By Kristi Coale : thefrisc – excerpt

SF must protect a sewage plant and the zoo from rising seas. The project now won’t be done until at least 2033, more than 20 years after a ‘master plan’ came out.
In recent years, San Francisco’s Great Highway has been the site of great drama, both manmade and natural. More is on the horizon.
In November, the city will decide for a third time whether cars should have access to the stretch of the road now known as Sunset Dunes Park. Sometime around Election Day, the city’s rainy season should begin, and forecasters say there’s a good chance for heavy storms — the same kind that in past years battered the shore and ripped out chunks of the Great Highway…
That afflicted section of the road, known as the Great Highway Extension, is less than a mile long and the only barrier that keeps the Pacific Ocean from swamping critical water infrastructure, including a sewage treatment plant, and the San Francisco Zoo.
Part of the extension has already fallen into the ocean, thanks to vicious storms in the winter of 2009-10. The roadway is so narrow that only northbound traffic is allowed now. This stretch of SF’s southwest shore is the city’s first big test to reinforce itself against the rising sea levels and stronger storms of climate change. So far, the city is failing…
In 2022, the SFPUC had the final plan in place: not just a wall and sand dune, but a walking and biking trail, as well as the complete removal of the Great Highway Extension. The agency hoped it could start construction in late 2023 or early 2024 and wrap up by the end of 2027.
Now the SFPUC has pushed back the start date another five-plus years to the end of 2029. The entire project (formally the Ocean Beach Climate Change Resilience Project) won’t be done until 2033, at the earliest…
SFPUC spokeswoman Nancy Crowley says the latest delay is due to three factors.
One is that the Coastal Commission requested several design changes. Crowley says the project team is working on seven modifications, including the relocation of beach-access stairs and the redesign of a restroom at the south end of the trail. More changes could happen prior to construction, Crowley adds.
A second reason for the delay is that the SFPUC only recently identified the need for improvements to a pipe — separate from the concrete wastewater tunnel — in the same area. “Doing that work as part of this project will avoid having to return later and disrupt the area again,” Crowley says.
The third reason is zoo access. Right now, cars going northbound on the Great Highway Extension can enter and exit the zoo parking lot. Closing the extension for good means shifting all traffic to the Sloat Boulevard access point, which is currently designed only for entrances.
The Board of Supervisors voted to permanently close the extension in May 2024, more than two years ago. Crowley says the original design for zoo access assumed that the Upper Great Highway would be open to cars on weekdays. But Prop K’s victory in Nov. 2024 turned that road into Sunset Dunes Park, which planners must adjust for… …
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