Water Pipeline
As part of the project, a new, larger water pipeline was constructed to replace the aging and undersized 45 year old pipeline, which is the backbone of the water system. The new pipeline is designed to provide over 75 years of continuous service. Water collected from the Clackamas River travels through approximately 10.5 miles of large diameter transmission pipe from Gladstone, under the Willamette River, to the water treatment plant in West Linn, and then onto reservoirs and pump stations through Lake Oswego to Tigard.
The new, large-diameter water pipeline was constructed from steel with double welded joints to provide added strength. This improved design is based on the performance of similar large pipelines that survived earthquakes in Japan.
Much of the steel pipe was assembled right here in Oregon at a local company, watch this video to learn more.
Construction
It took over two years to construct the pipeline from Gladstone to Tigard and three different contractors. Pipe was installed under the roadway from the river intake pump station, through Gladstone, across 99E and through Meldrum Bar Park. A 3,900 foot segment of 36-inch pipe was tunneled under the Willamette River, emerging at the end of Mapleton Drive, just north of Mary S. Young State Park. From there, a new pipeline travels up Mapleton Drive to the Water Treatment Plant. This section of pipeline carries raw (untreated) water for treatment and disinfection at the plant. An emergency intertie provides drinking water from the plant to the West Linn community in an emergency.
The finished water pipe is the portion of pipe that carries treated (clean) drinking water from the Water Treatment Plant to customers in Lake Oswego and Tigard. The newly installed pipeline runs from the treatment plant, north along Highway 43, through Lake Oswego to the Waluga Reservoirs near Waluga Park - almost eight miles of new finished water pipe. The new pipe provides increased system reliability because the pipeline is stronger and able to withstand a large earthquake. The Partnership also installed a new, 24-inch diameter pipe under I-5 and along Bonita Road to the new pump station on Milton Court in Tigard. This new pipeline connects the pump station to existing pipelines in Tigard.
More information:
Archive of Construction Updates
Paving & Traffic Notice: Oswego Village & State Street near Starbucks Wed. 4/5/17
Tuesday - April 4, 2017
Partnership Wins 2016 American Cultural Resources Association Industry Award
Wednesday - September 28, 2016
Restoration activities taking place in Lake Oswego
Thursday - June 16, 2016
Lake Oswego Pipeline Construction Update Night Work
Wednesday - May 25, 2016
Paving Alert – McVey Avenue
Monday - May 23, 2016
McVey Avenue gets a facelift
Friday - May 6, 2016
Final paving set to take place
Friday - April 15, 2016
Site improvement preparations begin at the plant
Thursday - April 14, 2016
Final restoration wrapping up on Mapleton Drive
Thursday - April 7, 2016
ADA ramp work begins on McVey Avenue and State Street
Tuesday - April 5, 2016
New filters move into testing and disinfecting stage at the WTP
Friday - March 25, 2016
10 ½ miles of pipeline construction now complete for the project!
Thursday - March 17, 2016
Architectural touches progress for the new WTP administration building
Friday - March 11, 2016
Mapleton Drive pipeline complete, road open, restoration underway!
Thursday - March 3, 2016
Work resumes on McVey Avenue Pipe Bridge
Thursday - March 3, 2016
Bonita Road Pipeline Work near Fanno Creek begins March 7
Monday - February 29, 2016
Major pipe work complete on Mapleton Drive, testing and disinfecting begins!
Thursday - February 18, 2016
Restoration almost complete in George Rogers Park
Friday - February 12, 2016
Major pipeline work on Mapleton Drive almost complete
Friday - February 5, 2016
McVey Avenue construction focuses on pipe bridge over Oswego Creek
Friday - January 29, 2016
Final remaining sticks of pipe to be installed on Mapleton Drive next week
Friday - January 29, 2016
Tigard Pipeline Installation Complete, Bonita Pump Station wrapping up!
Friday - January 22, 2016
450 feet of pipe left to install on Mapleton Drive!
Friday - January 22, 2016
Crews switch to daytime construction on McVey Avenue
Thursday - January 14, 2016
McVey Avenue night work almost done!
Friday - January 8, 2016
Crews back in action installing pipe on Mapleton Drive
Friday - January 8, 2016
Mapleton Drive pipeline construction resumes Jan. 4
Wednesday - December 30, 2015
Raw water pipe in service next week!
