Attachment_2_-_Specifications.pdf

GENERAL INFORMATION AND REQUIREMENTS

North Rangely Improvements 04/23

01009 - 1

SECTION 01009

PART 1: GENERAL

1.1 SUMMARY

A. Description of Work: Furnishing labor, equipment, supplies, and materials, to improve the entrance road and parking to the North Rangely OHV area. Work includes the preparation and placement pit run base aggregate, placement of aggregate surfacing material, construction of a timber OHV loading ramp, installation of steel parking delineators, concrete wheel stops, and boulders.

B. Location: Work under this Contract is in Rio Blanco County, Colorado. The work locations are shown on the drawings.

1.2 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. Copies of the referenced specifications/standards referred to herein may be procured by the Contractor, from the following:

AASHTO American Association of State Highway and Transportation

Officials 444 North Capitol Street, N.W., Suite 249 Washington, DC 20001

AASHTO M 147-65 Materials for Aggregate and Soil

Aggregate Subbase, Base and Surface Courses (R1993)

AWPA American Wood Preservers' Association

P.O. Box 286 Woodstock MD 21163

1.3 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 Contracting Officer's attention in writing.

After approval of an item, submit a substitute for approval when the approved item cannot be purchased or delivered in time to avoid delay in completion of the project.

1.4 SUBMITTALS

A. Scope: Submittals include materials compliance for preservative treated timbers and aggregate.

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B. Requirements: Refer to specifications for submittals required. Allow at least 5 working days for review. Submittals shall be delivered electronically in PDF format to bvecchia@blm.gov.

C. 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, and locations of use.

1.5 CERTIFICATES OF CONFORMANCE

A. Requirements: The Contracting Officer 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.

B. Format: The Certificate of Conformance provided by the supplier shall:

1. State that the named product conforms to the Contract requirements.

2. Either be accompanied with a certified copy of the test results, or certify that such test results are on file with the manufacturer and will be furnished to the Contracting Officer upon request.

3. Provide the name and address of the manufacturer, the testing agency, and the date of tests.

4. Set forth the means of identification which will permit field determination of the product delivered as being the product covered by the certification.

1.6 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. Equipment: Prior to ordering equipment, verify dimensions and functions of equipment proposed for.

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1.7 DELIVERY, STORAGE, AND HANDLING

A. Delivery: 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, brand designation, and contents legibly indicated.

B. Storage: Provide temporary storage facilities for products. Storage shall comply with the manufacturer's instructions. The storage area shall permit access for inspection and handling.

C. Handling: Load and unload products protecting them from damage.

1.8 PROJECT/SITE CONDITIONS

A. Access to the Work: As per Federal Acquisitions Regulations Clause 52.236-10. Access to work locations within the sites shall be limited to existing roads only.

B. Environmental Considerations: As per Federal Acquisitions Regulations

Clause 52.236-9 and 52.236-10.

C. Underground Utilities: Contractor is responsible for location of all existing underground utilities within the work area. Locations of utilities shall be established prior to excavation.

1.9 SEQUENCING AND SCHEDULING

A. Work Schedule: The schedule shall be submitted within 5 calendar days after signing the Notice to Proceed and as per Federal Acquisitions Regulations Clause 52.236-15. When requested, submit an updated schedule. At a minimum, the schedule will state the estimated timeframes for the work to be performed.

PART 2: PRODUCTS

(There are no applicable requirements.)

PART 3: EXECUTION

3.1 PROJECT MEETINGS

A. Pre-Work Conference:

1. Will be held prior to the start of work. The Contractor will be notified in advance of meeting time, date and place. The purpose will be to review required work, project drawings and specifications, construction schedules, payroll and payments, and administrative provisions of the Contract.

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

3. Be prepared to summarize and explain procedures planned for the project [and present the submittals requested in the specifications].

B. Progress Meetings:

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1. To be held at the project site, or as determined by the Contracting Officer.

2. May be called by either the Contracting Officer or the Contractor.

Request shall state who should attend and include an agenda.

