Project_Specifications.pdf

SOUTH DAKOTA,

NORTH DAKOTA, AND NEBRASKA

COMMUNICATION TOWERS, BUILDINGS,

AND SITE WORK

VARIOUS LOCATIONS

Solicitation No. DE-SOL-0008115 Spec. No. 15WC111528-671

SECTION C

DESCRIPTION/SPECIFICATIONS

SECTION C

DESCRIPTION/SPECIFICATIONS

COMMUNICATION TOWERS, BUILDINGS, AND SITE WORK

VARIOUS LOCATIONS

SOUTH DAKOTA, NORTH DAKOTA, AND NEBRASKA

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

B. DESCRIPTION OF WORK:

C. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule does not contain a separate item for mobilization and preparatory work

D. COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK:

COMMENCEMENT AND COMPLETION:. .................................................................................... 4 1.

SUBMITTAL APPROVAL TIME:. ................................................................................................... 4 2.

OUTAGE RESTRICTIONS: .......................................................................................................... 4 3.

CONSTRUCTION SCHEDULE RESTRICTIONS: . ....................................................................... 4 4.

E. CONSTRUCTION PROGRAM:

1. SUBMITTAL TIME:

F. MATERIAL:

1. POINTS OF DELIVERY:

G. RIGHTS-OF-WAY:

GENERAL: ................................................................................................................................... 11 1.

ACCESS EASEMENTS: ............................................................................................................ 11 2.

H. ELECTRIC POWER FOR CONSTRUCTION PURPOSES:

I. WATER FOR CONSTRUCTION PURPOSES:

J. EXPLOSIVES AND BLASTING:

K. SUBMITTALS:

GENERAL: .................................................................................................................................. 12 1.

APPROVAL TIME: ...................................................................................................................... 12 2.

TRANSMITTAL: .......................................................................................................................... 12 3.

DIVISION 2 - SITEWORK

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “PUKWANA MICROWAVE SITE”

2. Bidding Schedule item “COLMAN REPEATER”

3. Bidding Schedule item “MOE MICROWAVE SITE”

Bidding Schedule item “ORCHARD REPEATER” ...................................................................... 13 4.

Bidding Schedule item “ELLIOT SUBSTATION” ......................................................................... 15 5.

Bidding Schedule item “CLARK REPEATER” ............................................................................. 15 6.

Bidding Schedule item “WATERTOWN ALTERNATE MICROWAVE SITE” .............................. 15 7.

Bidding Schedule item “WESSINGTON SPRINGS MICROWAVE SITE” .................................. 15 8.

Bidding Schedule item “CROW LAKE REPEATER” ................................................................... 15 9.

Bidding Schedule item “BIJOU HILLS MICROWAVE SITE” ....................................................... 16 10.

Bidding Schedule item “TRIPP MICROWAVE SITE” .................................................................. 16 11.

Bidding Schedule item “TURKEY RIDGE MICROWAVE SITE” ................................................. 16 12.

Bidding Schedule item “HURON SUBSTATION” ........................................................................ 16 13.

DIVISION 3 – CONCRETE

A. GENERAL:

Material: ........................................................................................................................................ 17 1.

Western may test for Potential Reactivity of Sand and Coarse Aggregate: .............................. 17 2.

Curing: ......................................................................................................................................... 17 3.

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

Orchard Repeater Concrete Foundations ................................................................................... 17 1.

Elliot Substation Concrete Foundations ...................................................................................... 17 2.

DIVISION 14 – COMMUNICATION FACILITIES

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

The Bidding Schedule items include the following for CLIN items 0004 - 0005: ......................... 18 1.

The Bidding Schedule items include the following for CLIN items 0006 - 0013: ......................... 18 2.

B. ICE BRIDGE AND SUPPORTS:

1. ICE BRIDGE AND SUPPORTS:

C. GROUNDING SYSTEM:

1. GROUNDING SYSTEM, GENERAL:

D. ANTENNA SYSTEM:

GENERAL: .................................................................................................................................. 19 1.

ANTENNAS AND MOUNTS: ........................................................................................................ 19 2.

COMMUNICATION TRANSMISSION LINES: ............................................................................. 19 3.

E. SAFETY CLIMB SYSTEM:

SAFETY CLIMB SYSTEM, GENERAL: . ..................................................................................... 20 1.

F. TOWER INSPECTION AND MAINTENANCE:

1. GENERAL:

ANTENNA AND TOWER WORK REQUIREMENTS: .................................................................. 21 2.

DIVISION 1 – GENERAL REQUIREMENTS

A. CONTRACT REQUIREMENT:

Construct and complete antenna systems for this telecommunications project, in accordance with the Construction Contract (Standard Form 1442); the Contract Clauses; Western Construction Standards, including Standard 1 - General Requirements (July 2009), Standard 2 - Sitework (July 2009), Standard 3 - Concrete (July 2009), Standard 11 – Service Building (July 2009), Standard 13

- Environmental Quality Protection (July 2009), Standard 14 - Communication Facilities (July 2009), Standard 15 Drawings (July 2009); 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 standard specifications. Some paragraphs in the standard specifications will not apply to this job.

The standards and standard drawings are available at http://www.wapa.gov/business/buys.htm.

Western project specifications and standards are explained in Standard 1 - General Requirements, Section 1.1.1 “Standards and Project Specifications”.

