Overview

Improvements are completed at the 280/880/ Stevens Creek Boulevard interchanges. The project began construction 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

• 08_18-15 Nighttime I-880 Ramp Closure Effective Friday, August 21
• 07 15 15 Monroe and Stevens Creek Intersection Traffic Signal Shutdown Thursday
• 06 05 15 North Side of Stevens Creek Boulevard Bridge Re-opens
• 05 27 15 Monday Night Traffic Signal Shutdown
• 05 24 15 Final Project Paving Begins
• 05 11 15 Signal Shutdown at Monroe & Stevens Creek
• 04 09 15  New NB I-280 to NB I-880 Direct Flyover Ramp Opens April 13
• ​Map Showing Project Improvements
• 03 25 15 Key Project Feature Almost Complete
• 03 16 15 Flurry of Nighttime Ramp and Lane Closures

Objective

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.

Project Fact Sheet

More Information

• CA Dept. of Transportation, District 4, 280 880 Stevens Creek Project Web Page
• I-880/Stevens Creek Boulevard Interchange Improvements Map
• NB I-280 to NB I-880 Direct Connector Map
• Environmental Process Documents and Reports Page

Operations

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

Environmental Milestones: