Attachment_1_-_Specifications.pdf

GENERAL INFORMATION AND REQUIREMENTS

RADIO SITE UPGRADES 21 Rev. 05-21

01009 - 1

SECTION 01009

PART 1: GENERAL

1.01 SUMMARY:

A. Description of Work: Furnish labor, equipment, supplies and materials to rebuild and strengthen a chain link fence. Remove brush and all vegetation, apply weed killer, install pond line on the ground and cover with Class 5 rock. All work shall be in accordance with these specifications and drawings.

B. Location: Work under this Contract is in Mesa County, Rio Blanco County and Moffat County Colorado. These are all very remote radio sites at high elevations.

C. Gateway Radio Site: Due to landowner agreements and all of the private land at this site the Contractor will be required to complete this site first.

1. The next site to work on will be Contractor’s choice. The

Government requires that once a site it started it will be completely finished before moving on to the next one.

D. Due to the sensitive nature of these sites/equipment the Contractor will only be allowed to work at one site at a time. Working more than one place at a time would make it impossible for the Project Inspector to be onsite so it will not be allowed.

1.02 REFERENCES:

A. Referenced Specifications/Standards with Abbreviations and/or Acronyms:

Wherever the following acronyms are used in these specifications or on the drawings, they are to be construed the same as the respective expressions represented. When performing work in a specific area of expertise or trade the Contractor shall follow the most recent applicable standards and specifications. Copies of the referenced specifications/standards referred to herein may be procured by the Contractor, from the following:

B. Manuals: Any reference to any manual, by default, refers to the most current edition at the time and date that this contract is awarded copies of the referenced specifications and or standards referred to herein may be procured by the Contractor, from the following:

AASHTO American Association of State Highway and Transportation

Officials 444 N. Capitol Street, N.W., Suite 225 Washington, DC 60118

ACI American Concrete Institute

01009 - 2

P.O. Box 19150, Redford Station Detroit, MI 48219

AISC American Institute of Steel Construction 1 E Wacker Dr., Suite 3100 Chicago, IL 60601

ASTM American Society for Testing and Materials 1916 Race Street Philadelphia, PA 19103

CLFMI Chain Link Manufacturers Institute 10015 Old Columbia Rd., Suite B215 Columbia MD 21046

FCC Code of Federal Regulations Title 47 CFR Part 15

R56 Motorola Systems Center Engineering

Standards and Guidelines for Communications Sites 1301 E. Algonquin Road Schaumburg, IL 60196

USFS Spark Arrester Guide U.S. Forest Service San Dimas Technology & Development Center 444 East Bonita Avenue San Dimas, CA 91773

C. Where there is inconsistency between codes and/or where the specifications differ from manual requirements the Project Inspector will determine which shall govern.

1.03 DEFINITIONS:

A. Approvals: Approval of the submittals is an indication that the Contractor's submittals have been reviewed and that there are no objections, except as noted. Approval of deviations shall apply only to those deviations or omissions from the requirements of the drawings and specifications brought to the Project Inspector's attention in writing.

1.04 SUBMITTALS:

A. Scope: Submittals include design computations, manufacturers' literature, and samples.

B. Requirements: Refer to each specification section for a complete list of submittals required. Allow at least 10 working days for review.

The preconstruction conference will not be scheduled until all

01009 - 3 submittals have been submitted, accepted, and approved. Submittals shall be delivered to Bureau of Land Management, Engineering Field Office, Attention Dave Dickman, 2815 H Road, Grand Junction, Colorado 81506. Email delivery is also acceptable: DDICKMAN@BLM.GOV please have a meaningful subject line.

C. Quality of Submittals: Submit only high quality color prints or digital scans/images that are easy to read. Do not submit faxed copies.

Downloaded specification sheets from the manufactures web site are preferred. Poor quality and/or illegible submittals will be returned to the Contractor as “not approved” and resubmission by the Contractor will be required.

D. Identification of Submittals: Completely identify each submittal by showing at least the following information:

1. Name and address of submitter, plus name and telephone number of the individual to contact for further information.

2. Name of project as it appears in these specifications.

3. Contract number, drawing number, and specification section number to which the submittal applies.

4. Whether this is an original submittal or resubmittal.

5. Each item shall clearly note the manufacturer's name and address, trade name, product, lot, style, color, catalog designation or model number, web site address and locations of use within this contract.

1.05 CERTIFICATES OF CONFORMANCE:

A. Requirements: The Project Inspector may permit use, prior to sampling and testing, of materials when accompanied by Certificates of Conformance. Materials used on the basis of a Certificate of Conformance may be sampled and tested. Installation of materials on the basis of Certificates of Conformance shall not relieve the Contractor of responsibility for incorporating materials which conform to the requirements of the drawings and specifications. Material not conforming to those requirements will be subject to rejection, whether in place or not. Replacement of such items will be at no additional expense to the Government.

B. Format: The form of the Certificate of Conformance provided by the supplier shall be as follows:

1. The certificate shall state that the named product conforms to the Contract requirements.

2. The certificate shall be accompanied with a certified copy of the test results.

3. The certificate shall provide the name and address of the

01009 - 4 manufacturer, the testing agency and the date of tests.

4. The certificate shall set forth the means of identification which will permit field determination of the product delivered as being the product covered by the certification.

1.06 QUALITY ASSURANCE:

A. Codes and Standards: The work shall comply with codes and standards applicable to each type of work and as listed in the individual sections of these specifications. This Contract incorporates materials, applications, and tests by reference, with the same force and effect as when they were given in full text.

B. Conflict: Where a conflict occurs between reference documents and project specifications, the project specifications shall govern.

