SOW Sidewalk and Stairs Replacement NWS WFO Juneau REQUIREMENTS-26-2252.pdf

STATEMENT OF WORK (SOW)

SIDEWALK AND STAIRS REPLACEMENT

NATIONAL WEATHER SERVICE (NWS)

WEATHER FORECAST OFFICE (WFO) JUNEAU

PURPOSE

The construction project will remove and replace the existing: sidewalk on the east side of the building (approximately 290 square feet), stair lower landing (approximately 40 square feet) and stair tread & riser (approximately 40 square feet) to be removed and replaced with new heated concrete stairs, landing and sidewalk. New concrete sidewalk and stairs to include electric heating with snow sensor, and new stair lighting at the National Weather Service (NWS) Weather Forecast Office (WFO) Juneau located at 8500 Mendenhall Loop Road, Juneau, AK 99801.

TECHNICAL SPECIFICATIONS

General

SCOPE OF WORK

Demo and dispose of existing sidewalk, lower stair landing, stair tread & riser, railings, and replace. Install new lighting at stairs. Railings must be painted to match existing railing. This scope includes any required subgrade work needed to support the new sidewalk, stairs, as well as backfill, topsoil, and seeding at disturbed areas adjacent to the work.

Each bidder may thoroughly examine the work area and be familiar with the SOW, drawing specifications and provided documents. The failure or neglect of a bidder to examine the site, or understand the requirements of this SOW, its attached photos, drawing specifications or any part thereof must in no way relieve it from any obligations with respect to its bid or to the resulting contract. No claim for additional compensation will be allowed which is based upon a lack of knowledge of any contract document. The retaining wall is integral to the sidewalk and stairs, the integrity of the retaining wall must be preserved during the process. Refer to images 4 and 5.

A site visit for prospective quoters will be scheduled after the Request for Quotation (RFQ) is issued. A site visit is not required but is encouraged.

The scope of work includes the following activities:

- Demolition: Activities include removal and disposal of existing sidewalk, lower stair landing, stair treads and risers, handrails, as described and required for replacement.

- The contractor will be responsible for any and all damages associated with this work.

- New Construction:

1. Perform any sub-grading, compaction, etc. as required to support new construction.

2. Form, install reinforcing, place, finish, and cure new sidewalk, lower landing and stairs including very top step back to remaining sidewalk without elevation change

3. Abrasive nosings to be installed on stairs

4. New sidewalk and stairs are to be heated, with snow/freeze sensors

5. Electric heating to be connected to building power

6. New concrete have rebar drilled into and epoxy bonded to existing concrete

7. Expansion joint and joint sealant at cold joints.

8. New lighting in the stair area.

9. Install new railings painted to match.

10.Remove forms and backfill/grade as necessary to match adjacent material and contours.

Topsoil and seed as required.

11.The Contractor is responsible for all miscellaneous matters necessary for completion of this work.

12.The Contractor will be responsible for repairing any damage to the existing sidewalk and existing sidewalk heating system.

13.All materials are to be installed per manufacturer’s specifications and instructions.

14.Commissioning of the heating system to ensure proper operation.

Project Coordination

The Contractor must schedule and coordinate on site work with the WFO Juneau MIC. The Contractor will provide at least a 48 hour advance notice for alternative parking arrangements.

Work must not initially commence without a representative of the NWS being present onsite.

The Contractor is responsible for installing safety fencing to keep pedestrian and automobile traffic out of the work site. The barricades will not be removed by the contractor until the MIC has been notified that the work is complete and access is now permitted.

The scope of this project includes the following infrastructure improvements: Remove and Replace Existing Sidewalk(s), stairs: Existing concrete must be replaced in accordance with applicable building codes. Remove existing concrete, haul off site, and dispose of as required by local law. Concrete to be finished to match adjoining surfaces. Construction areas must remain barricaded and fenced off until the area is cured properly and can support foot traffic.

Concrete work must conform to American Concrete Institute (ACI) 301, ACI 318, and applicable American Society Testing Materials (ASTM) standards. Concrete must be 4000 PSI.

Concrete testing at a minimum to include pre pour slump and air tests and 3-7-21 break tests.

Snow-melt system design and performance shall be based on American Society of Heating, Refrigerating and Air conditioning Engineers (ASHRAE) snow-melting design criteria. Concrete placement, reinforcement, testing, curing, and cold-weather protection shall be performed in accordance with these standards.