C. Final Inspection:

1. To be held at the project site, or as determined by the Contracting Officer.

2. Notify the Contracting Officer in writing at least 5 working days before the completion date so the Government can schedule final inspection.

3. The superintendent shall be present during this inspection.

3.2 PREPARATION

A. Work Layout: The coordinates used for creating the layouts are site un-corrected Datum. The construction drawing was created in AutoCAD Civil 3D, version 2020.

The contractor shall be responsible for developing the construction stakeout plan for construction staking/marking for the installation and construction of all items listed in the specifications and drawings. The stakeout plan shall show the locations, and elevations if applicable, of the road and parking areas, OHV loading ramp, edges of aggregate surfacing, locations of steel parking delineators, and boulders. The contractor shall be given an electronic copy (CAD drawing) of the construction drawing for the development of the stakeout plan, or upon request given an electronic “txt” or “csv” file containing the coordinates and elevations of the finished design in place of the electronic construction drawings. Submit an electronic copy and paper printout of the completed stakeout plan for review a minimum of 5 working days prior to starting work.

B. Work Limits and Control Points: Will be established by the Contracting

Officer.

PART 4: MEASUREMENT AND PAYMENT

4.1 METHOD OF MEASUREMENT

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

4.2 BASIS OF PAYMENT

A. Payment: No direct payment for the work described under this section will be made. Consideration for this item shall be included in the bid price for other items of the Contract.

END OF SECTION

North Rangely Improvements MOBILIZATION 3/22

01505-1

SECTION 01505

MOBILIZATION

1.1 SUMMARY

A. Section Includes: Preparatory work and operations, including those necessary to the movement of personnel, equipment, supplies and incidentals to the project site; and for other work and operations which must be performed, or costs incurred prior to beginning work on the various items on the project site.

(There are no applicable requirements.)

PART 3: EXECUTION

(There are no applicable requirements.)

PART 4: MEASUREMENT AND PAYMENT

4.1 METHOD OF MEASUREMENT:

A. Units: Progress payments will be made as follows:

1. When 5% of the original Contract amount is earned from other bid items, 50% of the amount bid for mobilization or 5% of the original total Contract amount, whichever is lesser, will be paid. Upon completion of work for the project, when all equipment and materials have been removed from the work site and the site has been approved by the Contracting Officer, the remaining Contract amount for mobilization/demobilization may be invoiced.

2. The total sum of all payments shall not exceed the original

Contract amount bid for mobilization, regardless of the fact that the Contractor may have shut down the work on the project or moved equipment away from the project and then back again.

A. Payment: Payment will be made under:

Pay Item Pay Unit

01505(1) Mobilization. . . . . . . . . . . . . . . . . Lump Sum

EXCAVATION AND FILL

North Rangely Improvements

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SECTION 02315

A. Section Includes: Excavation and placement of materials as shown on the drawings.

1.2 DEFINITIONS

A. Unclassified Excavation: Consists of the material excavation and placement regardless of its nature.

B. Common Excavation: Removal of materials which can be excavated using a rear-mounted, heavy-duty, single-tooth ripping attachment mounted on a crawler tractor with a power rating of 140 net horsepower or less shall be considered common excavation.

C. Rock Excavation: Removal of material is rock excavation when it consists of igneous, metamorphic, and sedimentary rock which cannot be excavated with the use of a tractor having a power rating in excess of 170 net horsepower, with a rear-mounted, heavy-duty, single-tooth, ripping attachment.

D. Muck Excavation: Shall consist of the removal and disposal of deposits of saturated or unsaturated mixtures of soils and organic matter not suitable for foundation material regardless of moisture content.

E. Fill Material: Shall be mineral soil free from peat, frozen material, brush, trees, roots over 2 inches in diameter and rocks over 6 inches in greatest diameter obtained from site during excavation.

2.1 MATERIALS

A. Volumes: Earthwork volume totals of Cut/Fill Material between STA 0+00 and STA 1+50 as shown on the drawings. Volumes are determined by using the Grading Volume Tools in Civil 3D, 2020. Volumes are measured between existing ground and pit run base aggregate subgrade surface. Aggregate volumes are not included. Shrink/swell of materials was not considered.

Volumes of materials are shown on the drawings.

B. Fill Material: Shall be obtained from the common excavation. Material from excavation shall be used unless it contains ice or frozen earth, debris, high moisture content, or is specified in other sections to be replaced.

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3.1 PREPARATION

A. Clearing and Grubbing: Areas within the proposed design area limits that contain vegetation shall be thoroughly cleared and stripped of vegetative matter, rocks, and other objectionable materials.

B. Grades: When not otherwise indicated shall be level, or uniform slopes.

Abrupt change in slopes shall be rounded. Grades shall slope away from structures. At intersections to existing roads or parking, grade uniformly to blend into the adjacent existing grades and/or slopes.

C. Preparation for Grading of Road and Parking Areas: Grade/excavate to allow for the pit run base material between STA 0+00 and STA 1+50. Slopes, grades, and elevations as shown on the drawings are approximate. Contractor shall match as closely as possible those slopes, grade, and elevations while balancing the existing cut/fill volumes of material.

3.2 INSTALLATION

A. Fill Material: Shall be spread over the full width of the cross section to a maximum loose thickness of 8 inches and shall be compacted as specified in paragraphs 3.3 A below, before the next layer is spread. The in-place materials shall be free of lenses, pockets, streaks, or layers of materials differing substantially in texture or gradation from the surrounding materials.

B. Frozen Material: Shall not be placed, nor be placed upon a frozen surface.

3.3 FIELD QUALITY CONTROL

A. Compaction: Immediately following final spreading and smoothing, each layer shall be compacted full width. Compaction shall be accomplished by means of a vibratory roller compactor, minimum 48-inch drum width, and minimum 10,000 centrifugal force. A minimum of three passes shall be made over the entire width of the area, and until the material visible stops compacting. Add or remove water when necessary to obtain compaction.

be made. Consideration for this item shall be included in the bid price for other items of the Contract.

EXCAVATION AND FILL FOR STRUCTURES

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SECTION 02322

EXCAVATION AND FILL FOR STRUCTURES

A. Section Includes: Excavating, backfilling, and compacting for structures.

A. Loading Ramp Fill Material: Fill Material for the loading ramp shall be Class 6 aggregate as described in Section 02730.

3.1 INSTALLATION

A. Loading Ramp: Place fill material in horizontal layers full area of the interior of the loading ramp to a maximum loose thickness of 8 inches.

Compact each lift as per 3.2 A. Compact the final course as per Section 02315,

3.3 A.

3.2 COMPACTION

A. General: Immediately following final spreading and smoothing, each lift shall be compacted full length and width. Compaction shall be accomplished with the use of a mechanical rammer compacter (Jumping Jack). Compact a minimum of three passes over the entire area of the lift, and/or until the material visibly stops compacting. Add or remove water as needed to achieve optimum compaction.

Costs associated with this will have to be included within the bid price of other bid items.

be made.

AGGREGATE BASE COURSE

North Rangely Improvements 04/2023

02722 - 1

SECTION 02722

1.1 SUMMARY

A. Section Includes: Furnishing, placing, and compacting pit run aggregate on a prepared surface.

A. Pit Run Base Aggregate: CDOT Class 3 or approved equal. Shall consist of hard, durable particles or fragments of crushed or natural gravel.

Materials that break up when alternately frozen and thawed or wetted and dried shall not be used.

PART 3 EXECUTION

3.1 PREPARATION

A. Requirements: Per Section 02315.

3.2 INSTALLATION

A. General: The material shall be placed on the prepared surface near the final location and compacted in layers of the thickness of 12 inches as shown on the drawings. If more than one layer is required, each layer shall be shaped and compacted before the succeeding layer is placed. Stockpiling of material for later placement shall not be allowed.

