CHIEF PROCUREMENT OFFICER AUTHORITY PROCUREMENT AWARDS
ACTION REQUESTED:
title
Approve the award of Change Order #1 of Contract 21-141, Julian Street Improvements to Copenhaver Construction for an amount not to exceed $6,910 and a total award of $3,120,097.98
body
DEPARTMENT: Transportation, Engineering and Development
SUBMITTED BY: William J. Novack, Director
BACKGROUND:
City Council awarded Contract 21-141 to Copenhaver Construction on May 4, 2021 with a completion date of October 1, 2021. The purpose of this contract is to bring Julian Street up to city collector street standards from Gartner Road to Prairie Avenue. This includes adding additional storm sewers to improve drainage, extending watermain and sanitary sewers, improving pedestrian connectivity by adding sidewalks, installing street lights, installing a box culvert, and installing curb and gutters. At the north end of the project, between Prairie Avenue and Porter, a 36-inch storm sewer will be installed to address flooding issues.
DISCUSSION:
This change order is requested to add the necessary pay items to the project.
The storm sewer improvement includes installation of Manhole #100 which originally required a 4' diameter Type A manhole structure. After a field review, the Contractor determined that it was not possible to install a 4' diameter Type A manhole structure at the specified location due to multiple pipes of varying sizes connecting to it. A re-evaluation of the plans determined that a 5' diameter Type A manhole structure could accommodate all the incoming pipes. Further, the storm sewer improvement includes the installation of Catchbasins #120 and #130 which originally required 4' diameter Type A catchbasins. After a field review, the Contractor determined that it was not possible to install a 4' diameter Type A catchbasin at the specified locations due to the size of the incoming and outgoing 36-inch diameter pipes. A re-evaluation of the plans determined that a 5' diameter Ty...
Click here for full text