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Fern Valley Interchange
Project Information










PHOENIX  -  Weekend construction is complete of the Luman-Fern Valley Road intersection. Contractors for the Fern Valley Interchange project reopened the intersection to motorists about 3:30 a.m. Sunday, Sept. 27, more than a full 24 hours ahead of schedule.
By contract, they had until 5 a.m. Monday, Sept. 28, to fully reopen the intersection.
Work began Friday at 7 p.m., closing the connection between Oregon 99 and I-5 to begin raising the intersection with rock to match adjacent new construction grades. Paving began Saturday night at about 6 p.m.
Throughout the construction, motorists were still able to access the Shoppes at 24 and Holiday RV Park.
 ODOT thanks Phoenix area businesses and residents for their patience during this key stage of construction which will allow for the new interchange to open early next year.
 There will be another similar weekend closure a later date when a new concrete wearing surface will be poured. Due to curing times that work is expected to take the full period from Friday night through early Monday morning.  ##





Latest aerials from July 15, 2015


FernValley2_July 15_2015.jpgFernValley2_July 15_2015.jpg





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.

 Design File


Diverging Diamond Interchange


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.




Check out the latest project video:


Fern Valley (Phoenix) Interchange
Temporary southbound ramps open July 2014







For More Information ​

Public Information Specialist
Voice: (541) 774-6388