Ash Street Deep Culvert Replacement

Project Background / Summary: 

The existing 15-inch corrugated metal pipe (CMP) was built to convey stream flows when the ravine was filled to construct Ash Street. Over the years, the CMP has experienced severe corrosion (rusting away) and is in jeopardy of collapsing. Pipe replacement work will involve channel stabilization within the natural resource, street closure during construction and easements to operate on private property.

See Key Documents below for the project location.

If you would like more information about this project, please contact David Kudna, Project Manager at email.

Project ID: 
WO 184
Project Year: 
Project Status: 
Project Contact: 

David Kudna, Project Manager, (503) 534-5299

Status Updates: 

November 18, 2014

This project is substantially complete.  The Contractor is working on punch list items.

October 3, 2014

  • Culvert has been installed.
  • Retaining Wall construction is complete. Contractor will finish backfilling early next week.
  • Emery & Sons Construction will finish up next week.
  • Landscape and Paving will begin in approximately two weeks.

August 14, 2014

The Contractor will begin work the week of August 18, 2014. Ash Street will be closed Tuesday, August 19th  or Wednesday, August 20th, due to a gas line move by NW Natural Gas.

July 31, 2014

On July 29, 2014, City Council awarded the construction contract to the lowest bidder, Emery & Sons Construction, Inc. Construction is expected to begin sometime late summer 2014.

737 Ash Street
Lake Oswego, OR 97034