Cyclists rode over the Bolte Bridge in February 2004 as part of their Critical Mass ride. One of the complaints of Critical Mass is that the Bolte Bridge makes no provision for cycle access, whilst more broadly it further entrenches car and oil dependency. According to a police spokeswoman about 300 cyclists took part in the ride, forcing the closure of northbound lanes on the Bolte Bridge for about 25 minutes shortly after 7 pm. It was reported by the ABC that the protest minimally disrupted traffic.