Friday - December 18, 2015
McVey Avenue pipleline construction progressing well
Friday - December 18, 2015
Work at Trillium Creek resumes next week
Friday - December 11, 2015
Night construction begins at Erickson Street
Thursday - December 10, 2015
After-hours emergency work tonight on Mapleton Drive - sewer line break
Friday - December 4, 2015
Crews set to begin pushing the pipe through the Trillium Creek tunnel on Mapleton Drive
Friday - December 4, 2015
Night construction continues on McVey Avenue
Thursday - December 3, 2015
State Street crossing underway
Friday - November 20, 2015
Small sewer relocation set to begin Nov. 30 on Mapleton Drive
Friday - November 20, 2015
Holiday Work Hours in West Linn
Thursday - November 19, 2015
Walls continue to take shape for new structures at the treatment plant
Monday - November 16, 2015
Night Construction Begins on State Street
Friday - November 13, 2015
Lake Oswego pipeline construction moves down Ladd Street and into George Rogers Park
Friday - November 6, 2015
Half of the water pipe installed on Mapleton Drive
Friday - November 6, 2015
Partnership Celebrates River Intake and Gladstone Pipeline Milestones at Special Event
Tuesday - November 3, 2015
Crews wrapping up construction on Bonita Road
Friday - October 30, 2015
The Man from Kosh-huk-shix
Monday - October 26, 2015
Finished water pipe installation begins early November on Mapleton Drive
Friday - October 23, 2015
Thank You, Gladstone!
Monday - October 19, 2015
Bonita Pipeline Almost Complete, Enters Testing Phase
Friday - October 16, 2015
Mapleton Drive raw water pipe now installed to the plant
Friday - October 16, 2015
Pipeline construction progresses on Durham Street
Friday - October 9, 2015
Mapleton Drive pipeline installation progresses towards water treatment plant
Friday - October 2, 2015
Bonita pipeline construction moves closer towards completion
Tuesday - September 29, 2015
Old Town Neighborhood pipeline construction begins in early October
Friday - September 25, 2015
Large excavation complete for the WTP’s current construction phase
Thursday - September 24, 2015
All pipe now installed in Gladstone!
Friday - September 18, 2015
HDD Pullback video wins 3CMA Savvy Award
Friday - September 18, 2015
Mayors Tour WTP in West Linn and Pump Station in Gladstone
Thursday - September 10, 2015
Road closure and detour route begins for Mapleton Drive
Wednesday - September 9, 2015
Oswego Village Shopping Center pipeline work begins soon
Wednesday - September 9, 2015
Pipeline work resumes near Bonita Road
Tuesday - September 8, 2015
Green design features reduce carbon footprint of Lake Oswego and Tigard’s water facilities
Tuesday - September 8, 2015
RIPS reaches a significant milestone!
Friday - September 4, 2015
Built to Last: a new, resilient water system
Thursday - September 3, 2015
New filters taking shape at the treatment plant
Monday - August 31, 2015
Foothills pipeline construction underway
Friday - August 28, 2015
Mapleton Drive pipeline construction underway
Friday - August 21, 2015
Bonita Pump Station taking final steps towards completion
Friday - August 21, 2015
Night work begins on McLoughlin Boulevard (Hwy. 99E)
Monday - August 17, 2015
Next stage of excavation to begin at the WTP
Friday - August 14, 2015
Special Construction Reminder: Lake Oswego
Friday - August 14, 2015
48-hour weekend construction on State Street begins Saturday, Aug. 15
Tuesday - August 11, 2015
Mapleton Drive pipeline construction begins week of Aug. 17
Thursday - August 6, 2015
Pipeline Work at Railroad Crossing on State Street Requires 48-Hour Weekend Construction Beginning Aug. 15
Thursday - August 6, 2015
48-hour weekend railroad crossing construction planned for a weekend in mid-late August
Friday - July 31, 2015
Concrete pours begin for the new WTP filters and administration building
Thursday - July 30, 2015
Pipeline construction moves off Bonita Road, crews transition to daytime work
Friday - July 24, 2015
Hwy 43 paving complete, final striping to begin
Friday - July 24, 2015
Pipe work continues across River Road
Friday - July 24, 2015
State Street construction begins Sunday, July 19
Friday - July 17, 2015
Final paving almost complete on W. Clackamas, Bellevue & Exeter Streets
Monday - July 13, 2015
Final landscaping and fencing to be installed at the new pump station
Friday - July 10, 2015
Trillium Creek tunneling complete
Thursday - July 9, 2015
Highway 43 paving underway
Thursday - July 2, 2015
Preparing to pour concrete for the new WTP administration building
Thursday - July 2, 2015
Crews finish tunneling under railroad tracks and 72nd Avenue crossing on Bonita Road
Friday - June 26, 2015
Hwy 43 night paving starts June 28 in West Linn!
Friday - June 26, 2015
Demolition starts July 1 on the existing river intake
Thursday - June 25, 2015
Final paving begins in downtown Lake Oswego and Highway 43
Friday - June 19, 2015
Auger cast pile drilling begins for new WTP filters
Thursday - June 18, 2015
Tunneling under the railroad tracks on Bonita Road continues
Friday - June 12, 2015
Final paving set to begin in Gladstone
Thursday - June 11, 2015
Pipeline activities underway on Mapleton Drive
Wednesday - June 10, 2015
Paving on Highway 43, A Avenue, 9th Street and B Avenue begins this month
Friday - June 5, 2015
WTP sedimentation basin demolition now complete
Friday - June 5, 2015
Crews begin tunneling under the railroad tracks on Bonita Road
Tuesday - June 2, 2015
Crews begin boring under railroad tracks on Bonita Road next week
Friday - May 29, 2015
Waluga Reservoir 2 is now online!
Friday - May 22, 2015
Mapleton Drive Pipeline Construction: 48-hour notice
Friday - May 22, 2015
Mapleton Drive pipeline construction starts next week
Friday - May 22, 2015
B Avenue pipe installation complete!
Friday - May 22, 2015
Crews finish tunneling under I-5, plan to bore underneath railroad tracks next week
Friday - May 15, 2015
Curb installation begins on Bellevue Avenue!
Friday - May 15, 2015
Pipeline construction set to begin on Mapleton Drive in late May
Monday - May 11, 2015
Waluga Reservoir set for chlorination, fill and testing!
Friday - May 8, 2015
B Avenue pipeline construction moves closer to State Street
Friday - May 8, 2015
Pipeline installation under I-5 underway, tunnel under railroad tracks on Bonita Road up next
Friday - May 1, 2015
W. Exeter Street pipe installation progressing well
Thursday - April 30, 2015
Pipeline testing and concrete panel work continues on Highway 43
Wednesday - April 29, 2015
B Avenue construction moves into the business district
Thursday - April 23, 2015
Crews begin tunneling under I-5 in Tigard
Tuesday - April 21, 2015
Restoration of concrete panels continues on Highway 43
Friday - April 17, 2015
Preparations begin for reservoir tank and pipeline testing
Friday - April 10, 2015
Pipeline construction down B Avenue moving swiftly along
Thursday - April 9, 2015
Night construction on Bonita Road begins next week
Friday - April 3, 2015
Permanent trench patch on Highway 43 almost complete
Thursday - April 2, 2015
Pipe installation resumes on West Exeter Street
Thursday - April 2, 2015
Pipeline construction progressing onto 9th Street
Thursday - March 26, 2015
Last piece of pipe installed on Highway 43
Friday - March 20, 2015
New RIPS begins pumping water!
Thursday - March 19, 2015
Pipeline activities ramp up in Lake Oswego
Thursday - March 12, 2015
Milton Court pipeline construction continues, exploratory digging begins on Bonita Road
Monday - March 9, 2015
Tunnel boring machine arrives to site
Friday - March 6, 2015
Permanent trench patching to begin on Highway 43
Thursday - March 5, 2015
Chandler Road pipe installation begins next week
Monday - March 2, 2015
Pipe vault connecting the reservoir to Tigard’s water system almost complete
Thursday - February 26, 2015
Construction moving steadily along in West Linn
Friday - February 20, 2015
Microtunnel machine to begin boring under River Road and McLoughlin Boulevard
Thursday - February 19, 2015
Waluga Reservoir coming together inside and out
Friday - February 13, 2015
Exploratory digging begins near downtown Lake Oswego
Friday - February 13, 2015
Testing of the new pumps at the RIPS begins!
