Big Creek Flooding Prompts Warning for Alpharetta, Roswell Areas
Big Creek flooding closes greenway paths and affects YMCA campground as water levels peak Friday morning in Alpharetta area.

ALPHARETTA, GEORGIA β Minor flooding along Big Creek will continue affecting portions of Fulton and Forsyth counties through late Friday night, with water levels expected to peak Friday morning before gradually receding, according to the National Weather Service.
The flood warning issued Thursday at 11:18 p.m. by the NWS Peachtree City office remains in effect until 2:00 a.m. Saturday for Big Creek near Alpharetta. Water levels reached 7.7 feet at 10:45 p.m. Thursday, surpassing the 7-foot flood stage.
Forecasters expect the creek to crest at 8 feet Friday morning before falling below flood stage by late Friday evening.
Greenway and Recreation Areas Affected
The rising waters have impacted multiple recreational facilities and walking paths throughout the region. Minor flooding with 1 to 2 feet of water has closed most walking and biking paths along The Big Creek Greenway, particularly upstream and downstream from the gauge on Kimball Bridge Road and near Rock Mill Park.
Portions of the YMCA Campground off Preston Ridge Road are also experiencing flooding as water levels remain elevated.
Geographic Impact Area
The flooding extends across a significant stretch of Big Creek, affecting woodlands and fields from near Cumming in south Forsyth County to Alpharetta and Roswell in north Fulton County. The minor flooding classification indicates water remains largely contained to undeveloped areas and recreational facilities.
Weather service officials continue monitoring conditions as the creek approaches its predicted peak Friday morning. Residents and visitors should avoid flooded areas and expect continued closures of affected greenway sections until water levels drop below flood stage.
The flood warning represents the latest weather challenge for the metro Atlanta area as spring storms continue bringing periodic heavy rainfall to north Georgia watersheds.


