Rain delayed Monday’s planned start of Ga. 400 improvements in Forsyth County, which include repairs of damaged concrete of existing lanes and adding a lane in each direction. Weather-permitting, work on the project will begin today, the Georgia Department of Transportation said in a news release. The inside left lane will be closed through noon today for repairs between McFarland Parkway (exit 12) and Ga. 141/Peachtree Parkway (exit 13).