Maintenance Facility - Design-Build RFP - Phase I

Firms will be short-listed and then Phase II process will move forward - Schedule for Phase II is as follows: Mandatory Pre-Proposal meeting 11/9/2020 at 10:00 AM via Webex. Individual meetings with shortlisted firms will be held 12/2/2020. Phase II questions submitted via email by 1/15/2021 at 5:00 PM. Phase II submittals from short-listed firms due 1/26/2021 by 2:00 PM. Interview for firms selected will be held 2/10/2021 via webex. The proposed building has overall dimensions of 118 feet by 316 feet. The approximate eastern half of the building plan will consist of storage bays and a wash bay for snowplows and salt trucks. The central part of the building plan will include office space, a break room, a mechanical room, a materials lab, and locker rooms. The western part will include maintenance bays, a general shop, a parts / tool room, and tire storage. The majority of the structure will consist of metal framing supported by columns. The office area will be supported by load bearing concrete masonry unit (CMU) walls. Per the information provided, the maximum wall and column loads of the new building will be 3 kips per lineal feet (klf) and 125 kips, respectively. The loads on the floor slab in pounds per square foot (psf) were not provided; however, wheel loads in excess of 20 kips may be anticipated. A heavy floor slab on the order of 8 inches in thickness is anticipated. The finished floor elevation of the new building will be approximately at EL. 612.00 feet. Fill height up to two (2) feet is anticipated to achieve final grade. An underground stormwater detention system (e.g. Stormtrap) is planned to be constructed in the proposed parking area northwest of the new building. The bottom depth of the proposed detention structure will be about 5½ feet below final grade (about EL. 606 feet). The vaults are typically constructed on concrete pads with a required soil bearing pressure of 3,000 psf. At the time this report was issued, the final design of the vault was not complete (Phase I). Based upon the Draft Civil plans, the proposed grades in the proposed pavement areas east of the new building will be in the range of EL. 610 to EL. 611 feet. These elevations appear to be within one foot of existing grades. For the proposed traffic loads, PSI was provided the following by IDOT and Graef. The Design Service Life will be 50 years

Division 03 -	Concrete, Cast-in-Place Concrete.
Division 06 -	Wood, Plastics, and Composites, Rough Carpentry.
Division 07 -	Thermal and Moisture Protection, Dampproofing and Waterproofing.
Division 10 -	Specialties, Signage, Protective Covers, Transportation Stop Shelters.
Division 12 -	Furnishings, Multiple Seating, Pews and Benches, Benches.
Division 26 -	Electrical, Lighting.
Division 31 -	Earthwork.
Division 32 -	Exterior Improvements, Bases, Ballasts, and Paving, Curbs, Gutters, Sidewalks, and Driveways, Sidewalks.
Division 33 -	Utilities, Storm Drainage Utilities.