 The 2003 "Project Study Report" proposed replacing the Dumbarton Rail Bridge swing span with a new bascule span, with the option for remote control from the Caltrain operations center or local control; the report also proposed replacing the Newark Slough Bridge swing span with a simpler steel girder swing span under local control, normally left closed to prioritize rail traffic over marine traffic.In addition, the Oakland subdivision would have to be purchased from Union Pacific, and UP indicated they were unwilling to sell only a portion, preferring to sell the entire right-of-way from Oakland to Fremont.The 2003 "Project Study Report" proposed constructing a new rail bridge across Alameda Creek for freight service over the Niles subdivision when Capitol Corridor passenger traffic was moved to the Oakland subdivision.