Attachment_B.__FINAL_GLA-KNB_Specifications.pdf

GILA-KNOB 161KV TRANSMISSION

LINE REBUILD (STRUCTURES 4/9 TO 5/2)

Spec. No. 883

SECTION C

DESCRIPTION/SPECIFICATIONS

Existing Gila-Knob Structure 4/8, looking south

ARIZONA

GILA-KNOB 161-KV TRANSMISSION LINE REBUILD

(STRUCTURES 4/9 TO 5/2)

TABLE OF CONTENTS

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT

B. DESCRIPTION OF WORK

C. DESCRIPTION OF BIDDING SCHEDULE ITEM

D. COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK

E. CONSTRUCTION SCHEDULE

F. MATERIAL

G. RIGHTS-OF-WAY

H. GEOLOGIC INVESTIGATIONS

I. ELECTRIC POWER FOR CONSTRUCTION PURPOSES

J. ACCESS AND RESTRICTIONS

K. WATER FOR CONSTRUCTION PURPOSES

L. EXPLOSIVES AND BLASTING

M. SUBMITTALS

DIVISION 2 – SITEWORK

A. GENERAL

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS

DIVISION 3 – CONCRETE

A. GENERAL

B. DESCRIPTION OF PROPOSAL SCHEDULE ITEM

DIVISION 5 – TRANSMISSION LINE STEEL POLE STRUCTURES

A. GENERAL

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS

DIVISION 10 – TRANSMISSION LINE ELECTRICAL

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS

DIVISION 13 – ENVIRONMENTAL QUALITY PROTECTION

A. DESCRIPTION OF THE BID ITEMS

B. SPECIAL REQUIREMENTS

GILA-KNOB 161-KV TRANSMISSION LINE REBUILD

(STRUCTURES 4/9 TO 5/2)

Appendix A – Project Access at North Gila Substation

Appendix B – Potential Laydown Yard - Gila Monster Part AZ Gen

Appendix C – Potential Laydown Yard - DNA Farms TX LLC

Appendix D – CM-16 Transmittal Form

GILA-KNOB 161-KV TRANSMISSION LINE REBUILD (STRUCTURES 4/9 TO 5/2)

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT

Construct and complete Gila-Knob 161-kV Transmission Line Rebuild (Structure 4/6 to 5/2), in accordance with the Construction Contract (Standard Form 1442); the Contract Clauses; WAPA’s Construction Standards (September 2016), including Standard 1 – General Requirements, Standard 2 – Sitework, Standard 3 – Concrete, Standard 5 – Transmission Line Steel Pole Structures, Standard 10 – Transmission Line – Electrical, Standard 13 – Environmental Quality Protection, Standard 15 – Drawings; 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 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.

Western Area Power Administration (WAPA) Construction Standards, Standard Drawings, and Electrical Equipment Standards are available at:

https://www.wapa.gov/DoingBusiness/SellingToWestern/Pages/what-western-buys.aspx

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

B. DESCRIPTION OF WORK

This project is located near the Arizona Public Service’s (APS) North Gila Substation and includes the removal and disposal of existing ACSR conductor, overhead ground wire, and wood pole structures; installation of Government-furnished single and double-circuit steel structures and ACCR conductor; and providing ACSS conductor, optical ground wire (OPGW), and insulator assemblies as part of the 230-kV rebuild of the Gila-Knob 161-kV Transmission Line from structures 4/9 through 5/2. The project includes reattaching existing conductor and OGW, moving OGW at structure 4/8 and adding signs at structure 4/6. Two circuits of ACCR conductors and one OPGW will be installed between structures 4/9L and 4/10L; and 4/9R and 4/10R under the APS 500-kV approach spans and shall be completed within safe clearances of the energized line. These 500kV approach spans will be energized for the duration of this project.

Paragraphs “Description of Bidding Schedule Items” in Divisions 1, 2, 3, 5, 10, 13, and 15, describe the work to be performed.

The line lies on WAPA right-of-way, wedged between the Gila Gravity Canal and North Gila Substation, and is physically encroached upon by the canal waste bank on the northeast side, and the concrete fill slope (for North Gila Substation) on the southwest. Access to the project location is shown in Appendix A. The work is located in Yuma County, AZ, north of Gila Substation. Gila substation for Government-furnished material is shown on drawing GLA 0015.

C. DESCRIPTION OF BIDDING SCHEDULE ITEM

1. Bidding Schedule item “Mobilization and Preparatory Work” includes the following:

a. Perform mobilization and preparatory work in accordance with Section H of the contract clauses, not to exceed 5% of total.

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

https://www.wapa.gov/DoingBusiness/SellingToWestern/Pages/what-western-buys.aspx

c. WAPA has identified two (2) potential laydown yards which have been environmentally cleared and are shown in Appendix B and C. Contractor is not limited to these locations however; any alternative site located by the contractor will require environmental clearance. Contractor is responsible for all coordination and determination of land availability and acquisition.

D. COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK

1. COMMENCEMENT, PROSECUTION, AND COMPLETION OF THE WORK: Refer to Contract Clause 52.211-10

2. SUBMITTAL APPROVAL TIME: Submittal tracking form will be provided by WAPA. Except as otherwise provided for specific submittals, WAPA will require 30-calendar-days for review of drawings or data submitted for approval.

3. OUTAGE RESTRICTIONS: In addition to the restrictions listed in Construction Standard 1, the following outage restrictions shall apply:

a. One continuous outage will be allowed on the Gila-Knob Transmission Line between January 2, 2018 and April 6, 2018.

