Emergency Storm Sewer Repair - Cavalier Court Emergency Sewer Repair at Carriage Hills – Selge Construction Co., Inc.

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S:\Public Works\Projects\Projects by Year\2021 Projects\121-013 Emergency Sewer Repair - Carriage Hills Cavalier Ct\1 - Admin\1 - BPW Documents\20210728_121-013 Emergency Sewer Repair at Cavalier & Courier Courts in Carriage Hills_Memo to BPW.doc INTER-OFFICE MEMORANDUM DEPARTMENT OF PUBLIC WORKS DIVISION OF ENGINEERING TO: Anne Fuchs, Clerk Board of Public Works FROM: Sue Ellen Doudrick, PE SUBJECT: Carriage Hills: Cavalier Court Emergency Sewer Repair DATE: July 28, 2021 On 1/14/2021 Sewer Dept received a notification of sewer back up at 52410 Cavalier Court in Carriage Hills. While inspecting the line, Sewer Dept found roots in the sewer so they used their root cutting equipment to cut thru the roots. After two entries to get thru the sewer, their equipment became stuck in the sewer. The sewer is located behind homes within a 20’ easement. Chain-link and wooden fences as well as large trees and landscaping are present in the easement. The sewer is 8” diameter and roughly 14’ deep. Other utilities exist in the easement as well. It is our understanding that the resident plans to file a claim regarding the sewer back up. Sewer Department monitored flow levels in the sewer over the weekend and was ready to install a bypass line if sewer levels rose. Due to the depth of sewer, presence of other utilities, impacts of the cold temperatures on the bypass equipment, challenging access, contractors were solicited to perform the work with assistance from our Sewer Department to come back vegetate the areas in the spring that were damaged during construction. Access is very challenging considering there is no easement that leads you directly to the location without taking out several large trees and fence. On Friday 1/15, two contractors were solicited for availability to perform the work, R&R Excavating and Selge Construction. R&R did not have equipment available to perform the work. Selge responded that they could mobilize with equipment and crews on Monday 1/18. Description of work: The Sewer Department and contractor coordinated with the resident at 52411 Courier Court who accommodated access thru their property to the work location. This access was the most desirable to avoid damaging the newly completed concrete driveway at 52398 Courier Court. On Monday 1/18, Selge mobilized and started removal of the fence on the west side of 52411 Courier Ct. which is a straight shot to the area where the cutter got stuck as a means of access. Then the contractors tree clearing and trimming branches on a descent size tree which sits on the 52433 Cavalier Ct. property. An excavator was brought in to perform the 15’ dig. Shoring boxes were delivered and excavation and removal of the sewer segment where the cutter was stuck. Cutter was successfully removed. The sewer was reconnected and backfilled and compaction ensued. Due to the soils being so soft in these backyards, sand was brought in to finish the backfill. The impacted yards were regraded and reseeded by Sewer Department in Spring 2021. Selge completed work by 1/21/21.