A06-SOW_and_Misc.pdf

GENERAL INFORMATION AND REQUIREMENTS

Colorado River Sites-ADA Improvements 02/24

01009 - 1

SECTION 01009

PART 1: GENERAL

1.1 SUMMARY

A. Description of Work: Furnishing labor, equipment, supplies, and materials, to improve and resurface approximately aggregate trails, install a steel frame cabana, install precast concrete tables and bench, place riprap and angular aggregate around an existing concrete boat ramp, and install cedar split rail fencing.

B. Location: Work under this Contract is in Garfield and Eagle Counties, 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)

ACI American Concrete Institute

P.O. Box 19150 Detroit, MI 48219

ACI 305R-91 Hot Weather Concreting ACI 306R-88 Cold Weather Concreting

ASTM American Society for Testing and Materials 100 Barr Harbor Dr.

West Conshohocken PA 19428-2959

ASTM C 143 Methods for Slump of Hydraulic Cement Concrete

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

MISCELLANEOUS SPECIALITIES

Colorado River Sites-ADA Improvements 3/2022

10990-1

SECTION 10990

A. Section Includes: Furnishing labor and materials for the installation of a steel frame cabana, precast concrete picnic tables and bench, installing riprap and angular aggregate around an existing concrete boat ramp, and removing existing damaged split rail cedar fencing and installing new split rail cedar fencing along the same location.

B. General-Alternate Materials: Any/all items requested by the Contractor to be supplied in place of the specified item must have the same salient characteristics, design criteria, and dimensions of the applicable specified item.

PART 2: PRODUCTS

2.1 MATERIALS

A. Cabana: Cabana shall be the “Mesa” model, 14’ x 14’, as manufactured Classic Recreation Systems, 11875 Berry Dr., Dewey, AZ. 86327. Phone number is 800-697-2195, or online at www.shadesun.com, or approved equal. Frame coating shall be TGIC Poly Powder, color “RAL 1020- 49/22500”. Roofing shall be 24-gauge, pre-finished color shall be “Buckskin”. All structural items, including but not limited to beams and roofing, shall be as recommended by the manufacturer. Height of cabanas shall be as shown on the drawing. Substitutions shall meet or exceed the salient characteristics of the specified cabanas. See drawing “Cabana Details” for design requirements.

B. Contractor Furnished Precast Concrete Tables/Benches: Tables shall be the ADA compliant Model 100S, bench shall be ADA Model 408, as manufactured by Outdoor Creations, Inc. P.O. Box 50 Round Mountain, CA 96084, (530) 337-6774. Tables and benches shall be one continuous pour. Table shall have the “BLM” emblem formed into the pour. Color of tables and benches shall be “Sand Buff”.

C. Rip-Rap: Angular in shape, Basalt or Granite, approximately 12”-24” in size. Rounded river rock shall not be accepted.

D. Angular Aggregate: Angular in shape, Basalt or Granite, approximately 3”-5” in size. Rounded river rocks shall not be accepted.

E. Split Rail Cedar Fence: All wood fence materials shall be untreated cedar. Posts and rails shall be of the same color and material. Holes within posts shall be sized to best fit the rails.

a. End/Line Posts: Approximately 5”x5”x6’ Red Cedar post with 2

10990-2 factory cut rails holes per post. End posts shall not have holes cut completely through posts.

b. Rails: Approximately 2”x4”x8’ Red Cedar rails with factory notched ends for installation into end/line posts.

3.1 INSTALLATION

A. Cabana: Erect the cabanas at the location shown on the drawings and as instructed by the manufacturer. Finished floor elevations for Cabana shall be approximately 6” higher than the adjacent ground elevations, and as determined by the Contracting officer.

B. Precast Concrete Tables/Bench: Install as instructed by the manufacturer. Set tables and bench using equipment recommended by the manufacturer and at the locations as shown on the drawings. Bench and tables shall be set level on prepared and approved surfaces.

C. Rip-Rap: Place riprap aggregate around the lower end and sides of the boat ramp at the approximate locations as shown in the drawings and as directed by the Contracting Officer. Finished grade surfaces of riprap placed along the sides and lower end of the ramp shall be installed to approximately match the elevations and slopes of the ramp. Riprap shall be placed for the purpose of containing the smaller angular aggregate.

Larger riprap shall be placed on the outside of the areas shown with the smaller riprap placed closer to the ramp.

