A.2.11.4 W9128A22R0004 Am-0006 Kaunakakai Harbor - Specifications.pdf
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- Solicitation number
- W9128A22R0004
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This announcement is a solicitation notice for the Kaunakakai Harbor Maintenance Dredging project in Molokai, Hawaii and the Kahului Harbor Maintenance Dredging project in Maui, Hawaii. The U.S. Army Corps of Engineers, Honolulu District intends to issue a solicitation to conduct maintenance dredging by mechanical clamshell dredge to remove accumulated sediments within the harbor limits of both locations, restoring them to authorized depths. For Kaunakakai Harbor, the estimated dredging quantity is 35,000 cubic yards, and for Kahului Harbor it is 158,000 cubic yards, for a total estimated quantity of 193,000 cubic yards across both projects. The period of performance is anticipated to be 18 calendar months. The acquisition will utilize lowest price technically acceptable procedures and will be set aside for small businesses. Offerors must register in the System for Award Management and check for any changes to the solicitation, which is estimated to have a value between $5-10 million.
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Kaunakakai Harbor Maintenance Dredging KAUNAKAKAI damage to corals from scour. Anchor systems should be inspected daily and monitored over time to assess integrity and potential damages to coral.
Contractor shall provide GPS coordinates of anchor location and verification that mid-line floats are operational to USACE on a weekly basis.
Upon the completion of construction, the Contractor shall submit to the Contracting Officer a signed certification that coral avoidance areas were not directly impacted by dredging operations.
In the event that coral has been damaged during dredge operations, the contractor shall immediately stop work and notify USACE and Hawaii Department of Land and Natural Resources - Department of Aquatic Resources (DLNR-DAR) to determine the appropriate corrective action.
Turbidity barrier/curtain anchors shall have a sufficient mass and spaced to secure the barrier as recommended by the manufacturer depending on the current velocities.
The contractor shall develop a contingency plan in the event of inadvertent damage to coral. The minimum following requirements shall be included in the contingency plan.
a. The contractor shall immediately stop work and notify USACE that unintended damage to corals may have occurred.
b. The contractor shall conduct an underwater survey to quantify damage to coral within 10 business days of determining that damage to coral may have occurred.
c. The contractor shall concurrently investigate and correct the cause of the damage to coral.
d. If no damage is detected, dredging will resume. If damage is detected, then contractor shall directly coordinate with DLNR Hawaii Department of Land and Natural Resources - Department of Aquatic Resources to determine the appropriate corrective action.
2.1.8 Mooring Buoys
Mooring buoys shall have provisions for the mooring line to be securely attached and be sufficiently buoyant to remain afloat under normal load conditions. Mooring placement will account for vessel draft to ensure they remain afloat at the lowest tide. Mooring lines shall remain taut throughout construction to avoid risk of entanglement or seafloor scour.
2.1.9 Lighted Buoys
Lighted buoys shall be manufactured self-contained buoys with automatic flashing lights (on at dusk, off at dawn) installed at 100 feet on center along the outer perimeter of the containment area.
2.2 Environmental Clamshell Bucket
An environmental bucket is required only when mid-depth silt curtains are deployed or if a visible plume emanates from the active dredge area. A non-environmental clamshell bucket may be used when full-depth curtains
SECTION 01 57 19 Page 19 (Am-0006)
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