Description
The National Park Service is seeking a contractor to repair the earthen roof at Fort Tompkins, located within the Gateway National Recreation Area. The project involves removing and replacing masonry, repointing breast-height walls, and installing a waterproofing system. The contractor will also need to remove soil down to existing structures under archaeological monitoring and provide erosion control. The scope of work includes repairing damaged stone, resetting loose brick, and replacing broken brick. The contractor must take care to protect the historic metal balcony and brackets, as well as the concrete parapet wall.
• Remove and replace masonry as required to access leader chase
• Repoint breast-height walls and gun bases above and below grade
• Repair damaged stone where possible
• Reset traverse block
• Provide waterproofing system, including waterproofing membrane, percolation mat, drainage panel, and root barrier
• Remove soil down to existing structures under archaeological monitoring
• Provide erosion control
• Repair and repoint brick arch over culvert
• Remove unsound cementitious parging and provide infill to match existing
• Repair top of brick vault where damage is exposed