City of Santa Clarita, Overlay and Slurry Seal Program

Twining has held the Annual Overlay and Slurry Seal contract with the City for multiple fiscal years, putting Twining in a unique position to continue to seamlessly provide these services to the City. The City knows our staff and Twining is intimately familiar with the City’s process, billing procedures, and project management staff.
Twining was contracted by the City of Santa Clarita to perform construction materials testing and inspection services for the annual overlay and slurry seal program. Twining performed construction materials testing and inspection at various project sites and the batch plant. Our firm performed mix design verification and laboratory testing.

Twining also assisted the City in performing slurry seal placement inspection and testing. During plant inspection services for this project, Twining provided asphalt binder plant inspection as well and identified viscosity and blending issues that the supplier was experiencing. Through this proactive inspection approach, not a single out of compliance load of rubberized asphalt concrete was shipped to the project.

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