Attachment_2_-_Specifications.pdf

GENERAL INFORMATION AND REQUIREMENTS

L07 REC SITE IMPROVEMENTS 04/23

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SECTION 01009

PART 1: GENERAL

1.1 SUMMARY

A. Description of Work: Furnishing labor, equipment, supplies, and materials, in addition to government furnished materials, to improve a section of existing aggregate road, grade and place aggregate surfacing material on existing roads and parking areas and construct new aggregate parking areas.

Work also includes the installation of a Government Furnished precast concrete toilet building and vault, construction of a timber loading ramp, construction of ADA compliant concrete parking area, and 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)

ACI American Concrete Institute

P.O. Box 19150 Detroit, MI 48219

ACI 305R-91 Hot Weather Concreting ACI 306R-88 Cold Weather Concreting ACI 347R-94 Guide to Formwork for Concrete

ASTM American Society for Testing and Materials

100 Barr Harbor Dr.

West Conshohocken PA 19428-2959

ASTM A 615/A 615M REV B-95 Deformed and Plain Billet Steel Bars for Concrete Reinforcement

ASTM C 94-94 Ready-Mixed Concrete ASTM C 143 REV A-90 Test Methods for Slump of Hydraulic Cement

Concrete

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ASTM C 260-95 Air-Entraining Admixtures for Concrete ASTM C 309-95 Liquid Membrane-Forming Compounds for

Curing Concrete

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.

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 based on a Certificate of Conformance may be sampled and tested. Installation of materials based on 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.

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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.

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.

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

01009 - 4 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.

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.

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, location and elevations of precast concrete toilet and ADA concrete parking, locations of steel parking delineators, concrete parking stops, 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.

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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

GOVERNMENT-FURNISHED PROPERTY

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SECTION 01019

1.1 SUMMARY:

A. Section Includes: Precast concrete toilet and vault to be furnished by the Government and its location.

1.2 DELIVERY, STORAGE, AND HANDLING:

A. Location: The Precast concrete toilet building with vault and accessories are located at the Bureau of Land Management, White River Field Office 220 E. Market Street, Meeker, CO 81641.

B. Time: Property will be available Monday through Friday,8:00 A.M. – 4:30

P.M. except on holidays. Notify the Contracting Officers Representative a minimum of 72 hours of the estimated day and time(s) for removal.

C. Loading, Offloading and Transporting Property: The Contractor shall be responsible for providing the necessary material-handling equipment to load, offload, and transport the building, vault, and all accessories.

2.1 MATERIALS:

A. Materials to be Furnished by the Government: Single vault precast concrete toilet building as manufactured by CXT Inc. “Gunnison” Model, Left Hand door opening with precast concrete vault and accessories, including but not limited to vent pipe, toilet riser. See Attachment “CXT Building Installation Information” for additional information.

3.1 HANDLING OF MATERIALS:

A. Handling Instructions: Load, offload, and install building according to the building manufacturer’s instructions as shown in Attachment “CXT Building Installation Information”.

Note: Lifting hardware is not included in the Government Furnished Material. Contractor to supply all equipment required for loading, offloading, and installation of building. All lifting equipment shall be as recommended by the building manufacturer. Contact CXT Concrete Products (cxtinc.com), for additional information.

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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. The Contractor shall include consideration for this item in the bid price for other items of the Contract.

EXCAVATION AND FILL

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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 of Proposed Roadwork: Earthwork volume totals of Cut/Fill Material between STA 0+00 and STA 9+25 of as shown on the drawings are determined by using the Grading Volume Tools in Civil 3D, 2020. Volumes are measured between existing ground and finished subgrade surface, prior to placement of aggregate. Aggregate volumes along this section of road are not included. Shrink/swell of materials was not considered. Volumes of materials are shown on the drawings.

B. Volumes of Upper Parking Area: Earthwork volumes totals of Cut/Fill

Material for the Upper Parking Area as shown on the drawings are determined by using the “Grading Volume Tools” in Civil 3D, 2020. Volumes are calculated between existing ground and finished subgrade surface, prior to placement of aggregate. Aggregate volumes along this section of road are not included. Shrink/swell of materials was not considered. Volumes of materials are shown on the drawings.

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C. 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.

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. Dispose of material from clearing and grubbing onsite at a location as directed by the Contracting Officer.

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.

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 or approved equal. A minimum of three passes shall be made over the entire width of the area, and until the material visibly stops compacting. Add or remove water when necessary to obtain compaction.

4.1 METHODS OF MEASUREMENT

A. Method: The quantity to be paid for will be the number of cubic yards of cut material placed within the specified work area, compacted, and accepted.

Volumes of materials are as shown on the drawings. Excess material, if applicable, shall be stockpiled on site as directed by the Contracting Officer, costs associated with stockpiling of material shall not be paid separately but included in the total volume.

