Yes, as a matter of fact! Physical plant in the NE corner of the campus.
And years before that, a friend and I called on a new hospital in Brookfield, WI. We told the folks we had an assignment for school to write about the hospital (it was a lie, but we really were interested in the place). We got a great tour of the power plant, tunel system, backup power generator, etc. THis hospital also had state of the art unmanned vehicles for food and linen delivery. This was back in about '68 or so.
There was a manhole at the basement of the School of Architecture we used as an entry. We spent hours exploring the different buildings after hours using the tunnels.