4. CONSTRUCTION RESTRICTIONS: The following restrictions shall apply:

a. Installation of all ACCR conductors and optical fiber overhead ground wire between structures 4/9 and 4/10 (both left and right circuits) cross under three energized 500-kV APS transmission lines. Grounding and installation procedures for stringing at energized crossings and under parallel conditions shall be used during installation of these spans.

b. All transmission line work on the Gila-Knob Transmission Line shall be completed no later than April 6, 2018. All work to be completed by May 31, 2018.

5. 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 on the Gila-Knob Transmission Line from WAPA’s system is 7641 amps, and the X/R ratio is 6.2 prior to completing construction.

b. The Contractor is responsible for determining any additional protective grounding needs for work in the vicinity of transmission lines and substations owned or operated by others.

The contractor shall verify the maximum fault current for all lines. The contractor shall adhere to requirements concerning proper grounding techniques for safety in order to perform the work. This information shall be provided to the CO before working underneath the energized lines. APS operates North Gila Substation and transmission lines in the vicinity of this project.

c. A minimum of one 1/0 AWG copper protective ground lead at a maximum length of 36 feet per phase (unless approved by the COR) is required to address the fault current available from WAPA’s system.

6. PROTECTIVE GROUND LEADS: 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”, as well as Section 1.4.14., “Grounds, Bonds, and Other Protective Devices”, and the following:

a. Protective ground leads shall be 1/0 AWG copper or larger.

b. Testing and Certification of Protective Ground Leads: Each protective ground lead shall have a permanent identification tag with unique identification number, certified wire size, and test date. Each protective ground lead shall be tested complete with connectors, in accordance with ASTM F 2249. Protective ground leads shall be re-tested and re-certified annually.

A protective ground lead without an identification tag to relate it to the annual certification of that protective ground lead shall not be used. No protective ground lead shall be longer than 36-feet, unless approved by the COR. Test results shall be submitted to the COR for approval prior to use of the grounds.

When using the DC test method, the Contractor shall submit testing information in the format shown below in the Personal Protective Grounds Test Report. When using the AC test method, the Contractor shall submit testing information in accordance with the test set manufacturer’s recommendations.

CABLE

ID

CABLE

SIZE

CABLE

CONDITION

CABLE

LENGTH

ASTM

RESISTANCE

(mΩ)

MEASURED

RESISTANCE

(mΩ)

PASS/

FAIL

FT IN

Tester’s Signature

Test Temperature ______

Test Date ___________________

E. CONSTRUCTION SCHEDULE

1. SUBMITTAL TIME: Refer to Clause 52.236.15, Schedules for Construction Contracts.

2. CONSTRUCTION SCHEDULE: Prepare and submit a Construction Schedule (Schedule) depicting the percentage of work for each line item, or portion of work scheduled for completion each month, and include an estimate of earnings by months.

a. Schedule approval shall not obligate the Government to provide funds in any manner other than as provided in the contract clauses and special contract requirements.

b. Schedule shall be revised to keep it current; enter on the Schedule the actual progress at the end of each progress payment period, or at such other intervals as directed by the

COR.

c. Schedule shall also be show the following:

(1) Sequence of operations. The duration of each task identified in the Schedule must be broken down into sections of work not to exceed 30-calendar-day increments.

Work weeks will be composed of a maximum 6 days a week unless approved by the COR. Holiday work is not allowed unless approved by the COR.

(2) Dates for commencing and completing work on the controlling features.

(3) Order issue and delivery dates for Contractor-furnished material.

(4) Dates and duration of required power outages and HLO’s.

(5) Identify critical path.

3. TWO WEEK LOOK-AHEAD SCHEDULE: During construction, the Contractor shall submit to the COR, on a weekly basis, a two-week look-ahead schedule. The schedule shall indicate the actual work to be performed by the Contractor and any Sub-contractors during the next two-weeks.

4. FORMAT AND DETAIL: Dates for each item of Government-furnished material shall be included in the submitted Construction Schedule. Construction Schedule shall be provided in a compatable Microsoft Project 2007 format and in PDF, that shall clearly show a critical path base line. Do not schedule dates earlier than the estimated delivery dates shown in the “Material” paragraph.

F. MATERIAL

Furnish all material for completing the work, except material furnished by WAPA as listed below:

ITEM

ESTIMATED

WEIGHT

(LBS)

DELIVERY

LOCATION

ESTIMATED

COST

1. 5500 feet 1,334 kcmil 54/19 MARTIN ACCR T-13 bare overhead conductor (Aluminum Conductor Composite Reinforced)

8500 Gila Substation $70,000

2. Twelve (12) Compression Deadend Terminals for 1,334 kcmil 54/19 MARTIN ACCR T-13 bare overhead conductor

50 EA Gila Substation $820 EA

3. One (1) 281N-50 (BP) galvanized steel pole structure with maintenance provisions and anchor bolt cage

90,300 Gila Substation $168,861

4. One (1) 281S-50 (BP) galvanized steel pole structure with maintenance provisions and anchor bolt cage

33,400 Gila Substation $62,458

5. Two (2) 266M-45 (BP) galvanized steel pole structure with maintenance provisions and anchor bolt cage

45,300 EA Gila Substation $84,711 EA

6. One (1) 266M-50 (BP) galvanized steel pole structure with maintenance provisions and anchor bolt cage

51,800 Gila Substation $96,866

7. One (1) 266M-65 (BP) galvanized steel pole structure with maintenance provisions and anchor bolt cage

61,800 Gila Substation $115,566

8. One (1) 266M-80 (BP) galvanized steel pole structure with maintenance provisions and anchor bolt cage

75,300 Gila Substation $140,811

9. Three hundred (300) Left Anchor Plates galvanized – Mark 1FP-5L

1.3 EA Gila Substation $6.12 EA

10. Three hundred (300) Right Anchor Plates galvanized – Mark 1FP-5R

1.3 EA Gila Substation $6.12 EA

NST – No sooner than.