B. DESCRIPTION OF WORK:

All of the work will be done at sites (total of Thirteen) located in: South Dakota (11), Nebraska (1), and North Dakota (1).

The principal components of work include:

(1) Install Government Furnished Equipment dishes and waveguide at ten communication sites.

(2) Remove antennas at eight communication sites.

(3) Provide tower inspections, maintenance and reporting at ten sites.

(4) Install ice bridge at two communication sites.

(5) Disassemble communication tower at one communication site (Pukwana Microwave Site), transport to and reassemble tower with new sections at another site (Orchard Repeater).

(6) Disassemble communication tower at one communications site (Moe Repeater), transport to and reassemble at another site (Elliot Substation).

(7) Provide safety climb system at two communication sites.

(8) Install safety climb system at two communication sites.

(9) Remove concrete foundations for communication building and tower at three communication sites.

(10) Remove communication building at one communication site.

(11) Transport communication building from one communication site to another.

(12) Provide concrete foundations for building, ice bridge, and tower at one communication site.

(13) Provide concrete foundations for ice bridge and tower at one communication site.

(14) Install GFE feed horns at five communications sites.

Paragraph “Description of Bidding Schedule Items” in Division - 14 describes the work to be performed.

C. DESCRIPTION OF BIDDING SCHEDULE ITEM:

1. Bidding Schedule does not contain a separate item for mobilization and preparatory work.

Include this item with each applicable Bidding Schedule item.

D. COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK:

COMMENCEMENT AND COMPLETION: Begin work within 10 calendar days after date of 1.

receipt of Notice to Proceed, and complete all work in South Dakota by July 15, 2015, all work in North Dakota by October 1, 2015, and all work in Nebraska by November 1, 2015.

SUBMITTAL APPROVAL TIME: Except as otherwise provided for specific submittals, 2.

Western will require 40 calendar days for review of drawings or data submitted for approval.

OUTAGE RESTRICTIONS: In addition to the restrictions listed in the standard specifications, 3.

the following outage restrictions shall apply:

a. A minimum of 24 hours advance notice is required prior to turning off VHF systems to limit

RF exposure to workers when working in close proximity to the antenna.

b. A minimum of 30 days advance notice is required prior to beginning work at Orchard Repeater.

c. Snake Butte building cannot be moved until equipment is re-located to new communication building.

d. A minimum of 24 hrs. advance notice is required prior to turning off any microwave site for antenna replacement or feed horn upgrades. Only one microwave path shall be off-line at any given time.

e. Western’s UGP environmental personnel shall be notified 3 weeks minimum before performing work at Pukwana Repeater Site.

f. A 2 week minimum notice shall be given to the COR prior to working on any site and no new dish installations shall occur during Friday, Saturday, and Sunday.

CONSTRUCTION SCHEDULE RESTRICTIONS: Work may be performed at more than one 4.

site at a time upon approval by the COR. At no time will the contractor be allowed on site without a site owner representative present unless otherwise approved by the COR.

E. CONSTRUCTION PROGRAM:

1. SUBMITTAL TIME: Submit a construction program to the COR within 15 calendar days after date of Notice to Proceed.

F. MATERIAL: Furnish all material for completing the work, except material furnished by Western as listed below:

Item Estimated Weight

(pounds)

Estimated Delivery

Date

Estimated Cost

1. Four (8) ft ultra-high performance dual polarized solid Andrew antenna and radome (AND-UHX8- 59-P3A) 1 – Turkey Ridge 1 – Huron 1 – Wessington Springs 1 – Bijou Hills

250 lbs/ea

Radome 50 lbs/ea

Crated 380 lbs comb.

At Huron Warehouse

$5,700 /ea

$ 22,800

2. Three (8) ft high performance solid Andrew antenna and radome

(AND-HP8-7W-P3A)

1 – Watertown Alternate 2 – Clark

250 lbs/ea

Crated 380 lbs

At Huron Warehouse

$2,600/ea

$7,800

3. Two (10) ft high performance solid Andrew antenna and radome

(AND-HP10-71W-P3A)

1 – Watertown Alternate 1 - Tripp

300 lbs/ea

Crated 400 lbs

At Huron

$4,500 ea

$9,000

4. Three (6 )ft ultra-high performance dual polarized solid Andrew antenna and radome (AND-UHX6- 59-P3A/L) 1 – Wessington Springs 2 – Crow Lake

200 lbs

Radome 60 lbs

Crated 300 lbs

At Huron

$4,500

$13,500

5. One (6) ft standard solid Andrew antenna and radome (AND-HP6- 71W-P3A/C) 1 - Orchard

200 lbs/ea

Crated 300 lbs

At Armour Maintenance

Facility

$3,050 ea

6. One VHF antenna mounting pipe 1 – Orchard

70 lbs/ea At Armour Maintenance

$150/ea

7. One VHF antenna 1 - Orchard

70 lbs/ea At Armour Maintenance

$75/ea

(pounds)

Estimated Delivery

Date

Estimated Cost

8. Two antenna mounting pipe 2 – Orchard Repeater (1 to future GRP, 1 to future Holt)

140 lbs/ea At Armour

$150/ea

$300

9. One antenna mounting pipe 1 – Tripp Repeater

70 lbs At Huron Warehouse

$75/ea

10. Three dual polarity feed horn assemblies for PARX6-59

(AND-520919-4)

