Friday - June 26, 2015

Hwy 43 night paving starts June 28 in West Linn!

Crews begin boring the pipe casing under Trillium Creek.

Horizontal directional drilling site at the end of Mapleton Drive.

West Linn Pipeline Construction Update - Highway 43 and Mapleton Drive

This update includes information about the following topics. Click below for specific information on each topic:

  • Safety reminder – drive slowly and obey flagger directions
  • Highway 43 – final paving starts this Sunday!
  • Mapleton Drive – auger bore progressing well
  • Neighborhood construction meetings - next meeting July 7

Safety reminder

To maintain safety, please drive slowly in the work areas on Highway 43 and Mapleton Drive, and obey flagger directions in all active construction zones.

Highway 43 – final paving starts this Sunday!

Final paving of the lane where the pipe has been installed will begin this Sunday night, June 28, at the intersection of Highway 43 and Mapleton Drive, working north towards Lake Oswego. Crews will first grind the existing asphalt before pouring new, hot asphalt immediately after. Paving is expected to continue through mid-July, although this is weather dependent. Final striping will be placed shortly after the new pavement is installed.

Nighttime work hours on Highway 43 are 8 p.m. – 5 a.m., Sunday through Thursday. During work hours, one lane will be open at a time, in most areas, with flaggers guiding traffic in each direction. No traffic will be allowed to drive on the new asphalt until it has completely cooled. Neighbors can expect an increase in noise during paving.

Thank you for your patience during construction on Highway 43.

Mapleton Drive pipeline activities

Auger bore at Trillium Creek

The auger bore (tunneling) subcontractor has begun tunneling and placing the pipe casing under the creek, and expects to be finished mid-next week. Over the next few days, crews will excavate and install a retrieval work pit for the tunneling equipment to be removed from, once it is finished installing the pipe casing.

Neighbors can expect some noise and potential vibration during the auger bore work. Steel plates are present in the roadway after work hours, to keep the work pit secure and covered.

During the auger bore work at the creek, a single lane closure is in place with flaggers. Please expect some short-term, temporary delays to get through the work zone. Neighbors are encouraged to use Nixon Avenue to avoid traveling through the work area.

Sanitary sewer relocation

Crews are planning to start work on relocating the sanitary sewer line near 4020 Mapleton Drive in mid-July, however, schedules are subject to change. The relocation involves digging in the road and installing a new sanitary sewer line. To avoid service interruptions, the contractor will use a temporary bypass during the work.

The sewer relocation is expected to take about two weeks to complete. During this time, there will be a single lane closure with flaggers directing traffic. To maintain a single lane of traffic, the contractor will add gravel along the shoulders of the existing pavement near the sewer work to temporarily widen the road.

Please drive with caution when traveling through the active work zone and follow flaggers’ directions.

Restoration at the HDD site

Restoration work is now complete at the horizontal directional drilling site at the end of Mapleton Drive. Crews are keeping the area irrigated through the summer.

Open-cut pipeline work

Open-cut trenched pipeline work should start sometime next month, however, schedules are subjcet to change. Crews will start at the eastern end of Mapleton Drive, working toward Nixon Avenue. Once crews work past the Nixon Avenue and Mapleton Drive intersection, a detour will be in place during work hours.

Work hours and what to expect

Work hours on Mapleton Drive are Monday to Friday, 7 a.m. - 7 p.m. and Saturdays, 9 a.m. - 5 p.m. In honor of Independence Day, there will be no work on Friday, July 3 or Saturday, July 4.

Neighbors can expect to see and hear excavators, generators, loaders, saw-cutters, compressors, pipe, steel plates, gravel and dump trucks in the work area and right-of-way. During work hours, there can be an increase in noise, truck traffic and vibration, depending on neighbors’ locations.

Neighborhood construction meetings - next meeting June 16

The next neighborhood meeting will be held on at Burgerville on July 7 at 7:30 a.m., in the downstairs restaurant area. Please attend to stay up-to-date on construction progress in West Linn and ask the project team questions.

Meeting schedule:

  • The first Tuesday of the month at 7:30 a.m., at Burgerville, 18350 Willamette Drive, West Linn.
  • The third Tuesday of the month at 6 p.m., at the Robinwood Station, 3706 Cedar Oak Drive, West Linn.

For the latest information, follow @LOTWater on Twitter, drop-in to a neighborhood construction meeting,  or contact us.