Alto Tunnel Archive

by Bjorn Griepenburg, Policy & Planning Director, Marin County Bicycle Coalition Last week, the county of Marin released an updated […]

This Tuesday, the County of Marin  released the Alto Tunnel Investigation and Cost Estimate Update, signaling the completion of several years of information-gathering on the long-shuttered tunnel. “MCBC is delighted that this day has finally come,” said Executive Director Jim Elias. “With detailed cost estimates in hand, we now know what it will take to close the last significant gap in the North-South Greenway.”

Efforts to open Alto Tunnel reached another milestone this week

Reopening the Alto Tunnel remains critical to the completion of Marin’s North-South Greenway.