Garrison Spillway Chute Subdrain Inspection Garrison Dam, ND

Questions & Answers / Clarifications

This document provides responses to vendor questions regarding the Garrison Subdrain Camera Inspection opportunity (W9128F26QA043).

• Depth Sounding: Manual measurement using a weighted tape measure is acceptable for depth sounding, supplementing continuous measurements in the video.
• Audio Feature: Audio activation for documenting specific conditions of wells, drain pipes, or instruments is acceptable, even if not continuous.
• NAICS Codes: While the solicitation references NAICS 541990, companies can add this code to their SAM profile; the NAICS code will not change.
• Weekend/Holiday Work: Work is allowed from 0700 to 2000 local time, any day of the week. Deviations require COR approval. Garrison Operations support is limited to 0800-1500 on weekdays.
• Sediment Disposal: Interim containment of sediment on the spillway chute may be acceptable, pending review and confirmation that it will not wash into the tailwater channel.
• Water Supply: Raw, non-potable water is available from a fire hydrant at the Garrison project's maintenance shop. Water may also be taken from the stilling basin and outlet channel if approved.
• Bond Requirements: This Request for Quote does not require a bid bond, performance bond, or payment bond.

This Q&A document clarifies requirements and procedures, but does not appear to alter major deadlines or submission rules. It confirms that no engineer's estimate will be provided, and a plan holders list will not be available (site visit sign-in sheets are attached to the solicitation).

Amendment / Modification

This amendment extends the response due date for the solicitation.

• The response due date and time zone have been modified.

• The deadline for submitting offers has been extended to May 21, 2026, at 2:00 PM Central Time.

• All other terms and conditions of the original solicitation remain unchanged.

Other / Unclassified

This document is a sign-in sheet for a site visit conducted on May 1, 2026, for the GDSM Subdrain Camera Inspection. It records the names, companies, and email addresses of attendees.

This document indicates which companies and individuals attended the site visit. This information may be relevant to potential bidders as it shows industry presence and potential interest in the opportunity. The attendees listed are:

• Trevor Rapp, Ground Penetrating Radar Systems, LLC
• Matt Pederson, Lakes Area Jetting (Email: LakesAreaJetting@yahoo.com)
• Eric Aakre, Lakes Area Jetting
• Patrick McNamee, Beartooth Waterjetting (Email: Pat@btwjetting.com)
• Mike Aubal, Subsurface Inc (Email: mike@subsurface-ing.com)

Amendment / Modification

This amendment modifies the original solicitation W9128F26QA043.

Key changes include:

• Addition of a second site visit: An additional site visit has been scheduled for May 1, 2026, at 10:00 AM Central Time. The original site visit was on April 28, 2026, at 9:00 AM Central Time.

• Submission of attendee information: Contractors must submit the name, email address, and company represented for each attendee to Nadine Catania and Karen Caskey via email by 3:00 PM Central Time on April 30, 2026.

• Modification of FAR Clause 52.211-18: This clause regarding "Variation in Estimated Quantity" has been updated. It clarifies that if the quantity of a unit-priced item varies more than 15% above or below the estimated quantity, an equitable adjustment in the contract price shall be made. It also outlines the process for requesting time extensions due to quantity variations.

• Addition of FAR Clause 52.222-90: This clause, "Addressing DEI Discrimination by Federal Contractors," has been added, effective April 2026.

• Modification of FAR Clause 52.211-11: This clause, "Liquidated Damages-Supplies, Services, or Research and Development," has been modified to specify liquidated damages of $483.00 per calendar day of delay if the contractor fails to deliver or perform services within the specified time.

• Site visit schedule and attendee registration details.

• FAR Clause 52.211-18 (Variation in Estimated Quantity).

• FAR Clause 52.222-90 (Addressing DEI Discrimination by Federal Contractors) - Added.

• FAR Clause 52.211-11 (Liquidated Damages) - Modified.

• The deadline for submitting attendee information for the site visit is April 30, 2026.

• The solicitation's original deadline for receipt of offers is not explicitly extended by this amendment, but bidders should be aware of the updated site visit information and revised contract clauses.