C. Measurements: Where approved manufacturer's diagrams and shop drawings give specific measurements or rough-in dimensions for equipment, these dimensions shall take precedence over dimensions indicated on the drawings.

D. Contractor shall field verify and check all measurements and existing conditions, for possible interferences with structures or existing appurtenances at the site before proceeding with this work. Pay particular attention to the Gateway radio site where the chain link fence to be repaired and strengthen was poorly constructed. Report any and all discrepancies to the Project Inspector before proceeding with any work.

1.07 DELIVERY, STORAGE, AND HANDLING:

A. Delivery: The Contractor shall protect products, incorporated into the work, from damage while in transit to the site. Products must be delivered in original unopened containers with manufacturer's name and brand designation and contents legibly indicated.

B. Storage: The Contractor shall provide temporary storage facilities for products complying with manufacturer's recommendations which will protect them from damage until installation on the project and final acceptance. The storage area shall permit access for inspection and handling.

C. Handling: The Contractor shall load and unload products in such a manner that protects them from damage.

1.08 PROJECT/SITE CONDITIONS:

A. Access to the Work: Access to the Gateway site is only thru private land with locked gates and controlled access. No work or access will

01009 - 5 take place at this site without a Government escort. Access to the work shall be coordinated through the Project Inspector with at least 2 working days’ notice. The other two sites are not as tightly controlled but still require a Government official to be present when any work is being accomplished. These sites are all locked, remotely monitored, and work in this contract will be taking place within the chain link fence enclosures as well as around the perimeter. Public or private access roads damaged by the Contractor shall be restored, at the Contractor's expense, to the same (or better) condition they were in at the commencement of work. This work will be as directed by the Project Inspector.

1. Trees and Brush: Parts of the access roads may be somewhat overgrown with trees. The Contractor shall trim back any trees or brush that may be in the line of travel. Any trees or limbs greater than 3” in diameter shall be cut up into maximum 4’ lengths and scattered along the side of the road. Brush shall be trimmed and scattered in a similar manner. Use saws designed for cutting of vegetation to accomplish all tree and brush removal or trimming.

Any vegetation broken off or damaged by Contractor shall be clean cut with a saw.

2. Access Road: All access to work in this contract shall be provided by and at the Contractor's expense. Access roads are unsurfaced roads with very steep, rocky grades and tight curves. These roads are rarely maintained or traveled. Road conditions may change if weather conditions change. The Contractor may perform minimal road maintenance to deliver materials and equipment to each site. The Contractor shall also repair any public or private roads that incur damage resulting from their operations, after notifying the Project Inspector. The Contractor shall consider access requirements, constraints, and conditions when bidding the job. Payment for road maintenance, repair, or access (i.e. removing trees or other minor obstructions that might be blocking the roadway) is incidental to other items and will not be paid for separately. The Contractor shall consider any additional costs for road maintenance or repair to be included in the bid price for other items of this Contract.

B. Environmental Considerations: Other than vegetation that has been identified for removal, the Contractor shall preserve plant life and other natural features within the work site. The work site includes the area within the work limits and the surrounding area. Vegetation needlessly damaged or destroyed by the Contractor shall be replaced by the Contractor at no expense to the Government. Work limits shall be defined as shown on the drawings and/or as staked in the field. Winds can be brisk and frequent therefore litter and discarded material generated by the construction shall be cleaned up immediately and disposed of at an approved sanitary landfill or other location in a manner approved by the Project Inspector.

1. Soil areas that have become saturated with oil, gasoline, hydraulic fluid, or other contaminates that have been previously discharged on the site shall be excavated to a depth of 18” beyond the

01009 - 6 contaminated material as approved by the Project Inspector; and backfilled with approved material. The Contractor shall remove contaminated soils from the project site and dispose of in a legal manner. The hole that resulted from this removal shall be refilled and compacted with new soil approved by the Project Inspector.

This replacement soil shall be imported from a private source and not public land.

C. Incidental Operations: Land administered by the Government may be used by the Contractor for incidental operations such as materials storage and equipment parking. These areas shall be approved in advance by the Project Inspector. Environmental considerations of the preceding paragraph shall apply.

D. Site Restoration: The work site, including those specific areas where new construction was ordered, shall be regraded, sloped and smoothed as directed by the Project Inspector. Large rocks will be relocated to a designated area within a couple of hundred feet of where they were removed from.

E. Utilities: Before starting any excavation, the Contractor shall establish the location and extent of underground utilities in the work area. Provide sufficient lead time for the “One Call” utility locaters (COLORADO811.org) to mark all utilities. Contractor must escort any and all utility locators across private land to the site. Protect utility services uncovered by excavation. Notify the Project Inspector immediately if utilities are uncovered or damaged. The cost of the repair or replacement shall be at the Contractors expense. However, the decision as to whether it is a repair or a replacement and whether or not the Contractor will be allowed to make the repairs himself will be made by the Project Inspector based upon the direction of the owner of the utility involved.

F. English Speaking: Each shift shall have a supervisor, on site, who is fully capable of fluently speaking, writing, and reading the English language. This person must be able to effectively communicate with the entire crew and the Project Inspector. The entire job will be shut down immediately when this requirement is not being met.

G. Clean Equipment: All equipment shall be thoroughly washed prior to arriving at the project site to remove all mud and debris, to prevent the spread of noxious weeds. Prior to commencement of work the Project Inspector will be given the opportunity to inspect such equipment to determine if it is acceptably clean.

