Title
Consider/Discuss/Act on a Resolution Authorizing the City Manager to Execute a Supplemental Agreement with Halff Associates, Inc. for Professional Engineering Design Services for the Silverado Trail Lanes 3 & 4 Project
Summary
COUNCIL GOAL: Operational Excellence
(2.1: Balance available resources to accommodate the growth and maintenance needs of the city)
MEETING DATE: April 07, 2026
DEPARTMENT: Development Services / Engineering
CONTACT: Tracy Lund, P.E., Assistant Director of Engineering
Manjeeta Sitaula, P.E., CIP Engineer
RECOMMENDED CITY COUNCIL ACTION:
* Approval of Resolution.
ITEM SUMMARY:
* This Resolution authorizes a supplemental agreement with Halff Associates, Inc. to provide additional professional engineering services for the design of the Silverado Trail Lanes 3 & 4 Project (ST2013) for an increase in the not to exceed from $900,000 to a total aggregate contract amount, inclusive of any additional supplemental agreements, not to exceed $950,000.
BACKGROUND INFORMATION:
* Halff Associates, Inc. is currently under contract with the City for design services related to the Silverado Trail Lanes 3 & 4 Project (Resolution Number 2024-05-083R). As design on the project has progressed, the following additional services will be required which were not included in Halff Associates, Inc.'s original contract:
o Submit a Conditional Letter of Map Revision (CLOMR) along Rowlett Creek to FEMA to revise the floodplain in the project area
* Design of the project began in May 2024 and is expected to be completed by September 2026.
* Halff Associates, Inc. submitted a response to RFQ 24-46RFQ for On-Call Roadway Professional Services. They were one of fourteen firms shortlisted by City Council on September 17, 2024. Resolution Number 2024-09-158(R).
* Halff Associates, Inc. submitted a proposal for $56,875 for these additional services ($921,603 aggregate contract total), which has been reviewed by staff and exceeds the previously authorized n...
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