Government Contract | Illinois
DECOMMISSIONING OF THE THORNTON TRANSITIONAL RESERVOIR, CSA - THORNTON, ILLINOIS (RE-BID)

Bid Information


Bid Alert No: 00002694613

Bid Title: DECOMMISSIONING OF THE THORNTON TRANSITIONAL RESERVOIR, CSA - THORNTON, ILLINOIS (RE-BID)

Agency Bid No. Title: 15-266-4H5

Received Date: 07/26/2021

Close Date: 09/14/2021

Purchase Type: 550 calendar days

Estimated Amount: $20,981,000

Delivery Point: Thornton, Illinois

Delivery Date: Not Stated

Specifications

Specifications include, but are not limited to: Furnishing all materials, labor, and equipment required forinstallation of concrete tunnel plugs at the east and west ends of a section of the Thorn Creek DiversionTunnel (Diversion Tunnel); installation of mass concrete fill east of the east tunnel plug; tunnel liningand contact grouting in the Diversion Tunnel from approximately Station 135+86.40 to Station 136+33(Contract 77-235-BF stationing); removal of the rock plug in the upper Thorn Creek Connection Tunnel(Connection Tunnel); tunnel lining and contact grouting in the Connection Tunnel from approximatelyStation 2+07 to Station 0+00 (Sta. 135+86.40 in Contract 77-235-BF); and removal of concrete andmetal components, loose rock, sediment, and vegetation at the Thornton Transitional Reservoir (TTR)Diversion Tunnel Portal, within the Diversion and Dewatering Tunnels, and within the TTR. Also withinthe TTR, removal of the existing concrete haul tunnel plug. Work also includes demolition inside thecone valve dewatering chamber, including the removal of four (4) 42 diameter knife gate valves, two(2) 42 cone valves and spool pieces, and the hydraulic power unit and its appurtenances, along withremoval of all conduits, cables and other live utilities from the control room (elevation +27.5) to thevalve chamber (elevation -252.3); sealing a 42 dewatering pipe with a DIP blind flange and replacinga cone valve with a 42 DIP pipe; The Dewatering Chamber and Valve Shaft shall be sealed shut at theaccess point in the control building; installation of backflow preventer on the 42 dewatering outlet pipeinside the Construction Shaft; removal of two (2) electrical cabinets along Vincennes Road; removal ofexisting swing gate at northwest corner of the Thornton Composite Reservoir (TCR) and replacementwith new chain link fencing and posts; Repairs to rockfall netting at approximately nine (9) locationsalong the TCR north highwall access ramp; Removal of rock and sediment debris at the bubblerintake adjacent to toe of TCR north highwall; Installation of reservoir level measurement equipmentat the TCR; Work at the 30-ft diameter TCR Construction Shaft includes concrete liner repairs; andperformance of other work as specified in the Contract Documents and as shown on the Plans.

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Amendments

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Product Code: 91240

Agency Information


Issuing Agency: Metropolitan Water Reclamation District of Greater Chicago (MWRD)

State: Illinois

Agency Type: State and Local

Contact: Rick Belair

Phone: 773-256-3663

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