Title
Consider a resolution authorizing the Mayor to execute Quantity Adjustment/Change Order No. 2 with Austin Underground, Inc. for the Lake Creek 2 & Lake Creek 3 Wastewater Line Upgrade Project.
Body
The Lake Creek 2 and Lake Creek 3 wastewater lines are part of a regional wastewater system, which are owned by the City of Round Rock (68.8%) and City of Austin (31.2%). This project continues the City's efforts to provide adequate wastewater service capacity to the developing Southwest area of Round Rock which has an estimated build-out capacity flow of 18.4 million gallons per day. The project consist of approximately 6,200 linear feet of 36-inch wastewater line beginning east of Lake Creek Park and extending westward along Lake Creek across Mays Street. The cost of this project, including engineering and legal services, will be shared with the City of Austin (31.2%).
On June 25, 2015, six bids were submitted and the lowest bid in the amount of $2,519,182 was submitted by Austin Underground. This amount was below the engineer's estimate of $2,700,000. The City Council approved a contract with Austin Underground on August 13, 2015.
Fiberglass manholes were included as an alternate bid for this project; however the alternate bid was not selected as part of the awarded conract due to cost. After reviewing O&M cost associated with fiberglass manholes versus concrete manholes, it was determined that fiberglass manholes require less maintenance which saves on future rehabilitation cost. The contractor showed additional interest in using fiberglass manholes for this project; therefore, the City and Austin Underground negotiated the cost for fiberglass manholes that were shown in the alternate bid. The result is a net increase cost of $80,000 to the existing contract.
Quantity Adjustment/Change Order No. 2 is required to adjust final bid item quantities and add additional items that were not part of the original scope of services. Quantity Adjustment No. 2 is...
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