Hearn Avenue Interchange – Phase 3

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The California Department of Transportation (Caltrans), in cooperation with the City of Santa Rosa and the Sonoma County Transportation Authority (SCTA), proposes to modify and reconstruct the US 101/Hearn Avenue interchange. The project would replace the existing Hearn Avenue overcrossing bridge with a new bridge to accommodate four traffic lanes with bike lanes and sidewalks on both sides of the roadway. The project would also increase the bridge height clearance and improve ramp connections to US 101 and provide continuous bike lanes and sidewalks between Corby Avenue and Santa Rosa Avenue.


The Environmental Document has been approved



Caltrans has approved the Final Environmental Document, an Initial Study with Negative Declaration/Environmental Assessment with Finding of No Significant Impact. The Final Environmental Document was prepared following circulation of the Draft Environmental Document from July 22 to August 22, 2016, and consideration of public input received during the comment period. Responses to written comments are provided in Appendix H of the Final Environmental Document. The Final Environmental Document is available at www.dot.ca.gov/d4/envdocs.htm and at the link to the right.

Project design



The proposed project will reconstruct the two-lane Hearn Avenue overcrossing in the same location and along generally the same alignment as the existing structure. Several options studied in earlier stages of the project were found not to meet the proposed project's purpose and need, and were withdrawn from further study. More information about the proposed project and rejected options is included in the Final Environmental Document. 
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Recent events


August 3, 2016 - A public meeting and open house was held to give the community the opportunity to discuss the project and the Draft Environmental Document with Caltrans and City of Santa Rosa staff.

April 22, 2015 - A public scoping meeting was held to get community input on the "scope" of the Environmental Document and the potential environmental effects of the proposed project.

For more information please contact:
Chris Catbagan
Associate Engineer
ccatbagan@srcity.org
707-543-4521