D. Angular Aggregate: Place aggregate after placement and approval of the of riprap. Place angular aggregate between the existing ramp and riprap and within the voids between existing rock and newly placed riprap. Install aggregate to match the existing slopes of the adjacent ramp.

E. Split Rail Cedar Fence:

a. Removal of Existing Fence: Prior to installation of new fence, remove approximately 200 feet of damaged fence as shown on the drawings. The existing fence is 2 rail, split rail cedar fencing. Remove posts and rails, and miscellaneous items if applicable, and dispose of materials. Backfill all holes from posts removal.

b. General: Construct new fence along the approximate line and locations of the fence removed. Install End posts at ends of fence.

c. End/Line Posts: Set end/line posts in excavated holes at the approximate spacing as shown on the drawings. Posts shall be set plumb, and to the spacing as needed so fence rails can move freely within holes of the posts but not fall out from holes if moved in any direction. Backfill excavations gradually and uniformly with soil in lifts of 12” maximum and hand tamp each lift. Continue with backfill and compaction until soils is at the

10990-3 ground surface. Continue compaction as needed until post is securely help in place.

d. Rails: Install rails by inserting the notched ends of rails into factory cut holes within the posts. Rails shall move freely within holes/posts but not fall out of posts if moved in any direction. Securing rails with screws shall not be allowed. If rails fall from posts, remove posts and re-install posts for acceptable rail installations.

PART 4: MEASUREMENT AND PAYMENT

4.1 METHOD OF MEASUREMENT

A. Units: The work described will be measured and paid for by each cabana, table, and bench, installed and accepted, and on a Lump Sum basis for the riprap and angular aggregate placed and accepted. The Split Rail fence shall be measured by the Linear Foot of fence installed and accepted. Removal and disposal of the existing fence shall not be measured for payment, costs associated for this work shall be included within other bid items.

4.2 BASIS OF PAYMENT:

A. Payment: Prices and payment will be full compensation for the work 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:

Pay Item Pay Unit

10990(1) Cabana . . . . . . . . . . . . . . . . . . . . EA

10990(2) Precast Concrete Table . . . . . . . . . . . . EA

10990(3) Precast Concrete Bench . . . . . . . . . . . . EA

10990(4) Riprap/Angular Aggregate . . . . . . . . . . . LS

10990(5) Split Rail Cedar Fence . . . . . . . . . . . . LF

END OF SECTION

SITE GRADING

02310 - 1

SECTION 02310

PART 1 GENERAL

A. Section Includes: Preparation and grading of existing aggregate and natural surfacing trails for placement of aggregate base and aggregate surfacing material.

1.2 DEFINITIONS

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

B. Common Excavation: Removal of materials which can be excavated using a skid steer loader, 75 HP a minimum.

1.3 PROJECT/SITE CONDITIONS

A. Environmental Conditions: Do not attempt to grade frozen or saturated material. Apply water dry material to prevent dust if applicable.

A. See Specification Section 02730.

PART 3: EXECUTION

3.1 EXAMINATION

A. South Canyon Existing Trail: Finished subgrade for improved trail is approximately the existing grades of the existing trail, except from STA 2+25 to the end of the trail, see Drawings for additional information.

Remove vegetation as per Specification Section 02231, and grade trail to create a smooth, uniform grade as shown on the drawings. Boulders near STA 0+00 and STA 2+75 limit width of trail and may be removed during construction. Replace boulders to the same locations and elevations once trail work is completed.

B. Dotsero Existing Trial: The existing trail is unsurfaced native soils.

Construct new trail along the existing trail locations as shown on the drawings and at the approximate grades of the existing trail. Grade existing trail subgrade according to the “Typical Trail Section-Dotsero” as shown on drawing “Dotsero Rec Site-Details”.

02310 - 2

3.2 PREPARATION

A. Clearing: Section 02231 - Clearing and Grubbing.

B. Existing Ditch-South Canyon: Clear and shape the existing ditch from beginning of trail to past the “Landing Area” as shown on the drawings.

Grade and shape ditch to drain.

C. Excavation Material: Materials accumulated from excavation for base course material shall be considered “Common Excavation” as described above.

Stockpile material, if applicable, near the excavation as determined by the Contracting Officer for future placement.

3.3 INSTALLATION

A. Grades: When not otherwise indicated shall be level, or uniform slopes between points where elevations are given, or between such points and existing finished grades. Abrupt change in slopes shall be rounded.

