The Utah Department of Transportation is seeking proposals for the construction of an addition to an existing building. The purpose of this addition is to provide a snow plow storage bay. CONSTRUCTION: The addition is to be a metal building with 3 insulated walls and an insulated roof. The roof height of the addition is to be field determined just below the existing building height. The roof slope will be maintained. The addition is to be 25’x 90’ in size, connected to the north side of the existing maintenance station structure. See Photo. Use materials compatible with the existing building, including: gauge, size, color, and industry accepted construction methods and codes. Seal roof and wall connections to prevent entry of birds from the outside. There will be one 16’wide x 14’ tall overhead door opening on each end. The garage doors will be installed by others, but the openings, bracing and electrical required will be installed by the contractor per included overhead door attachment. There will be two 3/0 x 7/0 man doors, one on each end. The man doors will be supplied and installed by the contractor. The contractor will connect to the existing building electrical panel and install 3 - LED 24” high bay light fixtures with a single three-way switch at each man door along with a double outlet on the wall below. In addition to the 3 exterior walls, steel post and beam construction will be attached to the existing building. This will carry the necessary additional snow/roof load. the proposed post layout is 22.5' O.C. Attach support columns to existing building footings. Footing dimensions will be 10" thick by 18" wide with 3 strands of #4 bar running longitudinally. The footings are to be below frost depth. The stem wall is 8" thick with #4 rebar vertically 2' on center. The floor is to be attached to the existing building with horizontal #4 rebar 24" O.C. and sealed against moisture and salt. The floor will slope from east to west at a minimum of 1%. The floor is 6” thick with #4 rebar 12" O.C. both directions. Concrete is to be AA/AE 4000 psi State approved mix. Sub-base is 6” of untreated road base underneath compacted to 95 % maximum laboratory density.
