Cops couldn’t stop homeless hoarder Sonia Gonzalez’s block-long trash train on Saturday.

“If she has one cart, OK. A lot of people do that,” said Hell’s Kitchen resident Igor Rocklin. “But this is something unusual. It’s too many. It’s not sanitary.”

Gonzalez wasn’t blocking traffic enough to prompt action from two cops who visited her on West 51st Street near 10th Avenue.

“This is my work!” Gonzalez protested.

Cops and sanitation workers junked 20 shopping carts of Gonzalez’s stuff back in March.