B08_Attachment_1_SOW.docx

DATED 06/28/2022

SECTION 01 10 00

GENERAL REQUIREMENTS

PART 1 - DESCRIPTION OF WORK

1.1 BACKGROUND: Historically the comfort stations were maintained on an as needed until water intrusion would create damage to interior ceilings. The new proactive maintenance program is to have the roofs replaced prior to end of built-up roof useful life span to avoid leaks and other damages.

1.2 The work of this contract consists of the removal, installation, and repair of 3 tar and gravel roofs and associated appurtenances within Golden Gate National Recreation Area. All work will be performed under a single contract. The North Restroom, Central restroom, and the South Restroom are in Marine Way, Stinson Beach, CA 94970, Golden Gate National Recreation Area Marin County, California.

GPS LAT 37.898751° LON -122.641103°

1.2.1 Contractor will do a total built up roof replacement. The built-up roofing system shall be a Four Ply Gravel Surface Fiber Glass Built Up Roof. For use over wood or other nail-able deck on incline of up to 3 inches per ft.

1.2.2 The South Restroom which is approximately 1,100 Square Feet (SF), Central restroom which is approximately 900 SF, and the North Restroom which is approximately 1,100 SF. The contractor shall remove all current tar and gravel roof layers, 4” copper flashing, downspouts, skylights, vents, and any damaged or dry rotted sheathing. Contractor will need to haul off all materials to an appropriate landfill from the worksite.

1.2.3 Install a new built-up roofing (tar & gravel), 4” copper gravel stops, skylights, vents, downspouts, and sheathing to the Manufacturer’s specifications. The contractor is responsible for all final measurements.

1.2.4 Contractor shall replace up to 120 SF of damaged or dry rotted sheathing for South, Central, and North Restroom roofs according to the recommendations of the Engineered Wood Association. The contractor will follow all APA recommendations and install new oriented strand board (OSB) Exterior Exposure 1 or better sheathing. New sheathing shall match the same thickness of the existing sheathing.

1.2.5 Roof Sheathing: Install sheathing with face grain perpendicular to supports, and with end joints staggered and located over supports. Allow 1/8-inch space between panel ends and edges. Support edge joints with sheathing clips centered between each support.

1.2.6 Contractor shall replace all roof’s copper gravel stops and downspouts to match existing color, size, and gauge.

1.2.7 Application of the new roof materials shall be in a manner to allow the removal of water promptly and completely. Areas where water ponds for more than 24 hours are unacceptable.

1.2.8 Surfacing-Aggregate shall meet the requirements of ASTM D 1863. Aggregate must be installed so that there is complete coverage across the entire surface to the manufacturer’s specifications.

1.2.9 Asphalt shall meet the requirements of ASTM D 312 and be applied to the roof per manufacturer’s specifications.

1.2.10 Contractor shall replace gravel to match current gravel size, color. Aggregate should meet the requirements of ASTM D 1863. GRAVEL: ASTM D1863-83. Match existing, ½” gray color gravel. Contractor will provide sample prior to application for approval from CO and COR.

1.2.11 Contractor will paint the fascia boards and flashing that are currently painted on the building. Contractor shall match the existing color on the flashing, fascia boards, and downspouts. Contractor shall use Muir Woods Brown, Exterior, Low Sheen paint. NPS will provide paint vendor/s and color number to contractor.

1.2.12 The contractor shall replace the skylight to match the color, finish, size, functionality, commercial grade, and use corrosion resistant fasteners to match specifications of existing skylights

1.2.13 Outside Dimension for skylights.

South Restroom:

a. 2 ea.: 50 ½” X 50 ½” (approx.)

b. 4 ea.: 26 ½” X 26 ½” (approx.)

Central Restroom:

a. 2 ea.: 50 ½” X 50 ½” (approx.)

North Restroom:

a. 2 ea.: 50 ½” X 50 ½” (approx.)

b. 4 ea.: 26 ½” X 26 ½” (approx.)

NOTE: Current existing skylights are Model:

2222-S-CM-D.O.-1-FTH-IR-HW (25 1/4” x 25 1/4”) 4646-S-CM-D.O.-1-FTH-IR-HW (49 1/4” x 49 1/4”)

1.2.14 The new skylights shall meet or exceed OSHA Standard 29 CRF 1910.23 (e)(8) load requirements.

a) The skylights shall be high wind resistant.

b) The skylights shall have a Burn Rate -Classified as CC1 material.

c) Lens finish shall be opaque white.

d) Replacement dimensions shall be sized to existing skylights. The contractor shall verify all dimensions.

e) The replacement skylights shall be adequately secured to the existing aluminum frame with no less than 3 fasteners per side of the replacement dome.

f) Replace the rolled roofing around the skylight’s curbs with materials in kind.