1.09 SEQUENCING AND SCHEDULING:

A. Requirements: The Contractor shall be responsible for operations necessary to complete the work, including coordination with other crafts relative to the Contractor's requirements. Work shall be scheduled in such a manner as to avoid delays in overall construction and permit proper installation of work.

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1. Current Users of this Site: Expect site occupants (users) to show up unannounced to do maintenance on their equipment. Contractor shall provide reasonable accommodation, as determined by the Project Inspector, to these people to do their work.

B. Work Schedule: This schedule shall be submitted at the pre-work conference. When requested, the Contractor shall submit an updated schedule within 2 calendar days. The work schedule must be signed by the Contractor. No work will be allowed on Saturdays, Sundays, or Holidays, unless approved in writing by the Project Inspector. Such requests to work Saturdays, Sundays or Holidays must be made in writing and received by the Project Inspector at least 3 full working days before the requested work is to begin. The granting of such requests is very unlikely even if the kind of work requested does not warrant the presence of an inspector.

1. Onsite work hours of this contract shall be limited to the hours between 06:00 A.M. and 05:00 P.M. Exceptions may be made to these hours for critical or emergency work, but only on a case by case basis as approved by the Project Inspector. Requests for different hours will be made to the Project Inspector at least two working days prior.

PART 2: PRODUCTS

A. Name Brand Products: Some products in this contract have been specified by brand name and product number. If the Contractor wishes to substitute any brand name product then he/she will submit a substitution request clearly stating where in this contract the item was specified and what the product is for. It is the Contractors responsibility to prove that the requested substitution is equal to or better than the original specified item. The requested substitution must meet or exceed all specifications of the original Government specified product. The Contractor must provide a detailed submittal for review in accordance with part 1.04 SUBMITTALS in this specification section. The requested substitution may only be used if it is approved, in writing, from the Project Inspector.

PART 3: EXECUTION

3.01 PROJECT MEETINGS:

A. Pre-Work Conference:

1. Notification: A pre-work conference will be held prior to the start of work. The Project Inspector will set the meeting time and date. The meeting will be at the work site. The purpose will be to review required work, project drawings, specifications, construction schedules, payrolls, payments, and administrative provisions of the Contract.

2. Attendance: The Contractor, subcontractors and the persons responsible for coordination of the work shall be present at the

01009 - 8 meeting.

3. Presentation: The Contractor shall be prepared to summarize and explain procedures planned for the project. These should be in agreement with what was submitted in the TPEC.

4. Submittals: No prework meeting will be scheduled until all requirements of 1.04 SUBMITTALS in this specification section, have been fulfilled. However, purposely withholding submittals will not be allowed in an attempt on the Contractors part to delay the start of Contract work.

5. Work schedule: Work schedule shall be submitted at the pre-work conference.

B. Progress Meetings:

1. Location: Meetings shall be held at the project site.

2. Notification: Meetings may be called by either the Project

Inspector or the Contractor. Request shall state who should attend.

C. Final Inspection:

1. Location: Meeting shall be held at the project site.

2. Notification: The Contractor shall notify the Project Inspector in writing at least 5 working days before the completion date so the Government can schedule final inspection.

3. Attendance: The Contractor shall require the site superintendent for this job to be present during this inspection.

3.02 WORK LAYOUT:

A. Requirements: Contractor will be solely responsible for dimensional layout, alignment and elevations.

B. Work Limits: Shall be confined to the areas as staked/flagged in the field and/or as shown on the drawings. Extreme care must be taken to not damage any of the radio facilities.

3.03 GRADE CHECKING:

A. Requirements: The Contractor shall be responsible for all grade checking during the performance of the work required in this contract.

PART 4: MEASUREMENT AND PAYMENT

4.01 METHOD OF MEASUREMENT:

01009 - 9

A. Units: The work described in this section will not be measured for payment.

4.02 BASIS OF PAYMENT:

A. Payment: No direct payment for the work described under this section will be made. The Contractor shall include consideration for items described in this section, which are not specific bid items on the bid schedule, in the bid price for other items of the Contract.

END OF SECTION

CLEARING AND GRUBBING

RADIO SITE UPGRADES 21 06/21

02231 - 1

SECTION 02231

PART 1 GENERAL

1.01 SUMMARY

A. Section Includes: Clearing of all vegetation, and grubbing of stumps, roots, rocks, and debris; disposal of unutilized materials; and other incidental work related to preparation for building foundations, outside grounding, and chain link fence construction.

1.02 DEFINITIONS

A. Clearing: Clearing shall consist of the cutting of obstructions and the satisfactory disposal of all vegetation, including small trees, sticks, sagebrush, brush, grass, rocks over 3” in any dimension and rubbish occurring in the areas to be cleared.

B. Grubbing: Grubbing shall consist of the removal and disposal of below-surface stumps, roots larger than 1/2” in diameter, and matted roots from the designated grubbing areas.

1.03 PROJECT/SITE CONDITIONS

A. Work Limits: Area to be cleared and grubbed shall be within the radio communication facility chain link fence and the entire perimeter area (outside the chain link fence) 10’ in width. Scalping and scraping of topsoil during clearing operations will be required.

B. Burning of Slash/Vegetation: No burning of any materials will be permitted.

C. The only site that will be receiving the soil-cement application will be

Lookout.

PART 2 PRODUCTS

A. Mojave Vegetation Control: Use Mojave 70 EG Vegetation Control.

B. Cement: Bulk cement meeting the latest specifications for Portland cement. Portland cement type I or type II is acceptable.

C. Fiber Reinforcement: Synthetic fibers shall be fibrillated polypropylene engineered and designed for use in concrete complying with ASTM C1116/C1116M, Type III, 1/2” – 1-1/2” long.