3 – Turkey Ridge

15 lbs/ea At Huron

$1,800

$5,400

11. Four dual polarity feed horn assemblies for PARX6-59W

(LS 520919-2)

1 – Huron 1 – Wessington Springs 1 – Crow Lake 1 – Bijou Hills

15 lbs At Huron

$1,800

$7,200

12. 560 ft elliptical waveguide

(AND-EW63-F)

85 ft. – Wessington Springs 295 ft. – Crow Lake 180 ft. – Bijou Hills

0.51 lb/ft At Huron

$7/ft

$3,920

13. Twelve fixed tuned connector

(AND-163SE)

2 – Wessington Springs 6 – Crow Lake 4 – Bijou Hills

2 lbs/ea At Huron

$190/ea

$2,280

14. Six EW63 cable grips 1 – Wessington Springs

3 – Crow Lake 2 – Bijou Hills

2 lbs/ea At Huron

$339/ea

$2,034

15. 18 EW63 grounding kits 3 – Wessington Springs 9 – Crow Lake 6 – Bijou Hills

2 lbs/ea At Huron

$ 40/ea

$720

(pounds)

Estimated Delivery

Date

Estimated Cost

16. Six pressure window (AND-55001- 137) 1 – Wessington Springs 3 – Crow Lake 2 – Bijou Hills

1 lb/ea At Huron

$55/ea

$330

17. Six waveguide boot for EW63, 4 inches 1 – Wessington Springs 3 – Crow Lake 2 – Bijou Hills

2 lbs/ea At Huron

$46

$276

18. Six flex waveguide WR137

(FWG-063200-900)

1 – Wessington Springs 3 – Crow Lake 2 – Bijou Hills

5 lbs/ea At Huron

$216 ea

$1,296

19. Eleven waveguide termination loads (AND-39099-137) 2 – Wessington Springs 2 – Crow Lake 2 – Huron 1 – Bijou Hills 4 – Turkey Ridge

1 lb/ea At Huron

$121 ea

$1,331

20. Two hundred feet 7/8” 200 ft. – Orchard1

0.45 lb/ft At Huron

$10/ft

$2,000

21. Two N female connector for

LDF5-50

2 - Orchard

.8 lb At Armour Maintenance

Facility

$35

22. Four 7/8" grounding kit, Andrew 204989-2, 4 – Orchard

1.5 lbs At Armour Maintenance

$18

(pounds)

Estimated Delivery

Date

Estimated Cost

23. Fifty 7/8” Microflect donuts and hardware for 7/8” coax 50 – Orchard

1 lb/ea At Armour

$5/ea

$250

24. Six fixed tuned connector

(AND-177SE)

2 – Tripp 2 – Orchard 2 – Elliot

2 lbs/ea At Huron

(2)

At Armour

At Bismarck

Facility

$235/ea

$1,410

25. Three pressure window

(AND-55001-112)

1 – Tripp 1 – Orchard 1 – Elliot

0.15 lb/ea At Huron

(1)

Facility

$66/ea

$198

26. Three EW77 waveguide boot

(AND-WGB4-77)

1 – Tripp 1 – Orchard 1 – Elliot

2 lbs/ea At Huron

Facility

$56/ea

$168

(pounds)

Estimated Delivery

Date

Estimated Cost

27. Three flex waveguide

(FWG-083200-900)

1 – Tripp 1 – Orchard 1 – Elliot

15 lbs/ea At Huron

Facility

$306

$918

28. One hundred fifty EW63 Microflect donuts and hardware for EW63 25 – Wessington Springs 75 – Crow Lake 50 – Bijou Hills

.25 lb/ea At Huron

$750

29. One Hundred and Twenty EW77 Microflect donuts and hardware for

EW77

45 – Tripp 45 – Orchard 30 – Elliot

.25 lb/ea At Huron

(45)

(45)

Facility (30)

$600

30. 705 ft elliptical waveguide

(AND-EW77-F)

385 – Orchard 200 - Tripp 120 - Elliot

0.45 lb/ft At Huron

(385 ft)

(200 ft)

Facility (120 ft)

$ 6/ft

$ 4,230

(pounds)

Estimated Delivery

Date

Estimated Cost

31. Three EW77 cable grips 1 – Orchard 1 – Tripp 1 - Elliot

2 lbs/ea At Huron

$ 14/ea

$42

32. Nine EW77 grounding kits 3 – Orchard 3 – Tripp 3 - Elliot

2 lbs/ea At Huron

(3)

Facility

$ 50/ea

$450

33. One Kathrein SCALA MF-900B paraflector

- Elliot Substation (relocate from pole to new tower)

34. 150 ft ½” LDF4-50A

15 lbs/ft At Bismarck

$135

35. Orchard Repeater tower steel for extension, climbing ladder, anchor bolts and templates, bolting hardware, ice bridge, bridge supports, and all associated hardware.

10,600 lbs At Armour Maintenance

$22,790

36. 4 ft solid Andrew # PL4-71W

104 lbs/ea At Bismarck

$1,000

NST - No sooner than NLT - No later than

1. POINTS OF DELIVERY: All government-furnished material for the Orchard Repeater Site in

Nebraska will be stored at the Armour Maintenance Facility. The Armour Maintenance Facility is located at 39303 285th Street, Armour, SD, 57313. The contractor shall be responsible for loading the Government-furnished material from this site, delivering to the work sites, and unloading. Temporary storage sites shall be provided by the contractor.

