# John Day Dam Generator Water Cooling System Rehab Canonical: https://abierto.us/opportunities/w9127n24r0006 - Solicitation number: W9127N24R0006 - Notice type: Solicitation (first published as presolicitation) - Status: Closed. Deadline was November 13, 2024 at 2:00 PM EST - Department: Department of the Army - Agency: Department of the Army - Contracting office: W071 Endist Portland (W9127N) - NAICS: 237990 Other Heavy and Civil Engineering Construction - Product or service code: Z1KA Maintenance Of Dams - Set-aside: Total small business set-aside - Place of performance: Rufus, Oregon - County: Sherman County (FIPS 41055). https://abierto.us/counties/sherman-county-or-41055 - City: Rufus. https://abierto.us/cities/rufus-or-4164200 - First posted: August 22, 2024 - Last posted: October 31, 2024 - SAM.gov: https://sam.gov/workspace/contract/opp/e2944b947ee041e0ba37c03341542a57/view ## Description 31 October 2024 Amendment 0005 - The purpose of this amendment is to provide revised specifications SECTION 40 95 00.00 26. Sections that were amended are 2.4.3 and 2.8. The sollicitation due date and time has also been revised to 11:00 A.M. on 13-NOV-2024 29 October 2024 Amendment 0004 - The purpose of this amendment is to provide revised specifications and draw ings f rom questions asked through bidder inquiries. 21 October 2024 Amendment 0003 - The purpose of this Amendment is to provide requested Resource Drawings 03 October 2024 Amendments 0001 and 0002 have been posted to the solicitation. Please see admendments for details. The U.S. Army Corps of Engineers (USACE) Portland District is soliciting a Contract for the John Day Generator Cooling Water System Rehab at John Day Dam, Rufus, Oregon. The proposed project will be a competitive, firm-fixed price (FFP) contract. **Project Scope:** The U.S. Army Corps of Engineers, Portland District, has a requirement to replace generator air cooler, header and drain piping. The work also includes the installation of modulating valves and associated controls to generator air cooler and thrust bearing discharge heard lines as well as replacing existing flow gauges for the generator air coolers and thrust bearing coolers with ultrasonic or electromagnetic technology. The described work is to be conducted on 16 units. **Background:** The John Day Powerhouse is located on the Columbia River, 112 miles east of Portland, Oregon, and is the third largest hydro-electric facility in the United States, with its 16 generators having a total capacity of 2408MW. The powerhouse lies on the border between Oregon and Washington. Units 1 to 14 are in Oregon while Units 15 and 16 are in Washington. This project is being performed to prevent or reduce water infiltration into the main unit generator windings to eliminate future failures. Since 2014, three main unit generators at John Day Powerhouse have experienced winding failures on startup that have been linked back to water infiltration into the generator windings. The purpose of this project is to minimize water leaks in the generator barrel, reduce condensation and improve water drainage. Water leaks from the generator air cooler vent pipes will be eliminated by replacing the problematic ½ inch overhead copper piping. This piping will be replaced with stainless tubing using compression or flared type connections. Soldered connections directly over the air coolers will be replace with flexible hose. This will reduce possible leak points and eliminate vent port alignment issues when swapping out coolers. The main units were designed without modulating or automatic shut off valves, despite modulating valves being standard on other government dams at time of John Day construction. Condensation will be reduced by adding modulation valves to the generator air cooler and thrust bearing oil cooler water discharge. Also, discharge flow meters will be replaced with new to eliminate the costly calibration issues with the existing devices. These modulating valves and flow meters will require associated controls and PLCs to integrate into the existing DDC system. **Contract Period of Performance:** The estimated Period of Performance for this contract is 742 days after Notice to Proceed Magnitude of Construction: The estimated cost of the project is $5,000,000 to $10,000,000. Please see attached. ## Publications - August 22, 2024: Presolicitation, due September 5, 2024 at 1:00 PM EDT. Notice dc50eb38cb7440c8ab90956489aa334d. https://sam.gov/workspace/contract/opp/dc50eb38cb7440c8ab90956489aa334d/view - August 23, 2024: Presolicitation, due September 5, 2024 at 1:00 PM EDT. Notice 0444ac4c3d9a4d7aa848948a4490b04f. https://sam.gov/workspace/contract/opp/0444ac4c3d9a4d7aa848948a4490b04f/view - September 11, 2024: Solicitation, due October 11, 2024 at 2:00 PM EDT. Notice c7fca6dc0b32419c8892cc493b4b0131. https://sam.gov/workspace/contract/opp/c7fca6dc0b32419c8892cc493b4b0131/view - September 11, 2024: Solicitation, due October 11, 2024 at 2:00 PM EDT. Notice dcc30f9605a94818a8e6dee096fbc2b3. https://sam.gov/workspace/contract/opp/dcc30f9605a94818a8e6dee096fbc2b3/view - October 3, 2024: Solicitation, due November 6, 2024 at 2:00 PM EST. Notice 0d1db6e5b942464992fbfaa976d4d7b7. https://sam.gov/workspace/contract/opp/0d1db6e5b942464992fbfaa976d4d7b7/view - October 3, 2024: Solicitation, due November 6, 2024 at 2:00 PM EST. Notice 1b3e49cbc99f4a27b3213be945c5d8a5. https://sam.gov/workspace/contract/opp/1b3e49cbc99f4a27b3213be945c5d8a5/view - October 21, 2024: Solicitation, due November 6, 2024 at 2:00 PM EST. Notice 1a5b27edaf6a46b2ae6825cdba77c519. https://sam.gov/workspace/contract/opp/1a5b27edaf6a46b2ae6825cdba77c519/view - October 21, 2024: Solicitation, due November 6, 2024 at 2:00 PM EST. Notice 945b66b3221b455994fba11ffaa861d2. https://sam.gov/workspace/contract/opp/945b66b3221b455994fba11ffaa861d2/view - October 29, 2024: Solicitation, due November 6, 2024 at 2:00 PM EST. Notice eee20d939a494e63a033d5618eb5a786. https://sam.gov/workspace/contract/opp/eee20d939a494e63a033d5618eb5a786/view - October 31, 2024: Solicitation, due November 13, 2024 at 2:00 PM EST. Notice 7ebc716236ea4378b9e9c58ddef3a0fe. https://sam.gov/workspace/contract/opp/7ebc716236ea4378b9e9c58ddef3a0fe/view - October 31, 2024: Solicitation, due November 13, 2024 at 2:00 PM EST. Notice e2944b947ee041e0ba37c03341542a57. https://sam.gov/workspace/contract/opp/e2944b947ee041e0ba37c03341542a57/view ## Points of contact - Andrew Sprys, andrew.j.sprys@usace.army.mil - Andrea Smothers, andrea.k.smothers@usace.army.mil --- Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/w9127n24r0006.