DRAFT SOW - Nespelem WA.docx

SECTION C

DESCRIPTION/SPECIFICATIONS/WORK STATEMENT

1. OVERVIEW

A. SITE LOCATIONS

Nespelem Indian Health Clinic – 19 Lakes St, Nespelem WA

B. PROBLEM STATEMENTS

The Colville Service Unit, located at the Nespelem Indian Health clinic, requires maintenance on the parking areas and is missing a portion of the sidewalk along San Poil Avenue.

C. OBJECTIVE

This project will provide necessary maintenance of the parking lot surfaces by applying a fresh top coat to help extend the useful life of the asphalt, as well as filling and repairing the cracks. Additionally, the project will re-stripe the parking area, add ADA markings, and install a sidewalk along San Poil Avenue.

D. WORK SUMMARY

1. Clean and fill the crack in the parking area. Apply an elastomeric crack filler suitable for asphalt surfaces

1. Apply a seal coat to the parking regions

1. Stripe with high-visibility, traffic-grade acrylic or latex paint. Add ABA-compliant markings

1. Provide submittal documenting the final inspection report, including before and after photographs, as well as site survey, including measurements and conditions

1. Dispose of all refuse and debris at a legally established landfill.

1. Follow accepted standards for safe practice.

1. Perform inspections and tests to ensure quality and safety standards

1. Construct walkways per NFPA 101

II. TECHNICAL REQUIREMENTS

A. CODES, REFERENCES, AND STANDARDS

Work under this contract shall be performed in compliance with the codes, references, and standards listed below. The current version of all codes and standards shall be used.

1. ABA standards for accessible design

2. International Building Codes (IBC)

3. ASTM D3320 standard specification for Emulsified Asphalt

4. OSHA/ TOSHA

5. NFPA 101

6. NFPA 70

7. Washington State Department of Transportation “Standard Specifications for Road, Bridge, and Municipal Construction” Designation M 41-10, 2024 (WSDOT)

B. SUBMITTALS

The Contractor shall provide submittals on the items listed below. COR approval is required before proceeding with the portion of the work to which the submittal applies.

1. Pre-Construction

a. Project Schedule

b. Safety and Accident Prevention Plan/ Hazardous Waste Management and Disposal

c. Shop drawings and specifications

d. Traffic control plan

2. Materials & Equipment

a. Asphalt emulsion-based seal coat

b. Asphalt crack sealer

c. Thermoplastic markings

d. Concrete mixture

e. Anti-stripping Additive

3. Post Construction

a. Operation & Maintenance Information

b. Completion report

c. Red-lined drawings/ Single-line drawings

d. test reports (compression testing/air content testing)

C. MATERIAL & EQUIPMENT SPECIFICATIONS

1. Seal coat

a. Commercial grade asphalt emulsion-based seal coat

b. ASTM D3320 Standard specification for emulsified asphalt

2. Crack sealing compound

a. Prepackaged, Hot rubberized asphalt crack sealer

b. ASTM D6690 Standard specification for Joint and Crack sealant

c. Application at least 40 degrees Fahrenheit

3. Stripping paint

a. High visibility traffic grade acrylic or latex paint

b. Waterborne acrylic alkyd traffic marking paint in colors indicated in the Washington State Department of Transportation “Standard Specifications for Road, Bridge, and Municipal Construction” Designation M 41-10, 2024 (WSDOT)

c. Paint to match the existing layout, including handicapped

4. ABA Marking

a. Thermoplastic markings for ABA symbols

b. ABA standards for accessible design, dimensions, and color contrast

5. Concrete

a. Ready-mixed concrete compliant with ASTM C94/C94M-22

b. The concrete mix should be in accordance with the Washington State Department of Transportation's “Standard Specifications for Road, Bridge, and Municipal Construction” 6-02.3(4), 6-02.3(4)A, and 6-02.3(4)B.

6. Sub-base material

a. Gravel: crushed stone or gravel,3/4-inch size compacted to a 4-inch depth

0. Meet Washington State Department of Transportation “Standard Specifications for Road, Bridge, and Municipal Construction” Designation M 41-10, 2024 Chapter 9-03.10

7. Finishing material

a. Curing compound: Liquid membrane-forming curing compound, complying with ASTM C309

8. Crack filler

a. Elastomeric crack filler suitable for asphalt surfaces according to ASTM D5329

9. Hot-Mix asphalt

a. Comply with the Washington State Department of Transportation “Standard Specifications for Road, Bridge, and Municipal Construction 2024” Designation M 41-10, Chapter 5-04, Commercial Evaluation

b. Maximum aggregate size: ½-inch

c. Performance Graded Asphalt Binder 76-28

d. Liquid Anti-strip additive as recommended by the manufacturer

B. QUALITY ASSURANCE

As written, the Contractor must only abide by this rule for the parking lot and nowhere else. The Contractor shall perform all work in a manner that meets all accepted standards for safe practices during operations and maintains safe conditions of the premises at all times, including the secure storage of equipment, machines, and materials. This includes compliance with Tribal and Federal laws, as well as OSHA and/or TOSHA regulations, at all times to protect all persons, including the Contractor’s employees and the Owner, against injury or damage to property. The Contractor must hold all relevant state and local licenses for performing asphalt maintenance and striping work, such as those issued by the National Pavement Contractors Association (NPCA) and the National Asphalt Pavement Association (NAPA).

