San Francisco · Ballot measure · Nov 3, 2026
Proposition G: Allowing Private Vehicles on the Upper Great Highway in Sunset Dunes Park
Proposition G is on the Nov 3, 2026 ballot in San Francisco. This page summarizes the official documents; every statement links to its source, and we take no position on how you should vote.
The question on your ballot
“Shall the City close Sunset Dunes Park from Monday at 4:00 a.m. through Friday at 6:00 p.m., unless a holiday falls on a weekday, in order to reopen the roadway known as the Upper Great Highway to private vehicles during that time?”A YES vote means
Private motor vehicles could use the Upper Great Highway in Sunset Dunes Park at all times, except from Fridays at 6:00 p.m. until Mondays at 4:00 a.m. and on holidays.
A NO vote means
Sunset Dunes Park stays closed to private vehicles at all times, with emergency, official government, intra-park transit shuttle, and similar authorized vehicles exempt from the restriction.
The money
The Controller states the proposed ordinance would likely result in increased one-time capital project costs of approximately $9.8 million.
The Controller states the proposed ordinance could result in annual cost increases ranging from $500,000 to $1.9 million, depending on future operational decisions made by City departments.
The Controller states the proposed ordinance would require a coastal development permit.
The official arguments
These are the arguments filed with the county for the official voter guide. They are written by their authors, not by the city or by us. We summarize what each says, not whether it is accurate.
Argument in favor
The argument says traffic injuries in Sunset neighborhoods have risen since the Great Highway closed. It says Proposition G restores a 2021 to 2024 compromise: closed to vehicles on weekends and holidays, open to them Monday through Friday.
Official Proponent Argument, Proposition G (Dept. of Elections submission)
Argument against
The argument says Proposition G would remove park features and end weekday visits, which it says are nearly 60% of visits. It says traffic impacts are minimal and the cost is nearly $10 million plus up to $1.9 million yearly.
Signed by Senator Scott Wiener; Supervisor Matt Dorsey; Supervisor Bilal Mahmood; Supervisor Rafael Mandelman; Supervisor Myrna Melgar; Supervisor Danny Sauter; Sierra Club
Official Opponent Argument, Proposition G (Dept. of Elections submission)
Read the official documents
Neighbor opinions
Where do you stand on Allowing Private Vehicles on the Upper Great Highway in Sunset Dunes Park?
Opinions from people who signed in. Not a poll, not a vote, and not our endorsement. We don't check where anyone lives. Your name is never shown.
Keep going on your San Francisco ballot
- Board of Supervisors, District 2: 4 candidates
- Board of Supervisors, District 4: 3 candidates
- Board of Supervisors, District 6: 2 candidates
- Board of Supervisors, District 8: 4 candidates
- Board of Supervisors, District 10: 10 candidates
- Proposition A: Charter changes affecting various city departments and commissions
- Proposition B: Municipal finance corporation and public bank
- Proposition C: Contributions to the Housing Trust Fund
- Proposition D: Changes to ballot measure process
- Proposition E: City Administrator's authority and changes to city contracting
- Proposition F: Changes to Executive Branch Management
- Proposition H: Parcel Tax to Fund Muni Operations
- Proposition I: Changes to Real Property Transfer Tax
- Proposition J: Removal of Foreclosure Exemption for Real Property Transfer Tax
- Take the 2-minute match quiz
- See my ballot plan
Did this help?
PlayPotus is a small independent site: no ads, no campaign or party money. A few dollars from readers keeps local voter guides free.
Chip in $5This supports the site, not any candidate or party. Not tax-deductible.
Every claim here links to its source. See something wrong? Report an errorand we'll check it against the source.
Back to the San Francisco guideSee something wrong? Report an error
Something wrong or missing? Tell us what and where, with a link to a source if you have one. Reports feed the next verification run.