Friday - February 6, 2015
Bonita Pump Station Begins to Take Shape
Friday - February 6, 2015
More than a mile of pipe installed on Highway 43
Thursday - February 5, 2015
Lake Oswego Pipeline Construction Update
Thursday - January 29, 2015
Bonita Pump Station Construction Update
Friday - January 23, 2015
Water Treatment Plant Construction Update
Friday - January 16, 2015
Lake Oswego Pipeline Construction Update
Thursday - January 15, 2015
Bonita Pump Station Construction Update
Friday - January 9, 2015
Waluga Reservoir 2 (WR2) Construction Update
Friday - January 9, 2015
Lake Oswego Pipeline Construction Update
Friday - January 9, 2015
West Linn Pipeline Construction Update
Thursday - January 8, 2015
Water Treatment Plant Construction and Schedule Update
Tuesday - January 6, 2015
Lake Oswego Pipeline Construction Update
Tuesday - December 30, 2014
West Linn Pipeline Construction Update
Tuesday - December 23, 2014
Water Treatment Plant Construction Update
Friday - December 19, 2014
Lake Oswego Pipeline Construction Update
Friday - December 19, 2014
Lake Oswego Pipeline Construction Update
Monday - December 8, 2014
Special Bonita Pump Station and Bonita Road Construction Update
Friday - December 5, 2014
Highway 43 Pipeline Construction in West Linn - 48-hr Construction Notice
Friday - December 5, 2014
Water Treatment Plant Construction Update
Friday - November 21, 2014
Pipeline Construction Update: Lake Oswego
Thursday - November 20, 2014
West Linn Pipeline Construction Update
Friday - November 14, 2014
Bonita Pump Station Construction Update
Friday - November 14, 2014
Erickson/Laurel Streets: Pipeline Work Construction Notice
Friday - October 31, 2014
West Linn Pipeline Construction Update
Friday - October 31, 2014
Pipeline Construction Update: Lake Oswego
Thursday - October 23, 2014
Bonita Pump Station Construction Update
Friday - October 17, 2014
West Linn Pipeline Construction Update
Friday - October 17, 2014
Water Treatment Plant Construction Update
Friday - October 10, 2014
Pipeline Construction Update: Lake Oswego
Thursday - October 9, 2014
B Ave. stormwater pipeline work in 8th and 9th Street intersections
Thursday - October 2, 2014
West Linn Pipeline Construction Update
Thursday - October 2, 2014
Pipeline Construction Update: Lake Oswego
Thursday - September 25, 2014
Bonita Pump Station Construction Update
Friday - September 19, 2014
Special Pipeline Construction Update: Work in the Hallinan Heights Neighborhood
Thursday - September 18, 2014
West Linn Pipeline Construction Update
Thursday - September 18, 2014
Pipeline Construction Update: Lake Oswego
Thursday - September 11, 2014
Pipeline Construction Update: Lake Oswego
Friday - August 29, 2014
Bonita Pump Station Construction Update
Thursday - August 28, 2014
Pipeline Construction Update: Lake Oswego
Friday - August 15, 2014
Bonita Pump Station Construction Update
Thursday - August 14, 2014
B Avenue Pipeline Construction
Friday - August 8, 2014
Pipeline Construction Update: Lake Oswego
Friday - August 1, 2014
Bonita Pump Station Groundbreaking Video
Thursday - July 31, 2014
Bonita Pump Station Construction Update
Thursday - July 24, 2014
Pipeline Construction Update: Lake Oswego
Friday - July 18, 2014
Water Treatment Plant Construction Update
Friday - July 18, 2014
West Linn Pipeline Construction Update: Horizontal Directional Drilling site (end of Mapleton Dr.)
Thursday - July 10, 2014
Water Treatment Plant Construction Update
Thursday - July 3, 2014
Bonita Pump Station Construction Update
Wednesday - July 2, 2014
Pipeline Construction Update: Lake Oswego
Wednesday - July 2, 2014
West Linn Pipeline Construction Update: Horizontal Directional Drilling site (end of Mapleton Dr.)
Thursday - June 26, 2014
Lake Oswego Pipeline Construction Update
Friday - June 20, 2014
Water Treatment Plant Construction Update
Friday - June 20, 2014
West Linn Pipeline Construction Update: Horizontal Directional Drilling site (end of Mapleton Dr.)
Wednesday - June 18, 2014
West Linn Pipeline Construction Update: Horizontal Directional Drilling site (end of Mapleton Dr.)
Thursday - June 12, 2014
Bonita Pump Station Construction Update
Thursday - June 12, 2014
Pre-schoolers help Tigard officials celebrate Bonita Pump Station Construction
Wednesday - June 11, 2014
Lake Oswego Pipeline Construction Update
Friday - June 6, 2014
Water Treatment Plant Construction Update
Friday - June 6, 2014
HWY 43 - Exploratory digging and NW Natural gas relocation
Thursday - June 5, 2014
West Linn Pipeline Construction Notice: Horizontal Directional Drilling site (end of Mapleton Dr.)
