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Home>Projects and Programs>I-280/I-880/Stevens Creek Boulevard Improvements Project

I-280/I-880/Stevens Creek Boulevard Improvements Project


Improvements to the I-280 and I-880, and the I-880 and Stevens Creek Boulevard interchanges were completed in 2015. Project  construction began in late Fall 2012. Its purpose is to improve traffic flow, safety and access between the Interstate 280 (I-280) and Interstate 880 (I-880) freeway corridors near Stevens Creek Boulevard, including modifications to the freeway-to-freeway intersection of State Route 17 (SR-17)/I-280/I-880 freeway interchange, as well as the adjacent interchanges at I-880/Stevens Creek Boulevard.

Specific improvements include:

  • Reconfiguration of the full cloverleaf I-880/Stevens Creek Boulevard interchange to improve traffic flow in the surrounding interchange area by widening and realigning ramps. 
  • Widening the overcrossing structure at Stevens Creek Boulevard over I-880, improving intersections and providing enhanced access for pedestrians and bicyclists.
  • Separating freeway-to-freeway traffic from local traffic by construction of a new direct connector from northbound I-280 to northbound I-880.
  • Construction of direct off ramps to Monroe Street from Southbound I-880.

Construction Updates


Improve overall safety and traffic flow, enhance pedestrian friendly features along Stevens Creek Boulevard, separate regional freeway-to-freeway traffic from local traffic and reduce queuing and traffic backups onto northbound I-280 from the connecting ramps to I-880 and Stevens Creek Boulevard.

Map of Proposed 280/880 Improvements

Project Fact Sheet
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More Information


Upon completion, Caltrans will operate and maintain the improved highway interchanges. The City of San Jose will operate and maintain the local streets outside of Caltrans right-of-way limits.

Capital Cost/Project Funding

$62.1 million from a combination of federal, CMIA, City of San Jose, and VTA funds have been designated for the project.

Project Schedule


Mid 2012                                                             

Right of Way: Mid 2012
Construction Start: Fall 2012
Completion August 2015

Environmental Milestones:


Draft Environmental Document Circulation: April 18, 2011 to May 18, 2011
Final Environmental Document: Summer 2011