1. Placing shall be from vehicles equipped to distribute the material in a continuous uniform layer or windrow. The layer or windrow shall be of such size that when spread and compacted, the finished layer shall have the required thickness.

2. When hauling is done over previously placed material, hauling equipment shall be routed uniformly as possible over the entire surface of the constructed layers.

B. Spreading: When uniformly mixed, the mixture shall be spread smoothly for compaction to the required thickness.

C. Compacting: Immediately following final spreading and smoothing, each layer shall be compacted to the full width by approved compaction equipment.

Rolling shall progress gradually from the sides to the center, parallel to the centerline of the road, or parking area, and shall continue until the surface has been rolled. Irregularities or depressions that develop shall be corrected by loosening the material at these places. Add or remove material until the surface is uniform. Add or remove water as need to achieve optimum compaction.

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D. Completed Course Thickness: Shall not vary more than 1 inch from the thickness required.

A. Units: The work described in this section will be by the ton as measured in the haul vehicle. Weighing of material shall be at the Contractor's expense. A weight receipt for each load of material shall be furnished by the Contractor.

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

PAYMENT WILL BE MADE UNDER:

02722(1) Aggregate Base Course TON

AGGREGATE SURFACING

North Rangely Improvements 11/21

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SECTION 02730

A. Section Includes: This work shall consist of placing and compacting contractor furnished crushed aggregate surfacing material on a prepared road and parking areas.

PART 2: MATERIALS

2.1 GENERAL REQUIREMENTS

A. Imported Crushed Aggregate: Aggregate shall consist of hard, durable articles or fragments of stone or gravel, crushed to the size and of the quality requirements for crushed aggregate materials normally used locally in the construction and maintenance of highways by Federal or State agencies and shall be according to AASHTO M 147. The aggregates comply with Colorado Department of Transportation (CDOT) Class 6.

B. General: A materials compliance submittal verifying the aggregate meets CDOT Class 6 shall be supplied prior to placing any material.

Aggregate shall be supplied from a commercially operated sand and gravel supplier and shall meet the Class 6 requirements from existing stockpiled material. Mixing of additional material(s) by the contractor to bring specified material into compliance shall not be allowed. Weighing of material shall be performed by an employee of the sand and gravel supply company. Weight tickets shall include the company supplier name, ticket number, project name, gross weight, tare weight, net weight, and time and date at time(s) of weighing for each truck load of material. Tare weight(s) of trucks shall be required on every load of aggregate supplied.

3.1 CONSTRUCTION REQUIREMENTS

A. Preparation: Prior to placing aggregate, the existing roadbed and parking areas shall be bladed and shaped to reasonably close conformity with the line, grade, and cross sections for subgrade as shown on the plans or established by the Contracting Officer. At intersections, the roadbeds of side roads shall be treated similarly, as governed by the grading performed, to provide for proper joining of the proposed and existing riding surfaces.

B. Placing: The material shall be placed on the prepared and approved surface in a single layer and spread and compacted to a 6 inch finished depth as shown on the drawings. Stockpiling of material for later placement shall not be allowed.

North Rangely Improvements 11/21

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1. Placing shall be from vehicles equipped to distribute the material in a uniform layer or windrow. The layer or windrow shall be such size that when spread and compacted, the layer shall have the required thickness.

2. When hauling is done over previously placed material, hauling equipment shall be routed as uniformly as possible over the entire width of previously constructed layers.

C. Compacting: Immediately following final spreading and smoothing, each layer shall be compacted full width. Compaction shall be accomplished by means of a smooth drum vibratory roller compactor, minimum 48-inch drum width, and minimum 10,000 centrifugal force. A minimum of three passes shall be made over the entire width of the area, and until the material visible stops compacting. Apply water as necessary to obtain maximum compaction.