NLT – No later than.

1. POINTS-OF-DELIVERY: Material furnished by WAPA has been delivered to WAPA’s facility at Gila Substation, approximately five-miles south, per Drawing GLA 0015. The Contractor shall load materials at Gila; transport material to jobsite, and unload the material at the jobsite. The Contractor shall inspect the equipment and report any damages to the COR immediately. Contractor is responsible for any damages incurred to material during transport from Gila Substation.

G. RIGHTS-OF-WAY

1. GENERAL: Transmission line right-of-way is indicated on the Plan and Profile Drawings. 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. If additional access to the transmission line is needed, the Contractor shall be responsible for contacting the landowner to obtain written permission to traverse their private road. See Division 13 for additional requirements.

The Contractor shall obtain a signed agreement from the landowner, granting permission to use their road for the duration of the project. Permission must be obtained, and the required agreements forwarded to the COR, prior to the work commencing on-site. During the contract period, WAPA reserves the right to use Contractor-obtained access.

2. ACCESS EASEMENTS: WAPA has acquired access easements from existing public roads to the transmission line, and some off-right-of-way access along the transmission line. This off-right-of-way route provides access to the transmission line structure sites. The use of the Bureau of Reclamation access road along the Gila Main Gravity Canal is permitted. Care will be taken not to damage the access road. Any damage to the canal access road will be reported to WAPA’s inspector immediately.

3. WORK ON THE RIGHT-OF-WAY:

a. General: Perform work on WAPA’s rights-of-way necessary for access to or along the transmission line. Only that excavation, dozing, or blading absolutely necessary will be allowed. Excavation, dozing, and blading for ease of travel may only be performed after field review and approval by the COR. No excavation, dozing, or blading will be allowed on the Bureau of Reclamation canal access road. Unauthorized excavation, dozing, or 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 be restored to the original contour of the land, and shall be compacted to a dry density not less than the natural in-place dry density of the surrounding earth. The use of water may be required to obtain the required density. Topsoil shall be stockpiled and spread on cuts prior to completion of work. The restored site should be compacted in accordance with Standard 2 – Sitework.

H. GEOLOGIC INVESTIGATIONS

Geologic logs of subsurface explorations included in the Project Drawings constitute the information and records of geologic investigations for the work. Locations of subsurface investigations are shown on Drawing GLA-KNB 8000. Boring Logs are shown on Drawings GLA-KNB 8001 through 8008.

Samples and cores of recovered material were not retained. Bidders shall obtain their own samples and perform tests on the material to evaluate properties which they believe to be significant. WAPA does not guarantee that the geologic information and records show the conditions that will be encountered in performing the work, but only that the geologic information and records show conditions encountered at the particular point and time the information and records were obtained.

The geologic information may not indicate variations, such as those caused by seasonal fluctuations in rainfall and other factors, which may affect the water level. The Contractor shall determine the nature of 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.

I. ELECTRIC POWER FOR CONSTRUCTION PURPOSES

The Contractor shall furnish electric power for construction purposes.

J. ACCESS AND RESTRICTIONS

The Contractor shall contact the COR if access is required on or near the canal access road adjacent to the work site.

K. WATER FOR CONSTRUCTION PURPOSES

Contractor shall furnish water for construction purposes. Make arrangements for obtaining the water, and provide for conveying the water to the points of use.

L. EXPLOSIVES AND BLASTING

Explosives shall not be used.

M. SUBMITTALS

1. GENERAL: Submittals must be provided in accordance with the Construction Standards and Project Specifications. The Contractor shall furnish submittals electronically (i.e. e-mail), unless otherwise specified by the COR. Submittals shall be sent to DSW-G5600-CS@wapa.gov in standard PDF or electronic CAD “*.dwg” (AutoCAD 2010) formats. All submittals shall include WAPA's Contract No., Project Title, Transmittal/Submittal No., and corresponding Item No. Refer to the Submittal Log for the list of required submittals. This list may not be all-inclusive, and it remains the Contractor's responsibility to ensure conformance to the individual Specifications for possible additional submittal requirements. All submittals must be submitted with the attached cover sheet “CM-16 Transmittal Form Appendix D” in Microsoft Excel or PDF. Submittals will be rejected if CM-16 Form is not attached.

In addition to the submittals required in the attached Submittal Log, the Contractor shall submit the following to DSW-G5600-CS@wapa.gov:

a. Payrolls

b. Sub-Contractor List/Forms

c. Citizenship Forms

d. Environmental Submittals

e. Request For Information (RFI)

f. Request for Equitable Adjustment (REA)

g. Any questions related to the project.

mailto:DSW-G5600-CS@wapa.gov mailto:DSW-G5600-CS@wapa.gov

A submittal is required if the item is used in the performance of this contract.

2. APPROVAL TIME: Approval time for submittals shall be in accordance with the “Commencement, Prosecution, and Completion of Work” paragraph.

3. TRANSMITTAL: The Contractor shall forward specified non-electronic submittals to the following address:

Western Area Power Administration

ATTN: G5600

P.O. Box 6457 Phoenix, AZ 85005-5313

DIVISION 2 – SITEWORK

A. GENERAL

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

a. Clearing and grubbing.

b. Grading/Site preparation in right-of-way

c. Dispose of excess waste material from excavation, not necessary or suitable for construction, as determined by COR.

d. Restore the right-of-way to its original condition

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS

1. Bidding Schedule item “Remove Existing Transmission Line” includes the following:

a. Remove electrical items and wood pole structures. Locations are on the existing Gila-Knob 161-kV Transmission Line. Items removed from the existing line may not be reused in constructing the new line, except as described in the following paragraphs:

(1) Suspension insulators removed from HS and 3A structures shall be installed on unused new steel pole structure arms as part of the steel pole installation in division 5.

