Cars travel on county Highway J4 near Byron in an undated image. The two-lane road that stretches between Highway 4 in Byron and Interstate 205 near Tracy is a heavily used commute route that would be improved to four lanes as part of the proposed State Route 239 Project. (Google image)
Public comments are being accepted for a proposed new state highway that would connect state Highway 4 in eastern Contra Costa County to either Interstate 580 in Alameda County or a location further east at Interstate 205 in San Joaquin County.
State Highway 239 would connect from Highway 4 at Marsh Creek Road south for about 17 miles to one of the two endpoints being considered under the project. The new state highway proposal has been years in the making and is sponsored by Caltrans and the Contra Costa County Transportation Authority.
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Dan McMenamin is the managing editor at Bay City News, directing daily news coverage of the 12-county greater Bay Area. He has worked for BCN since 2008 and has been managing editor since 2014 after previously serving as BCN’s San Francisco bureau reporter. A UC Davis graduate, he came to BCN after working for a newspaper and nonprofit in the Davis area. He handles staffing, including coaching of our interns, day-to-day coverage decisions and management of the newswire.
Proposed Highway 239 would improve travel in eastern Contra Costa; public can comment
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Public comments are being accepted for a proposed new state highway that would connect state Highway 4 in eastern Contra Costa County to either Interstate 580 in Alameda County or a location further east at Interstate 205 in San Joaquin County.
State Highway 239 would connect from Highway 4 at Marsh Creek Road south for about 17 miles to one of the two endpoints being considered under the project. The new state highway proposal has been years in the making and is sponsored by Caltrans and the Contra Costa County Transportation Authority.
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Please visit My Account to manage your account.
Dan McMenamin, Bay City News
Dan McMenamin is the managing editor at Bay City News, directing daily news coverage of the 12-county greater Bay Area. He has worked for BCN since 2008 and has been managing editor since 2014 after previously serving as BCN’s San Francisco bureau reporter. A UC Davis graduate, he came to BCN after working for a newspaper and nonprofit in the Davis area. He handles staffing, including coaching of our interns, day-to-day coverage decisions and management of the newswire.
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