PART 3 EXECUTION

3.01 PROTECTION

A. Utilities: Before starting work, establish the location and extent of underground utilities in the work area. Protect active utility services uncovered by clearing and grubbing operations. Notify the Project

02231 - 2

Inspector immediately if utilities are damaged. Damage to utilities shall be repaired or replaced at the Contractor's expense. Repair to damaged utilities shall be started immediately unless otherwise authorized by the Contracting Officer.

B. Facility Protection: These sites contain sensitive and expensive radio and communication equipment, cables, solar panels, propane tanks, towers, etc. Protect existing facilities at the sites from damage.

Notify the Project Inspector immediately if facilities are damaged.

Damage to facilities shall be repaired or replaced at the Contractor's expense.

C. Apply Mojave Vegetation Control after completing all clearing and grubbing operations but before laying out the pond liner. Follow all label directions

3.02 CLEARING

A. Requirements: Rocks over 3” in any dimension, trees, stumps, roots, brush, and other vegetation shall be cleared.

3.03 GRUBBING

A. Requirements: Material to be grubbed, together with logs and other organic or metallic debris not suitable for foundation purposes, shall be removed to a depth of not less than 8” below the original surface level of the ground in areas indicated to be grubbed. Depressions made by grubbing and rock removal shall be filled with suitable material and compacted to make the surface conform with the original adjacent surface of the ground. Debris not suitable for foundation purposes shall be removed and deposited outside the perimeter fence as directed by the Project Inspector.

3.04 DISPOSAL

A. Requirements: Cleared and grubbed material as well as soil containing large amounts of vegetation shall be deposited outside the perimeter fence as directed by the Project Inspector. Burning will not be permitted.

1. The Government will provide a disposal area within 300’ of the work site. The material that is removed from clearing, grubbing, and rock removal operations shall be graded and sloped as directed by the Project Inspector.

3.05 Soil-Cement

A. Lookout Radio Requirements: After completing all clearing and grubbing apply the Mojave Vegetation Control. Cleared and grubbed material as well as soil containing.

1. Steps to making soil cement:

a. after all clearing and grubbing shape area to receive cement.

02231 - 3

b. Scarify, pulverize, and pre-wet the soil.

c. The specified fiber shall be mixed with the soil and Portland cement at a rate of 1 lb. of fiber per 100 lbs. of soil – or about 3000 lbs. of fiber for this entire site. In order for the fiber to be properly mixed with the cement it will have to be mixed at the bulk plant. If the fiber is not properly mixed at the bulk plant, then it will be very difficult to impossible to get the correct mixture in the field. The contractor will be required to bring to the site soil-cement mixing trucks to mix the fiber, cement, and soil then spread back on the ground rather mixing in place.

d. Apply water and mix again. Continue mixing until Project

Inspector is satisfied that there is optimum mixing of cement and soil as well as optimum water content.

2. Equipment used to mix the soil shall be a rototiller or similar, transverse single-shaft mixer.

3. Equipment to compact the soil cement shall be a vibratory smooth drum roller.

4. Soil-cement shall be mixed to a depth of 6”.

5. Moisture while mixing shall be kept at 12%-15%. The Contract inspector will consult with the contractor on what the moisture content is at any given time and the decision on whether to add more water will be at the Project Inspectors discretion.

6. Application Rate: Apply cement at the rate of 15 lbs./ft³.

7. Time of Day to Apply Cement: Do not apply when the wind is blowing. Do not apply if it is anticipated that the wind will start blowing before cement is mixed into the soil. This site frequently has high winds so choosing a time to apply will be difficult. If Project Inspector determines that the cement has blown away before getting mixed into the soil the contractor will replace that portion that blew away at no additional cost to the Government. Contractor may have to consider working in the predawn hours before wind starts blowing. Project Inspector shall be notified 2 working days in advance as to what hours of the day will be worked.

PART 4 MEASUREMENT AND PAYMENT

4.01 METHOD OF MEASUREMENT

A. Units:

1. MOJAVE APPLICATION: Will be paid for by EA (each) radio site where the vegetation killer is applied per specifications.

02231 - 4

2. CLEARING AND GRUBBING: Will be paid for by EA (each) radio site cleared of all vegetation, rock, etc. as specified in this and other sections of this contract.

3. CEMENT: This pay item will be paid upon completion of all cement being furnished and installed as specified.

4.02 BASIS OF PAYMENT

A. Payment: Payment: Prices and payment will be full compensation for the work described in this section. Payment will be made under:

Pay Item Pay Unit

02231(10) MOJAVE APPLICATION . . . . . . . . . . . . .. . . . . . . . . . .EA

02231(20) CLEARING AND GRUBBING. . . . . . . . . . . . .. . . . . . . . . .EA

02231(30) CEMENT . . . . . . . . . . . . .. . . . . . . . . . . . . . . . TON

CRUSHED AGGREGATE

RADIO SITE UPGRADES 21 Rev. 06-21

02546 - 1

SECTION 02546

1.01 WORK INCLUDED:

A. Description: At the Wilson Radio site apply a vegetation control, laying out a flexible geomembrane 45 mil pond liner and covering it with 6” (minimum) of CDOT Class 5 crushed aggregate.

1.02 SUBMITTALS:

A. General: Submittals shall be according to Section 01009 – General

Information and Requirements.

B. CDOT Class 5 Crushed Aggregate: Submit the following test results from the approved certified testing laboratory.

1. Submit 1 copy of the grain size analysis for CDOT Class 5 as tested in accordance with AASHTO T 11, AASHTO T 27, and AASHTO T 37.

