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Project Details

Southwest Oregon Culverts (Oregon 38 and U.S. 101)

Design Phase

Region 3: Southwestern Oregon (Drain, Elkton, Lakeside, Reedsport , Coos, Douglas )

​This bundle of projects will repair or replace more than 150 culverts along the Umpqua Highway (Oregon 38) and Oregon Coast Highway (U.S. 101) in Coos and Douglas Counties. This will result in better drainage, lower maintenance costs and improved fish passage.


Traffic Impact

​Traffic impacts will vary with each individual project. Smaller culverts will require single-lane closures, controlled by flaggers, with delays up to 20 minutes. Large culvert replacements may require detour lanes and frequent delays, with traffic controlled by flaggers or temporary traffic signal.


Construction on the first project began in the summer of 2015 and all projects are scheduled for completion by 2019.
Several projects were completed before 2018:

  • KN 19474 -- OR38: Culvert & Fish Passage Upgrades, (2015)
  • KN 19501 -- US101: Culvert & Fish Passage Upgrades (2015)
  • KN 17476 -- OR38: Culvert Upgrades, MP 0.9-42.6 (2016)
  • KN 19685 -- OR38: Culvert Upgrades, MP 39.2-56.7 (2017)
  • KN 19802 -- US101: Eel Cr Roughened Channel (2017)
  • KN (N/A) -- OR38: Culvert Repairs at MP 6.4 and 6.9 (2017)

The five remaining projects will be completed in 2018 and 2019.

  • KN 19737 -- OR38/US101: Small & Large Culvert Upgrades (2018)
  • KN 19736 -- US101: Southport Slough Culvert Replacement (2018)
  • KN 19735 -- US101/Wildwood Dr: Clear Creek Culvert Replacements (2018)
  • KN 19739 -- US101: Culvert & Fish Passage Upgrades, Phase 2 (2019)
  • KN 19810 -- OR38: Hougland & Unnamed Crk Culvert Replacements (2019)



​Starting in 2015, the Oregon Department of Transportation began replacing hundreds of culverts along Oregon 38 (Umpqua Highway) and U.S. 101 (Oregon Coast Highway) in Coos County and Douglas County. Many of the culverts are aging and damaged, requiring frequent maintenance to address drainage problems.

The three-year pilot program, a joint effort of ODOT and the Oregon Department of Fish and Wildlife, is intended to improve drainage and fish passage along streams crossing under the highways.​​​


OR 38 | ​Oregon 38 (MP 0-57) from Reedsport to I-5, and U.S. 101 (MP 198-244) from the Douglas/Lane County Line to the Oregon 42 junction.

Cost and Funding

​$30 million (estimate) for entire pilot program



Maps & Media

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Project Contact

Public Information Officer
Dan Latham

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Last Updated

2/22/2019 1:46 PM

Project Number


Project Documents

Related documents to this project
R3-Culverts-FAQ.pdfFrequently Asked Questions (June 1, 2015)
R3-Culverts-INFO.pdfProject information sheet (Nov. 10, 2015)
R3-Culverts-NEWS-2014.pdfNews release -- ODOT, ODFW agree on plan to repair failing highway culverts (Oct. 21, 2014)
R3-Culverts-NEWS-2015.pdfNews release -- Four-year pilot program to replace culverts (July 2, 2015)
R3-Culverts-SLIDE.pdfSlide show of project photos (June 26, 2015)

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