All electrical work associated with the snow-melt system, including conductors, raceways, junction boxes, controls, sensors, grounding, overcurrent protection, and equipment connections, must be installed in accordance with the current adopted edition of the National Fire Protection Association (NFPA) 70, National Electrical Code (NEC), manufacturer installation requirements, and all applicable federal, state, and local codes. Electrical installations shall be performed by qualified personnel and tested for proper operation prior to acceptance. Ground-fault protection shall be provided where required by the NEC and manufacturer specifications.

Weather Limitations

The concrete must be placed when the atmospheric temperature is within the manufacturer’s recommended range for application. Any placed concrete must be protected until cured properly.

Project Deliverables Schedule:

Schedule/Milestones Required Date

Contract Award N/A

Submittal of:

Project Schedule Site Safety and Health Plan Quality Control Plan

10 business days after Contract Award

Government Review of Items Submitted by Contractor

10 business days after receipt of submission that includes Initial Project Schedule, Site Safety Plan and Quality Control Plan.

Continuity of Service Plan 15 business days after Contract Award

Submittal of:

Design Documents: Plans and Specifications

30 business days Post Award Kickoff Meeting

Material/Equipment Specifications

Government Review of Items Submitted by Contractor

10 business days after receipt of Design Documents and Material/Equipment Specifications

Post Notice to Proceed (NTP) Kick-Off Meeting

Five (5) business days after NTP

Construction Activities Start 30 calendar days after NTP

Construction Activities Complete 180 calendar days after NTP

Pre-final Inspection & materials turnover

5-10 business days after Construction Activities Complete

Final Inspection No later than end date of period of performance per NTP

Minor punch list items, where applicable

Up to 10 business after final inspection

TECHNICAL POINT OF CONTACT:

The following email will go to all NOAA/NWS Technical Points of Contact for this project -

TBD

List of Project Team will be provided

WORK CONSIDERATIONS/RESTRICTIONS

1. Building Access: Pedestrian access to building entrances/exits must always be maintained for the duration of construction. The Contractor must clearly demarcate pedestrian access paths, so they are easily recognizable and safe.

2. Work Hours: NOAA/NWS WFO Juneau is operational during normal work 24/7/365.

Contractor work hours must be limited to 7:00am to 8:00pm unless otherwise approved by NWS. Work can also be performed on weekends between the hours of 7:00am to 8:00pm.

3. Contractor Staging Area: A staging area has not been designated and will be decided after award of the project.

4. Construction Debris: The Contractor will not be allowed to utilize existing NWS dumpsters. All construction debris must be placed in a contractor-controlled dumpster at the end of every shift. Debris will not be allowed to accumulate on site. Coordinate location of dumpster with NWS.

5. Restrooms: Restrooms in NWS will not be available for contractor use. The Contractor must provide temporary on-site provisions for construction personnel use for the duration of construction.

6. Road Closures: The Contractor must be responsible to coordinate any road closures with the appropriate entities. A minimum of seven (7) days advance notice prior to the shutdown is required.

7. Construction Permit(s): The Contractor will be responsible for procuring construction permit(s), including permit fees, as applicable, prior to start of construction.

8. Inspections: The Contractor will be responsible for coordinating substantial completion and final completion inspections with the appropriate entities. A minimum of five (5) days advance notice prior to the inspection is required.

9. Protection: The Contractor will be required to protect concrete from damage until cured.

10.Weekly Coordination Meetings: The Contractor is required to hold weekly construction coordination meetings. Time and place to be determined. The Contractor is to provide email to interested and described parties/individuals containing each meeting minutes.

11.Protection: The Contractor is responsible for protecting and maintaining existing roads, concrete, asphalt, curbs, landscaping, etc. throughout construction.

12.Safety Considerations: The Contractor must limit dust, excessive noise, and provide traffic controls and designated personnel as needed to provide a safe work environment for NWS users. The Contractor must follow all applicable Occupational Health and Safety Administration (OSHA) requirements for this project and provide any applicable Safety Data Sheets (SDS) for all materials used on this project prior to commencing work.

Site Safety and Health Plan must include project site information, roles and responsibilities, points of contact, hazard analysis, emergency procedures, PPE, equipment safety, incident reporting, medical/emergency contacts, and partitioning off areas under construction.

13.Daily Reports: While the Contractor is onsite, they will provide a daily report. Daily report will detail work accomplished the previous day and outlook for the following day.

The report will include pictures of work being accomplished. The report can be sent via email to Point of Contracts (POCs) listed in SOW. While the Contractor is onsite the government and contractor will hold a weekly progress meeting discussing progress, schedule, key milestones and any challenges.

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TECHNICAL POINT OF CONTACT: