Tuesday - September 13, 2016

Concrete pours underway for the ozone system

Concrete slabs are poured in a checkerboard pattern for the ozone generator building foundation

Work continues on the Mapleton Drive and Kenthorpe Way sidewalks and swales

Water Treatment Plant Construction Update

Information about onsite work is outlined below. Please note, schedules are subject to change.

Ozone system – north of site

Structural work is progressing well for the two remaining ozone structures. Concrete pours are underway for the ozone generator building slabs, along with placing rebar, under-slab plumbing and electrical conduit for the ozone contactor building. Next week, the first concrete slab pour for the ozone contactor building will take place. In late September, concrete blocks will be installed for the walls of the ozone generator building.

Over the coming months, concrete pours will continue about twice a week. During pours, neighbors will notice an increase in concrete truck traffic on Mapleton Drive and Kenthorpe Way, noise and potential vibration, depending on locations.

The contractor is sandblasting surfaces of the newly poured concrete to roughen the construction joints before an adjacent slab, wall or deck is poured. Neighbors close to the site will hear intermittent noise during sandblasting, which occurs within a few days of a concrete pour.

Site improvements and hardscaping

Hardscaping and site improvements are ongoing across the site. Work continues on the Mapleton Drive and Kenthorpe Way sidewalks and swales, located along the plant frontages. Site improvements, stone walls, sidewalks and hardscaping work includes digging and preparing the site, placement of materials, forming, compacting and pouring concrete and saw-cutting stone. During this work, neighbors close to the site should expect an increase in noise and vibration from equipment.

Neighborhood construction meetings – next meeting September 20

Meetings are held once a month at the Robinwood Station, 3706 Cedaroak Drive, West Linn, on the third Tuesday of the month at 6 p.m. The next neighborhood construction meeting will be held on Tuesday, September 20 at 6 p.m. Please attend to stay up-to-date on construction progress in West Linn and ask the project team questions.

Completion date

Construction at the plant is expected to be complete in spring 2017 – this includes all landscaping and site work.

Work hours

Work hours are 7 a.m. to 7 p.m., Monday to Friday, and 9 a.m. to 5 p.m. on Saturday.

WTP construction tours

The next tour will be held on Thursday, September 22 at 10 a.m. Tours are held every two months on the fourth Thursday. Advance registration is required and space is limited. Please contact us and indicate in the subject line you would like to attend the next tour, along with your contact information.

Site plan and glossary

Please refer to the site plan for locations of each structure or our glossary of terms for construction and operation of the WTP.

For more information, please contact us or attend a neighborhood construction meeting.