J-1 - Statement of Work - DEN ARTCC Entrance Repairs.pdf

Statement of Work (SOW) Main Entrance Concrete Repair

Federal Aviation Administration Denver ARTCC, 2211 W. 17th Ave. Longmont, CO 80501

1.1 Location of Work

All work in scope to be performed at:

Federal Aviation Administration Denver ARTCC 2211 W. 17th Ave.

Longmont, CO 80501

1.2 Background

The concrete slab at the exterior of Denver ARTCC’s Main Entrance is in need of repair. There are two distinct sections of this concrete slab, which have been identified as Concrete Slab A (323 SF) and Concrete Slab B (102 SF), shown on the accompanying plan. Concrete Slab A has large cracks, along with a thin concrete topping that is cracked and deteriorated over the entire surface. Concrete Slab B also has significant damage, but with large portions of the slab underneath coming apart.

Concrete Slab A is located above part of the ARTCC’s basement, making complete demolition of this area infeasible. For this reason, this section of concrete slab will need to remain in place and be repaired, with only the existing concrete topping demolished and replaced with new. Since most of the damage is the result of exposure to the elements, the solution is not only to replace the damaged concrete topping, but to protect it and the slab below from moisture. Previous repairs have been unsuccessful since steps were not taken to seal the concrete topping, resulting in the damage that exists today.

Concrete Slab B is not located over any building areas and can be completely demolished and replaced without significant impact on the rest of the building and surrounding areas. There is no need to seal this area because this concrete slab will be new and without a concrete topping.

1.3 Scope of Work

Contractor must perform the following:

Concrete Slab A

Grind and shot blast existing concrete topping to remove.

Open large cracks in slab and fill with Ardex Moisture Control Rapid. Apply fiberglass mesh to repaired cracks.

Roll a full coat of Ardex Moisture Control Rapid over area and broadcast sand.

Install 3/8” thick Ardex concrete topping over area.

Apply Neoguard Urethane Traffic Coating over area, including 4” high section along adjacent walls. Products used: 7787 Primer, FC7500 Base Coat and FC7545 Topcoat.

Concrete Slab B

Demolish existing concrete.

Place new reinforced concrete slab to replace existing.

Provide expansion joint between Concrete Slab A and Concrete Slab B with flexible caulking.

Contractor must:

Ensure that the finished product complies with current applicable ADA Standards, including ADA 403 Walking Surfaces. ADA 403.3 indicates that the running slope of walking surfaces shall not be steeper than 1:20. The cross slope of walking surfaces shall not be steeper than 1:48.

Ensure that final product must meet current OSHA 29 CFR 1910 Subpart D Walking and Working Surface requirements and specifically 1910.22(a) through 1910.22(d) which indicates surface condition requirements.

All products, materials and equipment to be used to accomplish work must be submitted to and approved by the FAA’s Contracting Officer Representative (COR) prior to commencement of work.

All work performed must meet National Fire Protection Association (NFPA), Federal, State, and local regulatory codes regardless of whether it is contained in this statement of work.

Any operations that could affect the operation of the facility or affect personnel such as noisy or dusty operations must be coordinated in advance with the FAA representative prior to commencement of work. Such operations must be planned and coordinated in a manner not to disrupt facility operations and personnel.

Contractor is presumed to be an expert in the specification, installation and operation of this type of equipment and system. As such, the contractor is expected to make all recommendations regarding the use of specific equipment and/or control strategies prior to the acceptance of any proposal.

1.4 Working Hours

Work must be conducted Monday through Friday between the hours of 7:30AM and 4:00PM except for federal holidays. Work required, other than these hours, must be coordinated with, and have prior approval from the Contracting Officer (CO) and or the designated Contracting Officer’s

Representative (COR). Work requiring a loss of service to the facility must be determined and controlled by Air Traffic operations.

1.5 Other Considerations

Site survey, if required, is to be performed by a representative of the contracting company, at no additional cost to the FAA.

Verification of all system components must be completed by the contractor.

All materials such as paint, primer, stripper, glues, and adhesives must be a low VOC/odor and approved by an FAA representative.

All applicable FAA standards and national, state and local codes must apply.

As a minimum all OSHA safety requirements must govern all activities.

FAA personnel must operate all circuit breakers, switches, valves, etc. Coordinate operation through the Contracting Officer’s Representative (COR) or other designated FAA representative.

FAA representative must be notified of personnel to be on site 24 hours prior to arrival and any person entering site may be subject to a security background check.

Any work performed without FAA representation may be subject to removal and/or inspection at the cost of contractor.

No FAA representative, other than the signatory Contracting Officer, is authorized to alter the scope of this project. Unauthorized work will not be accepted nor paid for.

Construction power is available at work site.

Contractor personnel must be escorted by an FAA employee at all times.

Contractors are required to supply all tools, materials, services, and safety equipment required to perform this work. FAA does not provide tools, materials, or safety equipment for use by contractors.

1.6 Protecting Government Property

The Contractor must take all precautions necessary to protect the existing facilities, equipment, buildings, vegetation, etc., during construction. Any areas damaged by the Contractor or any subcontractors, must be repaired or replaced by the Contractor at no additional cost. Repairs must be approved by the Site Representative and must match the original finish. The Contractor must provide all temporary covers, enclosures, barricades, etc., required to protect the existing facilities.

1.7 Waste disposal and Cleanup

Contractor must maintain a clean work environment. Contractor should not expect to use FAA dumpsters. All materials requiring disposal during construction must be removed from the site by the contractor and recycled or disposed of in an approved, responsible manner.

1.8 Warranties

All installation work and equipment must be warranted against defects in workmanship;

manufacturing defects or deficiencies, and/or oversights in installation for a period of not less than

(1) one year. Urethane Coating to be guaranteed under warranty for (5) five years. Warranties for components whose warranties extend beyond one year period must be provided.

1.9 Points of Contact

Sean Sorensen Environmental SSC Manager, Contracting Officer Representative 303-651-4401

Chad Hanson Environmental SSC Manager 303-651-4430

Donald Kammerzell Environmental SSC Systems Coordinator 303-651-4429

1.10 Photos of Existing Conditions

View of concrete slab looking north

Areas of where concrete topping and slab below has cracked and is flaking off.