The Lincoln Tunnel XBL (Express Bus Lane) in NJ is one of the busiest bus lanes in the US and operates as a contra-flow lane by converting one outbound lane to bus only during the morning rush hour. Pic related is the starting area of the lane - buses come in on the ramps and are funneled to the contra-flow lane that heads east.
GPS Location:
https://www.google.com/maps/@40.7805253,-74.0544904,269m/data=!3m1!1e3