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In 1988 Contra Costa voters passed Measure C, a half-cent sales tax authorized for twenty years to pay for extensive transportation improvements throughout the county. The measure included a detailed Expenditure Plan, which was administered by the Contra Costa Transportation Authority (CCTA). The measure generated over $1 billion to fund such projects as a BART extension, freeway improvements, bus enhancements, better bike facilities, and transportation options for seniors and those with disabilities. Measure C was unique in that it also included a program to plan for growth throughout the region. The CCTA adeptly managed the funds brought in through Measure C, overseeing this public investment in transportation to accomplish:

  • A BART extension to North Concord and Pittsburg/Bay Point
  • Widening of segments of Highway 4
  • Reconfiguration of western Highway 4 for safety and traffic capacity
  • A Richmond Parkway connection to I-80 and the Richmond/San Rafael Bridge
  • Nearly $200 million provided to local agencies for street and road improvements
  • $32 million worth of expanded services for seniors and the disabled
  • $33 million worth of bus service enhancements

In November of 2004, voters approved Measure J, which continues the half-cent sales tax of Measure C through 2034. As with Measure C, the new Measure J includes an approved Expenditure Plan that was developed by local governments, agencies, and leaders, and is administered by the CCTA. Measure J allows the county to continue with its plans for transportation improvements into the future. It is estimated the measure will bring in $2.5 billion in funds over 25 years. These funds will be used for projects crucial to the growth and sustainability of the region, including:

  • I-680 Carpool Lane Gap Closure/Transit Corridor Improvements
  • $360 million for local streets and roads maintenance and improvements
  • A BART extension into East County (called eBART)
  • A new Fourth Bore for the Caldecott Tunnel
  • Highway 4 East Widening
  • $123 million for improved transit for seniors and people with disabilities
  • Revising the Growth Management Program to encourage more housing in some communities
  • A requirement that all Contra Costa County cities, towns and the Board of Supervisors approve an Urban Limit Line

For more information on the CCTA, including projects it has funded and its role as the county’s Congestion Management Agency, visit