INVITATION FOR SUBCONTRACTOR BIDS We are requesting sub bids and material quotes from Certified DVBE, LBE, DBE, MBE, WBE, SBE and all others for: Project: Encinal Jr/Sr High School New Gym Bid Date/time: 5/27/26 @ 2PM Location: Alameda, CA Owner: Alameda Unified School District This is a Lease Leaseback Guaranteed Maximum Price Project awarded to Alten Construction and Scope Includes: Construction of a new, full-size gym with multisport court striping & bleachers, a weight room & lobby with toilet rooms. Access to the new gym will include vestibules for student & public entry. Duration June 2026 TBD. A schedule will be issued as part of Bid Clarification / Addendum prior to bid. SPECIAL REQUIREMENTS/NOTES: This is a Best Value project. All bid submissions will be scored through a Best Value scoring system. The scoring breakdown will be provided in a Bid Clarification prior to bid / Subcontractors are required to submit fully burdened labor rates as part of their bid submission / Project Labor Agreement (PLA) Applies to this project / Skilled & Trained Workforce Requirements See PLA / Prevailing Wage & Weekly Certified Payroll Reports on LCP Tracker / See Insurance Requirements in the "Owner Contract Extract" File for Insurance Requirements to Include in your bid / 5% Retention / RFI Deadline is a week prior to bid / MEP+FS Subs MUST be Prequalified with District 2 weeks prior to bid / $2,000 per Calendar Day - Liquidated Damages / Non-Mandatory for Subs / Highly Recommended Site Walk See Bid Clarification for Site Map / Refer to "Owner Contract Extracts for Sub Bids" folder on Building Connected for additional bid documentation to include in your bid. / 1-Year General Warranty (refer to your spec section for other potential warranties) New as of 1/1/24: PLEASE SUBMIT CURRENT CARB/DOORS CERTIFICATIONS WITH YOUR BID! New California Air Resource Board or C.A.R.B. requirements apply to all subcontractors with diesel equipment on-site. It is now State of CA law to include CSLB license # & DIR # on bid sub list make sure to put them on your bid scope's 1st page! Alten Construction may or may not implement a CCIP (Contractor Controlled Insurance Program) on this Project, however - bidders are required to include the cost for all required insurance in their bids. Subcontractors & Suppliers are required to comply with Alten's standard subcontract(s) If you would like a copy, please email bids@altenconstruction.com. TRADES NEEDED (but not limited to): Surveying; Earthwork; Driven Piles; Drilled Piers, Asphalt Concrete Paving & Base; Site Concrete; Cast in Place Detectable Tactile Warning Surfaces; Slipsheet; Acrylic Recreational Surfacing; Chain Link Fencing & Gates; Landscape Irrigation & Planting; Utilities Water, Sanitary Sewage, Site Drainage; Concrete Reinforcement; Cast-In-Place Concrete; Concrete Floor Finishes; Polished Concrete Finishing; Structural & Misc Steel; Structural Steel Framing; CF Metal Framing; Metal Fab/Handrails &Railings/Access Ladders; Stair Nosings; Rough Carpentry; Finish Carpentry; FRP; Insulation; Air Barrier Wall Systems; Weather Barriers; Under Slab Vapor Retarders; Metal Roof Panels; Mod Bit Membrane Roofing; Sheet Metal Flashing & Trim; Roof Accessories & Specialties; Joint Sealants; Misc. Doors, Frames & Hardware; Entrances & Storefronts; Access Doors & Panels; Translucent Roof Assemblies; Windows; Glazing; Louvers; Concrete Floor Prep/Moisture & PH Testing; PC Plaster; Gypsum Board; Tiling; Acoustical Ceilings; Linear Plank Metal Ceiling System; Cushioned Wood Flooring; Resilient Flooring; Resilient Athletic Flooring; Fluid Applied Flooring; Wall Covering; Wall Panels; Cementitious Wood Fiber Wall & Ceiling Panels; Int. & Ext. Painting; Signage; Toilet Accessories; Fixed Sun Screens; Facility Fall Protection; Gymnasium Equipment; Telescoping Bleachers; Miscellaneous Site Furnishings; Fire Protection; Plumbing; HVAC; Electrical; Telecomm System; Stationary Assisted Listening System; Electronic Security & Safety; Access Control and Alarm Monitoring; and Fire Alarm System with Voice Evacuation. Plans & Specifications are available for review and take-off in our office & free download on Building Connected and will be posted with all major builders' exchanges in the SF Bay Area. Contact Alten Estimating Dept. at Phone: 1-510-234-4200 x47 or 26 or Email: bids@altenconstruction.com Fax: (Dial 1 + Area Code even from a 510 number) 1-510-234-4221 ATS 6967427; May 13, 20, 2026