(2) Existing 477 kcmil ACSR conductor shall be re-used for bonding unused ACCR conductor (between structures 4/9R and 4/10R) together and to the steel pole structure 4/10R as described in Division 10.

(3) Overhead ground wire suspension assembly at 4/8 shall be reused as described in Division 10. During re-stringing operations, conductor assemblies and overhead ground wire assemblies at structures 4/8 and 5/2 shall be reused, as approved by the COR.

(4) Copper conductor ahead on line of structure 5/2 and ACSR conductor back on line of structure 4/9 shall be re-attached to the new steel pole structures.

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. Fully remove the conductors and overhead ground wires, complete with accessories, listed in table 2-1. Contractor shall field verify the conductor stranding.

TABLE 2-1

ELECTRICAL ITEMS TO BE REMOVED

MATERIAL QUANTITY

Three (3) approximately 477-kcmil ACSR conductors 0.5-miles

Two (2) 3/8-inch, 7-strand steel overhead ground wires 0.5-miles

Conductor and Ground wire suspension assemblies 20

Conductor and Ground wire tension assemblies 10

d. Remove and dispose of the five (5) wood pole structures, complete with guys and anchors, listed in Table 2-2 located from Station 254+36 to Station 279+72, on Drawing

GLA-KNB T400.

TABLE 2-2

WOOD POLE STRUCTURES TO BE REMOVED

STRUCTURE TYPE QUANTITY

3T 1

3A 2

HS 2

DIVISION 3 – CONCRETE

A. GENERAL

1. MATERIAL:

a. Cement: Type IIA cement in accordance with ASTM C 150.

b. Compressive Strength: 4,000 psi at 28-days for concrete foundations.

c. Water-Cement Ratio: Net water-cement ratio, exclusive of water absorbed by the aggregates, shall not exceed 0.52 by weight.

d. Type A and D water-reducing and retarding admixtures may be used, if approved by the

COR.

e. Use of flyash is required in concrete, in accordance with Standard 3.

2. TEST FOR POTENTIAL REACTIVITY OF SAND AND COARSE AGGREGATE: Perform tests for potential reactivity for the sand and coarse aggregate. If the tests determine the aggregate(s) to be unsuitable as a concrete aggregate, a suitable source will be obtained by the Contractor.

B. DESCRIPTION OF BIDDING SCHEDULE ITEM

1. Bidding Schedule item “Concrete Foundations” includes providing the following:

a. Assemble Government-furnished anchor bolts into cages, as shown on the steel pole shop drawings.

b. Construct concrete foundations for the seven (7) steel pole structures listed in Table 3-1, as shown on Drawings GLA-KNB 2101 and 2102, with Government-furnished anchor bolts.

TABLE 3-1

STRUCTURES REQUIRING CONCRETE FOUNDATIONS

STRUCTURE NO.

STRUCTURE TYPE &

HEIGHT

“H”

4/9 L 266M-65 (BP)

4/9 R 266M-80 (BP)

4/10 L 266M-45 (BP)

4/10 R 266M-45 (BP)

4/11 L 266M-50 (BP)

5/1 281S-50 (BP)

5/2 281N-50 (BP)

c. Concrete construction includes earthwork, formwork, reinforcement, material used in concrete, curing, finishing, joints, and other related work and material needed to complete the required concrete construction, in accordance with Standard 3.

d. De-water auger excavations, if required.

e. Casing of auger excavations is required.

f. Measurement for quantities will be made on the basis of concrete quantities shown on

Drawings GLA-KNB 2101 and 2102. Regardless of concrete quantities actually placed, payment will be based on the quantities shown on the drawings.

DIVISION 5 – TRANSMISSION LINE STEEL POLE STRUCTURES

A. GENERAL

A total of seven (7) steel pole structures shall be installed for this project. One (1) Type 281N (BP), one (1) Type 281S (BP), and five (5) Type 266M (BP) have been delivered to Gila Substation, as shown on Drawing GLA 0015. It is contractor’s responsibility to make arrangements for transport of poles from Gila Substation to GLA-KNB project site.

All structures are base-plated and anchor-bolted on concrete foundations.

Structure components include pole shaft sections, davit arms, anchor bolts, nuts, washers, and templates, fixed climbing rung sections and rungs, connection bolts, nuts, and locknuts. Steel pole shop drawings will be furnished when they are available.

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS

1. Bidding Schedule items for “Install Anchor-bolted Government-furnished Transmission Line

Steel Pole Structures on Concrete Foundations” includes assembling and installing the steel pole structures listed in Table 5-1, complete with the following:

a. Connection bolts, nuts, and locknuts.

b. All pole shaft sections shall be jacked together in accordance with the manufacturer’s recommendations, as shown on the steel pole shop drawings.

c. Attach rungs, install fixed climbing rung sections and fall protection anchorage plates on all structures with bolts, nuts, and locknuts.

d. Suspension insulator assemblies removed from 3A and/or HS structures shall be installed on all unused conductor attachments (right circuit) of the 281N and 281S structures for vibration dampening.

e. Install the structures listed in Table 5-1 on concrete foundations. All boreholes shall have casing installed prior to pouring of foundations.

TABLE 5-1

STRUCTURES TO BE INSTALLED ON CONCRETE FOUNDATIONS

STRUCTURE NO. STRUCTURE TYPE

ESTIMATED NO. OF

POLE SHAFT

SECTIONS

4/9 L 266M-65 (BP) 4

4/9 R 266M-80 (BP) 4

4/10 L 266M-45 (BP) 2

4/10 R 266M-45 (BP) 2

4/11 L 266M-50 (BP) 4

5/1 281S-50 (BP) 2

5/2 281N-50 (BP) 2

The last two (2) digits of the type designation indicate the height (FT) portion of the structure from base plate (BP) to bottom insulator attachment.

