Measure G: G - Allowing Private Vehicles on the Great Highway in Sunset Dunes Park
San Francisco County · San Francisco County · November 3, 2026
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?
In plain language
Measure G is about the Upper Great Highway in Sunset Dunes Park, which is currently closed to private cars. A YES vote would close the park from Monday 4:00 a.m. through Friday 6:00 p.m. (unless a holiday falls on a weekday) so the roadway can reopen to private vehicles during that time. A NO vote keeps the park open to the public without cars during those hours.
Impartial analysis
The Way It Is Now: Sunset Dunes Park is an open recreational space that replaced the Great Highway between Lincoln Way and Sloat Boulevard (Upper Great Highway) and is closed to private vehicles at all times. Sunset Dunes Park (former Upper Great Highway) is open to emergency vehicles, official government vehicles, intra-park transit shuttle buses, and similar authorized vehicles. Map provided by San Francisco Recreation and Park Department. The Proposal: Proposition G would 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. The Upper Great Highway will remain open to emergency vehicles, official government vehicles, intra-park transit shuttle buses, and similar authorized vehicles. Proposition G would require the City to obtain all necessary approvals, including any permits required by the California Coastal Act or from other government agencies, to reopen the roadway known as the Upper Great Highway to private vehicles. A “YES” Vote Means: If you vote “yes,” you want to 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 “NO” Vote Means: If you vote “no,” you do not want the City to make these changes.
Official ballot arguments
Filed for the official voter guide by each side, printed as submitted.
Argument in favor
Yes on G: Safe streets and great parks. We need both. Since the Great Highway closed, traffic injuries in Sunset neighborhoods have risen sharply – a serious and unacceptable threat to public safety. That’s why Westside neighbors led a citywide volunteer effort to gather 16,000 signatures and place Proposition G on the ballot. We support great parks, but Prop G gives us both a great park AND the safe streets and neighborhoods our families deserve. Yes on G restores the compromise in place from 2021 to 2024: it keeps the Great Highway closed on weekends, allowing access to it as a park, but opens it to vehicle travel Monday through Friday. This compromise was working until Sunset Supervisor Joel Engardio, without a single community meeting, put forward a measure permanently closing the Great Highway. His betrayal of Sunset families cost him his job – he was recalled through a volunteer-led neighborhood campaign. Prop G gives us both safe streets AND a great park: • Allows weekday vehicle access on the Great Highway, helping keep traffic off neighborhood streets. • Maintains the whole space as a park on weekends and holidays. • Retains access to walking paths, bike lanes, and all off-road amenities, every day of the week. Every San Franciscan deserves safe streets, whether they’re walking, biking, taking Muni, or driving. We do not have to choose between great recreational spaces and public safety. We need both. Great public spaces should bring our city together, not create harmful consequences for our communities. Great parks make our city better. Safe streets save lives. Prop G gives us both. And when safety is at stake, we have a duty to respond. Vote Yes on Prop G. Richard Corriea, SFPD Commander Ret.
As Sunset neighbors and merchants, we ask you to vote NO on closing Sunset Dunes park. Don’t spend $20 million over five years to close our thriving coastal park. • Our streets are safer with Sunset Dunes. Analyzing public data, independent sources like The Frisc and Streetsblog agree: crashes in our neighborhood are down since the park opened. The Frisc confirms: “there’s no evidence of increased street mayhem around the closed Great Highway. In fact, it’s the opposite.” • Prop G is a park closure, not a compromise. Prop G removes every park feature added since Sunset Dunes opened — the playground, the skate park, and every bench. It also kills a majority of park visits, as nearly 60% happen on weekdays. That’s not a compromise — it’s a closure. A closed road is not a park, and can never become a world-class coastal promenade. • Traffic is flowing fine. Data also show that commute times remain within prior projections. The most impacted trips are 2-4 minutes longer during rush hour, while most trips are unaffected. • The park is good for our community. Sunset Dunes became our neighborhood’s town square and has boosted local business revenue — some up to 50%. • The coast belongs to you. Our city’s coast belongs to all San Franciscans, not just the lucky few who live near it. Sunset Dunes opens our coast for everyone to enjoy. Thank you for voting NO on G to save Sunset Dunes park. See you at the park! Outer Sunset Neighbors Sunset Merchants Association Sunset Parent Advocates — Outer Sunset Neighbors; Sunset Merchants Association; Sunset Parent Advocates
Argument against
Proposition G would destroy Sunset Dunes park In San Francisco, we don’t destroy our parks; we protect them. With over 2 million visits since last year’s opening, Sunset Dunes is one of San Francisco’s most visited parks. Proposition G asks you to spend nearly $10 million to demolish a coastal park (plus up to $1.9 million every year for added roadway maintenance), to remove all amenities, and to end the nearly 60% of visits that are on weekdays. Please join us in voting NO on G to save our coastal park because: • Proposition G destroys a thriving park. Proposition G would require the city to remove all park features to make space for traffic. That means no more playground, skate park, or oceanview seating. No more park. • Proposition G guts the majority of park visits. Nearly 60% of visits to Sunset Dunes are on weekdays. Proposition G would remove all of those visits and prevent service workers who work weekends from using the park at all. • Proposition G is a solution in search of a problem. Traffic fears have not materialized; three independent analyses confirm traffic impacts are minimal. The most impacted trips are 2-4 minutes longer during rush hour, with most trips unaffected. • Proposition G replaces progress with pollution. San Francisco’s leading environmental groups are united: Sunset Dunes is the best plan for our coastal environment as we adapt to climate change and sea-level rise. • Proposition G locks our coast into being a road forever. Community planning is underway to transform the coast into a world-class park, but Proposition G kills all future park improvements. How will future generations judge us if we destroy our successful coastal park? Join us in voting NO on Proposition G. Senator Scott Wiener Supervisor Matt Dorsey Supervisor Bilal Mahmood Supervisor Rafael Mandelman Supervisor Myrna Melgar Supervisor Danny Sauter Sierra Club — Senator Scott Wiener; Supervisor Matt Dorsey; Supervisor Bilal Mahmood; Supervisor Rafael Mandelman; Supervisor Myrna Melgar; Supervisor Danny Sauter; Sierra Club
Scott Wiener turns his back on serious safety concerns. Why? He’s ABSENT from the Westside. Scott Wiener was part of the backroom deal that closed the Great Highway without community meetings or input from neighbors. Now, Wiener turns his nose up once again at Westside residents concerned for the safety of our children, elders, and families. Wiener calls the sharp rise in traffic injuries since the Great Highway closed “minimal.” That can only be because Scott Wiener doesn’t walk our streets and neighborhoods. More than 16,000 San Franciscans signed the petition to put Prop G on the ballot. We organized because City Hall refused to listen. We believe Prop G is a sensible solution that gives San Francisco both great parks AND safe streets. Prop G gives us: • Recreation seven days a week. Walking paths, bike lanes, the beach, and other amenities remain available every day. • Weekday vehicle access that helps keep traffic off our neighborhood streets. • A car-free park on weekends and holidays. Prop G doesn’t “destroy” a park. It gives us both. We had a compromise that worked. Out-of-touch politicians took it away. Prop G gives it back. Our safety cannot be ignored. Vote Yes on Prop G. Richard Corriea, SFPD Commander Ret.
What supporters and opponents say — outside sources (not official ballot arguments)
Statements by campaigns, officials and news coverage, quoted with attribution and linked to the original. VoterDecoder did not write them and does not endorse either side.
Supporters say
No public statements in favor were found.
Opponents say
No public statements against were found.