 – WOOD POLE STRUCTURES

A. DESCRIPTION OF BID ITEMS:

1. Bidding Schedule items for wood pole structures include furnishing and installing structure grounding, structure signs, and the following:

a. Poles, cross arms, knee braces, vee braces and x-braces complete with associated hardware.

b. Poles shall be Class 2 unless otherwise noted in the Bid Schedule.

c. All 3TA-1 structures shall be built with x-braces located 8-foot below the conductor attachment.

d. Single and/or Double dead-end tees shall be used in place of pole bands in accordance with standard Drawing 41 6138. Mount such that top attachment hole is 6-inches below conductor or overhead ground wire attachment on 3TA-1 structures.

e. Replace dead-end thimble on Drawings 41 6138, 41 6153 and 41 6047 with a link and roller equal to Hughes Brothers 3154 link and 28082 roller.

f. Support hardware for overhead ground wire, optical ground wire and insulators assemblies.

Assemblies for overhead ground wire, optical ground wire and insulators are covered in Division 10.

g. Guy assemblies, including guy strain insulators and guy markers/protectors.

h. Guy anchors, including screw anchors, grouted anchors, and steel disk anchors.

i. Provide structure number signs in accordance with Drawings 41 9004 and plan and profile drawings. Mount 8-feet above ground line on right pole when looking ahead and back online.

j. Provide aerial patrol mile marker signs, and aerial patrol warning signs on structures in accordance with Drawings 41 9004, 41 9026, plan and profile drawings and following table

STRUCTURE

TYPE

AERIAL PATROL

MILE MARKER

SIGNS

AERIAL PATROL WARNING

SIGNS

DANGER

SIGNS

Wood Pole 31 2 (one on LV-YT No. 1 str 32/5, one on LV-YT No. 2 str 32/5) N/A

k. Certified copies of Data Sheets and Certifications in accordance with WAPA’s Construction

Standard 7 – Wood Poles shall be submitted.

DIVISION 8 – GLUED LAMINATED STRUCTURES

1. Bidding Schedule item “Furnishing and Installing 115-kV transmission line glued laminated wood pole structures” includes furnishing and installing backfill for structures, structure grounding, structure signs, overhead ground wire and insulator support assemblies and the following:

a. Structure, complete with poles and associated hardware in accordance with Drawings

LV-YT No. 2 6000-1, LV-YT No. 2 6000-2 and LV-YT No. 2 6000-3. Glued laminated structure embedment will vary from standard wood pole structure embedment.

b. Design requirements as follows:

(1) The glued laminated manufacturer shall determine the embedment depth. Backfill for foundations shall be thoroughly compacted, well-graded, unwashed, 2-inch minus rock unless otherwise specified. Foam backfill will not be allowed.

(2) The glued laminated manufacturer shall provide attachment hardware based on criteria in the specifications and suitable for its intended use.

(3) Install in accordance with manufacturers recommendations.

(4) Poles shall be set within 3-inches of the specified setting.

(5) Grade B Construction.

c. Submit certified copies of data and drawings in PDF format.

d. Provide structure number signs in accordance with Drawings 41 9004 and plan and profile drawings. Mount 8-feet above ground line on right pole when looking ahead and back online.

e. Provide an aerial patrol mile marker sign on glued laminated structure number 32/1 in accordance with Drawing 41 9004.

DIVISION 10 – TRANSMISSION LINE ELECTRICAL

1. Bidding Schedule items for conductor insulator assemblies include furnishing material and performing work and tests to provide insulator assemblies shown on Drawings 41 1020, 41 1021, 41 1022, 41 1023, 41 1024 and 41 1033. An estimate of material quantities for each type of structure is shown on Drawings LV YT 1 1001 and LV YT 2 1001.

For suspension clamp, item 7, on Drawing 41 1020, substitute high temperature cushioned suspension assemblies with integral armor rods suitable for operation at 392-degrees Fahrenheit or higher and equal to ACA Conductor Accessories part number ACA HAWSAL277BNC with bolt, nut and stainless-steel cotter key (BNK).

Insulators for suspension assemblies and single string tension assemblies shall be toughened glass, ANSI Class 52-3-H, except that the Combined Mechanical and Electrical Strength rating shall be 20,000-pounds. Toughened glass insulators shall be colorless or “clear” in color.

Tension assemblies shall be suitable for operation at 392-degrees Fahrenheit or higher.

In general, insulators for double string tension assemblies shall be toughened glass, ANSI Class 52-3-H. The Combined Mechanical and Electrical Strength rating shall be 20,000-pounds.

Insulators for double string tension assemblies for span over Big Horn River Canyon, lattice structures 46/3 to 46/4 on the No. 1 and No. 2 lines shall be toughened glass, ANSI Class 52-5H.

