I drive on I-5 in California, and the exit signs posts if there is a jail, state mental hospital, prison, detention center at that particular off ramp. Is there a policy where this is required? Why are incarceration centers posted on freeway exits?
edit: Can you please cite a policy that requires these detention centers to be posted? Is it a federal policy or a California State policy?


I’ve only noticed them at the prisons that are out in bummfuck Cali. Off the 5 in the Central Valley, like OP said, or out in the desert off the 10.