C. Certified Weight Tickets: Submit 1 copy of the certified weight tickets from the gravel pit for each load of crushed aggregate delivered to each project site. Weight tickets shall be submitted to the Project Inspector as the trucks arrive onsite. As a minimum each certified ticket will have the following information:

1. Pit name and location.

2. Truck identification number.

3. Date and time of weighing.

4. Signature of weigh master or weigher.

5. The name of the material being weighed (e.g. CDOT class 6)

6. Gross weight in tons or lbs.

7. Tare weight in tons or lbs.

8. Net weight in tons or lbs.

D. Certified Scales: Pits not having certified scales located on-site where the material is loaded, and pit personnel doing the weighing, will not be used as an aggregate source.

2.01 MATERIALS:

02546 - 2

A. Crushed Aggregate: Aggregate shall consist of hard, durable particles or fragments of stone or gravel crushed to the size and of the quality requirements for crushed aggregate materials. Aggregate shall meet the grading requirements of CDOT, Class 5 aggregate and shall be according to AASHTO M 147.

1. Crushed Aggregate Source: Crushed Aggregate shall only be obtained from a commercial gravel pit that is currently open for business on a full-time basis and has certified scales operated by the pit and located at the pit.

B. Pond Liner: Shall be a flexible geomembrane reinforced with a closely knit 9x9 weft inserted polyester scrim fully encapsulated between two layers of highly UV stabilized linear low-density polyethylene. The product shall be DURA SKRIM NQ45B 45 mil or approved equal.

3.01 CONSTRUCTION REQUIREMENTS:

A. Pond Liner: In areas where liner butts up against concrete the soil shall be excavated and disposed of to make room for the Class 5. All site drainage will be maintained. After completing all requirements of Section 02231 CLEARING AND GRUBBING and applying the vegetation control (Mojave) lay out pond liner on the area designated by the Project Inspector. Liner will be offset (inside) from the chain link fence 1.0’ and the perimeter of the liner shall be buried 8” below existing ground level.

1. Use extreme caution at fence corners so as not to damage the ground ring that is connected to each corner.

2. Lay out pond liner around buildings and concrete pads. Seam weld pond liner per manufactures recommendations. This will require a heated seam roller that is a specialized piece of equipment.

B. The CDOT Class 5 crushed aggregate, as specified, shall be placed on top of the pond liner. The pond liner is being used as a weed barrier.

1. Install aggregate to a depth of at least 6”. Do not drive on exposed pond liner. Cover liner as you go so that it does not get punctured. Use nothing heavier than a tracked skid steer and spread Class 5 evenly and carefully to avoid damage to liner. .

3.02 FIELD QUALITY CONTROL:

A. Gravel topping Material: All CDOT Class 5 aggregate shall be compacted by tracking the skid steer over the entire surface.

02546 - 3

A. Units: Crushed aggregate, will be measured and paid for by the ton of crushed aggregate compacted in place as per specifications. Certified weigh tickets shall be submitted by the Contractor immediately upon receipt, to the Government Official onsite. No payment will be made for wasting of aggregate outside the specified locations of placement.

A. Payment: Prices and payment will be full compensation for all the work and material described in this section. Payment will be made under the following line item:

02546(10) CDOT Class 5 Crushed Aggregate . . . . . . . . . . . . . . . . .TON 02546(20) Pond Liner . . . . . . . . . . . . .. . . . . . . . . . . . . . .SY

CHAIN LINK FENCES AND GATES

RADIO SITE WORK 21 05/21

02831 - 1

SECTION 02831

1.01 SUMMARY

A. Section Includes: Strengthen and repair 3 sides of an existing 8’ tall chain link fence (with barbed wire on top), radio site enclosure at a remote location known as Gateway Radio site. Part of the work includes adding 1 new line post between each existing post. Remove existing chain link fabric and replace with new 6 Gauge chain link fabric. No work shall be done on the side of the enclosure that includes the gate – work will only be done on the other three sides.

All labor, material and supplies shall be furnished and installed by the Contractor.

B. Other than existing grounding clamps, corner posts and line posts no parts or pieces of the existing fence will be reused. The chain link fabric will not be reused because it does not meet these specifications. Contractor shall remove and dispose of all unusable material at an approved landfill.

C. Winter snow and ice are building up on the existing fence and the extreme weight is dragging the fence down onto the ground. This specification section defines how to rebuild and reinforce the fence to prevent winter damage.

D. Access to this site is tightly controlled, across private land with locked gates. Therefore, the Government must always accompany the contractor while accessing and working at the site.

E. The existing corner posts on this fence are CAD welded into a ground ring that circles the entire enclosure and building. It should not be difficult for the contractor to maintain and reuse this existing grounding. Simply remove the clamps on the existing barbed wire and reattach to the new barbed wire. If any of the CAD welds on the corner posts are damaged by the Contractor, then they will be re–CAD welded at no additional cost to the Government. Also, any damage to the existing ground ring will be repaired by and at the Contractors expense. The Project inspector will help locate this existing ground ring.

1.02 DEFINITIONS:

A. Bedrock: Material shall be considered rock excavation when it consists of igneous, metamorphic, or sedimentary rock which cannot be excavated without blasting or the use of a crawler (track type) tractor having a power rating in excess of 195 FWHP, with a rear mounted heavy-duty, single tooth, ripper.

02831 - 2

1.03 SUBMITTALS

A. General: Submittals shall be according to Section 01009 - General Information and Requirements.

B. Shop Drawings: Submit 1 copy of shop drawings for all fence components to be used on this project.

C. Provide catalog cuts and other information for all products proposed for use that shows compliance of those materials with these specifications.