B. Frozen Material: Fill shall not be placed when either the material or the surface on which it is to be placed is frozen.

C. Compaction: Compact as per Specification Section 02730.

D. Excavation Material: After completion of the trail improvements, place excess material from base course excavation against the base course material along the downhill side of the trail. Place and spread uniformly against trail as directed by the Contracting Officer.

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.

AGGREGATE SURFACING

02730 - 1

SECTION 02730

A. Section Includes: This work shall consist of furnishing, placing, and compacting base aggregate and crushed aggregate courses on a prepared ADA compliant pedestrian trails and aggregate pads for tables.

PART 2: MATERIALS

2.1 GENERAL REQUIREMENTS

A. Surfacing Course: 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.

a. 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.

B. Base Course: Imported Pit Run Material shall consist of hard, durable particles or fragments of natural bank pit run gravel, 18” maximum gravel size. Gravel sized between 12” and 18” shall be less than 20% of the material by volume. Material shall be visually free from organic matter and lumps or balls of clay. Materials that break up when alternately frozen and thawed or wetted and dried shall not be used.

C. Riprap and Angular Aggregate: See Specification Section 10990, Miscellaneous Specialties.

3.1 CONSTRUCTION REQUIREMENTS

A. Preparation of Trail: As per Specification Section 02310, Site Grading and as shown on the drawings.

02730 - 2

B. Placing:

a. Base Course-South Canyon: The base course material shall be placed full width of trail as shown on the drawings between Stations 2+25 and the end of the trail at the existing concrete boat ramp. Material shall be placed on the prepared trail bed in two lifts of approximately 8”-12” lifts when possible, and in lift sizes as determined by the size of the aggregate being placed when applicable. When more than one layer is possible, each layer shall be shaped and compacted before the succeeding layer is placed.

b. Aggregate Surfacing: The material shall be placed on the approved subgrade in a single layer and spread and compacted to a 4-inch finished depth, plus or minus 0.5 inches, as shown on the drawings.

C. Compacting:

a. Base Course-South Canyon: Immediately following final placement, each layer shall be compacted full width. Compaction shall be accomplished by means of a pad-foot vibratory roller, minimum operational weight 3000 lbs., minimum 10,000 lbs. centrifugal force or approved equal. A minimum of three passes shall be made over the entire width of the area for each lift, and additional passes if needed until the material visible stops compacting. Apply water as necessary to obtain maximum compaction.

b. Aggregate Surfacing: Immediately following final spreading and smoothing, compact full width of trail. Compaction shall be accomplished by means of a smooth drum vibratory roller compactor, 3000 lbs., minimum 10,000 lbs. centrifugal force or approved equal.

A minimum of three passes shall be made over the entire width of the area, and additional passes if needed until the material visible stops compacting. Apply water as necessary to obtain maximum compaction.

4.1 METHODS OF MEASUREMENT

A. Method: The quantity to be paid for will be the number of tons of material placed, compacted, and accepted in the completed course. Weighing of material shall be at Contractor's expense. Weighing of material shall be at Contractor's expense. A weight receipt for each load of material shall be furnished by the Contractor.

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

02730(1) Aggregate Base Course Ton 02730(2) Aggregate Surfacing Ton

CLEARING AND GRUBBING

Colorado River Sites-ADA Improvements 01/24

02231 - 1

SECTION 02231

A. Section Includes: Clearing of vegetation, and grubbing of stumps, roots, and debris; disposal of unutilized materials; and other incidental work related to preparing the proposed trail for resurfacing.

1.2 DEFINITIONS

A. Clearing: Clearing shall consist of the removal and/or trimming and cutting of obstructions such as trees and brush, and the disposal of the vegetation collected from clearing.

B. Grubbing: Grubbing shall consist of the removal and disposal of below-surface stumps, roots larger than 3-inches in diameter, and matted roots from the designated grubbing areas.

1.3 PROJECT/SITE CONDITIONS

A. Work Limits: The area to be cleared and grubbed will be limited to an 10’ maximum width, 5 feet each side of the centerline of the proposed trail.

B. Burning of Slash: Shall not be permitted.

C. Landscape Preservation: Protect vegetation outside the work limits from injury. Existing trees and shrubs outside of the work limits shall not be disturbed or damaged.