2. Bidding Schedule Items for “Install Anchor-bolted Government-furnished Transmission Line

Steel Pole Structures on Concrete Foundations” also includes providing structure signs as follows:

a. Provide structure number signs on both the ahead and back span side of all structures in accordance with Standard Drawings 41 9027-1 and 41 9027-2. Structure numbers shall be as shown on the Plan and Profile Drawings. Fourteen (14) structure number signs are required. The Contractor shall furnish all mounting hardware.

Structure number signs and mounting provisions for all structures shall be in accordance with the 1- and 2-digit-mile number detail on Standard Drawings 41 9027-1 and 41 9027-2, except structure number signs and mounting provisions for Structures 4/9 L, 4/9 R, 4/10 L, 4/10 R, and 4/11 L, which shall be in accordance with the 3-digit-mile number detail.

b. Furnish and install two (2) aerial patrol mile marker signs on the first structure of each mile section, in accordance with Standard Drawing 41 9027-1 and the Plan and Profile Drawings. Two (2) aerial patrol mile marker signs are required for mile 5. The Contractor shall furnish all mounting hardware.

c. Furnish and install one (1) aerial patrol Warning “X” sign on steel pole in accordance with Standard Drawings 41 9028, 41 9029, and the Plan and Profile Drawings. The Contractor shall furnish all mounting hardware, mounting angle and mounting plate. The Contractor shall field weld the mounting angle to the steel pole caps in accordance with Standard Drawing 41 9028 to the appropriate structures as indicated on the Plan and Profile Drawings. All field welding shall conform to Construction Standard 5, “Field Welding”.

d. Furnish and install five (5) aerial patrol Warning Arrow signs on steel poles in accordance with Standard Drawings 41 9028, 41 9029, and the Plan and Profile Drawings. The Contractor shall furnish all mounting hardware, mounting angle and mounting plate. The Contractor shall field weld the mounting angle to the steel pole caps in accordance with Standard Drawing 41 9028 to the appropriate structures as indicated on the Plan and Profile Drawings. All field welding shall conform to Construction Standard 5, “Field Welding”.

DIVISION 10 – TRANSMISSION LINE ELECTRICAL

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS

1. Bidding Schedule item for “Furnish and Install Single-string Suspension Insulator Assemblies Type SI11-B suitable for 1,272 kcmil PHEASANT/ACSS/MA2” includes furnishing material and performing work and tests to provide insulator assemblies shown on Standard Drawing 41 1020.

Assemblies shall utilize brown porcelain discs and have a cushioned grip-type suspension with bolt, nut, and key hardware suitable for high temperature (482-degrees-Fahrenheit / 250-degrees-Celsius) continuous operation instead of conventional suspension shoes. An estimate of material quantities for each type of structure is shown on Drawing GLA-KNB 1004.

2. Bidding Schedule item for “Furnish and Install Double-string Tension Insulator Assemblies Type T21-C suitable for 1,272 kcmil PHEASANT/ACSS/MA2 Conductor” includes furnishing material and performing work and tests to provide insulator assemblies shown on Standard Drawing 41 1023. Type T21-C assemblies shall utilize brown porcelain discs and have bolt, nut, and key hardware, and be suitable for high temperature (482-degrees-Fahrenheit / 250-degrees-Celsius) continuous operation. Tension assemblies shall be furnished complete with terminal connectors for jumper loop installations. An estimate of material quantities for each type of structure is shown on Drawing GLA-KNB 1004.

3. Bidding Schedule item for “Furnish and Install Double-string Tension

Insulator Assemblies Type T21-C suitable for 1,334 kcmil MARTIN ACCR T13 Conductor” includes furnishing material and performing work and tests to provide insulator assemblies shown on Standard Drawing 41 1023. Compression deadends will be supplied as Government-furnished equipment. Type T21-C assemblies shall utilize brown porcelain discs and have bolt, nut, and key hardware, and be suitable for high temperature (482-degrees-Fahrenheit / 250-degrees-Celsius) continuous operation. Tension assemblies shall be furnished complete with terminal connectors for 1,272 kcmil PHEASANT/ACSS/MA2 jumper loop installations. An estimate of material quantities for each type of structure is shown on Drawing GLA-KNB 1004.

4. Bidding Schedule item for “Furnish and Install Double-string Tension

Insulator Assemblies Type T21-C suitable for 300 kcmil Anaconda Copper Type 178/R2 Conductor” includes furnishing material and performing work and tests to provide insulator assemblies shown on Standard Drawing 41 1023. Type T21-C assemblies shall utilize brown porcelain discs and be furnished complete with strain clamp-type terminal connectors. An estimate of material quantities for each type of structure is shown on Drawing GLA-KNB 1004.

TABLE 10-1

CONDUCTOR CHARACTERISTICS

CONDUCTOR DESIGNATION

ANACONDA 300 KCMIL COPPER

TYPE 178/R2 (HOLLOW “I-BEAM”)

Overall Diameter (IN) 0.750

Strands (number) 12

Strand Diameter (IN) 0.1507

5. Bidding Schedule item for “Furnish and Install Double-string Tension

Insulator Assemblies Type T21-C suitable for ACSR Conductor” includes furnishing material and performing work and tests to provide insulator assemblies shown on Standard Drawing 41 1023. Type T21-C assemblies shall utilize brown porcelain discs. Tension assemblies shall be furnished complete with terminal connectors for 1,272 kcmil PHEASANT/ACSS/MA2 jumper loop installations. An estimate of material quantities for each type of structure is shown on Drawing

GLA-KNB 1004.

