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I-84 Karcher to Franklin Blvd

The Idaho Transportation Department reconstructed and widened I-84 between the Karcher/Midland and Franklin Boulevard interchanges in Nampa.

El Departamento de Transportación de Idaho está reconstruyendo y ampliando la autopista I-84 entre los intercambios de Karcher/Midland y Franklin Boulevard en Nampa.

Construction is complete!
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Para más información y para recibir una hoja de inforamación, por favor llame 208-334-8567
Construction Update

Bridge Maintenance

The Idaho Transportation Department is constructing maintenance on several bridges between 11th Ave and Franklin Blvd in Nampa.

ITD will work on improving the overpass on 11th Ave., the UPRR bridge, the road above the Phyllis canal, and the overpass at Franklin Blvd. The maintenance work is expected to extend the lifespan of each bridge. Work will occur between late July and late September.

Current Traffic Impacts

Occasional overnight lane closures will continue for several weeks while crews seal the surface of the Northside Interchange bridge and a nearby railroad bridge.
The process will extend the lifespan of each bridge.
What to expect:
  • Work begins July 11 and lasts 3-4 weeks
  • Overnight single-lane closures each night:
    • Eastbound I-84
      • M-F, 10 p.m. to 5 a.m.
      • Sat – Sun, 10 p.m. to 7 a.m
    • Westbound I-84
      • M-F, 10 p.m. to 6 a.m.
      • Sat – Sun: 10 p.m. – 7 a.m.

Northside Boulevard Interchange - SPUI

The interchange at Northside Boulevard has been replaced with a Single Point Urban Interchange to accommodate more traffic and reduce delays.

A SPUI, or Single-Point Urban Interchange is traffic configuration controlled by a central traffic signal. The Northside SPUI is underneath I-84 with a signal directing all turning movements from a single point.

ITD reopened the SPUI on Sunday, May 9 at 6 a.m. Watch on FACEBOOK LIVE.

Construction Progress Video

Click here to see a time lapse video view of the changes taking place during the I-84 widening project.

Check back for regular updates.

Time lapse video

I-84 Photo Gallery

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