SAN FRANCISCO (KCBS)— Golden Gate Bridge District announced 50 of its workers will be going on a one-day labor strike beginning Tuesday morning at 6 a.m. and lasting until 3:30 p.m.

Ferry and bus service will not be impacted and the Golden Gate Bridge itself will remain open. In addition, lane changers are being told to report for work.

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Members of 13 unions making up the Golden Gate Bridge Labor Coalition came to their decision Monday after union members had voted in August to authorize a strike. There has been no contract settlement in that time.

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The bridge district is proposing a three-year contract with an annual three-percent wage increase, but the union says the raise would be negated by members having to pay more for healthcare premiums.

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450 union employees have been working without a contract since July.