While most San Francisco supervisors are pushing to redirect budget money to pet causes like neighborhood safety and food pantries for the homeless, Mission District Supervisor Hillary Ronen also wants $160,000 set aside to pay for a fourth aide in her office.

The move has some inside City Hall rolling their eyes. While none of Ronen’s colleagues is publicly criticizing her, Supervisor Aaron Peskin’s reaction to an earlier proposal to give all board members an additional aide was, “Over my dead body.”

Ronen — who was chief of staff for former Supervisor David Campos — says she needs the help because the amount of work in her City Hall office is “absolutely insane.” She says her three aides are working up to 15-hour days to keep up with the avalanche of emails, calls and other public contacts.

As evidence, she sent us stats showing that complaints to the city’s 311 hotline have resulted in 16,558 cases being opened in her District Nine over the past decade — more than any other district.

“The Mission is in crisis in many ways, and it’s why so many of my constituents are angry,” Ronen said.

And the phones in her office are likely to keep ringing. On Monday, a temporary Navigation Center that she championed to provide shelter and services to homeless people will open at 26th Street and South Van Ness Avenue — over the objections of many neighbors, who no doubt will soon be calling.

S an Francisco Chronicle columnists Phillip Matier and Andrew Ross appear Sundays, Mondays and Wednesdays. Matier can be seen on the KPIX TV morning and evening news. He can also be heard on KCBS radio Monday through Friday at 7:50 a.m. and 5:50 p.m. Got a tip? Call (415) 777-8815, or email matierandross@ sfchronicle.com. Twitter: @matierandross