The government-furnished material for the South Dakota sites will be stored at the Huron Warehouse. The Huron Warehouse is located at 110 Iowa NE, Huron, SD, 57350. The contractor shall be responsible for loading the Government-furnished material for these sites, delivering to the work site, and unloading. Temporary storage sites shall be provided by the contractor.

The government-furnished material for the North Dakota site will be stored at the Bismarck Warehouse. The Bismarck Warehouse is located at 707 N Bismarck Expressway, Bismarck, ND 58501. The contractor shall be responsible for loading the Government-furnished material for these sites, delivering to the work site, and unloading. Temporary storage sites shall be provided by the contractor.

G. RIGHTS-OF-WAY:

GENERAL: Orient construction methods and equipment to utilize Government-furnished 1.

rights-of way or obtain additional temporary access without additional cost to Western. Any additional temporary access acquired by the contractor shall have prior COR approval. During the contract period, Western reserves the right to use contractor-obtained access.

ACCESS EASEMENTS: Western has acquired access easements from existing public roads 2.

to the communication sites.

H. ELECTRIC POWER FOR CONSTRUCTION PURPOSES:

Electric power up to a maximum of approximately 2.4 kVA for construction purposes will be available without cost. Source of supply is located in the receptacles throughout the Site. The Contractor may furnish power for his operations by other means. Power made available by Western will be delivered as single-phase, 60 Hz, AC, at approximately 120-240 V. Negotiate with the COR for establishing electric power service.

Moe, Orchard, Pukwana, and Colman Repeater sites, the contractor will be required to make arrangements and provide all electric power for construction purposes. Provide necessary transmission lines, distribution circuits, transformers, and other electrical equipment including circuit breakers for distributing the power to the places of use. At contract completion, remove temporary electrical equipment and distribution lines.

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

I. 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.

J. EXPLOSIVES AND BLASTING:

Explosives shall not be used.

K. SUBMITTALS:

GENERAL: The Contractor shall furnish submittals via email as specified in the Construction 1.

Standards and this Project Specification. Submittals via email shall be in standard PDF or Electronic CAD “*.dwg” (AutoCAD 2010) formats. All submittals shall include the Western specification number, Western project title, and Bidding Schedule Contract Line Item Number (CLIN) and applicable division number. Multiple CLINs on a single submittal are not permitted.

A cover transmittal letter in Microsoft Word or PDF format shall be included with each email.

APPROVAL TIME: Approval time for submittals shall be in accordance with the 2.

“Commencement, Prosecution, and Completion of Work” paragraph.

TRANSMITTAL: The Contractor shall transmit submittals to the Construction Office Engineer. 3.

a. Construction Office Engineer:

Western Area Power Administration ATTN: B5620.HU, Trevor Howard 200 4th Street SW Huron, South Dakota 57350-2474 Email: THoward@wapa.gov mailto:THoward@wapa.gov

DIVISION 2 - SITEWORK

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

1. Bidding Schedule item “PUKWANA MICROWAVE SITE” includes the following:

a. Remove and relocate tower after disassembly, completely remove existing tower foundations 4’ below grade and dispose, completely remove and dispose of building foundation, and waveguide foundations.

b. Removals of existing gravel surfacing.

c. Site restoration.

d. Removals of existing fence.

e. Disposal of all materials removed.

2. Bidding Schedule item “COLMAN REPEATER” includes the following:

a. Completely remove existing tower foundations 4’ below grade and dispose, completely remove and dispose of building foundation, and waveguide foundations, completely remove tower anchor 4’ below grade at (3) locations.

d. Providing a soil-applied herbicide where gravel surfacing is placed.

3. Bidding Schedule item “MOE MICROWAVE SITE” includes the following:

a. Remove existing tower foundations 4’ below grade and dispose, completely remove and dispose of building foundation and waveguide foundations.

Bidding Schedule item “ORCHARD REPEATER” includes the following: 4.

As listed in Division I, Contractor shall provide Western COR with at least 30 days advance notice prior to beginning demolition at Orchard Repeater Site.

Western forces will remove the existing building and tower from this site prior to contract work beginning. They will leave grounding wires at ground level for future use. They will remove the electrical service from the old building to the local utility’s meter socket. Finally, Western forces will remove a portion of the fence surrounding the old building.

The removal (and disposal) of the concrete foundation for the building will be the contractor’s responsibility. The building foundation contains a narrow strip of asbestos cement mastic - an asbestos adhesive - around the perimeter. The asbestos cement mastic was originally used as a seal under the building flange. The mastic now poses a health risk if it becomes pulverized and airborne.

