For Pitt games the North Shore lots open 5 hours before kickoff, the Kamin Science Center lots about 4, and Alco wants everyone out within 1 hour after the game. Pitt allows cooking grills in the surface lots, but tents, beach umbrellas, glass and RVs are out, and your tailgate stays in the 1 space you parked in. Saturdays here run on Pitt's rulebook, not the Steelers', so pack for it.
Tailgating at Acrisure Stadium