D. Domestic certifications: Material certifications, Made in U.S.A., Buy

American Act or Buy America.

2.01 MATERIALS

A. General: Fencing shall include chain link fabric, framework, concrete for posts, hardware, barbed wire, and all appurtenances and accessories as required for a complete installation. All fittings shall be industrial strength malleable or pressed steel, hot-dip galvanized after fabrication. Fittings shall be malleable iron, wrought iron, or pressed steel, hot dip galvanized after fabrication.

Fence fabric and tension wire shall be zinc-coated as specified.

B. Fence Fabric: Fabric height shall be 8.0’ with a tolerance of plus or minus 1”, 6 Gauge, 0.192 inches, wire break load 2170 lbf chain link copper bearing steel wire helically woven into 2” diamond mesh, coating shall be Class II, 2.0 ounces of hot-dip zinc galvanizing per square foot of uncoated wire surface, applied after weaving (GAW), conforming to ASTM A 392. Fabric shall be twisted (barbed) on the top selvage and knuckled on the bottom selvage. Steel wire for the fabric, when drawn to the wire gage specified, shall have a minimum tensile strength of 75,000 pounds per square inch when tested accordance with ASTM A-370.

KxT Selvage = Knuckle x Twist

C. Fence Posts:

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1. New posts shall be one piece steel pipe in accordance with the following table. All pipes shall be schedule 40 and conform to ASTM F-1083 and Federal specification RR-F-191/3E, Class 1, Grade A for weight and galvanized coating minimum 1.8 oz/ft² exterior and 1.8 oz/ft² interior

Post/tube Type Tubing size O.D. wall Weight SCH40 inches Inches thickness lbs/ft

Horizontal 2-1/2 2.375 0.154 3.67 rails

Line Posts 3.0 2.875 0.203 5.79

The table above is for new posts, the existing posts may have different specifications and thus require different fittings. It is the Contractors responsibility to confirm existing sizes before ordering materials/accessories/components.

D. Rails: All rails for fence shall be tubing size 2-1`/2” with 2-3/8”

(2.375) O.D., conforming to ASTM F-1083, and weighing not less than

3.67 lbs./foot, furnished complete with couplings, fittings, and attachment accessories. Rails will be continuous, one piece between rail end cups. No pipe sleeves and no swedged ends will be allowed on any part of this fence.

1. Rail End Cups: Shall be 2-3/8” https://www.jake-sales.com/2-38-Top-Rail-End-for-Chain-Link-Fence--

Use-for-2-38-Outside-Diameter-Top-Rail-Pipe--Galvanized-Pressed- Steel-Chain-Link-Rail-End_p_1537.html

Or approved equal.

E. Post Bracing Assembly: Horizontal braces shall be the same type, quality, and specification as the rails. Couplings, fittings, and attachment accessories shall be included as required.

1. Diagonal Truss Rods: Shall be 3/8” diameter galvanized steel rods with a truss tighter or turnbuckle. Truss rod assembly shall be capable of withstanding a tension of 2,000 pounds.

F. Barbed Wire Arms: Furnish galvanized ASTM F 626 minimum 1.2oz barbed wire arms, as shown on the drawings and specified herein. Arms shall consist of 1-piece pressed steel, extending at approximately a 45-degree angle, approximately 16 inches in length and the 3” in dia.

will weigh approximately 5.5 lbs. while the 4” weigh approximately 6.5 lbs., Type I 3-wire arms fitted with slots for attaching 3 strands of barbed wire and two (minimum) tightening screws. Barbed wire arms shall be of sufficient strength to withstand a 250-pound pull-down load at outer barbed wire connecting point without causing permanent deflection. The following is a link to an acceptable barbed wire arm.

Provide this type of top arm to all posts – both existing and new.

02831 - 4 https://www.hooverfence.com/chain-link-corner-barb-wire-arms-pressed-steel this is an approved barbed wire swing arm with bolts to secure the arm to the top of the post.

G. Barbed Wire: Metallic Coated Steel Barbed Wire double 12-1/2 gauge twisted strand wire, with 4-point 14 gauge round barbs spaced 5 inches on center. Wire shall be zinc-coated steel with a zinc coating Type Z, Class 3, 0.80 oz/ft, barb coating 0.70 oz/ft²according to ASTM A- 121 or aluminum coated steel according to ASTM A-585.

H. Tie wire: There are two choices for tie wire. Per ASTM F626 Minimum zinc coating 1.20 oz/ft².

1. Manually twisted 9 Gauge (0.148 in.) galvanized steel wire.

Manually twisted #6-gauge wire shall have a minimum zinc coating of 1.2 oz/ft² in accordance with ASTM A817, Type 2, Class 1.

2. Powered twisted 6 gauge: Shall be #6-gauge wire with a minimum zinc coating of 2.0 ounces per square foot in accordance with ASTM A641, Class B coating. The following link is an acceptable power twisted tie.

https://www.hooverfence.com/easy-twist-62-easy-twist-preformed-steel-tie-wires

I. Hog Rings: Use only 9 Gauge, galvanized steel, heavy duty. The use of hog rings will only be allowed when attaching the Tension Wire to the fabric. Spacing of hog rings shall not exceed 12 inches. The following link is an acceptable hog ring.

https://www.hooverfence.com/malco-products-inc-galvanized-steel-hog-rings-9-ga

J. Tension Wire, Zinc-Coated Steel: Tension wire for top and bottom edge support of fence fabric shall be No. 7 gauge, 0.177 in., marcelled tension wire complying with ASTM A824 Type II Zinc-Coated Class 5 – 2 oz/ft².

