Specifications include, but are not limited to: Contractors are invited to submit Proposals to provide historic stone masonry repair at the Weeks State Park Fire Tower. The project will involve an examination of the existing historic stone masonry fire tower, including material testing of existing mortars, and the removal and replacement of existing mortar. It will also include the removal and repair of sealant joints, repairs to cracked cast concrete sills and arches, and the replacement of missing stone masonry. The Weeks State Park Fire Tower is located in a National Historic District and the work shall be performed in accordance with the Secretary of the Interior’s Standards for the Treatment of Historic Properties. Candidate firms will submit a Proposal in support of completing a project that would address the following scope of work: 1. Perform material testing of historic mortars to determine the material properties and compatibility with new mortars to be installed. 2. Remove all loose, cracked, or hard mortar to a minimum depth of two inches, but not less than a depth required to reach sound existing conditions. Mortar removal shall include both the exterior and interior walls of the structure. 3. Re-point the masonry with historically accurate mortar that matches the material properties and color of the original mortar. 4. Replace all loose or missing stones from the interior and exterior of the structure, and the stone arches under the wood framed fire tower cab. Stones shall be of a type and size that matches the existing tower stones. 5. Remove areas of existing sealant patches and replace with historically accurate mortar/grout. 6. Patch existing arches with concrete/mortar matching existing construction. 7. Treat the exterior of the structure with a water-resistant (not water-proof) sealant that is designed for stone masonry structures. 8. Prior to the start of construction provide submittals of all materials to be used on the project to the DNCR department Architect and the Bureau of Historic Sites for review and approval. 9. Provide construction management and oversight services, including biweekly project meetings with DNCR staff. 10. Provide a fee proposal with an itemized schedule of values for the Work.
