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Tender Details
- Country: USA
- Summary: Dam Pier Concrete Repairs Montgomery Locks and Dam
- UST Ref No: 89168764
- Deadline: 30 Nov 2023
- Competition: ICB
- Financier: Self Financed
- Purchaser Ownership: Public
- Tender Value: Refer Document
- Notice Type: Tender
- Document Ref. No.: W911WN23B8014
- Purchaser's Detail :
- Description :
- Description
Dam Pier Concrete Repairs, Montgomery Locks and Dam, Monaca, Beaver County, Pennsylvania
The U.S. Army Corps of Engineers, Pittsburgh District, has a requirement for a project at the Montgomery Locks and Dam which comprises eleven (11) concrete dam piers, each measuring approximately 15--9 ¼” wide by 87--0” long by 58--6” high, with an elevation of 664.5- above the normal lower pool level. These piers were originally constructed in the 1930s and are currently exhibiting an overall fair to poor condition. Common deficiencies observed in the piers include delamination, spalls with exposed reinforcement, failed patched areas, and significant cracks in multiple locations.
Of particular concern are the pier noses, which are in poor condition, characterized by heavy efflorescence build-up, spalls with exposed reinforcement, unsound patched areas, and cracks up to 1” in width. To mitigate these issues and enhance the structural integrity of the piers, the selected contractor will undertake a series of maintenance efforts, focusing on concrete repair and epoxy grouting of cracks.
Scope of Work:
The dam pier concrete repairs involve the following key activities:
1. Survey and Assessment: Conduct a comprehensive survey of the concrete surfaces to assess the extent of damage and identify specific areas that require repair.
2. Concrete Repair: Remove and replace spalled and/or unsound concrete in the piers to restore their original strength and integrity.
3. Crack Grouting: Utilize epoxy grouting techniques to address and stabilize cracks in the concrete surfaces, preventing further degradation.
4. Installation of Government Furnished Flashboard: To facilitate repairs to the piers immediately adjacent to the fixed crest weirs, the Contractor shall install and remove the Government Furnished Flashboards in order to reduce the river flow overtop of the weirs. Only one set of flashboards is provided sufficient to close off the river ... - Documents :
Purchaser : DEPT OF DEFENSE
Contracting Office Address : PITTSBURGH , PA 15222-4198
Primary Point of Contact : CONNIE FERGUSON
connie.l.ferguson@usace.army.mil
Phone Number 4123957551
Secondary Point of Contact : Janie RONEY
janie.l.roney@usace.army.mil
Phone Number 4123957474
Email :connie.l.ferguson@usace.army.mil
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