02831 - 5

1. Use beveled brace band with 5/16” standard galvanized fence bolt and wrap tension wire around bolt to secure.

K. Tension Bars: Tension (stretcher) bars shall be galvanized 1.2 oz/ft², one-piece lengths equal to the full height of fabric with a minimum cross section of 3/16” by 3/4” per ASTM F626. Provide two tension bars for each corner and pull post.

1. Tension Bar Bands: Bands shall be beveled, heavy pressed steel or malleable iron spaced not over 12” on center (min. 8 bands per tension bar) to secure bars to posts. Install as close as possible to the top and bottom ends then proportionally space the other 6 bands. The following is an acceptable band.

https://www.hooverfence.com/chain-link-beveled-brace-bands-galvanized

L. Fittings: All fence fittings shall comply with ASTM F 626. Furnish all miscellaneous material and accessories, ties, clips, anchors, extensions for barbed wire, nuts and bolts, and fastenings as required for complete installation of commercial or industrial fence applications – whichever is stronger. All bands shall be beveled. No 90° brace bands (two purpose or multi-purpose) allowed. Unless otherwise specified all ferrous items shall be hot-dip zinc-coated with an average weight of 1.2 ounces of zinc per square foot of coated surface area per ASTM 817.

M. Galvanizing: Fence framework, hardware, and appurtenances shall be hot-dip galvanized per ASTM F-1083, A-123, or A-153 as applicable.

Galvanizing of wire fabric shall be after weaving in accordance with ASTM A-392 and immersions when tested in accordance with ASTM A-239.

2.02 CONCRETE:

A. Concrete: Concrete to be used for this section will be a commercially bagged premix. Mix as directed by the manufacture. Do not over water concrete – use a metering device or bucket/container of known volume.

An acceptable product is 5000 Plus Concrete Mix as manufactured by Sakrete.

https://www.quikrete.com/productlines/concretemix.asp

1. Use only potable water to mix concrete. There is no potable water available anywhere near this site. This includes the ranch house at the bottom of the hill. Water will have to be hauled in from an outside source, at a considerable distance.

2. Concrete Vibrator: Shall be rated at 13,000 vibrations per minute with shaft rod 4.9 ft (minimum). All concrete shall be vibrated into the hole with a handheld vibrator build specifically for the purpose of consolidating/vibrating concrete.

Follow manufactures instructions for use.

02831 - 6

B. Concrete Batch Truck: The use of a concrete batch truck is allowed;

however, consider the following: After leaving the county road there is a “problem” hill for a concrete batch truck. In 2016 the contractor had to use a D-7 Dozer to pull the concrete batch truck to the top of that “problem” hill.

C. High Strength Grout: For post holes that are rock drilled to a diameter of 5” the posts will be grouted with high strength non shrink grout instead of concrete.

1. High Strength Grout shall be Sakrete Non-Shrink Construction

Grout or approved equal.

https://www.sakrete.com/products/nonshrink-construction-grout

2.03 QUALITY ASSURANCE

A. Fence contractor: Company with demonstrated successful experience installing similar projects and products in accordance with ASTM F567 and have at least 5 years’ experience .

3.01 PREPARATION:

A. Scheduling: Do not begin installation and erection before final grading, clearing, and grubbing is completed. Verify layout information for fence with Project Inspector before installation begins.

B. Bedrock: No post locations shall be moved just because rock is encountered. If bedrock is encountered when digging post holes, continue excavation to depth indicated (42”). Or if that is not possible to auger then rock drill at least 30” into bedrock, with a minimum diameter of 2” larger than outside diameter of post. This contract requires 3” posts therefore drilled holes shall be 5” in diameter. Clear post holes of all loose material.

C. Existing Fence: All existing posts will be incorporated into and used in the current design.

3.02 INSTALLATION

A. General: Construct and install fence to comply with ASTM F 567 and manufacturer's installation instructions. All material and workmanship shall conform to the Chain Link Fence Manufacturer's Institute Specification (CLFMI).

B. Installation of fencing shall be in accordance with the drawings, shop drawings, and the manufacturer's installation, instructions, and recommendations. All posts shall be plumb and rigid after installation. Alignment shall be perfectly straight between corners.

02831 - 7

Rails shall be straight and tight. Chain Link fabric shall be smooth and uniformly stretched tight and straight. Tension wires shall be pulled taut.

C. Drilled/augered holes for post footings and concrete embedment of the posts shall be as follows:

1. Line Posts: 42” deep by 12” diameter (minimum). This means that the auger must be a minimum of 12” in diameter. Float posts with 6” of concrete beneath post.

2. Dispose of augered dirt by spreading evenly across the ground within the immediate vicinity or as directed by the Project Inspector. All rocks over 3” in any dimension shall be stacked in a spot as directed by the Project Inspector.

3. Post holes shall be augered or drilled in the exact center between existing posts. No post holes shall be moved to avoid rock.

4. Off-line Post Holes: Any post hole center that is offline more than 1.5” shall be redrilled or augered to be online. Moving the post to the side of a hole that is not correctly located will not be allowed. If this is not practical, then the holes can be augered with a larger diameter auger to achieve a pipe that has at least 3” of concrete on every edge. Extra concrete to achieve proper alignment and spacing will be at no additional cost to the Government.

D. All posts shall be “floated” in concrete as shown on the drawings. On site mixing will be allowed for post concrete. Mix and place as recommended instructed by the manufacturer. There is no potable water source available. Contractor must plan to obtain a potable water source and transport it to the work site.

