Aluminum Access Hatch Replacement

Job Location 6570 Hamburg Road, Brighton MI Question Acceptance Deadline 02/28/2023 04:00 PM EST Questions are submitted online No The City of Brighton, Michigan desires to employ the services of a contractor, or contractors, for the removal and replacement of an aluminum access hatch located in the concrete floor of the Upper Gallery at the Wastewater Treatment Plant. All questions must be submitted via email (brooksc@brightoncity.org) Clarifications to bid documents shall be requested in writing via email to the Director of Public Services, Marcel Goch, at gochm@brightoncity.org. This project consists of the removal and replacement of an aluminum access hatch located in the concrete floor of the Upper Gallery at the wastewater plant. This hatch is used as an access point to remove heavy equipment and machinery from the Lower Gallery of the wastewater plant via a crane and chain fall that is located above the hatch. The existing hatch is approximately 78" long and 58" wide. Installation of a new JD-AL H2O Bilco aluminum hatch (or equivalent approved by the owner or city engineer) Size of opening is to be verified by the contractor prior to ordering the new hatch. Carefully remove existing hatch doors and frame. Remove remnant loosened concrete materials that may have occurred due to hatch frame removal using light hammer chipping or similar method. Remove loose concrete on the existing cement opening and, on the ceiling, directly under the hatch. Apply Sika restoration to all concrete surfaces that have existing cracks/damage or where damage was created from frame removal, as specified by manufacturers material handling, guidelines/ specifications. Use Sika Dur 32 HI-MOD with Sika VOH bonding agent for surface preparation. Comparable products must be approved by the owner or City engineer. Specifications and application instructions are provided with the product. Allow cure time as specified by Sika specifications. Surface preparation of existing substrate should be clean and dry. Hi-Mod is to be applied 'wet on wet' to bonding agent, but this should be verified with specifications provided by Sika. Once concrete is repaired install new retrofit hatch frame, per Bilco specifications. Additional support needs to be added under the frame on the short side of the frame, see detail attached in bid documents. Install new hatch system, per Bilco specifications.

Division 02 -	Existing Conditions, Subsurface Investigation.
Division 03 -	Concrete, Precast Concrete.
Division 04 -	Masonry, Unit Masonry.
Division 05 -	Metals, Structural Metal Framing, Metal Fabrications.
Division 06 -	Wood, Plastics, and Composites, Rough Carpentry.
Division 07 -	Thermal and Moisture Protection, Dampproofing and Waterproofing, Thermal Protection.
Division 08 -	Openings, Doors and Frames, Windows, Hardware.
Division 09 -	Finishes, Painting and Coating.
Division 10 -	Specialties, Signage, Compartments and Cubicles, Emergency Aid Specialties, Fire Protection Specialties, Storage Assemblies.
Division 11 -	Equipment, Laboratory Equipment.
Division 14 -	Conveying Equipment.
Division 21 -	Fire Suppression, Fire-Extinguishing Systems.
Division 22 -	Plumbing, Instrumentation and Control for Plumbing, Plumbing Piping, Plumbing Equipment, Plumbing Fixtures.
Division 23 -	Heating, Ventilating, and Air Conditioning (HVAC), Instrumentation and Control for HVAC, HVAC Air Distribution.
Division 26 -	Electrical, Instrumentation and Control for Electrical Systems, Interior Lighting, Emergency Lighting, Exit Signs, Exterior Lighting.
Division 27 -	Communications, Structured Cabling, Data Communications, Voice Communications, Distributed Audio-Video Communications Systems.
Division 28 -	Electronic Safety and Security, Electronic Access Control and Intrusion Detection, Access Control, Intrusion Detection, Electronic Surveillance, Electronic Detection and Alarm.
Division 31 -	Earthwork, Earthwork Methods.
Division 32 -	Exterior Improvements, Flexible Paving, Rigid Paving, Curbs, Gutters, Sidewalks, and Driveways, Fences and Gates, Turf and Grasses.
Division 33 -	Utilities, Water Utilities, Storm Drainage Utilities, Electrical Utilities, Communications Utilities.
Division 44 -	Pollution and Waste Control Equipment, Common Work Results for Pollution and Waste Control Equipment, Air Pollution Control, Noise Pollution Control, Odor Control, Water Pollution Control Equipment, Solid Waste Control and Reuse, Waste Thermal Processing Equipment, Fluidized Bed Combustion Equipment, Rotary Kiln Incinerators, Pyrolysis Equipment, Hazardous Waste and Medical Waste Incinerators, Heat Recovery Equipment for Waste Thermal Processing, Synthesis Gas Cleanup and Handling Equipment.