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File #: 83221    Version: 1 Name: Declaration of Public Works Emergency for the Failure of sanitary sewer force main on Mendota Mental Institute grounds (301 Troy Drive)
Type: Miscellaneous Status: Filed
File created: 5/1/2024 In control: Engineering Division
On agenda: Final action: 5/8/2024
Enactment date: Enactment #:
Title: Declaration of Public Works Emergency for the Failure of sanitary sewer force main on Mendota Mental Institute grounds (301 Troy Drive)(District 18)
Sponsors: BOARD OF PUBLIC WORKS
...Fiscal Note
The proposed resolution funds an emergency repair to close a declared Public Works Emergency at the Mendota Mental Institute grounds. At this time, the cost of the emergency repair is unknown. Funding for repairs will be provided by the 2024 Adopted Sewer Utility Operating Budget. No additional appropriation is request at this time.
Title
Declaration of Public Works Emergency for the Failure of sanitary sewer force main on Mendota Mental Institute grounds (301 Troy Drive)(District 18)
Body
On April 29, 2024, City Engineering was notified by Capitol Underground regarding potential wastewater ponding at 301 Troy Drive, State of Wisconsin Mendota Mental Institute on the corner of private roads Memorial Drive and North Road. The Mendota Mental Institute had hired Capitol Underground to complete a private water main repair that they believed to be the source of the standing water. However, after visiting the site, Capitol Underground believed that the ponded water was wastewater and contacted Engineering. At 11:00AM Engineering Operations Crews visited the site and confirmed that ponded water was wastewater, believing the source was a leaking 10”diameter cast iron (1934) City sanitary force main.

Engineering Operations initiated use of a vactor truck to collect the surface water at 11:00 AM. Engineering Operations Crews also brought two additional vactor trucks at 1:00PM and an excavator, to attempt the force main repair. Engineering Crews had 3 vactor trucks and an excavator attempting to complete the repair and were unsuccessful finding the force main sewer pipe to complete the repair, while trying to manage unstable trench conditions. Engineering Operations Crews believed that management of the break exceeded their capabilities and Engineering reached out to the Madison Metropolitan Sewerage District(MMSD) for assistance.

MMSD provided two tanker trucks over the entire evening of April 29th and were able to handle the volume of new flow b...

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