Previous Entries

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Friday - February 28, 2014

Water Treatment Plant Construction Update

This week at the WTP, crews have been busy forming walls and pouring concrete for base slabs in the clearwell, placing electrical and control conduit in the ballasted flocculation base and excavating next to the west of the lagoon area.

Next week, auger cast pile drilling will resume for new foundations including the gravity thickener and solids storage tank structures, along with the foundation for the second tower crane.

In late March, the second tower crane will be installed, located on the west of the site. Pre-work will be occurring over the next few weeks to prepare for crane assembly and the foundation.

Although there are no anticipated “new” activities or new sources of noise or vibration, neighbors can expect some noise and potential vibration during the auger cast drilling, concrete work and excavation, depending on locations or personal sensitivities. Also, there will be an increase in truck traffic with concrete trucks and dump trucks hauling spoils off site during the concrete pouring.

After daylight savings begins, work hours will be increasing Monday to Friday from 7:00 a.m. to 7:00 p.m. and Saturdays, from 9:00 a.m. to 5:00 p.m., which are allowed within the conditions of approval for the project.

For more detail about what activities are happening on site please read more to see the table below.

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Friday - February 28, 2014

Pipeline Construction Update

This update includes information about construction work in the following areas of
Lake Oswego. Please read more for specific information on each location:

  • East Waluga Park parking lot
  • Lanewood Street
  • Douglas Circle
  • Upper Drive
  • Iron Mountain Boulevard
  • Chandler Road
  • Lake Oswego Hunt Club

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Thursday - February 20, 2014

River Intake Construction Update

Heavy rains over the weekend may have contributed to a breach on the bank side of the cofferdam, causing it to fill with water. Crews worked to reinstall sheet piles to repair the breach earlier this week.

A second failure on the river side of the cofferdam occurred late yesterday, resulting in several sheet piles detaching and tilting into the river. Safety crews were on-site last night monitoring the situation. Damage assessments are currently underway and the focus is on securing the cofferdam against any further failure. No injuries were reported during this event.

The Partnership and its contractor’s first priority is safety. Crews will be working to stabilize and secure the sheet piles. Despite the breach, work will be able to continue within portion of the pump station that has already been constructed.

Neighbors may notice an increase in noise and potential vibration as crews work to repair the cofferdam. Updates will be provided once the approach to repairs is determined.

For more information, please contact the Project Hotline at 503-697-6502 or email lotwater@ci.oswego.or.us.

Thursday - February 20, 2014

Cofferdam collapses in Gladstone

In the news...

A cofferdam for a new Lake Oswego water intake pumping station currently under construction on the Clackamas River collapsed Wednesday afternoon in Gladstone.

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Thursday - February 20, 2014

LOT acknowledges disruptive noise

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Friday - February 14, 2014

Pipeline Construction Update

This update includes information about construction work in the following areas of
Lake Oswego. Please scroll down for specific information on each location:

  • East Waluga Park parking lot
  • Lanewood Street
  • Douglas Circle and Upper Drive
  • Iron Mountain Boulevard
  • Chandler Road
  • Twin Fir Road
  • Lake Oswego Hunt Club

For the most up to date information on construction and traffic detours, call the hotline on 503-697-6502 or contact us.

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Friday - February 14, 2014

Water Treatment Plant Construction Update

The first phase of demolition work is now complete. Over the next few weeks, work will be concentrated on excavating, drilling auger cast piles for new foundations and concrete pouring.

Next week, a deep excavation (about 15 feet) next to the newly installed sheet piles to the west of the lagoons will take place. This is to prepare for the solids storage tank structure and gravity thickener. Once excavation is complete, auger cast piles will be drilled to support the foundation.

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Friday - February 7, 2014

River Intake Construction Update

The river intake pump station walls are continuing to rise! Over the last month, work has focused on forming the structural interior pump walls, installing reinforced bar to support the walls and setting the forms for the next level of exterior walls.

Starting mid next week, a large concrete pour will occur around the exterior wall forms and interior struts, to support the walls. This should take about three days to complete, weather permitting. This pour will bring the elevation of the exterior walls to 45 feet!

Neighbors can expect some noise and an increase in truck traffic during the concrete pour, as 12-15 concrete trucks come and go. Generally, during the next three weeks, work hours will be 7:00 a.m. to 5:00 p.m. Monday through Friday.

Once the concrete is poured for the walls and struts, crews will begin working on forming the pump station floor decks.

We apologize for the inconvenience construction may cause and thank you for your patience as work progresses.

Saturday - February 1, 2014

Pipeline Construction Update: Lake Oswego

This update includes information about construction work in the following areas. Please read more for specific information on each location:
  • East Waluga Park
  • Quarry Road
  • Lanewood Street
  • Iron Mountain Boulevard
  • Twin Fir Road
  • Chandler Road
  • Lake Oswego Hunt Club
We apologize for the inconvenience this work may cause and thank you for your patience as construction progresses.
 

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