After nine straight days of rain, it should come as no surprise that Big Creek has risen above flood stage. The National Weather Service extended its flood warning for Big Creek in Alpharetta and South Forsyth until Wednesday morning.
Flood stage is 7 feet, and the river was at 7.6 feet and rising at 8:45 a.m. today. Minor flooding was occurring in the woodlands and fields along the creek between Cumming in Forsyth County to Alpharetta and Roswell in Fulton County.
Big Creek will continue to rise to near 7.8 feet by this afternoon. But it is expected to fall below flood stage after midnight Wednesday.
Some portions of the Big Creek Greenway in Alpharetta may become closed with around one foot of water, especially upstream and downstream of the flood gauge on Kimball Bridge Road near Rock Mill Park. Portions of the YMCA campground off Preston Ridge Road along the greenway will begin to flood also.
Since the land adjacent to Big Creek is flood plain, no building is allowed within that area – which lessens any impact that might be felt by the minor flooding.