A long-planned project is becoming a concrete reality — or at least an asphalt reality — as the first segment of new roadway in between Tualatin, Sherwood and Wilsonville opens to the public next week.
Washington County Department of Land Use & Transportation officials said Basalt Creek Parkway will open to traffic between Tonquin and Grahams Ferry roads on Monday morning, Aug. 14. The parkway curves south of its intersection with Tonquin Road to run east-west, with Tonquin Road paralleling it to the north and Clay Street paralleling it to the south.
When Basalt Creek Parkway opens, Tonquin Road will close between its new intersection with the parkway and where it meets Grahams Ferry Road to the east. Basalt Creek Parkway will serve as an alternate route while Tonquin Road is closed, likely until sometime in April, according to project manager Renus Kelfkens.
Kelfkens and Melissa De Lyser, a spokeswoman for the Department of Land Use & Transportation, said they are glad to have the first piece of the new and upgraded road network in the area opening to the public.
Kelfkens said Basalt Creek Parkway will be striped for now as a two-lane roadway, although a bridge over the railroad tracks is wide enough to eventually accommodate five lanes — two for travel in either direction and then a center turn lane. The parkway will likely be expanded when development begins in the area.
Right now, the Basalt Creek area is mostly a mishmash of quarries, farms, fields, and a few corrugated-iron buildings here and there. Tualatin and Wilsonville have plans to annex the area and eventually redevelop it with a mixture of housing, manufacturing and high-tech businesses, although a joint planning process has stalled due to disagreements over what to do with a piece of land east of Grahams Ferry Road.
The Basalt Creek Parkway construction itself is part of a larger county road project that will also see 124th Avenue extended south from Tualatin-Sherwood Road; it will curve to the east where it meets Tonquin Road and become Basalt Creek Parkway. Sections of Tonquin and Grahams Ferry roads will also be expanded to three lanes; they currently are two-lane roads, one travel lane in either direction with no center turn lane.
While the extension of 124th Avenue was originally planned to open to traffic this fall, Kelfkens said it was pushed back to an expected spring opening, as the laying of water pipes as part of a joint infrastructure project by the Tualatin Valley Water District and the City of Hillsboro to tap the Willamette River as a drinking water source is being done in conjunction with the roadwork.
"It depended on how (the contractor) wanted to stage the work with the road construction and the pipeline. We gave them that flexibility," Kelfkens said. "The only thing that had to be done first was get Basalt Creek open as a detour for Tonquin."
The segment of roadway opening to traffic Monday is about seven-tenths of a mile long, according to Kelfkens.
The county plans to further extend the new Basalt Creek Parkway east to Boones Ferry Road. That second phase has yet to be designed, but Kelfkens said he hopes to see construction begin by 2020.
Once the entire project is complete, interlinking segments of Tualatin-Sherwood Road, 124th Avenue, Basalt Creek Parkway and Boones Ferry Road will form a regional freight route, according to De Lyser and Kelfkens.
Ray Pitz contributed to this report.
Editor's note: This story has been updated with photographs of the road under construction.
By Mark Miller
Assistant Editor, The Times
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