The Combined Mechanical and electrical strength rating shall be 30,000-pounds.

Toughened glass insulators shall be colorless or “clear” in color.

Line post-type insulators shall be polymer-fiberglass and gray in color.

Line post-type insulators shall comply with the characteristics of Table 10-1.

TABLE 10-1 – 115-KV LINE POST INSULATOR CHARACTERISTICS

Jumper Line Post Insulator for Wood

Structures

Jumper Line Post Insulator for Glued Laminated

Structures Base end Fitting Gain Flat

Minimum cantilever strength (foot-pounds) 500 500

Minimum 60-Hz wet flashover (kV) 255 255

Minimum positive critical impulse flashover (kV) 610 610 Minimum dry arc distance with grading ring (inches) 38.6 38.6

Minimum leakage distance (INS) 76 76

Horizontal line post insulators shall be complete with high temperature end fittings appropriate for the conductor size indicated in the Bidding Schedule and as detailed on Drawing 41 1024.

The base material for the housing (sheath) and weathersheds of polymer-fiberglass post-type insulators shall be a silicone rubber, or a silicone compound blended with an EP rubber during the batching process such that an alloy of the two (2) is formed during the final vulcanization process.

2. Bidding Schedule items for overhead ground wire assemblies include furnishing material and performing work and tests to provide overhead ground wire assemblies shown on Drawings 41 1018 and 41 1019. An estimate of material quantities for each type of structure is shown on Drawings LV-YT 1 1001 and LV-YT 2 1001.

3. Bidding Schedule items for optical overhead ground wire assemblies include furnishing material and performing work and tests to provide optical overhead ground wire assemblies shown on Drawing 41 1031. Assemblies shall include armor rod. An estimate of material quantities for each type of structure is shown on Drawings LV-YT 1 1001 and LV-YT 2 1001.

Where possible, the Contractor shall locate optical splice enclosures at tension structures.

Where splices are required to be located on suspension structures (Type HS), the Contractor shall install Type OPGW-TH deadend assemblies including guys, guy strain insulators and anchors in accordance with Drawings 41 1031 and 41 6153 to complete the OPGW installation and complete the required optical splices. Optical splice enclosures shall not be located on running angle wood pole structures. The Contractor is responsible for determining splice locations. All splicing locations (by structure number) shall be submitted to COR at the same time the construction program is submitted. The Contractor shall locate optical splice enclosures based on access roads, reel lengths and setups. Splice locations must be approved before ordering OPGW. Splice enclosures shall not be in “Environmental Requirements Areas” as shown on Drawings T760-T766.

4. Bidding Schedule item “Furnishing and installing six (6) 795-KCMIL, ACSS, 26/7 strand, standard strength “Drake” conductors” includes furnishing, stringing, splicing, repairing, sagging and clipping in the conductors; installing jumper loops; and furnishing and installing material to complete the conductor installations, except for material furnished and installed as a part of insulator assemblies and accessories. Furnish and install material including conductor, conductor joints, conductor repair sleeves and joint inhibitor compound required to complete conductor installation.

a. Furnish and install three (3) conductors, as shown on plan and profile drawings, between existing wood pole structure 30/6 and lattice structure 46/3 and between lattice structure 46/3 and Yellowtail Take-off Structure (TOS) (T.YT.LV 1) on the Lovell-Yellowtail 115-kV No. 1 transmission line and three (3) conductors, as shown on plan and profile drawings, between existing wood pole structure 30/6 and lattice structure 46/3 and between lattice structure 46/3 and Yellowtail (TOS) (T.YT.LV 2) on the Lovell-Yellowtail 115-kV No.

2 transmission line.

The Contractor shall submit all pulling locations with the stringing plan for approval prior to the start of work. Conductor pulling/tensioning sites shall be within the transmission line ROW and not be in “Environmental Requirements Areas” shown on Drawings LV-YT T760-T766 and Division 13.

Measurement for furnishing and stringing conductors will be made horizontally along the centerline of the transmission line (including approach spans).

SPECIAL CHARACTERISTICS

Completed conductor size (circular mil) 795,000 Ultimate strength, as computed for the strength of the individual strands, not less than (LBS) 25,900

Aluminum strands Number 26

Diameter (INS) 0.1749

Steel strands Number 7

Diameter (INS) 0.1360

*Allowable minus tolerance 5-percent, no upper limit on length.

