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Basic Information

Reference Number

0000267821

Issuing Organization

City of Aurora

Project Type

IFB - Invitation for Bid (Formal)

Project Number

5853A

Title

Griswold WPF Finished Water Reservoir Repairs and Clearwell Valve Replacement

Source ID

PU.AG.USA.1028.C5891301

Details

Location

United States, Colorado, Arapahoe County

Piggyback Contract

Description

Based on a comprehensive inspection and condition assessment of the 15 million gallon (MG) finished water reservoir in 2019/2020, multiple repairs and improvements were identified including the following:

Demolition of the existing wood gates, stems, and appurtenances;
Removal of corrosion and repair of concrete twin tees and concrete beams;
Removal of the existing coating on the inlet and outlet steel standpipes and associated structural platform support and re-coating;
Removal of the existing coating on the overflow pipe and vent pipe and recoating;
Replacing the 18” drain valve and appurtenances;
Installing support brackets under the twin tee stems at the north and south sides of tank where the twin tees rest on wall;
Removing the existing cathodic protection anodes from inlet and outlet standpipe and replace with new anodes;
Repair of the corrosion on the handrail around standpipe platform;
Removal of the coating that is flaking off all concrete column bases; and
Gate structure hatch replacement.

The project also includes the replacement of the four 36-inch diameter clearwell valves, which have reached the end of their useful life. The valves will be replaced with new 36-inch butterfly valves with electric actuators, which have been pre-purchased by the City. Other minor improvements will include the relocation of the chemical injection points for sodium hydroxide inside the finished water pipe located below the concrete floor of the pipe gallery.

Dates

Publication

08/19/2021 08:05 AM MDT

Question Acceptance Deadline

09/02/2021 02:00 PM MDT

Questions are submitted online

Closing DateA - Latest Addendum

09/20/2021 02:00 PM MDT

Contact Information

Nathan Jones

303-739-7343

njones@auroragov.org

Bid Submission Process

Bid Submission Type

Electronic Bid Submission

Pricing

In attached document

Bid Documents List

Item Name	Description	Mandatory	Limited to 1 file
Bid Documents	Documents defining the proposal	Yes	No
No entries