Title
Ratify Change Order No. 1 to Bid No. 2020-012, Kaufman County Large Diameter Transmission Water Main Project, with S.J. Louis Construction of Texas, LTD, for additional services in the amount of $97,575.00.
Body
The City Council approved Bid No. 2020-012, Kaufman County Large Diameter Transmission Water Main Project, with S.J. Louis Construction of Texas, LTD, on October 19, 2020, in the amount of $10,192,834.35.
This is the first Change Order for the project and is a result of a utility conflict encountered crossing Interstate Highway 20. During the course of drilling the tunnel liner, a concrete mass was encountered 97.5 linear feet into the utility tunnel. It was determined to be a series of three, 6-foot x 6-foot concrete box culverts as part of the highway’s drainage system.
Plans were revised and modified permits from Texas Department of Transportation (TxDOT) were obtained for the utility tunnel that would safely allow the water transmission main to cross the TxDOT culvert.
Activities covered by Change Order No. 1 include:
• 50-inch tunnel liner plate by other than open cut (97.5 linear feet) - $77,220.00. This additional amount was needed to pay the contractor for the tunneling already completed before the culvert was encountered and to pay to have a new tunnel bored for the revised location.
• Abandon tunnel liner plate in place - $20,355.00. Before a new tunnel could be attempted, the old tunnel needed to be filled with grout and abandoned in place.
Financial Implications
The design engineer has taken responsibility for the conflict and has compensated the City in the amount of $97,575.00, the full amount of this change order. No City funds will be used for this change order.
Recommended/Desired Action
Staff recommends approval of the ratification of Change Order No. 1.
Attachment(s)
Change Order Supporting Documents
Drafter
Justin D. Stoker, P.E., CFM
Head of Department
Curt J. Cassidy, P.E., CFM