Title
Professional services supplemental agreement with Halff Associates, Inc. in the amount of $91,108.50 for additional construction phase services associated with TR1904 - Historic Colored Addition Subdivision (HCA) Russell St, Caldwells Ln, Taylor St, and Lincoln Ave Infrastructure Improvements Project.
Summary
The City is considering approval of a Professional Services Supplemental Agreement (PSSA) with Halff Associates, Inc. in the amount of $91,108.50 for the TR1904 Historic Colored Addition Subdivision (HCA) Infrastructure Improvements Project to provide additional construction phase services.
The original Professional Services Agreement and prior supplemental agreements included design, coordination, and construction phase services for the project. As construction has progressed, additional services have been required to support project delivery and meet agency and City requirements.
This Supplemental Agreement includes preparation of a waterline profile for the Pecan Street Waterline to satisfy TxDOT requirements for renewal of the RULIS permit, review of contractor pay applications, staking of property corners for alley right-of-way between Taylor Street and Pecan Street, and additional construction phase coordination efforts. The scope also accounts for increased construction meeting frequency, which has expanded from once per month to biweekly meetings since August 2025, and is anticipated to continue through project completion in summer 2027.
Approving this Professional Services Supplemental Agreement ensures the project remains adequately supported during construction, maintains compliance with regulatory requirements, and continues progressing toward successful completion.
This item is supported by the Mobility Infrastructure and Connectivity pillar of the Strategic Plan.
Prior City Council Action
City Council approved the Discretionary Service Agreement (DSA) with Oncor in the amount of $498,551 for relocation of overhead utilities to un...
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