6. Bidding Schedule item for “Furnish and Install Composite Station Post Insulator Assemblies Type SP-2 and Flange End Fittings with Suspension Clamp and Line Guards Suitable for 1,272 kcmil PHEASANT/ACSS/MA2 Conductor ” includes furnishing material and performing work and tests to provide insulator assemblies with suspension clamp and high temperature line guards shown on Standard Drawing 41 1033. An estimate of material quantities for each type of structure is shown on Drawing GLA-KNB 1004.

7. Bidding Schedule item for “Furnish and Install Type OGW-TV Assemblies for

3/8-inch-diameter High Strength 7-Strand Steel Overhead Ground wire” includes furnishing material and performing work and tests to provide overhead ground wire assemblies shown on Standard Drawing 41 1018. An estimate of material quantities for each type of structure is shown on drawing GLA-KNB 1004.

8. Bidding Schedule items for “Furnish and Install Assemblies for 0.465-inch-diameter, 48-fiber Overhead Optical Ground wire” include furnishing material and performing work and tests to provide overhead ground wire assemblies shown on Standard Drawing 41 1031. An estimate of material quantities for each type of structure is shown on Drawing GLA-KNB 1004.

9. Bidding schedule item for “Furnish and Install Three (3) 1,272 kcmil

PHEASANT/ACSS/MA2 Conductors” includes furnishing material and stringing, splicing, repairing, sagging, and clipping in the conductors; installing jumper loops;

and installing material to complete the conductor installations, except for material installed as a part of insulator assemblies and accessories. Install material, including conductor and conductor joints, if necessary. The ACSS conductors shall be installed on the left circuit only (looking ahead on line) from left arm of double circuit structures to structures with structure numbers with an L indicating left circuit.

Furnish and install high temperature joint inhibitor compound required to complete conductor installation, in accordance with the conductor manufacturer’s recommendations. Jumper loops shall be 1,272 kcmil PHEASANT/ACSS/MA2 conductor. Where strain clamps for copper conductor are used, copper to ACSS jumper loops shall be made with proper aluminum to copper clamp. Measurement for stringing conductors will be made horizontally along the centerline of the transmission line. The conductor shall be type ACSS, suitable for high temperature (482-degrees-Fahrenheit / 250-degrees-Celsius) continuous operation. The conductor shall comply with the characteristics of Table 10-2.

TABLE 10-2

CONDUCTOR CODE WORD PHEASANT/ACSS/MA2

Completed conductor size (circular mils) 1,272,000

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

34,100

Aluminum strands (number) 54

Diameter (IN) 0.1535

Steel strands (number) 19

Diameter (IN) 0.0921

10. Bidding schedule items for installing three (3) Government-Furnished 1,334 kcmil, MARTIN ACCR T13 Conductors include stringing, splicing, repairing, sagging, and clipping in the conductors, and installing material to complete the conductor installations, except for material installed as a part of insulator assemblies and accessories. ACCR MARTIN conductor shall not be used in jumper loops.

WAPA has secured the manufacturer’s representative to be on site for complete installation of ACCR conductor. Coordinate with the COR and the manufacturer’s representative for on-site construction support.

Furnish and install high-temperature joint inhibitor compound required to complete conductor installation in accordance with the conductor manufacturer’s recommendations. Other tools and accessories to be furnished by the Contractor are listed in Table 10-3A. Measurement for stringing conductors will be made horizontally along the centerline of the transmission line.

The conductor will be round wire ACCR, suitable for high temperature (410-degrees-Fahrenheit /210-degrees-Celsius) continuous operation. The conductor will comply with the characteristics of Table 10-3. Installation procedures shall be in accordance with 3M’s ACCR Field Installation Guide. This guide is included with these Specifications and is also available from 3M at http://www.3m.com/accr.

TABLE 10-3

CONDUCTOR DESIGNATION MARTIN ACCR T13

Manufacturer (3M) Descriptor ACCR_1334-T13

Completed conductor size (circular mils) 1,351,000

Completed conductor diameter (IN) 1.415

Ultimate strength (LBS) 45,300

Aluminum strands (number) 54

Diameter (IN) 0.157

Core strands (number) 19

Diameter (IN) 0.094 http://www.3m.com/accr

TABLE 10-3A

CONTRACTOR-FURNISHED TOOLS AND ACCESSORIES

Item Supplier Part

Number 3M Stock Number

1. 100 ton Press Head (Huskie Tools) EP-100WC 80-6114-4868-1

2. 10,000-psi Gas Hydraulic Pump w/Hoses (SimpleX)

G6843GU100 80-6114-4833-5

3. Grounded Roller Array Stringing Block (Sherman and Reilly)

261-030-03 80-6114-7636-9

4. 2 x 14” Hold-down Block (Sherman and Reilly)

019-060-03 80-9999-0827-2

5. Friction Tape (3M packaging = 30 rolls/case)

1755 80-6116-0426-7

6. 1334 Martin Press Die for Aluminum Body (AFL)

10048AH-ACCR 80-6114-6293-0

7. 1334 Martin Press Die for Steel Forging (AFL)

10020SH-ACCR 80-6114-6299-7

8. TG Grip (PLP) for use as Temporary Conductor Grip

TG-3035 80-6114-7743-3

9. Thimble Clevis for TG Grip (PLP) TC-7F 80-6114-7791-2

10. Thermolign Deadend (PLP) for use as Temporary Conductor Grip

TLDE-0121 80-6114-6086-8

Bond the three unused circuit conductors together by connecting phases with removed ACSR conductor and parallel groove clamps at Structure 4/10R. Ground the unused circuit by connecting a permanent ACSR jumper from the center phase to the structure crossarm center jumper with a mechanical attachment.

