Tetra Tech INCA prepared plans, specifications, and estimates for the construction of right-turn lanes and signal modifications for intersections within the City of Kirkland. The design included the addition of right-turn lanes, intersection improvements, stormwater treatment facilities, traffic signal modifications, curb, gutter and sidewalks, striping, and retaining walls. INCA conducted subsurface utility explorations at each signal pole foundation location to identify potential utility impacts prior to construction.