Title
Irwin Creek Treatment Plant Phase 2 Project - Construction Change Order
Action
Action:
A. Approve change order #1 for $3,091,052 to Ulliman Schutte Construction, LLC for the Irwin Creek Treatment Plant Phase 2 Project, and
B. Approve contract amendment #2 for $349,348 to Hazen and Sawyer for engineering construction administration services for the Irwin Creek Treatment Plant Phase 2 Project.
Body
Staff Resource(s):
Barry Gullet, Charlotte Water
Carl Wilson, Charlotte Water
Explanation
* The Irwin Creek Wastewater Treatment Plant Project is located on Westmont Drive in West Charlotte.
* The Plant is currently undergoing extensive renovations known as the Irwin Creek Phase 2 Project. Construction will be completed in the spring of 2019.
* The plant has three existing secondary clarifiers which were constructed in 2000. Clarifiers are circular concrete tanks with metal working components and are 125 feet in diameter.
* The repair and replacement of the existing secondary clarifiers was initially planned as a future project; however, the metal and concrete deterioration rate and age of the equipment requires faster action to prevent failure.
Action A
* On January 11, 2016, City Council awarded the low bid price of $39,732,000 to Ulliman Schutte Construction, LLC.
* The bid included the addition of a new fourth secondary clarifier adjacent to the three existing clarifiers described above.
* Based on inspection results, it is recommended that replacing the mechanisms and associated work proceed as a Change Order to Ulliman Schutte's construction contract.
* The Change Order will accelerate clarifier rehabilitation.
* The Change Order price is based on existing bid price and similar recently performed work.
* The new total value of the contract is $42,823,052.
Action B
* On January 13, 2014, City Council awarded the engineering firm of Hazen and Sawyer a contract for design and construction administration services in the amount of $4,132,979.
* O...
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