Life on the Dirtiest Block in San Francisco

According to city statisticians, the 300 block of Hyde Street, a span about the length of a football field in the heart of the Tenderloin neighborhood, received 2,227 complaints about street and sidewalk cleanliness over the last decade, more than any other. It’s an imperfect measurement — some blocks might be dirtier but have fewer calls — but residents on the 300 block say that they are not surprised by their ranking.

Over the last five years the number of unsheltered homeless people in San Francisco has remained relatively steady — around 4,400 — and the sidewalks of the Tenderloin have come to resemble a refugee camp.

The city has replaced more than 300 lampposts corroded by dog and human urine over the last three years, according to the San Francisco Public Utilities Commission. Replacing the poles became more urgent after a lamppost collapsed in 2015, crushing a car.

Gavin Newsom, a former mayor of San Francisco and the leading candidate for governor in next month’s election, told The San Francisco Chronicle editorial board last week that the city had reached the point of “enough is enough.”

“You can be too permissive, and I happen to think we have crossed that threshold in this state — and not just in this city,” Mr. Newsom said. “You see it. It’s just disgraceful.”

Mayor London Breed, who was elected in June, campaigned to clean up squalor.

Ms. Breed has announced plans to provide an additional 1,000 beds for the homeless over the next two years, but she is also targeting a relatively small group of people living on the streets who she says are beyond the point of assisting themselves. The concept of this involuntary removal is known as conservatorship. A law recently passed in Sacramento strengthens the city’s powers of conservatorship with a judge’s permission.

“There are about 100 to 150 people who are clearly mentally ill and who are cycling through the system and who need to be forced into conservatorship,” Ms. Breed said in an interview. “We know all of them.”

According to Ms. Breed’s office, 12 percent of people who use the services of the San Francisco Department of Public Health account for 73 percent of the costs. The majority of these heavy users have medical, psychiatric and substance use issues, according to the department.