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Fern Valley Interchange
 Aerial of Fern Valley Interchange_July2016.jpgNB off ramp open.jpg

  Aerial of Fern Valley Interchange_July2016.jpgAerial of Fern Valley Interchange_July2016.jpg
July 22, 2016                                                                                                             
Final off-ramp opens at I-5 Phoenix interchange
PHOENIX — The Exit 24 northbound off-ramp opened to traffic this morning, the last permanent ramp to open on the new Interstate 5 Phoenix interchange.
With the opening, the I-5 speed limit in the project area will be increased to 65 mph.
Work continues throughout the project area, primarily the west side of the interchange.
Prime contractor Hamilton Construction of Springfield continues construction on the new Bear Creek Bridge, Greenway connections, and Oregon 99. The contract end date is September 30.
The $72 million Fern Valley Interchange project, which began in 2014, features a Diverging Diamond Interchange design, the first in Oregon and the first on the West Coast. Under this design, traffic moves to the opposite (left) side as it crosses the bridge. The design keeps traffic moving more safely and efficiently than standard diamond interchanges.
For current highway construction and travel information, visit www.tripcheck.com or dial 511.

Drive It!


The new interchange bridge is being constructed just north of the existing bridge, leaving most roadways west of the interchange relatively untouched. The Diverging Diamond interchange design has a narrow footprint, which helps avoid touching most businesses during and after the project.


 Drive the partially completed interchange in 2 minutes 
Project Information

 Video of Luman Rd. intersection concrete pour, Feb. 6 & 7, 2016











Project Background

The $72 million Fern Valley Interchange project began in in the spring of 2014. Due to the projects size and complexity - it encompasses east and west Phoenix roadways, I-5 and Oregon 99 - the project requires more than two full construction seasons, finishing in September 2016. It also includes bike and pedestrian connections.
The federally-required enviromental process began in 2004. For more information on the Fern Valley Environmental Assessment please contact Gary Leaming at the contact information below.

 Design File



For More Information ​


Public Information Specialist
Voice: (541) 774-6388