COLUMBIA LAKE DAM: SLIDE GATE ASSEMBLY REHABILITATION

INVITATION TO BID
COLUMBIA LAKE DAM SLIDE GATE ASSEMBLY REPAIRS

**Submittal deadline has been changed - new deadline is Monday, December 11, 2023 at 2:00 PM.  See Addendum #1**

Addendum 2 - December 1, 2023 - Exploratory dive was performed at the vault containing the outlet slide gate and at the intake of the inlet pipe to the vault. See PDF below for video links. Also please click below for the document from Shoreline Diving dates 11/21/23.

The Town of Columbia, Connecticut is soliciting sealed bids for assembly item replacement and repairs for the slide gate controlling the water level of Columbia Lake, located along the west
side of Jonathan Trumbull Highway (SR 87).

This project consists of all necessary work to complete repairs, as illustrated, for the lump sum base bid. Scope includes assumed replacement of the slide gate and stem, repairs, as needed,
to the wall thimble and bottom seal, and temporary diversion of flow by modification of the inlet pipe to the slide gate chamber for the duration of the work, as well as any and all
miscellaneous work associated with the slide gate repairs, as required or directed by the Owner.

A mandatory pre-bid meeting will be held at the site at 10:00 a.m. prevailing time on Tuesday, November 7, 2023.

Sealed bids will be received by the Office of the Town Administrator at the Columbia Town Hall, 323 Route 87, Columbia, CT 06237, until 2:00 PM prevailing time on Monday, November 27, 2023, when they will be opened publicly and read aloud. No Bidder may withdraw a bid for a period of sixty (60) days after the date of bid opening.

A satisfactory Bid Bond or Certified Check, in an amount equal to five (5%) of the base Bid, shall be submitted with each bid. The Bid Bond shall be made payable to the Town of Columbia and
shall be properly executed by the Bidder and acceptable sureties. All bonds must be from sureties registered in the State of Connecticut.

The Town of Columbia reserves the right to accept or reject any or all bids or options, to waive any technicality in any bid or part thereof, and to accept any bid deemed to be in the best
interest of the Town of Columbia.