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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:

Pay Item Pay Unit

02315(1) Earthworks . . . . . . . . . . . . . . . . CY

EXCAVATION AND FILL FOR STRUCTURES

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SECTION 02322

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.

B. Culverts:

a. Bedding for culverts shall be Class 6 aggregate as described in Section

02730.

b. Backfill for culverts shall be fill material as per Section 02315.

C. Concrete Flatwork: Shall be Class 6 aggregate as described in Section 02730

3.1 INSTALLATION

A. Loading Ramp: Place aggregate fill material in horizontal layers across the full area of the interior of the loading ramp in lifts not exceeding thickness 8 inches in depth. Place under cross bracing when applicable and hand compact if needed to fill all voids.

B. Culverts:

a. Bedding: Shall have a minimum 6-inch thickness below the bottom of the pipe and extend up around the pipe for a depth of not less than 30 percent of its vertical outside diameter. Bedding shall be compacted as per

3.2 A prior to installing culvert.

b. Backfill: Backfill material shall be placed under the haunches and alongside the pipe in layers not exceeding 8-inches in depth and compact thoroughly prior to placing the next lift. The culvert shall remain in contact with the bedding material throughout the installation. Place backfill a minimum of 6” over the CMP, prior to placement of aggregate surfacing material. Compact as per 3.2 A.

C. Concrete Flatwork: Place crushed aggregate to a minimum depth of 6-inches throughout the full area where the concrete is to be placed. Compact with the use of a mechanical vibratory plate compactor with a minimum centrifugal force of 2250 pounds or approved equal. Compact a minimum of 3 passes over

02322 - 2 the entire area of the lift, and/or until the material visibly stops compacting. Add or remove water to achieve optimum compaction.

3.2 COMPACTION

A. Culverts: 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.

B. Loading Ramp: Compact each lift as per 3.2 A. Compact the final course as per Section 02315, 3.3 A.

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

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

A. Payment: No direct payment for the work described under this section will be made.

CULVERTS

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SECTION 02640

A. Section Includes: Installing Contractor-furnished culverts.

1.2 SUBMITTALS

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

1.3 QUALITY ASSURANCE

A. Failure Criteria: Not limited to the following:

1. Breaks in outer coating or spelter.

2. Deformed, broken, or chipped culvert pipe.

A. Corrugated Steel Pipe and Pipe Arches: ASTM A 760 circular pipe. Special sections, such as elbows and flared end sections, shall be of the same gauge as the conduit to which they are joined. Minimum width of coupling bands shall be 12 inches.

B. Connecting Bands/Hardware: As recommended by pipe manufacturer.

A. Excavation: Section 02322 - Excavation and Fill for Structures.

3.2 INSTALLATION

A. General: Install culverts at the locations and elevations as shown on the drawings. See drawings for additional installation instructions.

B. Laying Conduit: Pipe shall be in contact with the bedding for the required depth throughout its full length.

C. Joining Conduits: Use the manufacturer's recommended method of joining conduit sections, ensuring that the ends are fully entered and inner surfaces are flush and even. Pipe sections shall be straight horizontally and vertically after joining. No backfill shall be placed prior to approval of the Contracting Officer.

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D. Bedding/Backfill: Section 02322 - Excavation and Fill for Structures.

A. Units: Pipe will be measured and paid for on a by the linear foot of pipe installed and accepted, including placement and compaction of bedding and backfill.

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

02640(1) Corrugated Metal Pipe Linear Foot

AGGREGATE SURFACING

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SECTION 02730

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

PART 2: MATERIALS

2.1 GENERAL REQUIREMENTS

A. Imported 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 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 material that doesn’t meet specifications 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.

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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 or approved equal. A minimum of three passes shall be made over the entire width of the area, and until the material visibly 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 or as bedding material is not included in the total volume of aggregate surfacing material.

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

PAYMENT WILL BE MADE UNDER:

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

MINOR CONCRETE

L07 REC SITE IMPROVEMENTS 03/2020

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SECTION 03306

A. Section Includes: Furnishing and placing cast-in-place concrete, including formwork and reinforcement.

1.2 SUBMITTALS

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

1.3 QUALITY ASSURANCE

A. General: Forming, installing steel reinforcement as specified, placing, and finishing concrete within the sidewalk, cabana floors, ADA campsite and changing room floor.

B. 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

4. Honeycomb over 25% of the surface

5. Voids larger than 2 inches across

6. Exposed reinforcing steel

7. Misalignment of concrete

8. Substandard aggregate in the mix

9. Failure to apply cure/sealer within 24 hour after completion of pour.

A. General: Concrete shall be ready mix as per 2.1 B.

B. 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 maximum slump of 4 inches as determined by ASTM C 143.

C. Color-Flatwork Concrete: Shall be “Omaha Tan-5084” as manufactured by

Davis Colors, 3700 Olympic Blvd. Los Angeles, CA 90023, 800-356-4848, www.daviscolors.com, or approved equal.