Other / Unclassified

This document is a sign-in sheet for the GDSM Subdrain Camera Inspection held on April 28, 2026, at 0900 CST. It records the names, companies, and email addresses of attendees, along with their initials.

This sign-in sheet indicates attendance at a specific event related to the GDSM Subdrain Camera Inspection. It may be relevant for bidders to understand who participated in this inspection, potentially including government representatives and contractors involved in the project. The attendees listed are:

• John Hagan (MainSaver North Central Inc. dba Pipe Detectives)
• Andrew Bangsund (MainSaver North Central Inc. dba Pipe Detectives)
• Lucas Erickson Adam (USACE - CD)
• Gamblin (USACE - LRD)

Solicitation / RFP / RFQ

This solicitation, W9128F26QA043, is for a "Garrison Subdrain Camera Inspection and Cleanout" at Garrison Dam, North Dakota. The North American Industry Classification System (NAICS) code is 541990 with a size standard of $20,000,000.00.

• The primary requirement is a cleanout and camera inspection of the Garrison Dam spillway subdrains.

• The Performance Work Statement (PWS) is detailed in Attachment 0001 and Attachment 0002.

• A Price Schedule detailing tasks is provided in Attachment 0003.

• An option item (Task #6) for flushing, measuring sediment, and reporting for power plant drainage (5,350 feet) is included.

• The solicitation issue date is April 22, 2026.

• The offer due date is May 19, 2026, at 2:00 PM local time.

• The contract type is not explicitly stated but implied to be Firm Fixed Price based on the "Pricing Arrangement" for the items.

• The clause "52.211-18 Variation in Estimated Quantity" is included, indicating an estimated quantity.

• Offers must be submitted electronically as a single PDF document not exceeding 25 pages.

• The submission deadline is May 11, 2026, at 2:00 PM Central Time for questions.

• Evaluation will be based on the following factors:

  • Factor 1 - Past Performance: Requires three references from the past five years, similar in scope, size, and complexity. Ratings will be Exceptional, Satisfactory, or Unacceptable.
  • Factor 2 - Work Plan: A Project Work Plan of no more than 3 pages is required, including a schedule, equipment list, and an example report page.
  • Factor 3 - Price: Includes all costs for the PWS tasks and optional task.

• Factors 1 and 2 combined are approximately equal in importance to Factor 3.

• This acquisition is set aside for Small Business.

• An organized site visit is scheduled for April 28, 2026, at 9:00 AM Central Time.

• Participants must meet at the Garrison Project Administration Building, 201 1st Street, Riverdale, ND 58565.

• Attendees must submit names, email addresses, and company representation to Nadine Catania and Karen Caskey by 3:00 PM Central Time on April 27, 2026.

• The document includes numerous FAR and DFARS clauses related to contract terms, conditions, and compliance.

Form / Attachment / Pricing Sheet

This document contains reference drawings for the FY26 Spillway Drainage Inspection at Garrison Dam, ND. It is provided for informational purposes only.

• Spillway Subdrain, Relief Wells, and Box Drain Figures: Includes typical figures, photographs, overview maps, and summaries of inspections and repairs from 2011-2016. Details drainage measurements and original construction drawings.
• Powerhouse Drainage Figures: Provides additional maps of the powerhouse drainage system and flow readings.

These drawings provide detailed technical information about the existing spillway and powerhouse drainage systems. Bidders involved in the FY26 Spillway Drainage Inspection should review these drawings to understand the current infrastructure, historical inspection data, and construction details relevant to the scope of work.

Statement of Work (SOW) / Performance Work Statement (PWS)

This Performance Work Statement (PWS) outlines the requirements for the cleanout and camera inspection of the Garrison Dam spillway subdrains, spillway adjacent box drains, spillway crest relief wells, and powerhouse under seepage drains. The primary objective is to assess the condition of these features to inform future dam safety modifications and ensure project performance and safety.

This project involves several key tasks:

• Task 1: Flushing, sediment measurement, camera inspection, and reporting for spillway subdrains (Rows 2-9), totaling 14,060 feet.