Friday - May 30, 2014
Lake Oswego Pipeline Construction Update
Friday - May 23, 2014
Water Treatment Plant Construction Update
Thursday - May 22, 2014
West Linn Pipeline Construction Update: Mapleton Drive and Willamette River Crossing
Wednesday - May 21, 2014
Gladstone Pipeline and River Intake Construction Update
Thursday - May 15, 2014
Willamette River Crossing & Mapleton Drive Meet the Contractor Meeting
Tuesday - June 3, 2014
Pipeline Construction Update: Lake Oswego
Friday - May 9, 2014
Exploratory Digging Work - Hwy 43
Wednesday - May 7, 2014
Exploratory Digging Work: Laurel and Erickson Streets
Monday - April 28, 2014
River Intake Construction Update
Friday - April 25, 2014
Water Treatment Plan Construction Update
Friday - April 25, 2014
Pipeline Construction Update: Lake Oswego
Friday - April 25, 2014
Pipeline Construction Update: Mapleton Drive and Willamette River Crossing
Wednesday - April 23, 2014
Pipeline Construction Update - Lake Oswego
Friday - April 11, 2014
Water Treatment Plant Construction Update
Friday - April 11, 2014
Night Work in Lake Oswego
Monday - April 7, 2014
River Intake Construction Update
Thursday - April 3, 2014
Pipeline Construction Update: Lake Oswego
Friday - March 28, 2014
Water Treatment Plant Construction Update
Friday - March 28, 2014
Work crews in your area
Tuesday - March 25, 2014
Bids for Water Pipeline Bring Savings for Partnership
Friday - March 21, 2014
Pipeline Construction Update
Monday - March 17, 2014
River Intake Construction Update
Friday - March 14, 2014
Construction begins May 2014
Wednesday - March 5, 2014
Upper Drive water line relocation
Tuesday - March 4, 2014
River Intake Construction Update
Tuesday - March 4, 2014
Pipeline Construction Update
Friday - February 28, 2014
Durham Street
Tuesday - February 25, 2014
River Intake Construction Update
Thursday - February 20, 2014
Pipeline Construction Update
Friday - February 14, 2014
River Intake Construction Update
Friday - February 7, 2014
Pipeline Construction Update: Lake Oswego
Saturday - February 1, 2014
Twin Fir Sewer Replacement
Thursday - January 30, 2014
Pipe installation and trench paving on Quarry Road
Wednesday - January 29, 2014
Lanewood Street trench paving
Monday - January 27, 2014
Pipeline Construction Update:
Friday - January 17, 2014
Tree removal starting at the end of Mapleton Drive
Friday - January 17, 2014
River Intake Construction Update
Wednesday - January 15, 2014
Gladstone Pipeline Construction Bidding Update
Friday - January 10, 2014
Traffic Alert: Temporary Road Closure on Lanewood St from 1/13 – 1/24
Thursday - January 9, 2014
Mapleton Drive/Highway 43 Intersection Improvements
Tuesday - December 31, 2013
River Intake Construction Update
Thursday - January 2, 2014
Pipeline Construction Update: Parkhill Street, East Waluga Park and Quarry Road
Friday - December 20, 2013
Focus: Pipeline Route Changes in Lake Oswego
Tuesday - December 17, 2013
Survey Work in Downtown Lake Oswego
Thursday - December 12, 2013
River Intake Construction Update
Friday - December 6, 2013
Exploratory Digging Work: Boones Ferry Road, Lanewood St, Douglas Circle, Twin Fir Road, Upper Drive, Iron Mountain Blvd. and Chandler Road
Tuesday - December 3, 2013
Pipeline Construction Update: East Waluga Park, Quarry Road and Douglas Way
Monday - November 25, 2013
River Intake Construction Update
Thursday - November 14, 2013
Focus: River Intake Construction
Tuesday - October 29, 2013
River Intake Construction Update
Friday - October 25, 2013
"Meet the Contractor" meeting held October 17th
Monday - October 21, 2013
Water work gets going
Thursday - October 3, 2013
River Intake Pump Station Construction Update
Friday - October 4, 2013
River Intake Construction Update
Friday - September 13, 2013
Water Treatment Plant Construction Update
Friday - August 30, 2013
River Intake Construction Update
Thursday - August 29, 2013
LO launches work on river pump station
Thursday - July 25, 2013
Recent and upcoming work in Gladstone
Thursday - May 23, 2013