11. Bidding Schedule item “Special Spans” includes the following:

a. Stringing, splicing, repairing, sagging, and clipping in the existing 477 kcmil ASCR conductor. Furnish and install repair rods on ASCR conductor where existing structure 4/9 suspension clamps are removed.

The conductor shall be sagged such that the suspension insulator assemblies on existing structure 4/8 are plumb.

b. Stringing, splicing, repairing, sagging, and clipping in the existing 300 kcmil Anaconda Copper Type 178/R2 conductor. The conductor shall be sagged such that the suspension insulator assemblies on existing structure 5/3 are plumb.

c. Stringing, splicing, repairing, sagging, and clipping in the existing 3/8-inch-diameter High Strength 7-Strand Steel overhead ground wire. The overhead ground wire shall be sagged such that the overhead ground wire assemblies on existing structures 4/8 and 5/3 are plumb.

d. Locating existing vibration dampers such that there is one damper per span at the suspension structures on the existing coper conductor, ACSR conductor and steel strand overhead ground wire.

12. Bidding Schedule item “Furnish and Install 0.465-inch-diameter, 48-fiber

Overhead Optical Ground wire” includes furnishing material and stringing, splicing, sagging, and clipping in the optical overhead ground wire, 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. Coil approximately 75-feet of extra length, per OPGW wire, at each splice location with tails fixed in the optical splice enclosure.

b. Install one optical overhead ground wire, as shown on Plan and Profile Drawings, between Structures 4/9L and 5/2. The OPGW shall contain 48-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 SFPOC Type SFSJ-J-1413, or equivalent.

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 steel structures using guide clamps, as shown on drawing GLA-KNB 1006.

e. Fiber Optic Testing: Perform fiber optic testing in accordance with the following:

(1) Pre-installation Field Tests of OPGW: The OPGW will be tested by the supplier upon delivery to ensure the cable was not damaged during shipment and handling. These test results will be made available to the Contractor upon request. The Contractor may, at its own discretion, retest the reels of OPGW before taking possession for installation. In the post-installation field tests, the Contractor will be responsible to show that the end-to-end fiber link, after installation, is complete and in working condition.

(2) Post-Installation Field Tests: Contractor shall notify the COR at least seven-days prior to the post-installation field tests to enable WAPA observers to be present. Perform end-to-end tests for each fiber after all splices have been completed and all splice enclosures have been returned to their permanent position, except for those enclosures that have to be open to gain access to bare-ended fiber for the tests. These tests shall include:

(a) OTDR charts (hardcopies) at 1550 nm showing launch conditions and all other parameters used in setup (specify length of launch cable), plus time and date. These charts shall illustrate and quantify the losses at each splice, length of fiber, and stress points on the fiber. Review the traces carefully and explain unusual discontinuities in detail. OTDR measurements shall be made in both directions, and the splice loss results bi-directionally averaged. Bi-directional averaged values shall be clearly displayed in a separate table that identifies each splice location by STRUCTURE

NUMBER and direction of measurement. Bi-directionally averaged splice loss shall not exceed 0.10 dB. A one-kilometer launch fiber will be spliced to the fiber under test.

OTDR results shall be submitted for every fiber of the completed fiber system. The OTDR testing and waveforms shall be stored on an optical disk and included with the required submittals. If the OTDR testing is performed using equipment other than Wavetek or Tektronics, the Contractor shall supply WAPA with the software necessary to view the test results.

(b) Instrument Calibration: All test equipment shall be calibrated with certification traceable to the National Institute of Standards and Technology relative to their intended use.

(3) Qualifications of Splicing and Testing Personnel: The Fiber Optic

Tester shall have a minimum of one-year testing and operations experience with the OTDR test equipment used for tests required in these Specifications, and shall be able to use all necessary test equipment, without reference to test equipment instruction books, while performing the required tests specified herein. All personnel performing splicing shall be certified to do so by the Electronic Technician Association, or equivalent training program.

(4) Fiber Optic Communication Drawings and Data: All drawings and technical data required to be furnished by the Contractor shall be in English, all dimensions on the drawings shall be in feet and inches, and all weight in pounds. The drawings and data shall be complete and accurate in their content. Originals and all copies shall be legible.

WAPA shall have the right to require the Contractor to make any changes in the drawings and data that may be necessary to show the equipment furnished conforms to the requirements of these Specifications. The design and co-ordination of the fiber optic communication equipment shall be the responsibility of the Contractor, and WAPA assumes no responsibility to approve or review drawings and data that are submitted.

Table 10-4 summarizes the drawings and data required under these Specifications.

TABLE 10-4

DRAWINGS AND DATA SCHEDULE FOR FIBER OPTIC MATERIAL

TYPE OF DRAWINGS

AND DATA

DELIVERY TIME

TYPE OF

MATERIAL

QTY

TO

COR

OPGW and splice box material data

40-days after first notice to proceed

Catalog Sheets 3

Post-Installation Field Test Results

14-days after completion of tests

OTDR Charts and Disk

Certification of testing personnel

30-days prior to fiber testing

Copy of Certification

13. Bidding Schedule item “Furnish and Install Optical Splice Enclosures” includes furnishing and installing the enclosures on the various types of steel pole structures.

The optical splice enclosures shall include an optical splice organizer that shall hold at least 48-single-mode fusion splices. The organizer shall allow for sufficient bend radius for the fibers as recommended by the cable/fiber manufacturer. Each optical splice enclosure shall have the following characteristics:

a. Compatible with the sizes and types of fiber optic cables to ensure proper mechanical attachment.

b. Bullet resistant.

c. External strain relief for optical overhead ground wire and other optical cables.

d. External cable storage bracket.

e. The enclosure shall be airtight and moisture-proof. The splice enclosure shall be re-enterable and re-sealable.

f. The optical splice enclosures shall be Opti-Guard Splice Enclosure from Alcoa Fujikura, Ltd. or equal. The splice enclosures for splices along the transmission line shall have at least two (2) ports, to accept each OPGW wire. The optical splice enclosures shall be located as indicated on Drawing GLA-KNB 4207, and mounted according to GLA-KNB 1006.

14. Bidding Schedule item “Furnish and Install Vibration Dampers” includes determining the number of vibration dampers needed, furnishing material, and performing all work, including testing, required to furnish and install vibration dampers for ACSS and ACCR conductors, and optical overhead ground wires.

Vibration Damper drawing GLA-KNB 1005 contains all the wire, span and tension data necessary for a damper manufacturer to provide recommendations for quantities and spacing for dampers. The Contractor should provide this specification paragraph and the damper drawing to the manufacturer for application recommendations and final spacings for attachments. Complete the damper drawing with the spacing.

The Contractor's bid shall be for either, but not both, of the stockbridge or spiral types of dampers for the overhead ground wires.

15. Bidding Schedule item “Furnish and Install Hold-down Weights” includes furnishing and installing conductor hold-down weights where shown on the plan and profile drawings.

16. Bidding Schedule item “Furnish and Install Overhead Ground wire Support

Bracket for Existing Structure No. 4/8” includes furnishing and installing Hughes Brothers 2812 Shield Wire Support Bracket (or equal) to the east pole (right pole looking ahead) of existing structure no. 4/8. The shield wire support bracket shall be oriented with the attachment ring on the west side (left side looking ahead) of the pole and shall be installed directly below the existing pole top band. Relocate overhead ground wire to new shield wire support bracket. The existing suspension clamp and link shall be reused. The existing pole top band shall remain.

17. Bidding Schedule Item “Wood Pole Signs” includes furnishing and installing the following:

a. Two (2) aerial patrol Warning “X” signs on existing wood poles in accordance with Standard Drawings 41 9026, 41 9029, and the Plan and Profile Drawings. The Contractor shall furnish all mounting hardware.

b. One (1) aerial patrol Warning Arrow sign on existing wood pole in accordance with Standard Drawings 41 9026, 41 9029, and the Plan and Profile Drawings. The Contractor shall furnish all mounting hardware.

DIVISION 13 – ENVIRONMENTAL QUIALITY PROTECTION

A. DESCRIPTION OF THE BID ITEMS

1. The Bidding Schedule does not contain separate items for the following requirements. Include these items in the applicable Bidding Schedule items:

a. Contractor-Furnished Data (Standard 13.2)

b. Environmental Requirements (Standard 13.3)

c. Landscape Preservation (Standard 13.4)

d. Preservation of Cultural and Paleontological Resources (Standard 13.5)

e. Noxious Weed Control (Standard 13.6)

f. Recycled Materials Quantities (Standard 13.7)

g. Use of Recovered Material and Biobased Material Products (Standard

13.8)

h. Disposal of Waste Material (Standard 13.9)

i. Contractor’s Liability for Regulated Material Incidents (Standard 13.10)

j. Pollutant Spill Prevention, Notification, and Cleanup (Standard 13.11)

k. Pesticides (Standard 13.12)

l. Treated Wood Utility Poles and Crossarms Recycling or Disposal (Standard 13.13)

m. Prevention of Air Pollution (Standard 13.14)

n. Prevention of Water Pollution (Standard 13.17)

o. Conservation of Biological Resources (Standard 13.20)

B. SPECIAL REQUIREMENTS

In addition to the requirements of Standard 13, the following special conditions shall apply:

1. AIR QUALITY:

a. Contractor shall minimize land disturbance. At all proposed work areas, the Contractor shall limit the mechanical disturbance of previously undisturbed areas (including soils) to the greatest extent practicable. In new impact areas, the Contractor shall limit the mechanical disturbance to the greatest extent practicable.

b. Machinery Air Emissions: The Contractor and Sub-contractor machinery shall have, and shall use, the air emissions control devices required by Federal, State, or local regulation or ordinance.

c. Dust abatement: The Contractor shall implement BMP’s (Best

Management Practices) to minimize dust at the construction site. The Contractor shall follow suggested dust control methods listed by Yuma County Environmental Programs Division. Refer to:

http://www.yumacountyaz.gov/departments-and-services/development-services/di visions/environmental-programs/air-quality

d. Oil shall not be used as a dust suppressant. Dust suppressants shall be approved by the COR prior to use.

(1) Contractor shall minimize standing water within desert shrub-land habitat. The Contractor shall use the minimal amount of water needed to meet safety and air quality standards in order to prevent the formation of puddles that could attract wildlife to construction sites.

e. Speed:

(1) The Contractor shall limit speeds to 25-miles-per-hour on stabilized unpaved roads, and lower it if dust emissions are visible.

f. The contractor shall use existing access roads wherever possible to reach work areas. In the event that overland travel is necessary, the Contractor shall use rubber-tired vehicles.

g. The Contractor shall cover trucks when hauling soil.

h. The Contractor shall minimize soil track-out.

i. The Contractor shall stabilize the surface of soil piles.

j. The Contractor shall create windbreaks in areas highly susceptible to fugitive dust.

k. The Contractor shall re-vegetate any disturbed land not used.

l. The Contractor shall remove unused material.

2. CULTURAL:

Requires that, in the event that archaeological resources or human remains are discovered during construction of the project, all activities must cease in the immediate vicinity of the discovery, and the COR must be immediately notified. Work shall not resume until the COR has indicated in writing that the work may proceed.

3. BIOLOGY:

a. Co-ordination for Pre-construction Surveys and Avoidance.

(1) The Contractor shall…