Renovation of a water / sewer project in Hillsboro, Oregon. Completed plans call for the renovation of a water / sewer project.

Contractor shall complete the work as specified or indicated in Owner's Contract Documents for the Project. The Project generally consists of the following: Furnish all labor, materials, and equipment necessary to: 1. Demolish and dispose of the existing Digesters 3 and 4 roof covers and related appurtenances, except for the pressure/vacuum relief valve assemblies, which are to be removed and returned to Owner for salvage. 2. Temporarily remove and pull back all existing electrical, mechanical and instrumentation to allow full demolition and installation of new digester roof covers. All conduit that is to be removed will be replaced with new conduit. 3. Remove and return two Mixer Control Panel assemblies on Digester 4 to Owner for salvage. 4. Provide new digester covers and appurtenances on Digesters 3 and 4 in accordance with the Specifications and approved Submittals. 5. Install conduit and all previously removed electrical, mechanical and instrumentation equipment. 6. Provide sidewall hatches with access doors and pipe penetrations where shown at the lower level of both Digesters 3 and 4. 7. Provide stairs from the roof of Digester 3 down to the roof of the adjacent building. The Work Site is located at Rock Creek Water Resource Recovery Facility, 3235 SE River Road, Hillsboro, Oregon 97123 (Site). The Work is a public works project subject to ORS 279C.800 to 279C.870. For questions regarding administrative and technical issues, contact Owner: Michelle Mann, 503.547.8035, mannm@cleanwaterservices.org. Each Bid must be submitted on the prescribed Bid Form and accompanied by Bid security as prescribed in the Instructions to Bidders. Bidders must deliver the original of the Bid security to Michelle Mann either by first class mail to Administration Building Complex, 2550 SW Hillsboro Hwy, Hillsboro, OR 97123 (Owner's Office) or by hand delivery to the Rock Creek Water Resource Recovery Facility, 3235 SW River Road, Hillsboro, Oregon 97123 within five business days after the Deadline. Owner reserves its right to reject all Bids or any Bid not conforming to the intent and purpose of the Bidding Documents. Question Deadline 10/30/2025 at 4:00 PM PT All questions about the meaning or intent of the Bidding Documents are to be submitted to Owner via email. Only questions answered by formal written Addenda will be binding. Oral and other interpretations or clarifications will be without legal effect. Substantial Completion 610 calendar days Final Completion 640 calendar days Rehabilitating the existing fixed steel covers is the most suitable option for Digesters 3 and 4. During the structural inspection, some damage in the form of coating failure and corrosion was observed. However, the observed damage is not at a level that justifies replacement of the steel covers. The rate of the corrosion of the steel members will accelerate if the coating failure is not addressed in near future. Therefore, Carollo recommends that the covers be repaired and recoated within the next five years. Repair and recoating the covers will extend their expected useful life by 10 to 15 years. In order to remediate the corrosion of the existing steel covers effectively, the covers need to be removed and located in a flat staging area specifically allocated for rehabilitation work. In addition, the concrete ballast blocks need to be temporarily removed. The ballast blocks are required for balancing the uplift forces during the operation of the digester will therefore need to be reinstalled. Rehabilitation of the steel covers will also include removing and replacing the sealant material used to fill the annular space between the previously floating covers and the concrete walls. This material should be tested for presence of potentially hazardous materials, e.g. asbestos and coal tar.