What is this Project?

This project increases system capacity to deliver high-quality drinking water from the Clackamas River to the communities of Lake Oswego and Tigard. Together these two communities can secure long-term access to clean, safe water for less than it would cost them to do it alone. Learn more...

Project News

Friday - August 22, 2014

B Avenue Stormwater System Construction Update

This week, construction began for the much needed new stormwater system upgrade on B Avenue at State Street. During construction, B Ave. is closed to traffic between State and 1st St.

Change in work hours

Support of the business community is a high priority for the project. To maximize productivity and complete construction of the stormwater system upgrade in advance of the 2014 holiday season, construction hours are being modified on B Ave. Once crews work through the first block of B Ave., west of 1st Street, work hours will change (from 9 a.m. to 4 p.m.) to 7 a.m. to 6 p.m., Monday to Friday.

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Thursday - August 21, 2014

West Linn Pipeline Construction Update: Horizontal Directional Drilling site (end of Mapleton Dr.)

The solids separation process separates material extracted during drilling. Gravel and rock is filtered and hauled off-site. Drilling fluid is recycled and reused during the HDD process.

A milestone was reached last week, with the successful completion of the pilot hole! Drilling has been ongoing for a few weeks from either side of the river, with both drills meeting in the middle to complete the pilot hole.

Crews have now started the process of upsizing the hole to 36”. More passes will be made with larger drill bits (or reamers) over the next few months until the hole is large enough for the pipe to be pulled through.

During drilling work, neighbors may hear noise from the drill rig and an increase in truck traffic. Work hours are 7 a.m. - 7 p.m. Monday through Friday, and Saturdays from 9 a.m. - 5 p.m. No work will occur over the Labor Day weekend, from Saturday, August 30 – Monday, September 1.

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Friday - August 15, 2014

Water Treatment Plant Construction Update

A large concrete pour occurred this week for the Chemical Building slabs

Over the last week, auger cast piles were drilled for the finished water pump station and concrete was poured for the chemical and electrical building slabs. Water testing of the solids storage tank also continued. Once the water test is complete and the coatings applied, the area around the solids storage tank will be backfilled.

Late next week, installation of the secondary power feed for the plant is expected to begin between the Kenthorpe Way plant entrance and the center of the site. This includes excavating, setting new vaults and an electrical meter slab. Neighbors close to the site on Kenthorpe Way may experience an increase in noise or potential vibration during the excavation.

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Thursday - August 14, 2014

First of two construction projects set to begin Monday on B Avenue

Written by Saundra Sorenson, Lake Oswego Review

In the news...

Businesses will remain open on B Avenue even as construction begins next week on the first of two separate water projects, the Lake Oswego-Tigard Partnership has announced.

The first project, a stormwater system upgrade, is set to begin Monday and is slated to take three to four months. Construction work will take place on weekdays from 9 a.m. to 4 p.m., in compliance with city-approved construction hours — much to the relief of the partnership and of B Avenue businesses, said the partnership's communications director, Jane Heisler.

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Thursday - August 14, 2014

Waluga Reservoir 2 (WR2) Construction Update

Pouring concrete for the first half of WR2 foundation

WR2 foundation is 50% complete!

Crews successfully completed a large concrete pour for the first half of the new reservoir foundation last week. This week, crews have been monitoring the 6” slab to ensure proper curing of the concrete. The second half of the foundation is scheduled to be poured tomorrow (Friday, August 15).

Neighbors can expect to see 15-20 concrete trucks traveling to and from the site and hear noise from a concrete pump truck, from 7:00 am. The concrete pour is expected to take approximately 4-6 hours. Flaggers will guide trucks in and out of the site, so please approach the Carman Road curves cautiously.

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