The contractor will be responsible for the following site work:

a. Completely remove and dispose of concrete tower base foundation.

b. Cut three guy anchors off at no less than 4’ below grade.

c. Remove the concrete building foundation by first wetting the strip of asbestos cement with a wetting agent and by performing minimal saw-cutting. Hot, windy weather may cause the mastic to dry out quickly. Keep the asbestos cement wet during demolition and loading.

d. Provide Western with Certificate of Disposal from the Nebraska landfill accepting the concrete-asbestos mixture.

e. Provide Western with photographic documentation of the asbestos removal. Take color photographs of the foundation site before, during, and after removal.

f. Relocate building from concrete foundations at Snake Butte Microwave Site, South Dakota leaving foundations. Transport building to Orchard, Nebraska (OR 0015).

g. Transport and dispose of concrete-asbestos mixture at a regulated landfill in Nebraska that accepts this type of hazardous waste.

h. Provide concrete foundation(s) for relocated tower from Pukwana Repeater.

i. Provide new 14’ x 22’ concrete foundation and anchor bolts for relocated building from Snake Butte Repeater.

j. Provide new ice bridge support foundations.

k. Provide new ground ring at tower.

l. Remove 3 barbed wire guy anchor fences (stock guards).

m. Remove and dispose of existing barbed wire fence around building and tower site.

n. Provide approximately 320 linear feet of 5-wire barbed fence around building and tower site. Dimensions of fenced area are 60’ x 100’.

o. Provide tubular pedestrian gate and 10’ steel tubular vehicle gate.

p. Provide 3/8” safety cable system

q. Site restoration.

r. Providing a soil-applied herbicide where gravel surfacing is placed.

s. Disposal of all materials removed.

Bidding Schedule item “ELLIOT SUBSTATION” includes the following: 5.

The contractor will be responsible for the following site work:

a. Provide new ice bridge support foundations.

b. Provide concrete foundation(s) for relocated tower from Moe Microwave Site, South Dakota.

c. Provide new ground ring at tower.

d. Remove, relocate and Install relocated tower from Moe Microwave Site, South Dakota, new hardware shall be used in place of all removed hardware during reassembly as shown on the drawings. Remove base section legs and climb ladder from SST2086BS, use the base section legs to replace legs on sectionSST2087. Dispose of legs and ladder from SST2087 and bracing from section SST2086BS. Remove work platform from mid-level of SST2091 and make fit on top horizontal of SST2090

e. Provide safety cable system.

f. Site restoration.

g. Providing a soil-applied herbicide where gravel surfacing is placed.

h. Disposal of all materials removed.

Bidding Schedule item “CLARK REPEATER” includes the following: 6.

a. Install Government Furnished equipment.

b. Provide material and equipment not furnished by the government to complete installation.

Bidding Schedule item “WATERTOWN ALTERNATE MICROWAVE SITE” includes the 7.

following:

Bidding Schedule item “WESSINGTON SPRINGS MICROWAVE SITE” includes the 8.

following:

Bidding Schedule item “CROW LAKE REPEATER” includes the following: 9.

Bidding Schedule item “BIJOU HILLS MICROWAVE SITE” includes the following: 10.

Bidding Schedule item “TRIPP MICROWAVE SITE” includes the following: 11.

Bidding Schedule item “TURKEY RIDGE MICROWAVE SITE” includes the following: 12.

Bidding Schedule item “HURON SUBSTATION” includes the following: 13.

Seeding includes providing material, preparing areas to be seeded, spreading commercial fertilizer, sowing and maintaining grass seed, and protecting seeded areas. Seeding includes the following:

a. Disturbed areas, except those to receive gravel surfacing as directed by the COR.

b. Seed: Use regionally native plant seed.

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 not suitable as determined by the COR.

c. Fertilizer: Commercial type as recommended by a local supplier with 50 percent of the elements derived from organic sources and compliant with state laws.

Apply fertilizer prior to seeding at a rate recommended by the local supplier for the region.

Mix thoroughly into upper 3 inches of topsoil.

d. Application: Seed specified herein shall be sown uniformly on areas specified by mechanical or hand broadcasting. Immediately after broadcasting seed, properly cover with soil to a depth not to exceed one-half inch by means of a hand rake, float, or other acceptable implements. Covering broadcast with a log chain will not be permitted.

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

Apply uniformly at a rate of 2000 pounds per acre, or 0.5 pound per square yard.

DIVISION 3 – CONCRETE

A. GENERAL:

Material: 1.

a. Cement: Type II cement. Where severe alkali conditions exist, use Type V cement.

Otherwise use Type IIA cement. Types are according to ASTM C 150.

b. Compressive Strength: 4000 psi at 28 days for substation concrete. The compressive strength may be different for microwave and transmission line structures, if they are included in substation work.

c. Water-Cement Ratio: Net water-cement ratio, exclusive of water absorbed by the aggregates, shall not exceed 0.45 by weight. Use 0.45 for NESC heavy or medium loading areas. Use 0.52 for NESC light loading areas.

d. Type A and D water-reducing and retarding admixtures may be used if approved by the COR. Delete if field office does not allow water-reducing admixtures.

Western may test for Potential Reactivity of Sand and Coarse Aggregate: Perform test for 2.

each source used. Perform tests for potential reactivity for the sand and coarse aggregate to be used by the Contractor. If the tests determine the aggregate(s) to be unsuitable as a concrete aggregate, a suitable source will be obtained by the Contractor.

CURING: Exposed, formed surfaces of concrete foundations shall be cured with water, resin-3.

base curing compound without fugitive dye, or by covering with polyethylene film.

B. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

Orchard Repeater Concrete Foundations include the following: 1.

a. Earthwork, formwork, reinforcement, material used in concrete, void forming material, drilling and grouting anchor bars, anchor bolts, curing, finishing, joints, and other related work and material needed to complete the concrete construction.

b. Concrete foundations for communications building, tower, and ice bridge supports at Orchard Repeater site.

Elliot Substation Concrete Foundations include the following: 2.

a. Earthwork, formwork, reinforcement, material used in concrete, void forming material, drilling and grouting anchor bars, anchor bolts, curing, finishing, joints, and other related work and material needed to complete the concrete construction.

b. Concrete foundations for tower and ice bridge supports at Elliot Substation.

DIVISION 14 – COMMUNICATION FACILITIES

A. DESCRIPTION OF BIDDING SCHEDULE ITEMS:

The Bidding Schedule items include the following for CLIN items 0004 - 0005: 1.

a. Provide complete grounding system.

b. Installing antenna systems materials.

c. Installing and removing antenna systems.

d. Provide feed horn installations.

e. Provide safety climb systems.

f. Providing all other required material and services to complete the communication facilities, not provided by the Government.

g. Provide tower inspection and maintenance.

h. Mobilization and preparatory work

The Bidding Schedule items include the following for CLIN items 0006 - 0013: 2.

a. Installing antenna systems materials.

b. Installing and removing antenna systems.

c. Provide feed horn installations.

d. Providing all other required material and services to complete the communication facilities, not provided by the Government.

e. Provide tower inspection and maintenance.

f. Mobilization and preparatory work

B. ICE BRIDGE AND SUPPORTS:

1. ICE BRIDGE AND SUPPORTS:

a. GENERAL: Install Government-furnished waveguide-bridge and supports from the communication tower to the building (relocated from Snake Butte) at the Orchard Repeater site.

b. ICE BRIDGE SUPPORTS: Install Elliot Substation ice bridge supports per Western standard drawings.

C. GROUNDING SYSTEM:

1. GROUNDING SYSTEM, GENERAL: Complete grounding of ice bridge supports and tower at the site as indicated on the drawings. Connect supports and towers to the ground cable risers as per the standards.

a. All grounding at Orchard Repeater site shall be provided by the contractor per Drawing OR 7100.

b. All grounding at Elliot Substation site shall be provided by the contractor per Drawing ELI

1500 and ELI 7012.

D. ANTENNA SYSTEM:

GENERAL: Western will furnish antennas, side struts, waveguide, ground kits, pressure 1.

window, 3 foot flex connector, connectors, waveguide port boots, and other associated hardware, as specified in the "Government-furnished material" paragraph of the "General Requirements" Division. The contractor shall provide any associated hardware not listed but required for installation.

Pressurization systems shall be connected to existing pressurized waveguide with connections to existing pressurization equipment being disconnected. The installation shall meet the requirements of Rural Utilities Services Bulletin 1751F-810 "Electrical Protection of Digital and Lightwave Telecommunications Equipment." Of particular interest is Appendix B "Protection for Antenna Installations." Western Communication Facilities Grounding Standards will prevail where conflict occurs.

a. WARRANTY: The installed antenna system shall be warranted free from manufacturer defect for a period of no less than three years. If a defect is discovered on any equipment within the warranty period, it may be returned to the manufacturer for free repair or replacement.

ANTENNAS AND MOUNTS: 2.

a. GENERAL: The Contractor shall install antennas and mounts in accordance with the manufacturer's instructions. For 8’ and 10’ dishes, an outer strut shall be added as well as a bottom strut on 10’ dishes.

b. MOUNTING ANTENNAS AND PIPE MOUNTS: Mount antennas and antenna pipe mounts at the height above ground, and orient in azimuth as specified in Table 14-1. Pipe mounts shall be installed so that the specified elevations of the antennas are in the center of the adjusting range of the pipe mount.

c. ANTENNA SYSTEM REMOVAL AT SOUTH DAKOTA SITES: For antenna systems that are being removed in South Dakota, all waveguide ladders, antenna pipes, and pipe mounts shall be left in place. The components to be removed include antennas, side struts, waveguide/coaxial cable, clips, hangers, grounding systems, and other associated hardware. All materials removed become the property of the contractor and shall be disposed of off Western’s right-of-way.

COMMUNICATION TRANSMISSION LINES: 3.

a. WAVEGUIDE: The Contractor shall install waveguide and other required material from the antennas to the interior of the building, including connectors on both ends of the waveguide. Install Government-furnished waveguide hoisting grips at the top of all initial waveguide vertical runs. Project waveguide into the building as directed by the COR.

Install Government-furnished waveguide boots on the interior and exterior waveguide entry panels. For 6 GHz and 7GHz waveguide and connectors, return loss shall match manufacturers’ assemblies specifications of a maximum of 1.15 VSWR (23.1 dB) on waveguide up to 300 feet in length.

b. HARDWARE AND INSTALLATION: All communication transmission line and associated hardware shall be installed per manufacturer’s instructions and applicable industry standards

(1) WAVEGUIDE FLANGES: The contractor shall install the Government-furnished waveguide flanges per manufacturer’s instructions and applicable industry standards. Install the same style of flange (rectangular) on both the antenna and radio ends of waveguide.

(2) COMMUNICATION TRANSMISSION LINE HANGERS: The contractor shall install the Government-furnished waveguide hangers per manufacturer’s instructions and applicable industry standards. Waveguide hangers shall be installed every 3’ on all towers except where existing hangers may be installed at 4’ intervals.