2.1 EQUIPMENT

A. Spark Arresters: Shall meet the requirements of the most current U.S.

Forest Service Spark Arrester Guide.

3.1 CLEARING

A. Requirements: Clear vegetation in areas to be graded and within 2 feet from the edges of the trail; cut off flush with or below the original ground surface. Remove overhanging limbs and branches within the clearing area if applicable.

Colorado River Sites-ADA Improvements 01/24

02231 - 2

3.2 GRUBBING

A. Requirements: Remove roots or other material within the proposed trail to a depth of not less than 12 inches below the existing ground surface.

Depressions made by grubbing shall be filled with suitable material and compacted to make the surface conform with the original adjacent surface of the ground.

3.3 DISPOSAL

A. Requirements: Material from the clearing and grubbing shall be removed from the project site and disposed of legally. Burning shall not be permitted.

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

MINOR CONCRETE

Colorado River Sites-ADA Improvements 4/21

03306 - 1

SECTION 03306

A. Section Includes: Furnishing and placing cast-in-place concrete in footings used for the installation of a cabana.

1.2 SUBMITTALS

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

1.3 QUALITY ASSURANCE

A. Causes for Rejection: Concrete may be rejected for, but not limited to, the following reasons:

1. Freezing within the first 3 days of placement

2. Excessive or inadequate slump

3. Segregation of aggregate or over-vibration resulting in excessive water in the surface of the concrete

A. Water: Potable water shall be used for mixing concrete.

B. Sack Concrete Mix: Shall be designed for a 28-day compressive strength of 4000 psi, and a slump of 4 inches as determined by ASTM C 143.

C. Ready Mix Concrete: Ready-mixed concrete shall be according to

ASTM C 94 and be designed for a 28-day compressive strength of 4000 psi, and a slump of 4 inches as determined by ASTM C 143.

D. Mixing Materials: Concrete shall be machine mixed. Mixers shall be batched according to their capacity and not overloaded. Mixing of ingredients shall continue for at least 3 minutes and until a uniform color is obtained. The concrete shall be placed as soon as possible after mixing to prevent cold joints.

3.1 PREPARATION

A. Subbase Preparation: Subbase and earth walls to be in contact with concrete shall be undisturbed or compacted to form a solid base for footings, as approved by the Contracting Officer.

Colorado River Sites-ADA Improvements 4/21

03306 - 2

B. Footings Details:

a. Cabana: Excavate footings as per manufacturer’s instructions and as shown on the drawings.

C. Excavations Inspection: Notify the Contracting Officer 24 hr. in advance of concrete placement to allow for inspection of forming and placement of items to be imbedded in the concrete. Excess water shall be removed from the excavations before concrete placement, if applicable.

3.2 CONCRETE PLACEMENT

A. Placement and Consolidation: Each lift shall be adequately vibrated, rodded, or spaded into place to fill voids. Concrete shall be deposited as nearly as practical to its final position to avoid flow causing segregation of the aggregate. Each footing shall be of a continuous pour until for the entire depth of footings, cold joints shall not be allowed.

B. Concrete Placement Under Adverse Conditions: During hot weather, refer to ACI 305R. During cold weather, refer to ACI 306R. Materials required for protection shall be on the jobsite before concrete work is started. Do not place concrete on a frozen subgrade or against surfaces having deposits of frost, snow, or ice.

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

MOBILIZATION

Colorado River Sites-ADA Improvements 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:

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

01009 - 2 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 aggregate material compliance and installation instructions for the Cabana.

B. Requirements: Refer to specifications for submittals required. Allow at least 5 working days for review. Submittals shall be sent 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 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.

1.6 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.

01009 - 3

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

1.7 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.

1.8 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.

(There are no applicable requirements.)

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.

B. Progress Meetings:

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.

01009 - 4

3.2 PREPARATION

A. Work Layout: Proposed trails shall be located at the approximate locations of the of the existing trails. The Cabana location shall be at the approximate location as shown on the drawings and as determined onsite with the Contractor and Contracting Officers Representative.

B. Work Limits and Control Points: Shall be limited to within 5 feet each side of the centerline of the proposed trail and edge of the cabana.

3.3 DISPOSAL OF DEBRIS

A. Requirements: Items or debris not designated as salvage for the Government shall become the property of the Contractor. Disposal of materials in a legal manner and payment of fees required is the Contractor's responsibility.

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