SOW - 30807913 Repair Spalling Concrete Supply Building.docx

DEPARTMENT OF HOMELAND SECURITY

UNITED STATES COAST GUARD

AIR STATION BARBERS POINT

1 CORAL SEA RD

KAPOLEI, HAWAII 96707

SCOPE FOR

Repair Spalling Concrete Supply Building

AT

AIR STATION BARBERS POINT

KAPOLEI, HAWAII

1.01 SCOPE OF WORK: Repair spalling concrete at the Supply Building 1669 located at Air Station Barbers Point, Kapolei, Hawaii. The contractor will remove and repair spalling cracks in masonry walls and concrete columns, clean all exposed steel of corrosion, and repaint to reduce the potential for further deterioration. Additionally, the contractor will clean and repaint the embed and bearing plates of precast single-T’s. All work shall match the building’s existing appearance to maintain historical integrity. The contractor shall furnish all labor, materials, equipment, and professional services necessary to perform the following work, which includes but is not limited to:

A. Verify existing conditions of the location, all dimensions, areas, and quantities of material during the site visit prior to bid submission. Contractor shall mobilize all necessary equipment and materials to site for repair of parapet walls, concrete columns, and exposed steel at Supply Building 1669.

B. Secure the work area, set up necessary barriers and signage, and conduct a thorough inspection of all spalling cracks, corrosion, and water damage. Document the extent and severity of damage.

C. Repair Spalling Cracks:

a. Identify and mark all spalling cracks on masonry walls and concrete columns. Total area of the 4-foot-tall parapet wall is approximately 1680 sq. ft. The total estimated area of visible spalling is approximately 412 square feet, with damage in various locations on all four sides of the building.

b. Remove loose material around the spalling cracks using appropriate tools.

c. Clean the exposed area to remove debris and contaminants.

d. Repair the cracks using suitable repair materials that conform to industry standards and ASTM specifications.

D. Repair Water Damage:

a. Conduct a thorough assessment to identify areas affected by water damage on building interior and exterior.

b. Remove all damaged and contaminated materials.

c. Repair or replace damaged materials, ensuring all work meets industry standards and best practices for water damage restoration.

E. Clean and Repaint Exposed Steel, Embed, and Bearing Plates:

a. Identify all steel within concrete as well as embed and bearing plates of precast single-T’s that require attention.

b. Clean corroded steel surfaces using appropriate methods to remove corrosion.

c. Apply a rust-inhibiting primer to cleaned steel surfaces.

d. Repaint the steel with a high-quality, corrosion-resistant coating that conforms to industry standards.

F. Replace rubber membrane seal in any area where it was removed to complete repairs.

G. Provide a minimum one-year warranty covering labor and materials, or longer if manufacturer’s warranty exceeds this period.

H. Dispose of all debris and waste materials in accordance with environmental regulations and industry standards. Remove all equipment and materials from the site. Restore work areas to their original condition.

I. Conduct a final inspection of all repaired areas. Document the completion of work and ensure compliance with project specifications.

J. Building 1669 was constructed in 1962 and is therefore eligible for listing in the National Register of Historic Places (NRHP). This proposed federal project is considered a federal action and undertaking, as defined by 36 CFR Section 800/16(y). Pursuant to the requirements of 36 CFR 800.2, the USCG is required to conduct a National Historic Preservation Act (NHPA) Section 106 consultation with the State Historic Preservation Office (SHPO), Native Hawaiian Organizations (NHOs), representatives of local governments, and additional consulting parties. The contractor must wait for mobilization until the Section 106 consultation is completed. All work on Building 1669 shall follow Secretary of the Interior Standards for Historic Properties (36 CFR 67), including but not limited to the following:

a. Assessing, Cleaning, and Water-Repellent Treatments for Historic Masonry Buildings (Preservation Brief 1): Surveys a variety of cleaning methods and materials and provides guidance on selecting the most appropriate method and the gentlest means possible. Discusses water-repellent and waterproof coatings, the purpose of each, the suitability of their application to historic masonry buildings, and possible consequences of their inappropriate use.

b. Dangers of Abrasive Cleaning to Historic Buildings (Preservation Brief 6): Cautions against the use of sandblasting to clean various buildings and suggests measures to mitigate the effects of improper cleaning. Explains the limited circumstances under which abrasive cleaning may be appropriate.

c. Preservation of Historic Concrete (Preservation Brief 15): Discusses the characteristics of concrete and causes of deterioration. Includes information on cleaning, maintenance, repair, and protective systems.

d. The Use of Substitute Materials on Historic Building Exteriors (Preservation Brief 16): Provides general guidance on the use of substitute materials as replacement materials for distinctive features on the exterior of historic buildings.

e. The Preservation and Repair of Historic Stucco (Preservation Brief 22): Describes the evolution of stucco as a building material, beginning with a brief history of how stucco is applied, and how its composition, texture, and surface patterns have changed. Includes guidelines on how to plan for and carry out repair of historic stucco, with sample mixes for 18th, 19th, and 20th century stucco types.

1.02 General Items:

A. SAFETY: During the execution of this contract, the contractor shall conform to the rules and regulations set forth by OSHA Safety and Health Standards, 29 CFR Part 1926—Safety and Health Regulations for Construction. The contractor shall provide barriers, canopies, temporary fencing, etc., wherever work could cause injury to people or damage to buildings, structures, landscaping, equipment, or vehicles.

B. CONSTRUCTION INSPECTION REQUIREMENTS: Construction inspection is the responsibility of the contractor. This responsibility, as established by FAR 52.246-12, requires that the contractor maintain an adequate inspection system and perform inspections to ensure the work conforms to contract requirements. The contractor shall maintain inspection and test records and make them available to the Contracting Officer. The government reserves the right to inspect and test any phase of the work at all reasonable times without relieving the contractor of any responsibility for contract compliance.

C. MATERIALS: All materials shall be new, commercial-grade, and suitable for permanent installation in a coastal environment. Substitutions or alternates must be approved by the COR.

D. DEMOLITION: All demolition shall be done in an orderly and careful manner. Patch areas using materials appropriate to match surrounding materials and finishes. Protect existing work that is to remain in place or be reused, or that remains the property of the Government. Provide new supports and reinforcement for existing construction weakened by demolition or removal work.

E. CONSTRUCTION: All work shall be done in accordance with the manufacturer’s instructions and referenced publications. Field-verify site conditions prior to bid. Contractor is responsible for understanding site conditions; no claims will be accepted for limited access, crane/lift requirements, or unforeseen installation challenges. Contractor shall remove and legally dispose of excess demolished material and maintain daily housekeeping of the work site.

A. Primary: LT David Satava at (571) 608-5159, David.l.satava@uscg.mil B. Secondary: Ms. Theresa Fasceski at (571) 608-5159, theresa.m.fasceski1@uscg.mil

A. SANITARY FACILITIES: Toilet facilities are available for Contractor use at or near the job site. The contractor shall ensure the facilities remain clean or permission will be revoked.

B. WATER AND ELECTRICITY: Water and 120V electricity are available at no cost to the contractor. The contractor is responsible for the cost of any utility connections and disconnections.

C. TELEPHONE: Not available at site.

1.10 Attachments – Photographs of Existing Damage

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