Dworshak Powerhouse Roof Replacement

Title: Dworshak Powerhouse Roof Replacement:

The work is located at the Dworshak Powerhouse, Ahsahka, Idaho. The solicitation will be issued as an Invitation for Bid (IFB) and result in a single firm-fixed price construction contract. This procurement is unrestricted. Competition is open to both large and small business concerns. A small business subcontracting plan is required for large businesses. 100% performance and payment bonds will be required for this project. The North American Industry Classification System (NAICS code for this project is 238160 Roofing Contractors, and the associated small business size standard is $19 million in average annual receipts.

Solicitation number W912EF27BA001 will be posted to the SAM.gov Contract Opportunities website on or about mid to late October 2026. The bid due date will be contained in the solicitation and any solicitation amendments that may be issued.

The solicitation will be made available for download on the SAM.gov Contract Opportunities website. Offerors are responsible for checking the referenced page for any updates to the Notice. The Government is not responsible for any loss of Internet connectivity or for an offeror's inability to access the documents posted at the referenced website. Bids will be due approximately 30 days after the solicitation is posted. The exact proposal due date will be indicated in the solicitation.

System for Award Management (SAM): Offerors must register in the SAM at https://sam.gov/content/home prior to receiving an award.

NOTE: The response date that is required to post this notice is not in any way a due date for any submission. This is a pre-solicitation notice only.

Scope:

The scope of the work is to provide a durable waterproofing system for the Dworshak powerhouse and ancillary roofs. This will be achieved by removing the existing roofing system in its entirety down to the structural roof decks, followed by the installation of a new fully adhered roofing assembly to include gypsum roof sheathing, a vapor retarder, polyisocyanurate foam roof insulation, cover board, and 90-mil EPDM membrane. A 2-year installer warranty and a 30-year manufacturer warranty are required.

Fall protection guardrails constructed from fiber-reinforced plastic (FRP) will be installed to the parapet walls of the powerhouse and elevator penthouse roofs to ensure a safe work environment for maintenance personnel conducting preventative maintenance activities on the roofs. 

Fabricated metal stairs will be installed to replace existing ladder access to two roof areas.

The mechanical air conditioning unit for the elevator machine room will be replaced with a new split heat pump system with indoor air handler and outdoor condenser unit.

Roof parapet heights above the parking lot/roadway range from 36 feet high to 75 feet high. Cranes and/or telescopic boom lifts will be necessary to deliver material on to the roof surfaces. High voltage equipment and overhead transmission lines will limit placement and reach of equipment. Demolished materials may be removed using cranes, telescopic boom lifts, or debris chutes.

THE GOVERNMENT RESERVES THE RIGHT TO CANCEL THE SOLICITATION EITHER BEFORE OR AFTER THE CLOSING DATE. NO REIMBURSEMENT WILL BE MADE FOR ANY COSTS ASSOCIATED WITH PROVIDING INFORMATION IN RESPONSE TO THIS PRE-SOLICITATION NOTICE OR ANY FOLLOW-UP INFORMATION REQUEST.

All on-site work shall be performed in accordance with the Corps of Engineers Safety and Health Requirements Manual (EM 385-1-1).

Establish and manage an effective on-site Safety and Health program in accordance with EM 385-1-1 that will require the development and submission of a comprehensive project specific Accident Prevention Plan for Government acceptance. In addition, develop and submit for Government acceptance Activity Hazard Analyses for each phase of work and a project specific Fall Protection Plan that comply with EM 385-1-1.

A Site Safety and Health Officer (SSHO) employed by the prime contractor is required for each shift of the contractor's on-site operations. The SSHO shall possess a minimum of 5-years’ experience in construction safety on similar projects, shall have completed the 30-Hour OSHA Construction Safety training within the last 5 years, and shall have completed at least 24 hours of safety training from accredited safety training sources each year for the past 5 years.

Establish and manage an effective Contractor Quality Control (CQC) System that will require the development and submission of a comprehensive project specific CQC Plan for Government acceptance. A CQC System Manager employed by the prime contractor is required to be on-site for each shift of the Contractor's operations. The CQC System Manager must possess a minimum of 5 years relevant experience in a supervisory or management position such as Quality Control Manager, Quality Assurance Manager, or Construction Manager directly involved in the management of construction quality at the project site. In addition, the CQC System Manager shall have completed the course entitled “Construction Quality Management for Contractors” within the last 5 years.

Use the Government-furnished Resident Management System (RMS) – Contractor Mode to record, maintain, and submit various information throughout the contract period. RMS is a Windows-based program capable of operating on a stand-alone personal computer or on a network. The Government will make the quality control system (QCS) software available to the Contractor at time of notice to proceed.

The project involves the development and management of Contractor furnished submittals for items such as pre-construction plans, product data, test reports, and contract close-out documentation as required by the technical specifications of the contract.

Miscellaneous work within the project includes the delivery of As-Built Drawings, O&M Manuals, Contractor- Prepared Shop Drawings, and spare parts to the customer.

Solicitation Number W912EF27BA001 will be posted to the SAM.gov approximately on around mid to late October 2026. The solicitation is a Request for Proposal Important Note: The SAM.gov Contract Opportunities Response Date listed elsewhere in this synopsis is for SAM.gov archive purposes only. It does not necessarily reflect the actual bid opening date. There is no response date included in this notice. The bid due date and time will be contained in the solicitation and any solicitation amendments that are issued. Anticipated Award date is January 2027.

A site visit will be offered approximately 2 weeks after the solicitation is made available to offerors. See solicitation for details about the site visit. ACCESS FOR FOREIGN NATIONALS: Security clearance for foreign nationals to attend a site visit requires approximately 4 weeks; therefore, clearance should be requested immediately.

To request clearance, please submit the names of all foreign nationals proposed for site visit attendance, along with documentation to verify that he/she was legally admitted into the United States and has authority to work and/or go to school in the US. Such documentation may include a US passport, Certificate of US citizenship (INS Form N-560 or N-561), Certificate of Naturalization (INS Form N-550 or N-570), foreign passport with 1-551 stamp or attached INS Form 1-94 indicating employment authorization, Alien Registration Receipt Card with photograph (INS Form 1-151 or 1-551), Temporary Resident Card (INS Form 1-688}, Employment Authorization Card (INS Form l-688A}, Reentry Permit (INS Form 1-327}, Refugee Travel Document (INS Form 1-571}, Employment Authorization Document issued by the INS which contains a photograph (INS Form I-688B}. Send this information by email to leanne.r.walling@usace.army.mil and Cynthia.h.jacobsen@usace.army.mil Foreign nationals must have received clearance prior to being granted access to the project site.