• Task 2: Flushing, sediment measurement, camera inspection, and reporting for Row 1 spillway subdrain, totaling 2,120 feet. This task requires special attention due to potential sediment accumulation and access challenges.

• Task 3: Flushing, sediment measurement, camera inspection, and reporting for spillway box drains, totaling 4,800 feet.

• Task 4: Depth sounding, camera inspection, and reporting for 14 spillway crest relief wells.

• Task 5: Construction of a temporary chute access staircase.

• Task 6: "All Other Work," encompassing mobilization, de-mobilization, submittals, meetings, and other general requirements.

• Task 7 (Option 1): Flushing, sediment measurement, camera inspection, and reporting for the powerplant drainage network, totaling 5,295 feet.

• The work must adhere to specifications outlined in Section 4.4 and Table 7 (Performance Requirements Summary), referencing USACE Engineer Manual 1110-2-2902.

• Key criteria include quality of cleaning, care in jetting, camera capabilities, lighting, and completeness of reporting.

• Performance will be evaluated based on these standards, and payment is contingent upon meeting them.

• The contract duration is 225 calendar days from the issuance of the award.

• Fieldwork is restricted between November 1 and April 15 due to winter conditions.

• Work locations include the Garrison Dam spillway and powerhouse areas.

• Site Access: Access to the spillway is a confined space area requiring HEC clearance and daily lock-out tag-out. A minimum of two weeks' notice is required for clearance paperwork. Powerplant drain access requires a 2-week notice to Garrison Operations.

• Safety: Comprehensive safety plans (AHA, APP, EPP, fall protection, confined space, etc.) are required submittals.

• Equipment: Contractor must provide all necessary equipment, including camera inspection tools, flushing equipment, and potentially generators.

• Submittals: A detailed submittal register and schedule are provided, with specific deadlines for various plans and reports.

• Government Furnished Items: Water supply, sediment disposal area, and pre-work cleaning/marking of spillway slab are provided by the Government.

Form / Attachment / Pricing Sheet

This document is a Price Schedule for the FY26 Spillway Drainage Inspection at Garrison Dam, ND. It outlines the specific services, estimated quantities, and unit pricing required for the inspection and maintenance tasks.

• Task #1-4 & 7: Flushing, sediment measurement, camera inspection, and reporting for various subdrain systems, box drains, and crest relief wells. Quantities are provided in Linear Feet (LF).
• Task #5: Construction of a temporary chute access staircase, priced as a single Job.
• Task #6: "All Other Work," encompassing mobilization, de-mobilization, pre-fieldwork submittals, meetings, and other unspecified requirements, priced as a single Job.
• Task #7 (OPTION 1): Flushing, sediment measurement, camera inspection, and reporting for the power plant seepage drain network, priced in Linear Feet (LF).
• Notes: Quantities for unit-priced items are estimates. The unit price will prevail in case of overruns or underruns. Prices must be entered for all items. Unit prices are considered the quoted price in case of discrepancies between unit and total prices.

This pricing schedule is critical for bidders to understand the scope of work, estimate their costs, and prepare their proposals. It details the specific services required, the units of measure, and the estimated quantities, which directly impact the financial aspects of the bid. Bidders must provide unit prices for all listed items and adhere to the notes regarding quantity variations and price discrepancies.

Form / Attachment / Pricing Sheet

This document is a Register of Wage Determinations under the Service Contract Act, issued by the U.S. Department of Labor. It provides the minimum wage rates and fringe benefits required for various occupations in North Dakota, specifically for the counties of Bottineau, Burke, Emmons, Grant, Kidder, McLean, Mercer, Mountrail, Pierce, and Sheridan. This is relevant for contractors to understand labor costs and compliance requirements for federal contracts in this region.

• Lists numerous occupations with corresponding wage rates and footnotes.
• Specifies required fringe benefits, including Health & Welfare rates.
• Includes notes on Executive Orders related to paid sick leave and minimum wage for federal contractors.
• Outlines the process for requesting additional classifications and wage rates (conformance).

Bidders must use this document to determine the minimum wages and benefits they are required to pay employees working on a federal contract covered by this wage determination. Failure to comply can result in violations. It is crucial for accurate cost estimation and proposal development.