1.2.15 Contractor will be responsible for all Lead and Asbestos testing and provide report of results. Testing and report shall be provided to NPS for review before any roofing material is removed.

1.3 All work will be performed under a single contract.

PART 2 - EXISTING UTILITIES

2.1 There should be no need for any excavation during this project or utility location.

PART 3 - CONTRACTOR’S USE OF PREMISES

3.1 ON-SITE WORK HOURS: Work shall be generally performed during normal business working hours of 8 a.m. to 6 p.m., Monday through Friday, except when otherwise indicated.

3.2 CONSTRUCTION CAMP: N/A

3.3 STORAGE – STAGING AREAS:

A. Confine Storage of materials and equipment to the project area. Contractor can use an area of the parking lot but will need to provide fencing to cordon off work area from the public. Limits of use and control shall be subject to Contracting Officer’s approval.

3.4 PRESERVATION OF NATURAL FEATURES: N/A

3.5 HAULING RESTRICTIONS: N/A

3.6 HOUSEKEEPING:

A. Keep project neat, orderly, and in a safe condition always. Store and use equipment, tools, and materials in a manner that does not present a hazard. Immediately remove all hazardous rubbish. Do not allow rubbish to accumulate. Provide onsite containers for collection of rubbish and dispose of it at frequent intervals during progress of work which will include asphalt tar paper, plywood, gravel and or other materials used for this project.

B. Dispose of waste materials legally using park trash receptacles, which will include food waste, wrappers, bottles, and cans used for personal consumption of workers during their workday.

PART 4 - COMMENCEMENT, PROSECUTION, AND COMPLETION

4.1 The Contractor shall commence work within 10 calendar days after the date of receipt of the "Notice to Proceed."

PART 5 - EXAMINATION OF THE SITE

5.1 All bidders are urged to visit the job site and examine existing conditions before submitting bids. All bidders will be held to have the same knowledge concerning the site and the on-ground conditions as if they had inspected the job site.

PART 6 - ABBREVIATIONS

6.1 The following list of abbreviations, which may be used in the Construction Specifications or Special Provisions, refer to the organizations and specifications of the organizations listed below:

AASHTO - American Association of State Highway and Transportation Officials ACI - American Concrete Institute AISC - American Institute of Steel Construction AI - Asphalt Institute ANSI - American National Standards Institute ASTM - American Society for Testing and Materials AWWA - American Water Works Association Caltrans- State of California Department of Transportation FHWA - Federal Highway Administration FS - Federal Specifications MSHA - Mine Safety and Health Administration MUTCD - Manual on Uniform Traffic Control Devices NEC - National Electric Code NEMA - National Electrical Manufacturers Association NFPA - National Fire Protection Association NIOSH - National Institute of Occupational Safety and Health NPS - National Park Service NSF - National Sanitation Foundation OSHA - Occupational Safety and Health Administration PCA _ Portland Cement Association UBC - Uniform Building Code UL - Underwriters Laboratories, Inc.

PART 7 - ACCIDENT PREVENTION

7.1 DESCRIPTION: The work of this section consists of establishing and implementing an effective accident prevention program and providing a safe environment for all personnel and visitors.

7.2 SUBMITTALS:

A. ACCIDENT PREVENTION PROGRAM: At the preconstruction conference submit for approval an accident prevention program. The program shall include:

1. Name of responsible supervisor to carry out the program.

2. First aid procedures.

3. Training, both initial and continuing.

4. Planning for possible emergency situations.

5. Contractor to identify nearest location of medical facility for emergencies.

6. Recognition that work will be performed in remote areas with limited communication or cell phone coverage.

B. MEETING AND INSPECTION REPORTS: Submit a report of safety meetings and of inspections.

7.3 QUALIFICATIONS OF EMPLOYEES:

A. Ensure that employees are physically qualified to perform their assigned duties in a safe manner.

B. Do not allow employees to work whose ability or alertness is impaired because of drugs, fatigue, illness, intoxication, or other conditions that may expose themselves or others to injury.

C. Operators of vehicles must always obey speed limits in the park area. All staff will refrain from using foul or obscene language in a public family setting.

7.4 ACCIDENT REPORTING: The Contractor shall report all accidents to the Contracting Officer as soon as possible and assist the Contracting Officer and other officials as required in the investigation of the accident.

7.5 FIRST AID FACILITIES: Provide adequate facilities for the number of employees and the type of construction at the site.

7.6 PERSONNEL PROTECTIVE EQUIPMENT: Meet requirements of NIOSH and MSHA, where applicable, as well as ANSI.

7.7 EMERGENCY INSTRUCTIONS: Post telephone numbers and reporting instructions for ambulance, physician, hospital, fire department, and police in conspicuous locations at the work site.

7.8 PROTECTIVE EQUIPMENT:

A. Inspect and maintain other protective equipment and devices before use and on a periodic basis to ensure safe operation.