1. All work must be performed by a valid general contractor’s license in the state of Washington

2. OSHA construction safety certification for the site supervisor

3. Offer a 2-year warranty period for the construction

4. Asphalt cement certification.

5. Have an interim life safety measures plan assessment.

C. WORK EXECUTION REQUIREMENTS

Parking lot

a) Clean and seal all cracks and joints greater than or equal to 1/8 inch in the asphalt surfaces by pouring hot-mix asphalt to provide a waterproof bond, as per the crack sealant manufacturer’s recommendations and the Washington State Department of Transportation's “Standard Specifications for Road, Bridge, and Municipal Construction,” Section 5-03.

b) The crack should be slightly overfilled and leveled with a 3-inch sealing disk or v-shaped squeegee.

c) Crack sealing should only occur when environmental conditions are favorable and per the manufacturer’s recommendations for the crack sealant. Final crack cleaning will happen on the same day as the sealing operation.

d) The existing asphalt surface shall be cleaned in accordance with the Washington State Department of Transportation's “Standard Specifications for Road, Bridge, and Municipal Construction,” Chapter 5-03.3(1), and all debris resulting from the cleaning must be removed from the site by the Contractor. The contractor will furnish all necessary equipment, supervision, labor, materials, tools, traffic control, and incidentals for the job.

Strip Painting/ABA marking

· The parking lot and curbs shall be painted per the manufacturer’s recommendations.

· The Contractor shall verify measurements and evaluate actual site conditions.

· Parking stalls shall be painted white.

· All paint shall have a minimum film thickness of 15 mils, and lines shall be 4 inches wide.

· The international symbol of accessibility shall comply with the ABA Standards for Accessible Design.

· The pavement markings shall include the delineation of parking stalls, crosswalks, access routes, no parking zones, and handicapped parking designations.

· Paint shall be applied in dry weather and only when the pavement and atmospheric temperatures are above 45°F and are anticipated to remain above 45°F for eight hours after completion.

· Application will not be permitted when precipitation is anticipated or when temperature and humidity conditions are such that the paint cannot dry thoroughly.

· The paint will be applied with mechanical equipment to produce uniform, straight edges.

Crack Sealant (Cape seal)

· Follow the manufacturer’s recommendations for crack cleaning.

· Use prepackaged, hot-pour rubberized asphalt crack sealer formulated explicitly for slow-moving vehicle traffic and foot traffic, such as in parking lots.

· Should be compatible with the climatic temperature, falling within the manufacturer’s minimum application temperature and maximum heating temperature.

· The Contractor is required to follow the Recommended Performance Guideline for Cape Seals checklist developed by the Federal Highway Administration (https://www.fhwa.dot.gov/pavement/preservation/2019checklists/hif19043.pdf)

Concrete pavement

· Prepare the site in compliance with the US Department of Transportation’s Federal Highway Administration (FHWA 2021).

· Excavate the ground to a depth of at least 6 inches to accommodate the concrete and base layers, as per the Washington State Department of Transportation guidelines (WSDOT, 2022).

· The subbase should be composed of crushed stone or gravel, compacted thoroughly to provide a stable surface at least 95% of maximum dry density.

· Forms should be wood or metal, securely anchored, and aligned correctly to maintain intended dimensions and slope.

· Include expansion joints to allow for concrete expansion and contraction due to temperature fluctuations, as recommended by the American Concrete Institute.

· Concrete mix should adhere to the recommended ASTM standards.

· Immediately level, smooth, and texture the surface after the pour to provide a non-slip surface, as per the ABA guideline.

· Curing the concrete should be done for a minimum of seven days, and the concrete should be kept moist to prevent rapid drying and cracking.

Concrete Testing

The contractor should determine the conformance of the fresh concrete sample based on temperature, slump, air content, and compressive strength at 28 days. The contractor or manufacturer will perform the required tests according to the Washington State Department of Transportation's “Standard Specifications for Road, Bridge, and Municipal Construction” Materials Manual M 46-01. These are the recommended test methods to meet the specifications

· AASHTO T 22 Compressive Strength of Cylindrical Concrete Specimens

· FOP for AASHTO R 100 Making and Curing Concrete Test Specimens in the Field

· FOP for AASHTO T 119 Slump of Hydraulic Cement Concrete

· FOP for WAQTC TM 2 Sampling Freshly Mixed Concrete For the acceptable limits, refer to Washington State Department of Transportation “Standard Specifications for Road, Bridge, and Municipal Construction” Chapter 6-02.3(2)B

1. Kickoff Meeting:

a. A kickoff meeting with the COR is required to evaluate and understand the building layout and project needs.

2. Closeout Procedures:

a. Provide Operation and Maintenance (O&M) Manual

b. Submit copies of Operation and Maintenance Manuals three days in advance of applicable demonstrations and trainings.

c. Provide warranty information for all materials within the O&M documentation. If the manufacturer requires registration for warranty tracking or offers upgrades as a result of registration, include all registration information and instructions on how to submit it.

d. Submit complete project package

3. Closeout Meeting

a. The Contractor shall coordinate a closeout meeting with the Contracting Officer Representative (COR) and the Facility Manager.

b. Contractor shall record and provide meeting minutes.

I. ATTACHMENTS

A. Site Map

Attachment A – Colville Service Unit Nespelem image1.png