D. Thickness Requirements: The thickness of the completed course shall not vary more than 1/2-inch.

4.1 METHODS OF MEASUREMENT

A. Method: The quantity to be paid for will be the number of tons of material placed within the specified work area, compacted, and accepted in the completed course. Weighing of material shall be at Contractor's expense. A weight receipt for each load of material shall be furnished by the Contractor. Aggregate used as fill material within the Loading Ramp is not included in the total volume of Imported Aggregate Surfacing Material.

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

PAYMENT WILL BE MADE UNDER:

02730(1) Aggregate Surfacing . . . . . . . . . . . TON

ROUGH CARPENTRY

North Rangely Improvements 01/22

06100 - 1

SECTION 06100

A. Section Includes: Furnishing and installing treated lumber to construct an OHV Loading Ramp as shown on the drawings.

2.1 LUMBER

A. Timbers: Shall be Douglas Fir-Larch, Hem Fir, Yellow Pine or as approved by the Contracting Officer. Timbers shall be #2 grade or better and at the length as shown on the drawings.

B. Treatment Type: Treated timbers shall be rated for “Ground Contact” and shall be pressure treated with Copper Azole (CA-C), Micronized Copper Azole (MCA-C) or similar approved treatment method as approved by the American Wood Protection Association (AWPA).

C. Preservative Treatment-Spot Applications: Commercial preservative wood treatment manufactured for wood and ground contact, similar in color to the timbers existing color.

2.2 INSTALLATION MATERIALS

A. Requirements: Furnish connection items required or shown on the drawings for joining framing members to each other.

B. Nails: 10” Galvanized Spikes.

C. Backfill: Crushed aggregate according to Section 02730.

3.1 GENERAL INSTALLATION

A. Construct Loading Ramps as shown on the drawings.

B. Apply a commercial preservative wood treatment on all cut ends of the timbers where the original treatment has been removed. Use a treatment that is manufactured for wood in contact with the ground.

Apply as instructed by the manufacturer.

C. Set to required levels and lines, with members plumb, true to line, cut, and fitted.

D. Backfill: As described in Section 02322, Excavation and Fill for Structures, Part 3: Execution.

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A. Units: The work described in this section will be measured and paid for by each ramp constructed.

described in this section. Payment will be made under:

06100(1) Loading Ramp . . . . . . . . . . . . . . . . . . . . Each

MISCELLANEOUS SPECIALITIES

North Rangely Improvements 03/2020

10990-1

SECTION 10990

A. Section Includes: Furnishing and installing steel parking delineators, concrete wheel stops, and boulders.

A. Steel Parking Delineators: Steel according to ASTM A 53, and as shown on the drawings.

B. Concrete Curb Stops: Shall be as shown on the drawings.

C. Boulders: Boulders shall have an average dimension of 36 inches, plus or minus 6 inches any direction. No dimension shall be lesser than 30”. Boulders shall be red or tan granite, basalt, or approved equal.

3.1 INSTALLATION

A. Steel Parking Delineators: Install the steel delineators at the locations as shown on the drawings and as staked in the field.

Distances between delineators is 12 feet. Elevations of delineators shall be installed on a uniform grade throughout the parking area.

Install new rebar anchor pins and weld to delineators as shown on the drawings.

B. Concrete Wheel Stops: Set at the locations as shown on the drawings.

Set level on the finished compacted aggregate surface. Concrete wheel stops in multiple car parking areas shall be set in a straight line along the entire length of the parking areas and on a uniform grade as shown on the drawing. Anchor stops as shown on the drawing.

C. Boulders: Set boulders according to the drawings and at the locations as shown on the drawings or marked in the field.

A. Units: The work described will be measured and paid for on a lump sum basis for 3 Steel Parking Delineator, 5 Concrete Wheel Stops, and 23 boulders, installed and accepted.

North Rangely Improvements 03/2020

10990-2

4.2 BASIS OF PAYMENT:

described in this section. Consideration for items of work not listed shall be included in the bid price of other items. Payment will be made under:

10990(1) Miscellaneous Specialties . . . . . . . . . . . LS