1. Install new posts in the center between two existing posts. Post shall be plumb, with tops properly graded and aligned.

E. Concrete Placement: No concrete shall be placed unless the Project Inspector is present. Concrete shall be placed around posts in a continuous pour. Each post shall be checked for vertical and top alignment and shall be held in position during placement and finishing operations. No Sonotubes allowed. Fill entire excavated hole with concrete even if it has become over sized due to the rocky soil and hole auger interaction.

1. Vibrate each hole to consolidate concrete and allow it to flow into hole irregularities. The Project Inspector will advise on how much to vibrate.

2. Allow concrete to cure for a minimum of 96 hours before working around the posts.

02831 - 8

3. Allow concrete to cure for a minimum of 7 days (168 hours) before installing rails or chain link fabric.

4. Allow High Strength Grout cure for a minimum of 7 days (168 hours) before installing chain link fabric

F. Rails: There shall be 3 horizontal rails, spaced as shown on the drawings, between each post all attached with specified rail ends

G. Barbed Wire Arms: Install barbed wire arms as per manufactures recommendations and these drawings. Tighten set bolts to prevent arm movement. These specified barbed wire arms shall be installed on all existing posts as well as the new posts.

1. Existing Corner posts: Provide barbed wire arms, meeting the same specifications, to the existing larger diameter corner posts. On the existing corners the posts will have to be cut to proper height to install the new barbed wire arms. This shall be accomplished on all 4 corner posts. Remove grounding wire from barbed wire then reattach to new wire/barbed wire arms without damage to the CAD welded wire.

H. Tension Wire: Shall be stretched taut, independently and prior to fabric. Use a beveled tension brace band on each end of tension wire.

Secure to each post will specified tie wire.

1. Install Tension Wire 2 inches from the bottom of the fabric.

Terminate (tie off) tension wires at each corner post.

2. Secure Tension Wire to Fabric with hog rings using spacing of no more than 8”.

3. Secure Tension Wire to every steel post using the specified tie wire.

I. Installation of Barbed Wire: Pull taut to remove sag. Install in the slots of the extension arms, and secure to a or terminal arm. Wire should be uniformly spaced. Terminate all barbed wire runs at corner swing arms.

J. Tie wire: Use to attach fabric to line posts, top, middle, and bottom rails. Attach fabric to posts and rails at intervals not greater than 12” beginning as close as possible to the ends.

1. Twist wires together so that they are perfectly symmetrical and tightened to maximal pre-tension without weakening of the wire.

Twists that are one wire spiraling around a straight wire shall not be allowed. Any twists not meeting these specifications will be removed and a proper new wire twist installed.

a. When using Round Wire Power Twisted Ties, they shall be #6 and shall be twisted with, three (3) full twists, thereby

02831 - 9 drawing up tightly around the rail or post and the chain-link fabric.

b. Manually fastened round wire ties shall be either #6 or #9 gauge galvanized steel and twisted with three (3) full twists.

K. Spacing between all newly installed posts will be the middle of existing posts. It is not anticipated that the installation of any new corner posts will be required.

L. Grounding of Fence: Chain link fences are currently grounded to the outside grounding system according to Motorola R56 Standards. Reuse the existing clamp on ground connector on the barbed wire. If new ones are required, they shall be the same type and size as the ones on the existing fence.

M. Damage to Existing Facilities: This is a fully operational radio facility. Any damage to existing facilities by the Contractor shall be repaired and/or replaced by the Contractor at the Contractor’s expense. It will be the Project Inspectors decision as to whether damage can be repaired by the contractor or if a complete replacement is required. The Contractor will still be required to pay for the damage.

N. Clean Up: Because metallic scraps can cause radio interference under the right weather conditions the Contractor shall pick up all metal pieces’ – no matter how small. Contractor is required to collect pieces of scrap wire and other metal as the fence is being worked on.

DO NOT cut ends of wire and let them fall on the ground under the guise/pretense of picking them up later. All pieces of waste metal will be picked up continuously as work progresses. Dispose of all metal scraps at an approved sanitary landfill or metal recycle facility.

NOT ACCEPTABLE

THIS IS THE CORRECT

METHOD

FOR TWISTING WIRE

02831 - 10

4.01 METHOD OF MEASUREMENT

A. Units: The work described in this section will be measured and paid for by the linear foot of chain link fence repaired and strengthened as described in these specifications and drawings.

4.02 BASIS OF PAYMENT

A. Payment: Prices and payment will be full compensation for the work described in this section. Payment will be made under:

02831(10) Chain Link Fence Repaired/Strengthened . . . . . . . . . . . . LF

ROADWAY MAINTENANCE - CRAWLER TRACTOR W/RIPPER

17302-1

SECTION 17302

ROADWAY MAINTENANCE – CRAWLER TRACTOR W/RIPPER

1.01 WORK INCLUDED:

A. Description: Work consists of preventive and corrective maintenance on existing secondary and primitive public access roads, including rebuilding and reshaping of waterbars and ditches, grading and reshaping of roadbeds, building new waterbars using a Crawler tractor w/ripper. Also, the dozer will be spreading 1-1/2” washed rock on the access road.

1.02 PROJECT CONDITIONS:

Primitive mountain road to Wilson radio site. Road is rutted and steep.

1.03 QUALITY ASSURANCE:

A. Spark Arresters: Shall meet the requirements of the U.S. Forest Service Spark Arrester Guide, May 1985.

B. Submittals: The Contractor shall furnish the Contracting Officer with a written submittal from the equipment manufacturer certifying that the…