Chicago has a critical shortage when it comes to public bathrooms.

That’s according to a recent investigation from the Chicago Tribune, which found Chicago’s government has failed to provide the public with easy, consistent access to free toilets and scant information is available about many that do exist.

Emily Hoerner, a reporter with the Chicago Tribune’s investigations team who broke the story, said there are fewer than 500 publicly run, barrier-free—without being a paying customer or going through security--restrooms in the city. Many of them are closed during the winter season and very few of them are open at night, she added.

Hoerner emphasized the difficulty unhoused people have in finding restrooms to use regularly. Also, it can be difficult for people with medical needs that necessitate immediate use of a restroom.

And when a public restroom isn’t accessible and somebody needs to go, there can be a fine. Hoerner found that Chicago police officers have issued at least 29,000 tickets for public urination or defecation since 2016. Tickets can have a fine of at least $100 for people who relieve themselves outdoors or on CTA property. And many of those tickets were issued on the city’s South and West sides, she added.

The Tribune put together a searchable map to find the nearest public restroom nearby:

Hoerner spoke to people in other cities that have been trying to increase access to public restrooms. In San Francisco, they’ve simply added more semi-permanent portable toilets with attendants across the city.

She also spoke to people working on this issue in Washington, D.C. where two programs are being piloted. One is to place restrooms that are open 24/7 across the city. The other incentivizes businesses to open and advertise their restrooms as public.