(3) COMMUNICATION TRANSMISSION LINE GROUNDING KITS: The contractor shall install the Government-furnished transmission line grounding kits per manufacturer’s instructions and applicable industry standards. Install grounds at the antenna, base of waveguide ladder, and building entry as per the standard for 6 GHz and 7 GHz elliptical waveguide.

E. SAFETY CLIMB SYSTEM:

SAFETY CLIMB SYSTEM, GENERAL: Provide a safety climb system for the sites Orchard 1.

Repeater and Elliot Substation. Each system shall consist of the following components.

a. Top Bracket: Provide galvanized top bracket, DBI SALA Model No. KC3PL280/6116280 or approved equal.

b. Cable: Provide 3/8” diameter, solid core, galvanized steel Lad-Saf cable, Model No.

KC36151 or approved equal. Length of cable for each tower shall be determined using the appropriate tower drawing.

c. Bottom Bracket: Provide galvanized bracket, DBI SALA Model No. KC3PL90/6100090 or approved equal.

d. Fall Arrest Devices: Provide three fall arrest devices per tower, DBI SALA Model No.

6116507 or approved equal. All devices shall be turned over to COR on-site

e. Intermediate Cable Guide: Provide galvanized intermediate cable guide, DBI SALA Model No. KC3PL330/6100400 or approved equal, at intervals as recommended by manufacturer.

F. TOWER INSPECTION AND MAINTENANCE:

1. GENERAL: There will be no Government-furnished material associated with this section of the specifications. The contractor shall perform complete tower inspection and maintenance as per the standards for all sites indicated:

SITE INSPECTION, PLUMB AND TENSION INCLUDES:

a. Site name

b. Date of inspection

c. Tower Manufacturer, model and height

d. Inspected by

e. Tower inspection

(1) Road, fence, building condition

(2) Tower, weep holes, bends, cracks, welds, rusting

(3) Loose or missing bolts, nuts, washers (hardware)

(4) Galvanizing or paint condition

(5) Waveguide ice bridge condition

(6) Inspect no less than 10% of bolted connections for proper torque

(7) Inspect climbing ladder and safety climb

(8) Lighting type, operation, replaced bulbs

(9) Antennas on tower

f. Plumb and tension report

g. Photos of site/site problems-before/after

ANTENNA AND TOWER WORK REQUIREMENTS: 2.

a. TOWER: Perform tower and antenna work items identified in Table 14-1.

TABLE 14-1 ANTENNA AND TOWER DATA

STRUCTURE NAME/LOCATION

Clark Microwave Site, Clark County, SD

Antenna Destination or Equipment Function

Antenna or Equipment Type

Frequency Band

Antenna/ Equipment Status (Add-new, Install, Remove)

Size (diameter or length in feet)

Elevation 1 (feet)

Azimuth2

(main lobe)

Watertown Alternate Solid Parabolic with radome 7 GHz Remove 8 290 099˚

Watertown Alternate Solid Parabolic with radome 7 GHz Remove 8 240 099˚

Watertown Alternate Solid Parabolic with radome 7 GHz Install 8 290 099˚

Watertown Alternate Solid Parabolic with radome 7 GHz Install 8 240 099˚

Watertown Alternate Microwave Site, Clark County, SD

Antenna or Equipment Type

Frequency Band

Antenna/ Equipment Status (Add-new, Install, Remove)

Size (diameter or length in feet)

Elevation 1 (feet)

Azimuth2

(main lobe)

Clark Solid Parabolic with radome 7 GHz Remove 10 195 279˚

Clark Solid Parabolic with radome 7 GHz Remove 8 165 279˚

Clark Solid Parabolic with radome 7 GHz Install 10 195 279˚

Clark Solid Parabolic with radome 7 GHz Install 8 165 279˚

Huron Substation, Beadle County, SD

Antenna or Equipment Type

Frequency Band

Antenna/ Equipment Status (Add-new, Install, Remove)

Size (diameter or length in feet)

Elevation 1 (feet)

Azimuth2

(main lobe) Wessington Springs Solid Parabolic with radome 6 GHz Remove 8 115 204˚

Wessington Springs Solid Parabolic with radome 6 Ghz Install 8 115 204˚

Wessington Springs Feed horn replacement 6 Ghz Remove /

Install N/A 85 204˚

Wessington Springs Repeater, Jerauld County, SD

Antenna or Equipment Type

Frequency Band

Antenna/ Equipment Status (Add-new, Install, Remove)

Size (diameter or length in feet)

Elevation 1 (feet)

Azimuth2

(main lobe) Huron Solid Parabolic with radome 6 GHz Remove 8 150 023˚

Huron Solid Parabolic with radome 6 GHz Install 8 150 023˚

Crow Lake Solid Parabolic with radome 6 GHz Remove 6 60 220˚

Crow Lake Solid Parabolic with radome 6 GHz Install 6 60 220˚

Huron Feed horn replacement 6 GHz Remove /

Install N/A 110 023˚

Crow Lake Dual polarity waveguide 6 GHz Add-new EW63 60 N/A

Crow Lake Repeater, Jerauld, SD

Antenna Destination or Equipment Function

Antenna or Equipment Type

Frequency Band

Antenna/ Equipment Status (Add-new, Install, Remove)