D. Concrete Curing Compound: Clear all resin, dissipating water based curing compound, meeting ASTM C-309 requirements. Dayton Superior J11W or approved equal.

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E. Reinforcing Steel: #4 Rebar shall have a yield point of 60 ksi and shall be according to grade 60 of ASTM A 615. The size of the bars shall be as indicated on the drawings.

F. Fiber: 100% virgin polypropylene, fibrillated fibers specifically manufactured for use as concrete secondary reinforcement, installed at 1.5 pounds per cubic yard of concrete.

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

H. Air-Entraining Admixture: ASTM C260. The amount of air shall be 4 to 6 percent when maximum aggregate size is 3/4-inch, and 4.5 to 7.5 percent when maximum aggregate size is 3/8-inch. A variations of plus or minus 1 percent is allowable.

I. Expansion Joint Material: Preformed filler strips shall be according to

ASTM D 994 and shall be the full width and depth of the joint. Unless otherwise indicated, the material shall be 1/2-inch thick.

A. Subbase Preparation: Subbase and earth walls to be in contact with concrete shall be undisturbed or compacted according to Section 02322 - Excavation and Fill for Structures.

B. Form Construction: ACI 347R. Construct forms to the sizes, shapes, lines, and dimensions shown on the drawings. The Contractor shall provide construction aids and imbedded items such as shown on the drawings.

Fabricate forms for easy removal without hammering or prying against the concrete surfaces. Form oil may be applied to facilitate removal of forms.

Forms and subbase shall be wet before placement of concrete.

C. Form Inspection: Notify the Contracting Officer 48 hours 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 forms before concrete placement.

D. Reinforcing Steel: Install rebar at 16” O.C. each direction with 3” edge clearance all sides. Center rebar vertically in concrete by placing on mortar blocks(dobie) or plastic or metal chairs specifically designed for rebar installation. Workers shall not walk on rebar during placement of the concrete. Reinforcement shall be inspected by the Contracting Officer before concrete is placed.

E. Expansion Joints: Install expansion joints between sidewalks and toilet building. Install so expansion joint material is even with bottom of concrete and approximately 1/4” from top of concrete.

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3.2 CONCRETE PLACEMENT

A. Placement and Consolidation: Concrete shall be deposited as nearly as practical to its final position to avoid flow causing segregation of the aggregate. Concrete shall not be dropped more than 5 feet vertically without the use of a tremie or similar device.

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.

3.3 CONCRETE FINISHING

A. Concrete Surface Finishes: Concrete slabs shall be given broom finish.

Brooms shall have a minimum width of 18 inches and shall be applied perpendicular to the centerline. Edges shall be formed with a metal tool to leave a smooth border on the concrete.

B. Form Removal: Formwork not supporting concrete may be removed after curing at not less than 50 degrees F for 24 hours after placing the concrete, and when curing and protection procedures are followed as specified. The concrete should be sufficiently hard so as not to be damaged by form removal.

C. Control Joints: Shall be saw cut, with a wheel mounted saw to a depth of

1/4 of the slab thickness. Saw-cutting control joints shall be completed within 24 hours after finishing concrete, but not until the concrete has cured enough to prevent aggregates from being dislodged by the saw. Saw cut at the locations on the concrete as shown on the drawings and/or as directed by the Contracting Officer.

3.4 CONCRETE CURING

A. Concrete Curing Compound: Spray on the concrete curing compound as per manufacturing instructions.

3.5 PROTECTION

A. Requirements: During the curing period, protect concrete from load stresses, shock loads, or vibration. Do not allow vehicles or equipment onto concrete for a minimum of 7 days after completion of the pour.

A. Units: The work described in this section will be measured and paid for on a lump sum basis for the concrete parking and walk. No extra quantity will be added for concrete placed beyond the lines and grades shown.

Reinforcing steel and bedding material will not be paid for separately but is a part of the payment for concrete. See drawings for dimensions and estimated surface area of concrete to be placed.

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

03306(1) Concrete Flatwork, 6” Thickness . . . . . . . . LS

PRECAST CONCRETE TOILET STRUCTURE

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SECTION 03415

PRECAST CONCRETE TOILET STRUCTURE

1.1 SUMMARY:

A. Section Includes: Install single vault Government-Furnished Precast Toilet building, including vaults and all accessories.

2.1 MATERIALS:

A. General: See Section 01019 Government-Furnished Property and attachment “CXT Building Installation Information” for additional information.

3.1 INSTALLATION:

A. Installation: Excavate, install, and backfill the precast building according to the manufacturer’s installation instruction. See attachment “CXT Building Installation Information” for additional information.

4.1 METHOD OF MEASUREMENT:

A. Units: The work described under this section will be measured and paid for by each Government Furnished toilet building installed and accepted.

Loading, transportation of building, offloading of building, and installation of all accessories as recommended by the manufacturer for a complete installation is included in the bid price.

4.2 BASIS OF PAYMENT:

described under this section. Payment will be made under:

Pay Item Pay Unit

03415(1) Precast Concrete Toilet-Single Vault . . . . . . . . . . Each

ROUGH CARPENTRY

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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.

L07 REC SITE IMPROVEMENTS 01/22

06100 - 2

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

described in this section. Payment will be made under:

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

MISCELLANEOUS SPECIALITIES

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 that 30 inches. Boulders shall be red, gray, or tan granite.

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 across the row installed. 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 by each item installed and accepted, 7 Steel Parking Delineator, 9 Concrete Wheel Stops, and 19 boulders.

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) Steel Parking Delineators . . . . . . . . . . . EA

10990(2) Concrete Wheel Stops . . . . . . . . . . . . . EA

10990(3) Boulders . . . . . . . . . . . . . . . . . . . EA

606 N. Pines Road, Suite 202 Spokane Valley, WA 99206 800.696.5766 www.cxtinc.com

INSTALLATION SUGGESTIONS FOR

GUNNISON VAULT RESTROOM

1.0 MEASUREMENTS

A. Vault Check drawing for actual dimensions and weight.

Height: 4’ 4” Width: 6’ 6” Length: 14’ 7½” Weight: 17,400 lb.

B. Building Check drawing for actual dimensions and weight.

With Thru Screen Weight: 25,900 24,340 Width: 8’ 6” 8’ 6” Length: 14’ 7½” 14’ 7½” Height: 9’ 5” 9’ 5”

2.0 INSTALLATION

A. Placement

The floor of the building and the top of the vaults should be the high spot of the site chosen.

Finished floor elevation should be 4- 6” above natural grade measured at the front entrance of the floor. Both the floor and the top of the vault should be above the surrounding ground level with the pathway sloped up to meet the entryway. Ideally, the back of the building should be slightly higher to allow water to freely drain out of the toilet rooms.

B. Excavation, Backfill and Compaction

The hole dug to accommodate the vaults must be large enough to be workable and to allow the floor to the building to fit on the vaults when placed, but small enough to avoid excessive backfill after placement (use your own judgement). Compact the natural ground at the bottom of the vault excavation with a minimum of three passes with a whacker-type mechanical compactor or equivalent approved by the customer. Install aggregate bedding material for building support. Compact aggregate course with two passes with a whacker-type mechanical tamper or equivalent approved by the customer.

Install leveling course of sand so there will be no high spots in the middle of the vault bottom.

Set vault in place. Ideally, the containment area end of the vault should be slightly higher; ¼” per foot of run to allow the building to sit higher. Ensure vault is level, side to side. Backfill around the structure. Use excavated material for backfill, rocks larger than 6” in maximum dimension shall not be placed within 6” of the exterior vault walls. Fill, adjacent to the building entry will have excavated material placed in 8” loose lifts and compacted with a minimum of two passes with a whacker-type mechanical compactor or equivalent approved by customer.

After the vault is placed in the hole and backfilled, place the supplied butyl tape around the entire top surface of the vault. Make sure that the area is free of debris.

Gunnison Vault Installation Rev. 4-05/12/2022

C. Other Important Points

• Southern exposure for the vent stack is ideal, as this allows for heating of the vent stack.

Heating of the vent stack aids in the venting of the building. Whenever possible, the placement of the building should be chosen with this in mind.

• Aggregate bedding material provides a solid base for the vault.

• Sand is preferable for use in leveling the bottom of the hole excavated for the vault, as it is easier to level.

• Use of softeners when lifting the building is critical to prevent spalling to the roof of the building if nylon leads are not available.

• When lining up the vault and the floor of the building, lining up the rear corners of the vault (the containment portion) and floor (by the clean-out and vent stack) is the easiest and best way to set the building. The screen section and sidewalks will overhang the vault by several inches.

• Important: Check the seal of the containment portion of the vault by getting into the vault through the clean-out cover in the back of the building after building placement. There should be no light leaking through, with the exception of the riser and vent stack holes.

• Use the caulk provided to seal around the riser and vent stack where it joins the floor and roof panels. When sealing the vent stack, be sure to put a bead of caulk in the floor vent hole, insert vent stack, then caulk around vent stack.

• Prior to use, it is recommended you place water in a sufficient amount as to cover the entire bottom of the vault containment area to assist in keeping waste material fluid, making it easier to pump out when needed.

3.0 RECOMMENDED LIFTING EQUIPMENT

Contact CXT®.

FOR

REFERENCE

ONLY

3.0 RECOMMENDED LIFTING EQUIPMENT

CXT-GunnisonDrawingsLH