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Council approves $276,500 design contract for 2026 pavement preservation program
Summary
The City Council authorized a professional-services agreement with Gray & Osborne Inc. for pavement-preservation design work tied to a north-end street grouping, accepting a $276,500 consultant fee and confirming a 2026 construction schedule.
The Mill Creek City Council on July 8 adopted a resolution authorizing the city manager to sign a professional-services agreement with Gray & Osborne Inc. for pavement-preservation design work not to exceed $276,500, inclusive of taxes.
Public-works staff presented the Pavement Preservation program as an ongoing maintenance strategy that uses the Pavement Condition Index (PCI) to match treatment types to street condition. Presenter Robert Bean said, "When a roadway is above 85, it's considered excellent and not to do anything. When it's 70 to 84, it's preventative maintenance." Streets with PCI in the 70'to-78 range were identified in the north end for treatments that fit the budget, staff said.
Staff described two primary treatments for the targeted PCI range: slurry seal (an economical surface maintenance treatment that extends pavement life and provides a protective wearing course) and grind-and-overlay (a deeper resurfacing that requires milling and repaving and costs materially more). Staff said slurry seal typically extends life roughly 5 to 8 years; in some cases a fog seal or crack sealing can follow to extend life further.
The council approved a design schedule presented by staff: notice to proceed to the designer with design work as early as July 14, 30/60/90-percent submittals in fall/winter, advertisement in January and construction to begin in April with completion expected by October (striping to follow after curing). Staff reported the pavement-preservation program budget for the year would be approximately $2.5 million after shifting some funds from 2025 to 2026.
Council discussion reflected concerns that past slurry and chip-seal work had damaged public confidence; the mayor urged staff to show cost comparisons in dollars to the public. Staff said it had revised contract specifications and scheduling windows (July 5 to August 30) to improve curing conditions and outcomes.
A motion to authorize the city manager to execute the Gray & Osborne contract for the $276,500 amount passed 6-0.
