Inactive

** The response date for the subject sources sought notice has been extended to Friday, 22Sept2023 ** W912EE - THIS IS A SOURCES SOUGHT NOTICE for THE PURPOSE OF CONDUCTING MARKET RESEARCH ONLY. THIS ... ** The response date for the subject sources sought notice has been extended to Friday, 22Sept2023 ** W912EE - THIS IS A SOURCES SOUGHT NOTICE for THE PURPOSE OF CONDUCTING MARKET RESEARCH ONLY. THIS IS NOT A REQUEST FOR PROPOSAL, QUOTATION OR BID, NOR IS THIS A SYNOPSIS OF A PROPOSED CONTRACT ACTION. The USACE Vicksburg District is seeking qualified and capable contractors with the capability to perform the scope of work indicated below, and who are capable of mobilizing immediately upon award of a contract. The proposed action is anticipated to be an emergency construction project, resulting in a firm fixed-price contract. No reimbursement will be made for any costs associated with providing information in response to this Sources Sought request for information. The North American Industry Classification System (NAICS) code is 237990, Other Heavy and Civil Engineering Construction. The Product Service Code (PSC) is Y1PZ, Construction of Other Non-Building Facilities. The associated Small Business Administration (SBA) Size Standard is $45 Million. Responses to this Sources Sought Notice will be used by the Government to make appropriate acquisition decisions. NO SOLICITATION IS CURRENTLY AVAILABLE. Respondents will not be notified of the results of the evaluation of the information received. The purpose of this Sources Sought Notice is to gauge interest, capability, and qualifications from industry. Depending upon the responses, availability, and capability of industry to respond, a resulting solicitation may be sole-source, competitive with limited sources, or competitive with a shortened advertisement period under either an unrestricted basis or a small business set-aside. This Sources Sought Notice does not guarantee the future issuance of a solicitation; nor does it commit the Government to a contract for any construction requirements. Further, the Vicksburg District will not accept unsolicited proposals/bids. Respondents are advised that the Vicksburg District will not pay for any information or administrative cost incurred by responding to this Notice. All cost associated with responding to this Notice will be solely at the responding party’s expense. Please be advised that all submissions become Government property and will not be returned. PROJECT SPECIFIC DETAILS: The U.S. Army Corps of Engineers, Vicksburg District, requests letters of interest from qualified construction contractors interested in performing construction services for the following project: Desoto County, Mississippi, Arkabutla Lake Dam, Relief Wells, Instrumentation Installation, and Underslab Drainage System Closure, Coldwater River, Arkabutla Lake. It should be noted that all drill rig operators must be licensed in the state of Mississippi and have at least three (3) years of experience drilling with the type of equipment proposed, on at least two dam and/or levee projects. Relief wells A total of six (6) relief wells are to be installed in the backfill area of the outlet works for Arkabutla Dam in order to reduce foundation uplift pressures. Three (3) of the six (6) relief wells will be installed in the North backfill and the remaining three (3) will be installed in the South backfill. The relief wells will be 12 inches in diameter with an average depth of 70 feet. This will include 40 ft of riser and approximately 30 ft screened with #30 screen slot size. A minimum boring size of 26 inches must be used to create the minimum width of filter pack between the well screen and foundation sands. The required drilling method for this installation is reverse circulatory drilling. Each relief well will include a 12-inch diameter stainless steel lateral that will allow the relief well to gravity discharge through the concrete wing wall and into the outlet works. Each lateral will discharge 28.5 ft below the top of the wing wall at the lateral invert, meaning that the relief well/lateral connection must be made at a depth of approximately 28 ft below grade. The average length of the lateral from the relief well connection to the exterior of the outlet works wall is approximately 25 ft. The outlet works reinforced concrete wing wall that must be cored through is 3.5 feet thick. The lateral invert on the outlet works side sits just 4 feet above the stilling basin floor. Upon installation of each relief well, a step-drawdown pump test shall be performed on each relief well individually to develop the wells and to provide critical efficiency data of each new well. During the step drawdown pump tests, each well will be pumped at an initial constant rate of 250 gpm until the water level in the pumped well has stabilized, varies less than 0.1 ft./hr. Then, without turning off the pump, the rate of pumping shall be increased or stepped-up to 375 gpm, and the above-described procedure is repeated. The overall pump test shall include a minimum of 3 distinct steps for each well pump test at 250 gpm,375 gpm, and 500gpm. Instrumentation Installation and Automation A total of twenty-four (24) new open standpipe piezometers will be installed in eleven (11) boreholes of varying size and depth. Each of these instruments will be outfitted with vibrating wire instrumentation. Additionally, twenty-one (21) existing piezometers will be outfitted with vibrating wire instrumentation by the contractor. The contractor will be responsible for outfitting each piezometer with vibrating wire instrumentation and establishing automation and digital instrument data communication to the Vicksburg District’s Water Control’s observation database or a contractor established database. The contractor will provide on-site training on equipment automation, connectivity, and database communication. All new piezometers installed will have a diameter of 1.25” and be constructed with schedule 80 PVC with a #10 slot screen. The screens will be 2 feet in length. Nine (9) of the eleven (11) new open standpipe piezometer boreholes will be drilled through the embankment dam at total drilled depths ranging from 51 ft to 99 ft. There are multiple borehole locations that will need to be drilled on steep slopes ranging from 1V on 3H to 1V on 2.5H. Constructed drill pads or adjustable mast drilling rigs will need to be utilized to ensure a vertical borehole. Each borehole consists of “nested” open standpipe piezometers. This means that multiple open standpipe