Caltrans, the Sonoma County Transportation and Climate Authorities (SCTCA), and the City of Santa Rosa held a ribbon cutting on Thursday, Dec. 11, 2025, for the $43.7 million Hearn Avenue Overcrossing Replacement Project, celebrating the opening of the new Highway 101 overcrossing that features two traffic lanes in each direction, two barrier-separated bicycle lanes, and sidewalks lining each side of the overpass.
Ghilotti Construction was the contractor on the 20-month project that involved complex, sequenced construction and demolition phases, requiring the removal of one overcrossing and the construction of another in its place while keeping traffic flowing.
The new structure vastly improves upon the original 1957 structure which contained only one lane in each direction and a single narrow sidewalk…