CITY COUNCIL AGENDA COMMUNICATION
|AGENDA DATE:||March 12, 2019|
Authorize the City Manager to Execute a Change Order with Central North Construction, LLC in the Amount of $62,376.25 for the Median Improvements Project
Chris Flanigan, Director of Engineering
|PREVIOUS COUNCIL ACTION:|
On December 13, 2016, City Council authorized the City Manager to execute a Professional Service Contract with Lee Engineering, Inc. in the amount of $150,060 for the Design of the 2017 Median Improvement Project
On March 27, 2018, City Council awarded bid and authorized the City Manager to execute a contract with Central North Construction, LLC in the amount of $2,190,802.73 for the Median Improvements Project
Authorize the City Manager to execute a change order with Central North Construction, LLC in the amount of $62,376.25 for the Median Improvements Project
The current Allen Land Development Code requires a developer of vacant property, adjacent to a median-divided roadway, to construct median improvements (landscaping, irrigation, and lighting) with the development of their property. Given the segmented nature of land development, the practice has been for the developer to instead pay a fee to the City for use in future installation of median landscaping, irrigation, and street lighting as a City-managed capital improvement project. City Staff had identified locations to install lighting and/or landscape median improvements and the project began April 2018. (See attached map for project scope and updates.)
All landscaping installation has been completed. For the locations below, the irrigation is currently being controlled manually by turning the irrigation valves since power has not been established.
Irrigation (in medians)
Allen Heights Drive (Bethany Drive to Bolin Road)
Junction Drive (Watters Road to Raintree Circle)
Raintree Circle (Watters Road to Exchange Parkway)
Bossy Boots Drive (Watters Road to Exchange Parkway)
To establish electric service for the current configuration of the irrigation controllers, the charge from Oncor Electric is approximately $90,000 for equipment they need to add. Engineering and Parks staff worked with the contractor to provide an alternative solution at a cost of $62,376. This solution requires re-work and adjustment to existing conduits and circuitry, but it would save over $27,000 by eliminating the need for new Oncor equipment. Attached is an itemization of this work.
Completion of the entire project is pending these changes and electric company work (Oncor and CoServ) to energize the lines. The estimated timeline for completion of the entire project is Spring 2019.
Funding for this project already exists in the capital project budget. Some of the previous change orders included expanding the project to add lighting on additional streets (Stockton and Curtis) as well as repairing damage that was found to existing street light services.
||Repair existing damaged electrical service and connection for Watters & Bethany street lights
|| $ 36,499.96
||Add street lights on Stockton and Curtis; Miscellaneous street repairs and field adjustments
|| $ 357,047.68
||Curb repair, field adjustments, CoServ service location modifications, and repair existing damaged electrical service
|| $ 38,624.90
||Oncor service location modifications for irrigation controllers (subject change order)
|| $ 62,376.25
|| $ 2,685,351.52
Staff recommends that Council authorize the City Manager to execute a change order with Central North Construction, LLC in the amount of $62,376.25 for the Median Improvements Project.
I make a motion to authorize the City Manager to execute a change order with Central North Construction, LLC in the amount of $62,376.25 for the Median Improvements Project.