Size (diameter or length in feet)

Elevation 1 (feet)

Azimuth2

(main lobe)

Wessington Springs Solid Parabolic with radome 6 GHz Remove 6 20 040˚

Wessington Springs Solid Parabolic with radome 6 GHz Install 6 20 040˚

Bijou Hills Solid Parabolic with radome 6 GHz Remove 6 75 213˚

Bijou Hills Solid Parabolic with radome 6 GHz Install 6 75 213˚

Wessington Springs Dual polarity waveguide 6 GHz Add-new EW63 20 N/A

Bijou Hills Feed horn replacement 6 GHz Remove /

Install N/A 40 213˚

Bijou Hills Dual Polarity waveguide 6 GHz Add-new EW63 75 N/A

Bijou Hills Dual Polarity waveguide 6 GHz Add-new EW63 40 N/A

Bijou Hills Repeater, Brule County, SD

Antenna or Equipment Type

Frequency Band

Antenna/ Equipment Status (Add-new, Install, Remove)

Size (diameter or length in feet)

Elevation 1 (feet)

Azimuth2

(main lobe)

Crow Lake Solid Parabolic with radome 6 GHz Remove 8 60 033˚

Crow Lake Solid Parabolic with radome 6 GHz Install 8 60 033˚

Crow Lake

Feed horn replacement 6 GHz Remove /

Install N/A 20 033˚

Crow Lake Dual Polarity waveguide 6 GHz Add-new EW63 60 N/A

Crow Lake Dual Polarity waveguide 6 GHz Add-new EW63 20 N/A

Tripp Repeater, Hutchinson County, SD

Antenna or Equipment Type

Frequency Band

Antenna/ Equipment Status (Add-new, Install, Remove)

Size (diameter or length in feet)

Elevation 1 (feet)

Azimuth2

(main lobe)

Grande Prairie Solid Parabolic with radome 7 GHz

Add-new (new antenna mount)

10 150 200˚

Tyndall Grid Parabolic 2 GHz

Remove (remove mount)

6 150 148˚

Tyndall Waveguide 2 GHz Remove 7/8 coax 150 N/A

Grande Prairie Waveguide 7 GHz Add-new EW77 150 N/A

Turkey Ridge Repeater, Turner County, SD

Antenna or Equipment Type

Frequency Band

Antenna/ Equipment Status (Add-new, Install, Remove)

Size (diameter or length in feet)

Elevation 1 (feet)

Azimuth2

(main lobe)

Tripp Solid Parabolic with radome 6 GHz Remove 8 55 256˚

Tripp Solid Parabolic with radome 6 GHz Install 8 55 256˚

Tripp Feed horn replacement 6 Ghz Remove / install N/A 30 N/A

Irene Feed horn replacement 6 Ghz Remove /

Install N/A 120 N/A

Irene Feed horn replacement 6 Ghz Remove /

Install N/A 80 N/A

Note 1: Elevation for parabolic antennas is measured from the top of the foundation to center of the antenna.

Note 2: Antenna azimuth is measured in degrees east of true north.

Orchard Repeater, Holt County, NE

Antenna Destination or Equipment Function

Antenna or Equipment Type

Frequency Band

Antenna/ Equipment Status (Add-new, Install, Remove)

Size (diameter or length in feet)

Elevation1

(feet) Azimuth2

(main lobe) Grande Prairie Waveguide 7 GHz Add-new EW77 150 N/A

Grande Prairie Folded dipole VHF Add-new 20 ft 170 N/A

Orchard Coax VHF Add-new 7/8 coax 170 N/A

Grande Prairie Solid Parabolic with radome 7 Ghz Add-new 6 ft 160 ft 358˚

Safety climb Cable 3/8” 175ft

Elliot Substation, Ransom County, ND

Antenna Destination or Equipment Function

Antenna or Equipment Type

Frequency Band

Antenna/ Equipment Status (Add-new, Install, Remove)

Size (diameter or length in feet)

Elevation1

(feet) Azimuth2

(main lobe)

Central Power Paraflector 900 MHz Add-new

½” LDF4-

50A

85 129˚

WAPA 3db ¼ whip VHF Add-new

½” LDF4-

50A

32 Omni

Gwinner Solid Parabolic with radome 7 Ghz Add-new 4 85 ft 195˚

Safety climb Cable 3/8” 100ft

Message from the Administrator

At Western, we show our commitment to safety every day through the actions we take, the training we offer and the work conditions we provide. We expect the same commitment to safety from each of our contractors who provide products or services to Western. In performing work for Western, all contractors must make the right decisions to ensure that the work environment is as safe as possible.

Our safety program is based on four points:

Safety procedures or common sense must be applied by each Federal and contract employee. Safety should not be set aside to meet a project schedule or for personal convenience.

Employees and contractors must believe that they have the right and the responsibility to identify and take action to reduce, if not eliminate, hazardous work environments and hazardous work practices.

Managers and supervisors must lead by example and execute their responsibility to ensure each job is accomplished in a safe and healthy way.

Safety is a personal responsibility. Each individual makes the decision on what action to take to accomplish a task.

By integrating these principles into every task we take, together we can ensure Western is a safe place to work.

Mark A. Gabriel Administrator