Marymoor Park is bordered by two water bodies: Lake Sammamish and the Sammamish River. JGM has been responsible for the last three master plan updates for this very popular 520-acre regional park in King County’s park system. Marymoor Regional Park is perhaps the most diverse park in King County - its rural, idyllic character contrasts with the surrounding urban and manufacturing development. The park is host to a variety of active sports facilities, but also contains one of the area’s largest undisturbed wetlands. JGM has designed and overseen the construction of over twenty-four individual projects within Marymoor Park.

Over the years, JGM has designed many other facilities at Marymoor Park including a baseball field complex, two restroom buildings, several large parking facilities, a 40’ high climbing rock, improvements to the existing velodrome, a major pedestrian trail bridge over the Sammamish River, and improvements to the historic district at the park’s core.

JGM was selected by King County Parks to design five full-size grass soccer fields in an undeveloped portion of the park. One lighted, all-weather regulation soccer field was also part of the project. The fields were all under drained, irrigated and constructed of blended sands to provide excellent drainage and extended playtime for the grass surface.

David McNeal was Principal-in-Charge and Lead Master Planner and Craig Lewis was Project Manager responsible for coordination of the work and that of the subconsultants, all permit and environmental documentation, and construction services.