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The Hillsboro Hops have a new home, and it is unlike anything the Portland metro area has seen in three decades.
The 229,000-square-foot ballpark at 4450 N.E. Century Blvd. reached temporary certificate of occupancy in December 2025, delivering a $150 million venue built to Major League Baseball High-A facility standards in just 16 months of construction. The stadium seats 6,000 for baseball and up to 7,000 for concerts and major events, and is designed to host more than 300 events annually.
鈥淭his is the first new professional sports facility built in our region in more than 30 years,鈥� noted K.L. Wombacher, president and general manager of the Hillsboro Hops, in the Top Projects nomination form. 鈥淚t鈥檚 a year-round community gathering place, a living room for the region, that will be active 365 days a year.鈥�
The project was delivered by general contractor Mortenson under a Progressive Design-Build model alongside architects CannonDesign and Populous. That framework proved critical when the team pivoted mid-project from renovating the existing Ron Tonkin Field to a full ground-up build after analysis showed renovation would severely limit scope and long-term value. The pivot required rapid redesign and procurement realignment without delaying the MLB-mandated schedule.
Among the project鈥檚 technological distinctions, the playing field uses Pivot Turf, an infill-free synthetic surface making its first appearance at professional scale. Unlike conventional systems, it requires no rubber or sand infill, reducing maintenance, preventing material migration, and lowering environmental impact. The venue also features a next-generation LED video board, integrated bowl audio, robust structured cabling, and broadcast-ready infrastructure treated as a critical path item from the outset.
Funding combined $112 million in private investment with public contributions from the City of Hillsboro ($18 million), the Oregon Legislature ($15 million), Washington County ($8 million), and Explore Tualatin Valley ($2 million).
On safety, Mortenson implemented a positive recognition culture in which craft workers were rewarded 鈥� through a prize program 鈥� for raising hazard concerns. A peer-nominated 鈥淥ne Voice鈥� program brought craft workers into monthly meetings with senior project leadership to discuss safety improvements and drive accountability.
The project carried a 20 percent small business participation goal and achieved 13 percent participation by certified firms, with more than 98 percent of work performed by local contractors. Mortenson also executed a Community Benefits Agreement with regional building trades covering apprenticeship utilization and workforce inclusion.
Energy-efficient systems were engineered for year-round, variable-load operation, and a Transition to Sustainable Operations framework was adopted to guide long-term facility management.