Harris & Associates was selected by the City of Kent, Washington, to provide on-site construction management services for a 1.8-mile extension of South 224th Street.
First approved in 2008, the $31-million project will result in a three-lane road connecting East Valley Highway and Benson Road—creating an alternate route between the Kent Valley and East Hill. The work involves new 430-foot long bridge with three spans over State Highway 167 at 224th Street and over Garrison Creek along South 218th Street.
The bridge will be supported by a dozen 10-foot diameter, 150-foot long drilled shafts. Approach ramps will be supported on 300 stone columns and designed with Geofoam fill to lower the surcharge load. The project will also include construction of 20,000 square feet of structural earth walls, along with the installation of approximately 2,450 tons of hot mix asphalt, 6,150 tons of crushed surfacing, 16,000 cubic yards of gravel borrow, 1,000 square yards of cement concrete sidewalk, 800 lineal feet of cement concrete curb and gutter, and traffic signal modifications.
“We’re thrilled that we can contribute to such an important project” said Sam Yaghmaie, Senior Director of construction management at Harris. “We’re working with some amazing partners, building a bridge that will greatly enhance freight mobility and quality of life within the city of Kent.”