Attachment E HAHD Drainage Tunnel Horizontal Well As Builts.pdf

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Attached to
Howard A. Hanson Dam Relief Tunnel Drain Maintenance
Solicitation number
W912DW24Q0028
Issued by

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This document is a Sources Sought announcement for a potential firm-fixed price service contract for drainage tunnel drain camera inspections, cleaning, decommissioning, and repairs at the Howard A. Hanson Dam (HAHD) in Washington. The government is seeking qualified small business, 8(a), woman-owned, economically disadvantaged woman-owned, service-disabled veteran-owned, and HUBZone contractors to provide these services. Respondents should provide information on their capabilities, including the estimated time to complete the work, relevant past projects, and whether NAICS code 221310 is appropriate. The government may set aside the solicitation for one of the small business categories based on the responses received. No solicitation is currently available, and responses to this announcement do not constitute an adequate response to any future solicitation. The government anticipates evaluating offers on a lowest price technically acceptable basis.

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Text version

Sand/silt on screen

Leaking end cap

Off-set screen

Grout port showing formation

Grout at joint

Screen off-set, formation visible in gap

Screen off-set, formation visible in gap

Grout port drainage.

Drain partially water filled with possible biofouling.

Clean screen at 20 feet.

Corroded screw, minor rust and crack on corroded end cap.

Corroded screws protrude through all joints.

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2024 THD4 TEST.pdf
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2024 Horizontal Drain Inspection 2.pdf
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File details come from the government source that posted it. Updated .