Where Sope Creek Begins
Marietta is the seat of Cobb County, about 23.5 square miles of rolling Piedmont at roughly 1,100 feet elevation, with Kennesaw Mountain rising to the northwest. One of east Cobb's best-known streams starts right in town. Sope Creek emerges from a culvert beneath Sessions Street on the west side of I-75, then slips underground again beneath Cherokee Street before heading southeast.
From there it travels about 11.6 miles, picking up Sewell Mill Creek and Bishop Creek, and drops nearly 300 feet through a small gorge in the palisades before joining the Chattahoochee. A creek that begins under city streets collects runoff from roofs, roads and parking lots almost immediately, which is why intense rain can turn it from a trickle into a torrent.
For Marietta property owners, that means water damage can come from outside as quickly as from inside. Yards, garages and finished lower levels close to a drainage path deserve extra attention.
Cobb County's Rare Flood of 2009
The September 2009 rains were extraordinary everywhere in metro Atlanta, but Cobb County stood out. The U.S. Geological Survey listed Cobb as one of two counties where streamflows had less than a 1 in 500 chance of occurring in any given year. Sope Creek near Marietta peaked at 9,400 cubic feet per second, and Rottenwood Creek near Smyrna reached 4,840.
National Weather Service records from that week include photos of a flooded Cobb County subdivision. Across Georgia, most of the flood deaths happened when drivers went into water covering a road.
Floodwater of that kind is Category 3. It carries mud, debris and sewage, so flood cleanup in Marietta after a creek overflow means removing soaked porous materials, cleaning and disinfecting surfaces, and only then drying the structure.
Historic Districts and Older Houses
Marietta has six historic districts, including Northwest Marietta, Whitlock Avenue, Washington Avenue and Church-Cherokee Streets, several of them on the National Register. Oakton House, built in 1838, is described as the city's oldest continuously occupied residence, and the William Root House dates to about 1845.
In an older home, how water is removed matters as much as how fast:
- Ask whether original plaster, wood floors and trim can be dried in place before anything is cut out.
- Have the crew photograph and label any historic material that must come out.
- Expect drying to be monitored closely, since dense old wood can crack or cup if dried too aggressively.
Our water damage restoration overview explains the general process, and the company you are connected with can adapt it to an older house.
Protecting People and Property in the First Hour
- Stay out of moving water. Cobb County's emergency management agency advises never walking, swimming or driving through floodwaters.
- Stop indoor leaks. Close the main water valve or the shutoff on the leaking fixture.
- Avoid electrical risk. Do not touch switches, cords or appliances while standing in water.
- Raise what you can. Move valuables, electronics and papers to an upper floor or a dry room.
- Record everything. Photograph water lines, damaged items and the source before cleanup begins.
- Bring in help. Call (888) 817-5061 to be connected with a local restoration professional for water extraction and drying.
How a Marietta Drying Job Typically Runs
Assessment
The crew locates the source, classifies the water, and checks floors, walls and ceilings with moisture meters and thermal imaging.
Removal
Extractors pull out standing water. In a flooded garage or lower level, mud and debris are cleared, and contaminated drywall, insulation and carpet are removed.
Drying and verification
Dehumidifiers and air movers run while readings are recorded until materials are back to normal. More detail is on our structural drying page.
Rebuilding
With drying confirmed, water damage repair replaces drywall, flooring and trim. Verify any reconstruction contractor's Georgia license on the Secretary of State's verification site, and ask about insurance and training such as IICRC certification.
Storm Damage and the Mold That Can Follow
Remnants of Hurricane Helene in 2024 brought 6 to 14 inches of rain to parts of north and central Georgia, with some of the heaviest totals in metro Atlanta, along with winds that brought down millions of trees across the state. A single tree on a roof can let rain into the attic for hours. Tarp only when it is safe, take photos, and ask for storm damage cleanup that checks ceilings and walls for hidden moisture.
Mold is the follow-up risk: the EPA notes it can appear within 24 to 48 hours on anything left damp. If you notice a musty smell, spotting or peeling paint after a leak, mold cleanup with proper containment may be needed. See our mold removal page.
On licensing, an industry roundup indicates Georgia has no state license specifically for mold assessors or remediators. That has not been confirmed by an official state source, so ask any company for IICRC or similar certification and for documented moisture readings.
Coverage, Flood Zones and Cobb County Resources
Most homeowners policies do not pay for flood damage. That protection comes from an NFIP or private flood policy, and an NFIP policy generally needs 30 days before it is in force. Look up your address on the Georgia Flood Map Program or FEMA's Flood Map Service Center.
- Cobb EMA suggests raising furnaces, water heaters and electrical panels in flood-prone areas.
- The county's emergency management agency posts preparedness guides and a hazards map.
- Keep a single folder of photos, receipts and drying logs for your claim.
WaterQ cannot speak for your insurer, but organized records help the process. For help at any hour, call (888) 817-5061. Residents nearby can also visit our Smyrna and Kennesaw pages.
Marietta Districts and Nearby Cobb Communities
Our free referral line connects callers throughout Marietta and surrounding Cobb County communities with independent local restoration providers.
Neighborhoods
- Marietta Square
- Northwest Marietta Historic District
- Whitlock Avenue Historic District
- Washington Avenue Historic District
- Church-Cherokee Streets Historic District
- Brown Park area
- Roswell Road corridor
- Cobb Parkway corridor
Nearby communities
- Kennesaw
- Smyrna
- East Cobb
- Powder Springs
- Austell
- Acworth
- Vinings
- Sandy Springs
- Roswell
Marietta Water Damage FAQ
How bad was the 2009 flood in Cobb County?
USGS reported that Cobb was one of two counties where streamflows had less than a 1 in 500 chance of happening in any year. Sope Creek near Marietta peaked at 9,400 cubic feet per second.
Why does Sope Creek rise so fast after heavy rain?
Sope Creek begins inside Marietta in culverts under Sessions Street and Cherokee Street, so runoff from streets, roofs and parking lots flows into it right away during a downpour.
What does Cobb County recommend for homes in flood-prone areas?
Cobb's emergency management agency suggests elevating furnaces, water heaters and electrical panels, moving valuables to higher floors, and never walking, swimming or driving through floodwaters.
Is a state license required for mold remediation in Georgia?
An industry roundup reports that Georgia has no state license specifically for mold remediators, though we have not seen official state confirmation. Ask for IICRC or similar certifications and written moisture readings.
Does WaterQ have a Marietta office or crew?
No. WaterQ is a free referral service with no local offices or crews. We connect you with an independent restoration company, and that company handles the inspection and the work. The line is available 24/7.
Local emergency and flood resources
Official sources for alerts, flood maps and preparedness in and around Marietta: