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Bidjugde
JOB
BID 2026-78 Tri-City WRRF Aeration Basin Improvements
BID DATE
11/10/26 - 7:00
AGENCY
Clackamas County
ESTIMATE
$3,700,000
SCOPE
Clackamas County, on behalf of Water Environment Services, BID 2026-78: Tri-City Water Resource Recovery Facility (WRRF) Aeration Basin Improvements, 15941 S Agnes Ave, Oregon City, OR. Work in two summer shutdown seasons in Aeration Basins AB1-AB4: cleaning of drained basins and channels; reconfiguring and replacing ALP piping with control valves and flow transmitters in Aeration Zones 2-5 (adding Zone 2 controls); replacing diffuser membranes in AB1, AB3 and AB4; extending AHP piping for new Zone 2 pneumatic flow control valves and instrument cleaning air; new stainless steel tubing to dissolved oxygen probes; and related mechanical, electrical, instrumentation and controls work. Engineer's estimate $3,700,000. Substantial completion within 700 days after the Contract Times commence; final completion 30 days after. State prevailing wages. MANDATORY pre-bid conference Wednesday, October 21, 2026 at 1:00 PM at the Tri-City WRRF Administration Building, 15941 S Agnes Ave, Oregon City, OR 97045; prime bidders arriving more than 10 minutes late will not be permitted to bid. Bids due November 10, 2026 at 2:00 PM Pacific via Bid Locker (https://bidlocker.us/a/clackamascounty/BidLocker); opened publicly after closing. Contact: Tralee Whitley, TWhitley@clackamas.us , (503) 742-5453. https://oregonbuys.gov/bso/external/bidDetail.sda?docId=S-C01010-00018145&external=true&parentUrl=close
PREBID
10/21/2026 6:00

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