piezometers will be installed in each borehole at varying tip depths. The “nested” piezometers range from 2 to 3 open standpipes in each borehole. Each embankment borehole will be 10 inches in diameter to accommodate for multiple open standpipes. The granular filter pack, bentonite seal, and grout will be specified in the contract specifications. The nested piezometers will include twenty-two (22) of the twenty-four (24) open standpipe piezometers. Hollow stem auguring is the required drilling method for the embankment piezometers. Two (2) of the boreholes and piezometers will be cored through the centerline of the outlet works concrete floor and set into the subsurface foundation. This will consist of a 4-inch coring that must penetrate 5 feet of concrete slab, 1 foot of pervious concrete, an unknown depth of cement grout that exist from previous repairs, and 3 feet of foundation material in which the piezometer screen will be tipped. Due to the high discharge velocities coming from the outlet works, the piezometer riser for each outlet works instrument must be trenched into the concrete floor and wall in order to protect the riser. Since the riser must be molded to the shape of the floor, it will require multiple bends. In order for the vibrating wire instrument to sit near the piezometer screen, it will need to be installed during the installation of the piezometer screen. The wiring can then be pushed through the remaining riser sections as they are installed. Each riser will be terminated at the top of the outlet works wall where it will be outfitted with automation equipment. Underslab Drainage System Closure Currently, there are ten (10) 4-inch drains that exists across the lowest chute step leading from the conduit exit to the stilling basin. These drains discharge excess seepage flows from the outlet works foundation in order to relieve pressure. The system is compromised and must be closed off. A steel plate and gasket will be bolted to the exterior of the drains, ceasing any flows through the drains. Bolts will need to be anchored to the existing concrete in order to create a good seal. It should be noted that the relief wells will need to be installed and pumped to serve as dewatering wells prior to closing off the underslab drainage closure system and installation of the two piezometers in the outlet works. In accordance with Federal Acquisition Regulation (FAR) 36.204(f), the estimated magnitude of construction is between $1,000,000 and $5,000,000. This project has an estimated completion time of 120 Calendar Days after the receipt of Notice to Proceed, including prework submittals and material procurement. REQUIREMENTS: Interested firms should submit a capabilities package, to include the following: 1. Firm's name, address, point of contact, phone number, and email address. 2. CAGE code and UEI. 3. Firm's interest in participating in the solicitation, if issued. If your firm were to see an advertisement for this planned procurement within four to eight weeks, would your firm be interested? 4. Business classification: Small Business (SB), Small Disadvantaged Business (SDB), Woman Owned Small Business (WOSB), Veteran Owned Small Business (VOSB), Service-Disabled Veteran Owned Small Business (SDVOSB), Historically Underutilized Business Zone Small Business (HUBZone), 8(a) Program, or Other Than Small Business (Large Business). 5. Firm's joint venture information (if applicable). 6. Bonding information (provide bonding limits on the bonding company's letterhead): a. Single bond b. Aggregate c. Point of contact for the bonding company 7. All interested parties who believe they can meet the requirements are invited to submit, in writing, complete information describing their interest and ability to meet all requirements stated above. Include your firm’s capability to execute comparable work performed within the past 5 years. The provided information shall include the following: a. Brief description of the project b. Customer contact information c. Outcome of the project c. Timeliness of performance e. Dollar value of the completed projects At least three (3) projects should be provided to demonstrate competency and experience in the required areas of work. Narratives shall be no longer than ten pages. TECHNICAL QUESTIONS: 1. Describe similar projects you have experience constructing that demonstrate your capabilities to successfully perform this contract. If you are relying on a subcontractor’s experience, describe your subcontractor’s relevant experience, your history in successfully working on other contracts with this subcontractor, and what experience you have as a prime contractor managing similar contracts. In particular, reference what subsurface drilling experience you have installing wells and piezometers with respect to the drilling methods detailed above. 2. What features of work would you self-perform and what features of work would you subcontract out? 3. What equipment do you or your subcontractor own and what equipment would you have to lease in order to successfully perform this contract? As a minimum you should address the relief well drill rigs, the relief well lateral drain drilling equipment, the drill rigs for the piezometer bore holes on the slope of the dam, and the equipment associated with the piezometers to be installed in the floor of the stilling basin. 4. What dam/levee projects have you drilled at that demonstrate your capabilities and meet the requirements listed above? 5. Work on this project is associated with a declared dam safety emergency. The lake has been drawn down to reduce risks, however this project is needed to further mitigate risks and to provide additional monitoring capabilities. Notice to Proceed (NTP) is anticipated to be issued shortly after award, as soon as required bonds are received and verified. Confirm your availability to respond immediately upon receipt of NTP. SUBMIT TO: Submission shall be via email to R. Ellis Screws, Contracting Officer, at Ellis.Screws@usace.army.mil. Responses should be sent as soon as possible, but not later than 2:00 PM Central Time, August 31, 2023. Please use the following subject line for the email: “PANMVD-23-P-0000-004464 – Desoto County, Mississippi, Arkabutla Lake Dam, Relief Wells and Downstream Filter, Coldwater River, Arkabutla Lake”. Telephone inquiries will not be accepted or acknowledged. All interested firms must be registered in the System for Award Management (www.SAM.gov) and maintain an active registration for the duration of the contract to be eligible for award of Government contracts.