The SR 99 / SR 120 Interchange Improvements Project enhanced one of the region’s most heavily traveled transportation corridors by improving traffic operations, reducing congestion, and increasing safety at the interchange. The project included interchange reconstruction, bridge widening, ramp improvements, roadway widening, drainage upgrades, and utility relocations to accommodate growing traffic demands and improve regional connectivity. Knight CM Group provided construction management support, resident engineering, structures inspection, and quality assurance services to help successfully deliver this complex, multi-phase transportation improvement project.
Elements: Interchange reconstruction, bridge widening, roadway widening, ramp improvements, retaining walls, drainage improvements, utility relocations, traffic signal modifications, roadway excavation, embankment construction, asphalt paving, concrete pavement, striping and signage, traffic control, construction staging, structural concrete, CIDH pile foundations, quality assurance, resident engineering, structures inspection, contract administration.
