<P> During the morning commute hours, traffic congestion on the westbound approach from Oakland stretches back through the MacArthur Maze interchange at the east end of the bridge onto the three feeder highways, Interstate 580, Interstate 880, and I - 80 toward Richmond . Since the number of lanes on the eastbound approach from San Francisco is structurally restricted, eastbound backups are also frequent during evening commute hours . </P> <P> The western section of the Bay Bridge is currently restricted to motorized freeway traffic . Pedestrians, bicycles, and other non-freeway vehicles are not allowed to cross this section . A project to add bicycle / pedestrian lanes to the western section has been proposed but is not finalized . A Caltrans bicycle shuttle operates between Oakland and San Francisco during peak commute hours for $1.00 each way . </P> <P> Freeway ramps next to the tunnel provide access to Yerba Buena Island and Treasure Island . Because the toll plaza is on the Oakland side, the western span is a de facto non-tolled bridge; traffic between the island and the main part of San Francisco can freely cross back and forth . Those who only travel from Oakland to Yerba Buena Island, and not the entire length to the main part of San Francisco, must pay the full toll . </P> <P> San Francisco, at the mouth of the bay, was perfectly placed to prosper during the California Gold Rush . Almost all goods not produced locally arrived by ship . But after the first transcontinental railroad was completed in May 1869 San Francisco was on the wrong side of the Bay, separated from the new rail link . The fear of many San Franciscans was that the city would lose its position as the regional center of trade . The concept of a bridge spanning the San Francisco Bay had been considered since the Gold Rush days . Several newspaper articles during the early 1870s discussed the idea . In early 1872, a "Bay Bridge Committee" was hard at work on plans to construct a railroad bridge . The April 1872 issue of the San Francisco Real Estate Circular contained an item about the committee: </P>

Is there a toll from oakland to san francisco