# Blackwater Dam Concrete Repairs in Webster, New Hampshire

Canonical: https://abierto.us/opportunities/w912wj24b0003

- Solicitation number: W912WJ24B0003
- Notice type: Solicitation
- Status: Closed. Deadline was February 20, 2024 at 1:00 PM EST
- Department: Department of the Army
- Agency: Department of the Army
- Contracting office: W2SD Endist New England (W912WJ)
- NAICS: 237990 Other Heavy and Civil Engineering Construction
- Product or service code: Y1QA Construction Of Restoration Of Real Property (Public Or Private)
- Set-aside: Total small business set-aside
- First posted: January 19, 2024
- Last posted: March 5, 2024
- SAM.gov: https://sam.gov/workspace/contract/opp/fc0a740a3bed4d15a3e3f2de113f9de7/view

## Description

Scope of the repairs for Blackwater Dam includes:? Inlet nosing at conduit entrances: Remove deteriorated FRP liner, remove existing concrete to sound concrete (4? deep nominal), install rebar anchors and welded wire fabric reinforcing, and apply polymer modified concrete thick patch (4 nosing total).? Flow control conduits (3 conduits): Remove deteriorated FRP surface liner on all surfaces of the conduits. Apply 2? thick polymer concrete patch upon removal of existing concrete on all walls and floor surfaces.

As needed, patch only on spalled areas concrete at the ceiling surface upon removal of the liner.? Spillway apron downstream of the conduit: Remove deteriorated FRP liners and apply, as needed, patch to spalled concrete surfaces.? Work in the conduit area will require a phased temporary flow diversion structure to direct stream flow to a single open conduit while working on two that are kept dry during the low flow construction window.

Based on the construction window with historically the low water season for the year, the Government anticipates concrete removal for repair works inside the conduits by hydro-demolition with associated pumping and waste treatment self-contained mechanical units.? At the non-overflow sections of the dam, work consists of removal of previously patched areas that are deteriorating and applying new polymer concrete patches to be followed by the application of penetrating sealer to the exposed concrete area.

In-water works will be conducted during low flow water period of Summer of 2024.The clauses at 52.236-2, Differing Site Conditions, and 52.236-3, Site Investigations and Conditions Affecting the Work, will be included in any contract awarded as a result of this solicitation.

Accordingly, offerors or quoters are urged and expected to inspect the site where the work will be performed.An organized site visit has been scheduled for January 29, 2024 at 10:00 AM ETParticipants will meet at Blackwater Dam, 43 White Plains Road, Webster, NH 03303

## Publications

- January 19, 2024: Solicitation, due February 20, 2024 at 1:00 PM EST. Notice 27b6177558694a41b2ba661a6bd3b5a2. https://sam.gov/workspace/contract/opp/27b6177558694a41b2ba661a6bd3b5a2/view
- January 19, 2024: Solicitation, due February 20, 2024 at 1:00 PM EST. Notice 426fa6a815ff44aca1a8c5a6c2c3a64e. https://sam.gov/workspace/contract/opp/426fa6a815ff44aca1a8c5a6c2c3a64e/view
- January 29, 2024: Solicitation, due February 20, 2024 at 1:00 PM EST. Notice 13ebae82118b4390a109970cd7692d25. https://sam.gov/workspace/contract/opp/13ebae82118b4390a109970cd7692d25/view
- February 2, 2024: Solicitation, due February 20, 2024 at 1:00 PM EST. Notice 24503cc63ae84c409c6669167b9856ae. https://sam.gov/workspace/contract/opp/24503cc63ae84c409c6669167b9856ae/view
- February 7, 2024: Solicitation, due February 20, 2024 at 1:00 PM EST. Notice 4472a6e06ee6497d9a95075900709438. https://sam.gov/workspace/contract/opp/4472a6e06ee6497d9a95075900709438/view
- February 7, 2024: Solicitation, due February 20, 2024 at 1:00 PM EST. Notice e7ac2c515fec48d18417fee318bd38b8. https://sam.gov/workspace/contract/opp/e7ac2c515fec48d18417fee318bd38b8/view
- February 8, 2024: Solicitation, due February 20, 2024 at 1:00 PM EST. Notice 6c7ac08db6dd42f2b487b88595e25a7f. https://sam.gov/workspace/contract/opp/6c7ac08db6dd42f2b487b88595e25a7f/view
- February 8, 2024: Solicitation, due February 20, 2024 at 1:00 PM EST. Notice 995fe8696cf448e6b70d26e61ba92db9. https://sam.gov/workspace/contract/opp/995fe8696cf448e6b70d26e61ba92db9/view
- February 21, 2024: Solicitation, due February 20, 2024 at 1:00 PM EST. Notice 4e6e8fe7e47b4e84862e5b4a4978aaba. https://sam.gov/workspace/contract/opp/4e6e8fe7e47b4e84862e5b4a4978aaba/view
- March 5, 2024: Solicitation, due February 20, 2024 at 1:00 PM EST. Notice 59856c9ed0a2439ba9bd63e45be70075. https://sam.gov/workspace/contract/opp/59856c9ed0a2439ba9bd63e45be70075/view
- March 5, 2024: Solicitation, due February 20, 2024 at 1:00 PM EST. Notice fc0a740a3bed4d15a3e3f2de113f9de7. https://sam.gov/workspace/contract/opp/fc0a740a3bed4d15a3e3f2de113f9de7/view

## Points of contact

- Tyler Maryak, tyler.s.maryak@usace.army.mil, 9783188049

---
Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/w912wj24b0003.