PIEE #W911WN26QA043

Concrete Repair Services for Tionesta Dam Control Tower Stairwell

This opportunity from the U.S. Army Corps of Engineers, Pittsburgh District, focuses on concrete repair services for the stairwell of the Intake Tower at Tionesta Creek Lake. - Government Buyer: - U.S. Army Corps of Engineers, Pittsburgh District - Scope of Work: - Demolition and removal of unsound concrete in stairwell - Installation of non-shrink, low-pressure injection grout to reduce seepage - Reinforcement using horizontal, vertical, and bent-hook bars, doweled and epoxied into the structure - Application of a concrete bonding agent - Installation of a hydrophilic waterstop along all joints - Placement and vibration of new concrete for consolidation and uniform finish - Repair Area: - Approximately 8 feet high, 7 feet wide, and at least 8 inches deep (or until sound concrete is reached) - Notable Requirements: - All work must address seepage and structural integrity - Procurement is a 100% Small Business Set-Aside under NAICS 237990 (Other Heavy and Civil Engineering Construction) - OEMs and Vendors: - No specific OEMs or vendors are named in the solicitation - Products/Services Requested: - Concrete repair services (no part numbers or quantities specified) - Unique Requirements: - Use of hydrophilic waterstop and non-shrink grout - Reinforcement bars must be doweled and epoxied - Concrete must be placed and vibrated for uniform finish

Description

The U.S. Army Corps of Engineers, Pittsburgh District, requires repairs to a deteriorated section of concrete within the stairwell of the Intake Tower at Tionesta Creek Lake. The repair is necessary to restore watertightness, prevent inundation of interior spaces during high-water events, and maintain safe access for project personnel. The deteriorated section of concrete is located at elevation 1116.5 and encompasses an area approximately 8 feet high from elevation 1116.5, 7 feet wide from the right wall, and at least 8 inches deep, or until the contractor encounters sound concrete. The contractor shall sound the concrete, mark the limits of demolition, and remove all unsound material. After demolition, a non-shrink, low-pressure injection grout shall be installed around the full perimeter of the existing concrete to reduce seepage from the gatewell into the stairwell. Reinforcement shall be installed, which includes horizontal, vertical, and bent-hook bars that are doweled and epoxied into the existing structure. All reinforcement must maintain a minimum clear cover of three inches. A concrete bonding agent shall be applied to all existing surfaces. A hydrophilic waterstop shall be installed along all vertical and horizontal joints to minimize future leakage. Formwork shall be set flush with the existing wall face, and new concrete shall be placed and vibrated to ensure full consolidation and a uniform finish. The North American Industrial Classification Code (NAICS) is 237990 – Other Heavy and Civil Engineering Construction. The Small Business Size Standard is $45,000,000.00. This procurement is a 100% Small Business Set-Aside. All interested and capable offerors are encouraged to submit a quote. Information regarding the U.S. Army Corps of Engineers process for settling requests for equitable adjustments and duration goals to achieve definitization of equitable adjustments for change orders under construction contracts can be found by going to https://www.usace.army.mil/Strategic-Partnerships/Partnering/mod/129895/details/443/ then scrolling down on right hand side of page by clicking on “View FFP Contract Changes Playbook Here”.

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