Bike/Pedestrian Safety Improvements Moving Forward on the Butterfield Corridor

Hello Hidden Valley parents, staff and friends,
We want to make sure you are aware of some key safety improvements for bikers and pedestrians that are in process for Butterfield Road and to thank all of you that have chimed in on these important topics and efforts. See below for some background as well as an update on the efforts moving forward and where to go for more information. Note that improvements are planned for both the Town of San Anselmo portion as well as unincorporated (County of Marin) portion.

Background
The Butterfield Corridor Safety Committee, a subcommittee of Butterfield Corridor Safe Streets, has been hard at work over the past year identifying the community’s long-standing concerns and coming up with improvements to address them. This collaborative group includes representatives from the Sleepy Hollow Homes Association, the County of Marin Department of Public Works, the Town of San Anselmo Public Works, local schools, Safe Routes, the Marin County Bicycle Coalition and interested residents.
The Committee conducted public outreach to gain community feedback. An online poll (https://bit.ly/ButterfieldSurvey) was conducted between January 17, 2022, and February 7, 2022, and an online public meeting was held on April 21. Both the survey and community meeting indicated strong support from residents for two major improvements – creating a “real” bike lane on the County portion of Butterfield Road and a crosswalk at Irving near the community center.
 

Project Update
Unincorporated Portion of Butterfield
At the recent August 23 public meeting, the Board of Supervisors approved moving forward with both the bike lane (from San Anselmo/County line to Sleepy Hollow Drive) and the crosswalk concept at/near the community center. The “no parking” signage and striping/bike stencils will be installed by mid-September as well as green paint in areas most needed. Signs reading “No parking, bike lane” will be installed at approximately 200-foot intervals along both sides of the road. Parking will still be available off-pavement as space permits and, this fall, the committee will be working with homeowners on Butterfield to create more off-pavement parking with focus on the school zone. Please note that the bike lane, shoulder and approximately 20 feet beyond the pavement are all in the County right of way so parking off pavement is not encroaching on your neighbor’s property. The crosswalk concept will now be further developed and cost estimated. Funding will need to be secured for this work.

San Anselmo Portion of Butterfield

The Town of San Anselmo has rolled out a comprehensive safety campaign on the southern side of Butterfield, including pavement patching in the bike lane, a slurry seal over the whole stretch of Butterfield Road from Sir Francis Drake Boulevard to the County Limit, wider bike lanes, additional speed limits signs, and targeted green bike lane markings at intersections. The Town plans to also be installing a Rectangular Rapid Flashing Beacon (RRFB) at the crosswalk at Woodside Drive, and a radar speed feedback sign near the fire station.

For more information, visit the Butterfield Safe Streets webpage at and review the County of Marin staff report (item CA7d) for the 8/23 Board of Supervisors meeting. You can also visit Marin County Bicycle Coalition’s website for a great read with pictures!

For any questions, contact nvernon@marincounty.org.
Here’s to a safer Butterfield Road!

Butterfield Corridor Safe Streets/Butterfield Corridor Safety Committee
A collaboration of Sleepy Hollow Homes Association, County of Marin Department of Public Works, San Anselmo Department of Public Works, Marin County Bicycle Coalition, Safe Routes, local schools, law enforcement and concerned residents