The Contra Costa County Flood Control and Water Conservation District shared the project area map of the construction of the Grayson and Walnut Creeks levee improvement between State Route 4 and BNSF railroad tracks in Martinez, Contra Costa, Calif. The work will occur from June 1 to Dec. 31, Monday through Friday from 7 a.m. through 5 p.m. (Contra Costa County Public Works Department via Bay City News)

The Contra Costa County Flood Control and Water Conservation District will begin construction June 1 on a levee improvement project designed to strengthen flood protection around the Central Contra Costa Sanitary District wastewater treatment plant in Martinez, according to county officials. 

The project, scheduled to continue through Dec. 31, will raise the western levee along Grayson Creek and Walnut Creek between State Route 4 and the BNSF railroad tracks, county officials said. 

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