The work will take place at the Gulfport Biloxi International Airport and is generally described as follows: a. Demolition and replacement of existing main electrical switchboard MSB installed in 1981 and its feeder, and transformer "T-DP" also installed in 1981. b. Demolition and replacement of existing chiller plant, chillers, cooling towers, pumps, etc. and BAS front end. Open protocol BAS to include new DDC controls for chiller plant, computer server with cybersecure front end software, including chiller plant optimization software. Work also includes demolition of pumps in the Mechanical Penthouse. c. Demolition and replacement of the sanitary sewer drain piping serving the 2nd floor food services area below the floor. This work will involve removal and replacement of specific gypsum board ceilings and acoustical ceiling tiles on the first floor to access the above ceiling piping. d. Demolition and replacement of the existing fire alarm equipment with nonproprietary Notifier direct components. e. Repair of an under-slab cleanout which includes removal of a portion of concrete slab to expose the broken cleanout, replacement of the damaged section of pipe, install new cleanout, backfill and compact fill and new concrete slab. Also included is new vinyl composition floor tile. f. Demolition and replacement of ceilings are Alternates: i. Alternate #1: First floor Ceiling at Entry Lobby/Circulation (three separate areas totaling +/- 4120SF) – Removal of existing “TechStyle” fabric panels and suspension system and replacement with new acoustical ceiling tile and suspension system that closely resembles the layout of the existing ceiling and grid being demolished. All existing ceiling mounted devices, including light fixtures, HVAC diffusers, speakers, strobes, horns, sprinkler heads/concealed cover plates are to remain and stay operational during construction and are to be reinstalled in the new ceiling in approximately the same location. Temporarily support all existing ceiling mounted devices until they can be reinstalled in new ceiling. ii. Alternate #2: Second floor ceiling (area totaling +/- 1280SF) – Removal of existing “TechStyle” fabric panels and suspension system and replacement with new seamless acoustical panel ceiling and suspension system. Existing light fixtures, HVAC diffusers and 16 sprinkler heads with concealed covers will be removed and replaced with new. It is expected that all 16 sprinkler heads will need new flexible sprinkler hoses to reach the new location shown on the drawings. This alternate shall include removing and replacing the existing flexible sprinkler hose at 16 locations with new. iii. All existing ceiling mounted devices, including speakers, strobes, horns, sprinkler heads are to remain operational during construction and are to be reinstalled in the new ceiling. Existing sprinkler heads and covers shall be replaced and relocated as shown on the New Work drawings. Other ceiling mounted devices shall be relocated as shown and will require extensions of low-voltage wiring. Provide temporary lighting as required until new lighting can be installed. Temporarily support all existing ceiling mounted devices until they can be reinstalled in new ceiling. iii. Alternate #3: First floor Ceiling at Entry Lobby/Circulation (three separate areas totaling +/- 4120SF) – Removal of existing “TechStyle” fabric panels and suspension system and replacement with new acoustical ceiling tile and suspension system. Existing light fixtures, HVAC diffusers and 56 sprinkler heads with concealed covers will be removed and replaced with new. It is expected that all 56 sprinkler heads will need new flexible sprinkler hoses to reach the new location shown on the drawings. This alternate shall include removing and replacing the existing flexible sprinkler hose at 56 locations with new. All existing ceiling mounted devices, including speakers, strobes, horns, sprinkler heads are to remain operational during construction and are to be reinstalled in the new ceiling. Existing sprinkler heads and covers shall be replaced and relocated as shown on the New Work drawings. Temporarily support all existing ceiling mounted devices until they can be reinstalled in new ceiling. . Other ceiling mounted devices shall be relocated as shown and will require extensions of low-voltage wiring. Provide temporary lighting as required until new lighting can be installed. Temporarily support all existing ceiling mounted devices until until they can be reinstalled in new ceiling.