I-84 Construction: Farley Slide
Farley Slide Project
The Oregon Department of Transportation (ODOT) is currently designing a project to increase traveler safety on I-84, just east of Cascade Locks, at a historic landslide called "Farley Slide." This project will address the roadway problems on a 300 foot section of I-84 caused by this active landslide.
This website will be updated the project progresses. Sign up for the email list to receive project updates.
The project will improve safety and reduce annual roadway maintenance by stabilizing the landslide. The landslide has caused ongoing issues:
This section of I-84 was built in 1951 over a steep ravine and ancient landslide deposits. Highway fill placed in the ravine reactivated the landslide and the roadway surface requires significant yearly repairs.
It is anticipated that an earthquake or severe weather event could trigger significant movement of the existing landslide, causing substantial destruction of the roadway, rendering I-84 impassable.
In 1996, during a severe weather event, a 100-foot long by 40-foot wide sink hole opened up in the center median of I-84 in the project location.
This project will:
- Stabilize the landslide before another catastrophic event requires I-84 closures.
- Construct a retaining wall that will stabilize the landslide and have a finished look that will blend into the surrounding geology.
The wall will be below the north side of the highway and will not be noticeable to the casual visitor traveling I-84. The proposed retaining wall itself will be obscured by existing landscape when viewed from the Columbia River.
The project area is located at milepost 48 on I-84 in Hood River County, east of Cascade Locks.
Anticipated Project Timeline
Project Design and Contractor Selection: October 2016 - July 2017*
Construction: Fall 2017 – Fall 2018*
* Schedule is subject to change due to weather, site conditions, crew/material availability
Learn more about other projects on I-84.
Once construction begins, the public can expect the following impacts (more details will be posted here closer to construction):
- Two lanes in each direction will be open on I-84 during construction except for required short-term lane closures.
- A bike detour route will be maintained during construction.
Once construction begins, up-to-date traffic impacts and information can be found on the project web site. The project will be coordinated with other projects on I-84 to ensure travelers can easily access information, as well as allowing for freight to utilize the corridor unimpeded.
How can I get more information?
You can contact Brandy Steffen, ODOT Community Affairs Coordinator if you have questions or comments about this project during regular business hours at 503-731-8230 or Brandy.Steffen@odot.state.or.us
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For ADA (Americans with Disabilities Act) or Civil Rights Title VI accommodations, translation/interpretation services, or more information call 503-731-4128, TTY 800-735-2900 or Oregon Relay Service 7-1-1.