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SAN JOSE — All the talk, the money, the official reports and master plans to try to end homelessness in Silicon Valley won’t stop what is supposed to happen Monday in the shadows of the overpasses connecting highways 101, 280 and 680.

Caltrans crews have scheduled an early morning sweep of one of the city’s largest homeless encampments, where more than 70 people are living under tarps.

City officials acknowledge the need for the sweep — the risks of violence and victimization increase the larger the encampment grows. But they also realize that for many people living there, their immediate prospects are grim.

“They will most likely wander somewhere, somewhere else,” said Jacky Morales-Ferrand, director of the city’s housing department. “We try to encourage them to go to shelters, but for some people that’s just not an option.”

Advocates for the homeless plan to show up at the encampment Monday and protest, linking arms and praying. But they know their efforts will be mostly symbolic.

“We don’t believe we’ll be able to stop the sweep from happening,” said Sandy Perry, president of the nonprofit Affordable Housing Network of Santa Clara County. Caltrans did not immediately return calls requesting comment.

The city has counted some 200 homeless encampments within its borders, from small to large. Many popped up after the city disbanded the notorious “Jungle” in 2014, where some 300 to 400 homeless people were living near Kelley Park and numerous neighbors complained. The encampment beneath the overpasses is in a mostly industrial area off Story Road.

Homeless shelters and numerous other special housing programs and nonprofits serve just a fraction of the 4,350 people homeless in San Jose on any given night. Throughout San Jose, apartments for the homeless are opening and large-scale housing projects are on the books.

But in a county where voters approved a measure to spend $950 million over 10 years to invest in very low and moderate-income housing projects, residents are resisting efforts to build them in their own neighborhoods, fearing their property values will plummet.

“To the extent we have those challenges, it will only delay our ability to develop housing,” Morales-Ferrand said.

Four decades ago, when the city was paving the way for the rush and riches of Silicon Valley, this massive freeway interchange was the scene of a protest of a different kind. In 1976, when state funding had dried up, truncated spans of the overpasses seemed to float overhead, connected to nothing. In a publicity stunt seen ‘round the world, City Councilman Joe Colla — with the help of a crane and helicopter — posed for an epic photo of himself standing atop an incomplete span next to an old Chevy Impala. His arms stretched wide.

“Where do we go from here?” read a caption running with the photo.

Today, the homeless people living on the patch of state property in the northwest quadrant of the crossing freeways — now officially known as the Joe Colla Interchange — are asking the same thing.

“I don’t know where I’m going to go,” said Sherry Todd, 53, who has been living in a tent here since June. “I really don’t.”

Living in one of the most expensive regions in the world, in the midst of a housing crisis, makes it that much more difficult to find an answer.

The roar of the traffic flying overhead that awakes Todd each morning is coming from commuters traveling from farther and farther away. People hoping to purchase a house in San Jose — where the average family home costs $1.1. million — would have to earn more than $200,000 a year to afford it. Rent for an average two-bedroom house costs more than $2,600 a month, meaning the renter would need an annual salary of about $104,000.

For those living on the edges, with drug or mental health problems or other health, employment and family crises, the prospect of finding a real home is nearly impossible.

The city and county and numerous nonprofits have been working for years to solve the problem, but the number of homeless keeps rising. Including warming centers open only on the coldest nights, the county has 1,890 shelter beds. The fact that it was a record 78 on Saturday in San Jose, while the Super Bowl in Minneapolis was expected to be the coldest on record, says something about the staying power of the Bay Area’s homeless population.

Last month, the city opened the Plaza Hotel downtown with 46 rooms to provide housing for people more capable of transitioning to the rental market. The “Vermont house,” with 16 rooms for chronically homeless veterans, is scheduled to up later this month, and by the end of the year, 134 apartments built by the nonprofit First Community Housing will open for the chronically homeless on Second Street.

Another 521 units for the homeless are funded and in some phase of development and 93 apartments are set aside for temporary, emergency support. The county is spending $250 million in bond funds for more housing projects.

The city is also mulling the idea of building villages of tiny homes to house the homeless.

For Perry, who will be protesting Monday’s planned sweep, the projects aren’t enough.

“If homelessness is increasing, what they’re doing is not working,” Perry said. “We need solutions on a scale with the problem.”

For Scott Wagers, a pastor who handed out sandwiches and snacks at the encampment Saturday, solutions can’t come soon enough.

“In the process of waiting, how many are going to die?” he asked. “This is a Fourth World Country in Silicon Valley. This is tantamount to a natural disaster. I think they need to treat this like FEMA and set up legal encampments.”

Caltrans has posted signs around the encampment warning that the sweep is coming. Some of the residents have already packed up and moved on, but most have stayed.

Jacquline Bojorquez, 39, who has been living under the overpass for several months, says she expects this sweep will be like all the others.

“I plan on grabbing my stuff — all I can carry and my dog — and leave, then come back and set up,” she said. “That’s what we always do.”

The city and other nonprofits plan to have outreach workers during Monday’s sweep, offering shelter and other services. But they know that many won’t take them. While some shelters have kennels for pets, many don’t. Couples often are not allowed to stay together, and rules about leaving the shelters before dawn are restrictive. Most don’t want to leave their possessions, which are often not allowed. Shelters are often several bus rides away.

So David Martinez, 21, who has been homeless since he ran away at 16, says he won’t go far on Monday.

“We’re just going to go out on the street, wait till they clean up and remove the trash, move to the other side of the freeway, and then just come back,” he said. “I’ll wait till they come. Where else am I going to go?”