 The 1999 report evaluated the cost estimates for rehabilitating the line from the 1996 report and concurred that the timber trestles should be replaced, the lower portion of the steel through-trusses should be replaced, and the two swing spans were severely corroded but operable in 1996.The 1999 "Dumbarton Rail Corridor Study" estimated the necessary improvements would cost a total of .In 2000, Santa Clara County voters approved Measure A, which set aside a portion of the funds generated from a half-cent sales tax increase for the Dumbarton Rail Corridor.