The Port Authority has announced detours for about 40 bus routes that will have temporary stop changes due to tonight's GNC Live Well Liberty Mile footrace event in Downtown Pittsburgh.

Liberty Avenue and Penn Avenue from Stanwix Street to 11th Street will be closed tonight, detouring buses from 6:30 p.m. to 9 p.m.

Riders can view detour information online, or by calling Customer Service at 412-442-2000 (412-231-7007).