Specifications include, but are not limited to:The Massachusetts Department of Conservation and Recreation (DCR) is seeking proposals to supply and install three (3) vinyl fabric dome shelter systems on existing concrete block rock salt storage bins. Storage bins are constructed of standard 6’ x 2’ concrete block. Storage bin dimensions can be slightly altered by the Contractor if necessary for installation, but shall maintain the same approximate storage area. Prospective vendors are required to complete a site visit and visual inspection of the facilities in advance of providing a proposal. Sites should generally be open during regular business hours of each depot, 7AM to 2:30PM Monday – Friday. Please contact Scott Brinch at >617-780-2223 if unable to access a facility. Locations: Lower Basin Depot 10 North Point Boulevard, Cambridge MA Revere Depot 660 Ocean Avenue, Revere, MA Nahant Depot 1 Nahant Road, Nahant, MA General Material Specifications FRAME OF STRUCTURES - Structural Steel Truss. - Heavy duty anchoring system. - Designed and built to Eastern Massachusetts Wind and Snow loads. MAIN COVERS - Main cover panels constructed from heavyweight Polyvinyl Chloride Fabric, UV protected, cold tested to -40C, and fire retardant. (Or comparable product) END PANELS