Statement_of_Work.pdf

STATEMENT OF WORK (SOW)

Replacement of Wood Shutters and Doors – Tortugas Harbor Light

Prepared by: Jorge Balboa, AIA, LEED AP BD+C Historic Architect, Everglades, Dry Tortugas and Biscayne National Parks jorge_balboa@nps.gov

Dry Tortugas National Park – National Park Service

1.0 PROJECT OVERVIEW

The National Park Service (NPS), Dry Tortugas National Park, requires the reconstruction and installation of all wood shutters and doors at the Tortugas Harbor Light, which were destroyed during Hurricane Ian on September 27–28, 2022. The lighthouse, constructed in 1876 and listed as a contributing resource to the Fort Jefferson National Monument Historic District, sustained complete loss of its exterior wood assemblies. This Statement of Work defines the services, materials, documentation, and performance requirements necessary to restore the lighthouse’s exterior envelope in accordance with historic preservation standards.

2.0 BACKGROUND

Hurricane Ian passed directly over Dry Tortugas National Park with sustained winds of approximately 120 mph, resulting in the destruction of all shutters and doors on the 1876 cast-iron lighthouse. Several units were detached from the structure, and all were damaged beyond repair. The lighthouse consists of four tiers of precast iron with twelve openings: ten shuttered windows and two sets of double-leaf doors. A limited number of shutter and door fragments were salvaged and are stored on Garden Key for reference. Temporary protective coverings have been installed over all openings.

3.0 SCOPE OF SERVICES

The Contractor shall provide all labor, materials, equipment, transportation, documentation, and professional services necessary to complete the following tasks:

3.1 Field Verification and Documentation

• Conduct a site visit to verify existing conditions, dimensions, and opening configurations.

• Review and document salvaged shutter and door fragments stored on Garden Key.

• Prepare measured drawings of all openings prior to fabrication.

3.2 Documentation

• Contractor must submit shop drawings, fabrication details, and installation procedures.

• Submit shop drawings, fabrication details and installation procedures for NPS review and approval prior to fabrication. Mock-ups shall be required and approved by the NPS prior to fabrication.

• Ensure all documentation complies with the Secretary of the Interior’s Standards for the

Treatment of Historic Properties. Photo documentation shall be required before, during and after the work is completed.

3.3 Fabrication Requirements

• Reconstruct all shutters and doors as board-and-batten assemblies matching the profiles, dimensions, and joinery of salvaged examples.

• Use cypress as the primary wood species; salvaged old-growth Miami-Dade Pine may be proposed as an alternate.

• Incorporate minor refinements only where necessary to improve moisture and air infiltration resistance, subject to NPS approval.

• Fabricate all required metal hardware, including hinges, fasteners, and custom components, based on surviving historic examples.

• Prime and paint all wood elements in accordance with NPS/MFG-approved guidelines and specifications.

3.4 Installation Requirements

• Remove and dispose of all temporary protective coverings currently installed over lighthouse openings.

• Install all shutters, doors, and hardware in accordance with approved shop drawings.

• Ensure proper alignment, operability, and weather-tightness of all assemblies.

• Date-stamp each wood element discreetly with the year of installation.

3.5 Quality Assurance

• Provide a quality control plan outlining inspection points during fabrication and installation.

• Coordinate with NPS representatives for periodic inspections and final acceptance.

• Correct any deficiencies identified during inspection at no additional cost to the

Government.

3.6 Contractor Qualifications

• Historic Wood Fenestration Experience — Offerors shall demonstrate at least three comparable historic preservation projects within ten years involving exterior wood shutters, doors, or similar assemblies.

• Preservation Carpentry Expertise — Contractor personnel must be proficient in traditional joinery and late-19th-century maritime or lighthouse carpentry techniques, consistent with the Secretary of the Interior’s Standards.

• Remote-Site Work Capability — Offerors shall show prior experience executing construction or preservation work in remote, vessel- or aircraft-access locations, with clear logistical planning for transport and weather contingencies.

• Custom Fabrication Capacity — Contractor must be capable of fabricating custom wood assemblies matching historic profiles and materials, using skilled preservation carpenters able to meet NPS durability and authenticity requirements.

4.0 DELIVERABLES

• Field measurements and condition assessment report

• Architectural shop drawings and fabrication details submitted prior to NPS approval

• Hardware specifications and samples (if requested)

• Completed fabrication of shutters, doors, and hardware

• Installation of all assemblies

• Final inspection report and closeout documentation

5.0 PERFORMANCE PERIOD

The Contractor shall complete all work within the performance period established by the

Contracting Officer in close coordination with DRTO Park Management. Work on Garden Key may be subject to transportation schedules, weather conditions, and park operational constraints.

6.0 GOVERNMENT-FURNISHED INFORMATION (GFI)

• Salvaged shutter and door fragments stored on Garden Key

• Historic reference materials and drawings (if available)

• Access to the lighthouse and temporary protective coverings

7.0 APPLICABLE STANDARDS

• Secretary of the Interior’s Standards for the Treatment of Historic Properties

• NPS Preservation Briefs and Technical Notes

• NPS specifications for wood fabrication, coatings, and hardware

• All applicable federal, state, and local regulations

8.0 PROJECT JUSTIFICATION

The Tortugas Harbor Light is a nationally significant historic resource listed on the National

Register of Historic Places. The loss of shutters and doors exposes the cast-iron structure to accelerated deterioration and compromises the historic integrity of the lighthouse. Restoring these elements is essential to protect original fabric, maintain the historic appearance of the

1876 structure, and fulfill the park’s legislative mandate to preserve nationally significant resources.

9.0 EXPECTED OUTCOMES

• Restoration of the lighthouse’s exterior envelope

• Protection of cast-iron structural components from wind-driven rain and marine exposure

• Increased durability and resiliency in future storm events

• Preservation of historic character and improved visitor experience