5. Bidding Schedule item “Furnishing and installing six (6) 795-KCMIL, ACSS, 30/19 strand, MA3, high-strength “Mallard” conductors” includes furnishing, stringing, splicing, repairing, sagging and clipping in the conductors; installing jumper loops; and furnishing and installing material to complete the conductor installations, except for material furnished and installed as a part of insulator assemblies and accessories. Furnish and install material including conductor, conductor joints, conductor repair sleeves and joint inhibitor compound required to complete conductor installation.

a. Furnish and install three (3) conductors, as shown on plan and profile drawings, between existing lattice structures 46/3 and 46/4 on the Lovell-Yellowtail 115-kV No. 1 transmission line and three (3) conductors, as shown on plan and profile drawings, between existing lattice structures 46/3 and 46/4 on the Lovell-Yellowtail 115-kV No. 2 transmission line.

start of work. Conductor pulling/tensioning sites shall be within the transmission line ROW and not be in “Environmental Requirements Areas” shown on Drawings LV-YT T760-T766 and Division 13.

Measurement for furnishing and stringing conductors will be made horizontally along the centerline of the transmission line (including approach spans).

SPECIAL CHARACTERISTICS

Completed conductor size (circular mil) 795,000

Ultimate strength, as computed for the strength of the individual strands, not less than (LBS) 37,900

Aluminum strands Number 30

Diameter (INS) 0.1628

Steel strands Number 19

Diameter (INS) 0.0977 *Allowable minus tolerance 5-percent, no upper limit on length.

6. Bidding Schedule item “Furnishing and installing two (2) 3/8-inch diameter, extra-high strength, 7-strand steel overhead ground wires” includes furnishing, stringing, splicing, sagging and clipping in the overhead ground wire, as described; and furnishing and installing material to complete the overhead ground wire installations, except for material furnished and installed as a part of suspension and tension assemblies for overhead ground wires and accessories.

a. Furnish and install one (1) overhead ground wire, as shown on plan and profile drawings, between existing wood pole structure 30/6 and lattice steel structure 46/3 and between lattice structure 46/4 and Yellowtail TOS (T.YT.LV 1) on the Lovell-Yellowtail 115-kV No.

1 transmission line and one (1) overhead ground wire, as shown on plan and profile drawings, between existing wood pole structure 30/6 and lattice steel structure 46/3 and between lattice structure 46/4 and Yellowtail TOS (T.YT.LV 2) on the Lovell-Yellowtail 115-kV No. 2 transmission line.

start of work. Overhead ground wire pulling/tensioning sites shall be within the transmission line ROW and not be in “Environmental Requirements Areas” shown on Drawings LV-YT T760-T766 and Division 13.

7. Bidding Schedule item “Furnishing and installing two (2) 7/16-inch diameter, extra-high strength, 7-strand steel overhead ground wires” includes furnishing, stringing, splicing, sagging and clipping in the overhead ground wire, as described; and furnishing and installing material to complete the overhead ground wire installations, except for material furnished and installed as a part of suspension and tension assemblies for overhead ground wires and accessories.

a. Furnish and install one (1) overhead ground wire, as shown on plan and profile drawings, between existing lattice steel structure 46/3 and 46/4 on the Lovell-Yellowtail 115-kV No.

1 transmission line and one (1) overhead ground wire, as shown on plan and profile drawings, between existing lattice steel structure 46/3 and lattice structure 46/4 on the Lovell-Yellowtail 115-kV No. 2 transmission line.

start of work. Overhead ground wire pulling/tensioning sites shall be within the transmission line ROW and not be in “Environmental Requirements Areas” shown on Drawings LV-YT T760-T766 and Division 13.

8. Bidding Schedule item “Furnishing and installing two (2) 0.465-inch diameter, 24-fiber optical overhead ground wires” includes furnishing material including armor rods and stringing, splicing, sagging and clipping in the OPGWs to complete the optical overhead ground wire installations, except for material furnished and installed as a part of suspension and tension assemblies for optical overhead ground wires.

a. Furnish and install one (1) optical ground wire, as shown on plan and profile drawings, between existing wood pole structure 30/6 and Yellowtail TOS (T.YT.LV 1) on the Lovell- Yellowtail 115-kV No. 1 transmission line and one (1) optical ground wire, as shown on plan and profile drawings, between existing wood pole structure 30/6 and Yellowtail TOS (T.YT.LV 2) on the Lovell-Yellowtail 115-kV No. 2 transmission line.

b. The OPGW on each line shall contain 24-single-mode optical fibers. The optical fibers will be compliant with, or exceed, the requirements of ITU-T G.652.D. OPGW shall meet all IEEE-1138-1994 (r2002) standard requirements and be AFL 24-fiber type CC-57/465 (AFL Specification DNO-2940) or approved equal.

c. Stringing shall strictly adhere to procedures recommended by the manufacturer. Ensure that the allowable bending radius limitation of the fiber optic cable is not violated at any time.

d. OPGW wires shall be routed down and attached to structures using…