Description
The Illinois Department of Natural Resources is seeking a vendor to make drainage improvements to the exterior of the Interpretive Center at Cahokia Mounds State Historic Site in Collinsville, Illinois. The project includes gutter improvements, site grading, structure removal, foundation waterproofing, and drainage improvements. The vendor shall provide all labor, equipment, and materials required to complete the work. Key features of the project include:
• Demolition of existing masonry garden walls
• Addition of curved radius aluminum seamed or seamless gutters and downspouts
• Repair of an approximately 50 linear feet section of existing EPDM-lined in-roof gutter system
• Resealing of the perimeter expansion joint between the building and exterior sidewalk
• Regrading of earth areas around the building perimeter to ensure positive slope away from the building
• Removal and replacement of small sections of heaved concrete sidewalk
• Installation of exterior foundation wall drain and outlet tile
• Site erosion control and restoration
The vendor shall also provide extended warranties for certain materials and services, and shall abide by all site regulations and coordinate with the Site Superintendent and site staff.