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The roadway, which includes 105th Avenue, Blake Street and 108th Avenue, officially shut down Monday.

COURTESY PHOTO: CITY OF TUALATIN - Heres a look at the planned closures along Garden Corner Curves during major construction, which is expected to last until October.After years of planning, major construction and roadwork on Tualatin's $4 million Garden Corner Curves project kicked off Monday, June 28.

That's when the corridor — which includes Southwest 105th Avenue, Southwest Blake Street and Southwest 108th Avenue — officially shut down. It will likely reopen in October.

"We'll be closing the road from Industrial Way to Ibach Street," said Mike McCarthy, the city's principal transportation engineer. "Local traffic will be able to get through it from Industrial Way down to Polina Street and then also from Ibach up to the (Garden Corner Nursery)."

Detour streets include Avery Street, Boones Ferry Road and Ibach Street. Garden Corner Nursery will stay open throughout the entire construction project accessed via 108th Avenue from Ibach Street, said McCarthy.

The narrow roadway, which has sight-distance safety issues and limited room for bicyclists and pedestrians, sees more than 3,000 cars pass along it daily.

After they close the road, McCarthy said workesr will remove most of the existing asphalt — including some of the road area down by Hedges Creek. In mid-July, a 15-foot-wide and 5-foot-high concrete box culvert will be installed, to help the creek flow through.

"It's quite a bit bigger than the existing culvert to prevent the creek from flowing over the road," McCarthy said.COURTESY PHOTO: CITY OF TUALATIN - Earlier this year, work crews worked on pipe installations along the Garden Corner Curves.

Plans are to reuse as much asphalt from the roadway as possible.

The new road will contain 10-foot-wide vehicle lanes, similar to the current width of the roadway.

"It's intentionally fairly narrow to try to keep vehicle speeds down," said McCarthy.

Also included will be a 12-foot-wide multi-use path designed for pedestrians and cyclists on the east side of the roadway.

A new sewer line is planned for installation on top of the culvert and will run along the length of the road. Also, McCarthy said PGE will be placing new underground power lines along the road and also on top of the culvert, which will replace overhead lines. New communication lines will be added as well.

A new stormwater treatment pond will be built next to Hedges Creek to collect stormwater, which will use pond plants to clean it before being released back into Hedges Creek and then draining into the Tualatin River. Some retaining walls along the road also are planned as are driver speed feedback signs.

"I think for the fall, we're looking for this to be a wonderful project for the community," McCarthy said, about one of the bigger project included in the bond.

Funding for the project comes from come from a $20 million bond passed by Tualatin voters in 2018 and administered through Tualatin Moving Forward, a local transportation improvement program.PMG FILE PHOTO - The long-awaited Garden Corner Curves will be repaved with other renovations planned as well.


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