B. It is the Contractor's responsibility to require all those working on or visiting the site to always wear necessary protective equipment.

7.9 SAFETY MEETINGS: As a minimum, conduct 15 minute "toolbox" safety meetings. These meetings shall be conducted by a foreman and attended by all construction personnel at the worksite.

7.10 HAZARDOUS MATERIAL ACTION: It shall be the responsibility of all operators and contractors, functioning within the park to properly cleanup, mitigate and remediate if necessary, all unauthorized discharges of hazardous materials or non-hazardous chemical and biological products released from fleet and/or other support vehicles or stationary sources. Response shall be consistent with guidelines established by federal, state and local regulations, and as outlined within the operator's Safety or Hazardous Materials Business Plan.

A. If a spill, leak or other release occurs, the operator shall as soon as possible, without impeding cleanup, notify the National Park Service Emergency Dispatch.

PART 8 - PRECONSTRUCTION CONFERENCE:

8.1 PRECONSTRUCTION CONFERENCE: Before start of construction, Contracting Officer will arrange an on-site meeting with Contractor. The meeting agenda will include the following:

Roles and Responsibilities Key Personnel National Park Service regulations Documents required under the contract Subcontractors Labor standards provisions Modifications Payments to Contractor Payroll reports Technical Issues Correspondence procedures Acceptance/Rejection of Work Construction Meetings Submittal of shop drawings, project data, and samples Accident prevention program (including name of responsible supervisor) Accident reporting Safety program (compliance with the "Accident Prevention" clause of the General Provisions) Spill Response Plan Saturday, Sunday, holiday and night work Contract Time Tentative construction schedule Notice to Proceed

PART 9 - SUBMITTALS

9.1 DESCRIPTION: The work of this section consists of submittal requirements before and during construction.

9.2 Equipment: Vehicles, trailers and other equipment as needed.

Shop Drawings: Not Applicable (N/A)

Product Data: Provide MSDS for all materials that have chemical hazards for this project. Provide other data and vendor for all materials that will be installed.

Samples: Gravel

A. For submittals specified above, forward submittals to Contracting Officer at least 15 days before need for approval.

B. After approving submittals, Contracting Officer will return one copy to the Contractor.

C. If submittals are not approved, Contracting Officer will return all copies to Contractor with reasons for rejection. Resubmit, identifying changes.

D. Any work done before approval shall be at Contractor's own risk.

9.3 APPROVED EQUALS: A request for approval constitutes a representation that Contractor:

A. Has investigated the proposed item and determined that it is equal or superior in all respects to that specified.

B. Will provide the same warranties for the proposed item as for the item specified.

C. Has determined that the proposed item is compatible with interfacing items.

D. Will coordinate the installation of an approved item and make all changes required in other elements of the work because of the substitution.

E. Waives all claims for additional expenses that may be incurred as a result of the substitution.

9.4 PROGRESS SCHEDULES: As soon as possible after Notice of Award and before beginning any work, submit Progress Schedule. Contracting Officer will review the Progress Schedule for format and content. Submit four copies of Progress Schedule (normally in bar chart form) showing estimated starting and completion dates for each part of the work. The first progress payment will not be issued until an acceptable progress schedule is submitted.

PART 10 - TEMPORARY SERVICES

10.1 DESCRIPTION: The work of this section consists of providing temporary services required for Contractor's performance of the work of this Contract.

10.2 FIRE PREVENTION AND PROTECTION:

A. Hazard Control: Take all necessary precautions to prevent fire during construction. Provide adequate ventilation during use of volatile or noxious substances.

PART 11 - PROJECT CLOSEOUT

11.1 DESCRIPTION: The work of this section consists of final cleanup, closeout submittals, final inspection procedures, and safety precautions.

11.2 CLEANING: Remove all tools, equipment, surplus materials, and rubbish. At time of final inspection, project shall be thoroughly clean and ready for use.

11.3 SUBSTANTIAL COMPLETION AND FINAL INSPECTION: Submit written certification that project is substantially complete, and a final inspection is requested.

Contracting Officer will make an inspection within 10 days of receipt of request.

A. When Contracting Officer determines that the work is substantially complete; he will prepare a list of deficiencies (“Punch List”) to be corrected before final acceptance and issue a Letter of

B. Substantial Completion.

C. If Contracting Officer determines that the work is not substantially complete; he will immediately notify Contractor in writing, stating reasons. After completing work, Contractor shall resubmit certification and request a new final inspection.

11.4 ACCEPTANCE OF THE WORK: After all deficiencies have been corrected, a Letter of Acceptance will be issued. A Release of Claims document must be executed and submitted to the Contracting Officer before final payment can occur.

END OF SECTION

01 10 00 - 5 General Requirements OVERHEAD SECTIONAL DOORS RFQ No.