A supply line lets go inside a townhome wall. A lower level takes on water after an evening of hard rain. A stain spreads across the ceiling under the unit upstairs. Water damage in Smyrna, GA arrives in all three ways, and the public record says a good deal about which homes it reaches and why.
Water Damage Cobb County is a free referral service that connects callers with independent local water damage restoration providers. It is not a restoration contractor, and it does not perform, price or guarantee any work. When you call the number on this page you are connected with a local restoration provider, and the assessment, the scope of work and the price are matters between you and that provider.
The rest of this page is the evidence for Smyrna specifically: federal flood insurance claims from the city’s two main ZIP codes, the gauge readings on Nickajack Creek, Rottenwood Creek and the Chattahoochee River, Census figures on what kind of homes stand here, and the split between city and county water service. Where a local rule could not be confirmed, the page says so instead of guessing.
Water coming in right now?
If a pipe or appliance is the source, close the main water shut-off, which Consumer Reports says is usually at the meter or where the main line enters the house. The CDC’s advice on power is blunt: if reaching the main switch means stepping into standing water, do not do it, and have an electrician turn the power off. Photograph the damage before you move anything. The page on emergency water removal in Cobb County covers the first hours in detail.
Call now to be connected with a local restoration provider about water damage in Smyrna.
What 129 flood claims say about Smyrna
FEMA publishes the National Flood Insurance Program’s claim records with names and addresses removed. On October 5, 2026 that dataset held 129 flood insurance claims from ZIP codes 30080 and 30082, with dates of loss going back to 1981. Two cautions come with the number. Those ZIP codes take in the city and some unincorporated addresses that carry a Smyrna mailing address, and FEMA notes that the dataset is not an official federal report. The count will also move as FEMA adds records.
Read closely, the records make four points about how water gets into homes here.
- 57 of the 129 claims, or 44 percent, were on properties rated in flood zones X, B or C. Those zones lie outside the Special Flood Hazard Area, the mapped high-risk zone.
- 66 claims were coded as accumulation of rainfall, and 27 as a stream, river or lake overflowing. That is about half for rain that pooled and about one in five for water leaving a channel.
- 35 claims record a finished or unfinished basement or enclosure. Many records leave that field blank, so 35 is a floor, not a share of Smyrna homes. No public source gives the city’s mix of slab, crawl space and basement foundations.
- 22 claims carry dates of loss within three days of one another in late August 2023. That is the largest cluster in the record, and it has its own section below.
The second point matters most to a homeowner who has never looked at a flood map. In about half of these claims the cause recorded was rain that had nowhere to go. The records do not say where it collected, but the usual places are a low lot, a yard that drains toward the house or a stairwell to a lower level. Being away from a creek is not the same as being out of reach of water.
The first point matters for insurance. Georgia’s Office of Commissioner of Insurance says a standard homeowners policy does not cover flooding, and that flood cover is a separate policy bought through the National Flood Insurance Program. The Insurance Information Institute’s rule of thumb is that water coming from the top down, such as rainfall or a burst sprinkler, is generally a homeowners policy matter, while water rising from the ground up is a flood policy matter. Georgia’s Environmental Protection Division adds that owners in a Special Flood Hazard Area with a mortgage from a federally regulated or insured lender must carry flood insurance. Outside that zone the decision is usually the owner’s, and 57 Smyrna-area claims came from outside it.
One more detail for homes with a lower level: FEMA’s own summary of the program says a flood policy does not cover personal property kept in a basement, and does not pay for temporary housing during repairs. The page on flood damage restoration in Cobb County explains how a flooded home is dried and rebuilt.
The late-August 2023 storms
The largest cluster of claims on record for the two ZIP codes is 22 claims with dates of loss from August 28 to August 30, 2023. Nineteen were on properties rated in flood zone AE, one in zone A and two in zone X.
The National Weather Service’s climate summary for August 2023 describes what happened. On August 28 and 29, thunderstorms formed along a surface boundary over north Georgia and metro Atlanta and stayed stationary for around six hours, with rain rates close to 4 inches an hour. The summary names other counties, not Cobb, so no Smyrna rainfall total is quoted here. The creek gauges tell the local part: Nickajack Creek reached 11.95 feet on August 30, 2023, almost 2 feet above its flood stage, and Rottenwood Creek reached 12.27 feet on August 29.
FEMA’s records also show what those claims paid. Of the 22, 18 received a payment for the building, from about $5,100 at the low end to about $93,600 at the high end. The middle payment was near $18,800. Together the building payments came to roughly $548,000, with roughly $69,000 more for contents.
How to read those dollar figures
The range, the median and the totals are this site’s arithmetic on FEMA’s public records, not figures FEMA publishes. They are insurance payments on flood policies after deductibles and policy limits. They are not contractor prices, and they say nothing about what any provider would charge.
Earlier events show up in the same data. Twelve claims date from 2009, five of them between September 18 and 22, the week of the flood that set the record on Nickajack Creek. Five claims are dated August 14, 2013, and two are dated December 30, 2021.
Nickajack Creek by the numbers
Nickajack Creek runs down the west and south-west side of Smyrna. The U.S. Geological Survey lists monitoring sites along it at Smyrna-Powder Springs Road, Jones Shaw Road, Church Road, Hurt Road, Concord Road and Cooper Lake Drive. The stream gauge with the long record sits farther down, at US 78/278 near Mableton, downstream of the city. Every stage below was measured there.
| Nickajack Creek at US 78/278 | Stage |
|---|---|
| Action stage (National Weather Service) | 8 feet |
| Flood stage | 10 feet |
| Moderate flooding | 16 feet |
| Major flooding | 21 feet |
| Record, September 2009 | 19.85 feet |
| July 11, 2005 | 16.6 feet |
| September 27, 2024 (Hurricane Helene) | 15.83 feet |
| August 30, 2023 | 11.95 feet |
The 2009 record stands almost 10 feet above flood stage. USGS dates that peak September 21 and the Weather Service September 22. The Weather Service’s crest history for the gauge lists more than two dozen crests at or above the 10-foot flood stage since 1995, which works out to something close to one a year on average. At that gauge, reaching flood stage is an ordinary event for this creek, and now and then it goes far past it.
The Weather Service also publishes what each stage means on the ground near the gauge. Parts of a park about a mile upstream begin to flood at 10 feet. Back yards begin to flood at 12 feet. Water approaches some home foundations at 16 feet and has entered several homes at 18. Those impact statements describe properties near the gauge, downstream of Smyrna, so they are a guide to how the creek behaves and not a list of Smyrna streets.
For the neighborhoods around the gauge itself, see water damage restoration in Mableton, GA.
The east side: Rottenwood Creek and the Chattahoochee
Smyrna has water on both flanks, and it helps to get the map right. Nickajack Creek is on the west and south-west. The Chattahoochee River is on the east and south-east, running past Vinings and Oakdale. Rottenwood Creek is to the north-east, where its gauge, named ‘at Interstate North Parkway near Smyrna’, sits in the Cumberland area. Cumberland is unincorporated Cobb County, which is why Truist Park and The Battery Atlanta are next door to Smyrna and not in it.
Rottenwood Creek’s flood stage is 14 feet. Its record crest is 14.67 feet, set on September 8, 2021, and it reached 13.31 feet in the September 2009 flood.
At the Weather Service’s Chattahoochee gauge at Vinings, flood stage is 14 feet and major flood stage is 20. The record is 29 feet, set on December 10, 1919. The river reached 28.12 feet on September 22, 2009 and 23.75 feet on September 27, 2024, the same day Nickajack Creek crested during Hurricane Helene. USGS reported that the 2009 reading at Vinings was the highest in 81 years and rated it a 1 percent chance flood at that point on the river. The same agency put the odds of the flooding seen in parts of Cobb and Douglas counties at less than 1 in 500 in any year.
City water or county water? Read the bill
Who you call about a broken main or a sewer backup depends on a detail many residents have never checked: whether the address is inside the Smyrna city limits. A Smyrna mailing address does not settle it.
The City of Smyrna bills its own water and sewer customers through its utility billing office. It does not produce the water. The Cobb County-Marietta Water Authority lists the City of Smyrna among its wholesale customers, and says plainly that it has no residential customers of its own and sends residents to their local utility with service questions.
The county utility is a separate system. The Cobb County Water System says it serves unincorporated Cobb County and operates in Acworth, Kennesaw, Powder Springs and Mableton. Smyrna is not on that list. A home with a Smyrna mailing address outside the city limits is therefore likely a county customer. That is an inference from the two utilities’ own statements, so check the name printed on the water bill.
| What you are facing | If the bill says City of Smyrna | If the bill says Cobb County Water System |
|---|---|---|
| Sewage backing up in the home or the street | Contact the city’s utility, using the number on your bill | Call the county’s emergency dispatch line, listed on its water page |
| A water line gushing in the street or at the meter | Contact the city’s utility | Call the county’s emergency dispatch line |
| A leak between the meter and the house | Ask the city where its responsibility ends | The owner’s to repair under the county’s published rule |
| Water inside the building | Call for a restoration provider once the source is stopped | Call for a restoration provider once the source is stopped |
On the county system the dividing line is the meter. Cobb County Water System owns and maintains the pipe from the main to the meter, and the pipe from the meter to the building belongs to the property owner. The City of Smyrna’s own rule on that point could not be read for this page, and neither could an after-hours water and sewer number for the city. In-city residents should confirm both with the city before relying on anything written here.
The same split answers a question people ask about Smyrna’s tap water. The water is supplied wholesale by the Cobb County-Marietta Water Authority and delivered by whichever utility sends the bill. Questions about its quality belong with that utility, which can point you to its water quality report. This page makes no statement about the water’s quality either way.
When the water in the house came up through a drain, it is a contamination problem as well as a water problem. The page on sewage cleanup in Cobb County covers which system to report it to and how the cleanup differs.
Not sure who to call first? Call to be connected with a local restoration provider and describe what you are seeing.
Townhomes, condos and rentals: who makes the call
Fewer than half of Smyrna’s homes are detached houses. The Census Bureau’s American Community Survey for 2020 to 2024 counts 27,040 housing units in the city: 45.8 percent single-family detached, 17.5 percent attached homes such as townhomes, and 35.7 percent in buildings with two or more units. Of the occupied homes, 40.6 percent are rented.
That mix changes the first ten minutes of a water emergency. In a detached house the owner finds the shut-off and makes the call. In a shared building, the water may be coming from someone else’s plumbing, and the wall or ceiling it is soaking may not be yours to open.
Water through a shared wall or from the unit above
Stop the source if it is yours. If it is not, knock on the neighbor’s door and call the property manager at once, because the water will not stop until someone closes a valve. Photograph the ceiling, the walls and anything damaged, with the time visible if your phone records it. Then call about drying your own unit. Water that has run down through a floor assembly usually wets more than the stain shows.
If you rent
Tell the landlord or manager right away and follow it up in writing, with photos, so there is a dated record. Repairs to the building itself are normally arranged by the owner, through the owner’s own insurance. Your furniture, clothes and electronics are a separate matter: a landlord’s policy generally does not cover a tenant’s belongings, which is what renters insurance is for. This page states no Georgia landlord and tenant rule, because none was verified for it.
If you own in an association
Before work starts on anything structural or shared, ask the association or its manager what the master policy covers and where the unit owner’s responsibility begins. The answer is in the governing documents and it varies from one community to the next. Drying your own interior is rarely something to wait on, but cutting into a shared wall or a roof is a different question.
Two building waves
Smyrna was built in two bursts, and the age of a home says something about the plumbing and appliances inside it. The first came after Lockheed reopened the wartime Bell bomber plant in 1951. The city grew from 2,005 people in 1950 to 10,157 in 1960 and 19,157 in 1970. About 16 percent of today’s homes date from the 1950s and 1960s.
The second wave is larger. The 1980s are the biggest single decade in the Census counts, at 23 percent of homes. A local history published by the Cobb County Courier dates the downtown rebuild to a 1990 groundbreaking, with a new library and community center in 1991, a new city hall in 1996 and Market Village completed in 2002. The median year built across the city is 1990, and about 36 percent of homes date from 2000 or later.
The percentages are this site’s arithmetic on Census survey estimates, which carry margins of error. Their use here is limited and practical. A house from the 1950s or 1960s has had sixty years or more for original supply and drain lines to be replaced, or not. A home from the 1980s or 1990s is old enough that water heaters, supply hoses and shut-off valves have likely been through more than one replacement cycle. Age is a reason to look, not a diagnosis.
When the creek takes the yard
Flooding is not the only way Nickajack Creek damages property. On February 28, 2024 the Cobb County Courier reported on a Smyrna homeowner whose back yard on the creek had been eroding for the nine years she had owned it, leaving a drop of about 15 feet beside a house built in 1994. The late-August 2023 storms made it worse.
The story is useful for what it shows about responsibility. The mayor, quoted in the article, said he did not know how to assign responsibility when public money would be spent on private property. The land across the creek from the home is in unincorporated Cobb County. For its part, the county’s stormwater program states that it is not authorized to maintain drainage structures on private property that were never dedicated to the county.
The honest takeaway is that who pays for bank erosion on private land is unsettled here. A restoration provider deals with water that has entered a building. A failing creek bank is a question for an engineer, for the city or county depending on which side of the line the lot sits, and often for the owner’s own budget.
Freezes, rain and humidity: the Atlanta station figures
No weather station in Smyrna has a long record, so these figures come from Atlanta Hartsfield-Jackson airport, about 18 miles south. NOAA’s 1991 to 2020 normals for that station give 50.43 inches of precipitation a year, with measurable rain on about 116 days. No month is dry: the wettest, July, averages 4.75 inches and the driest, October, 3.28.
The temperature at the station drops to freezing or below on about 36 days in an average year. Most of those nights do no harm to plumbing. Consumer Reports gives 20 degrees Fahrenheit as the temperature below which frozen pipes generally occur, and names basements, attics and garages as the places most at risk. On December 24, 2022 the low at Atlanta was 8 degrees, according to the Weather Service’s monthly summary. After that freeze, Georgia’s insurance commissioner publicly invited residents with stalled burst-pipe claims to contact his office.
Rain can arrive in very large amounts. In September 2024 Atlanta measured 12.29 inches against a monthly normal of 3.82, with daily records on September 26 and 27 as Hurricane Helene passed. Nickajack Creek and the Chattahoochee at Vinings both crested on September 27.
Humidity is the reason wet materials here need help to dry. A compilation of 1961 to 1990 station averages published by Current Results puts Atlanta’s relative humidity at 82 percent in the morning and 52 percent in the afternoon. Those figures are old and secondhand, and none exists for Smyrna itself, but the comparison with the EPA’s advice is still instructive. The agency’s guide to mold and moisture says indoor humidity should stay below 60 percent, and that wet materials dried within 24 to 48 hours will in most cases not grow mold. Outdoor air that damp is one reason an open window is not a dependable way to dry a soaked room. What happens after that window closes is the subject of mold remediation in Cobb County.
Permits and flood insurance: what could and could not be confirmed
Rebuilding after water damage in Smyrna falls under Georgia’s state minimum standard codes. The Department of Community Affairs lists the current mandatory codes as the 2024 International Residential, Building, Plumbing, Mechanical and Fuel Gas Codes and the 2023 National Electrical Code, each with Georgia amendments. The state Attorney General’s office adds that electricians, plumbers, and heating and air conditioning contractors must hold a state license.
What could not be confirmed is the City of Smyrna’s own permit practice. The city’s permit pages could not be read while this page was researched, so it states no threshold for when drywall, flooring, electrical or plumbing repair needs a permit, and names no office. Confirm with the City of Smyrna before rebuild work starts. If the address turns out to be in unincorporated Cobb County, the county is the permit office instead.
The flood insurance facts are firmer. The City of Smyrna takes part in the National Flood Insurance Program as community number 130057. FEMA’s records give December 15, 1977 for the city’s first flood map and October 5, 2018 for the map now in effect. The same record shows no Community Rating System class for Smyrna, so no premium discount is listed for the city. Unincorporated Cobb County next door is a class 7 community, which FEMA’s record equates to 15 percent off for properties in the Special Flood Hazard Area and 5 percent outside it.
Anyone thinking of buying a flood policy should know the timing rule. A National Flood Insurance Program policy takes effect 30 days after purchase, except when it is bought while making, increasing, extending or renewing a mortgage. It cannot be bought for the storm already in the forecast.
What water damage repair costs
No independent published price range specific to Smyrna or metro Atlanta was found for this page. The nearest thing to a public benchmark is national. HomeAdvisor’s cost guide, updated June 17, 2026, gives the figures below. They are that publisher’s estimates across the country, not Smyrna prices and not a quote.
| Item | HomeAdvisor national estimate (June 17, 2026) |
|---|---|
| Water damage restoration, average | $3,868 |
| Typical range | $1,383 to $6,369 |
| Low and high extremes | $450 to $16,000 |
| Drywall repair | About $300 to $850 |
| Ceiling repair | About $450 to $1,600 |
| Burst pipe repair | About $1,000 to $4,000 |
The same guide prices by the kind of water involved: about $3.50 a square foot for clean water, $5.25 for grey water and $7.50 for black water. That spread is why the source of the water matters to any estimate. The size of the wet area, how long it sat, and whether finished walls and floors have to come out move the number from there.
Water Damage Cobb County does not set prices and has none to publish. The provider you are connected with prices the job after seeing it. Ask for the scope in writing and, if a claim is involved, ask how the provider documents moisture readings and drying for the insurer.
Smyrna places, named correctly
Smyrna is bordered by Vinings to the east, Marietta to the north and west, and Mableton to the south and south-west. Inside it, the rebuilt downtown is Smyrna Market Village and the Village Green. Smyrna Heights is mapped south-west of downtown, between the city center and Nickajack Creek. Cooper Lake is on the south side, near the USGS creek site at Cooper Lake Drive, and Oakdale is at the south-east end toward the river, with parts of it outside the city limits. The Silver Comet Trail begins in Smyrna and runs 61.5 miles west.
Other neighborhood names listed for Smyrna include Williams Park, King Springs, Belmont, Forest Hills, Bennett Woods, Cheney Woods, Creatwood and Laurel Springs. They are listed here by name only, because nothing about their housing or drainage was verified for this page.
Two corrections to common shorthand. Ruff’s Mill and the Concord Covered Bridge, which crosses Nickajack Creek, carry a Smyrna postal address but are mapped outside the city, so they are near Smyrna. And many subdivisions with Vinings in the name sit close to the line: Vinings itself is unincorporated, so each address needs checking, because city or county decides the water utility and the permit office. For addresses to the north, see water damage restoration in Marietta, GA, and for the county as a whole, water damage in Cobb County.
How the call works
The call is free. It connects you with an independent local restoration provider, and whether you hire that provider is your decision. Many participating providers offer 24-hour emergency service, but availability depends on the provider and is not guaranteed. Verify the license and insurance of anyone you hire, as you would for any contractor.
A few details make the conversation faster:
- The address, and whether it is inside the Smyrna city limits or in unincorporated Cobb County, if you know.
- Where the water came from, if you can tell: a supply line, an appliance, the unit above, a drain, rain or a creek.
- When it started and whether the source has been stopped.
- Which rooms and levels are wet, and whether there is a basement or lower level.
- Whether you own or rent, and whether an association or property manager is involved.
- The name of your insurer and whether you carry a separate flood policy.
The trade standard for this work, the IICRC S500, places finding and correcting the cause of the water on the property owner and not on the restorer. The standard does not say who fixes the cause. Depending on what it is, that may mean a plumber, a roofer or the utility as well as a restoration provider.
Call to be connected with a local restoration provider about water damage in Smyrna, GA.
Questions people ask
Which creeks flood in Smyrna, and how high have they been?
Nickajack Creek, on the west and south-west side, has a 10-foot flood stage at its gauge downstream of the city. Its record is 19.85 feet in September 2009, and it reached 15.83 feet on September 27, 2024. Rottenwood Creek, to the north-east, has a 14-foot flood stage and a record of 14.67 feet set on September 8, 2021. The Chattahoochee at Vinings reached 28.12 feet in 2009.
My home is not in a FEMA flood zone. Can it still flood in Smyrna?
The claim records say yes. Of 129 flood insurance claims from ZIP codes 30080 and 30082 in FEMA’s public data on October 5, 2026, 57 were on properties rated in zones X, B or C, outside the Special Flood Hazard Area. About half of all the claims were coded as accumulated rainfall and not a creek overflowing. A standard homeowners policy does not cover flooding, according to Georgia’s insurance regulator.
Is my water and sewer run by the City of Smyrna or by Cobb County?
Check the name on the bill. The City of Smyrna bills its own water and sewer customers. Cobb County Water System says it serves unincorporated Cobb County and does not list Smyrna among the cities it operates in, so a home with a Smyrna mailing address outside the city limits is likely a county customer. That last point is an inference, which is why the bill is the test.
Who do I call for a sewer backup or a broken main in Smyrna?
Call the utility named on your water bill. County customers can use Cobb County Water System’s emergency dispatch line, which the county says takes sewer backups in a home or street and gushing broken water lines. An after-hours number for the City of Smyrna’s utility could not be confirmed for this page, so in-city residents should use the contact printed on their bill. Sewage inside the home also needs professional cleanup.
Do pipes really freeze and burst in Smyrna?
The conditions for it occur. The long-record station at Atlanta, about 18 miles south, drops to freezing or below on about 36 days in an average year, and recorded 8 degrees Fahrenheit on December 24, 2022. Consumer Reports gives 20 degrees as the level below which frozen pipes generally occur, with pipes in basements, attics and garages most exposed. Know where your main shut-off valve is before a hard freeze.
How quickly does mold start after a leak?
The EPA’s guide says wet materials dried within 24 to 48 hours will in most cases not grow mold, and the joint federal guide for homeowners says a flooded home not dried in that time should be assumed to have growth. Humid air does not help: a published compilation of 1961 to 1990 averages for Atlanta puts morning relative humidity at 82 percent, well above the 60 percent the EPA advises staying under indoors.
What does water damage repair cost around Smyrna, and what did flood claims here actually pay?
No independent Smyrna price range was found. HomeAdvisor’s national guide, updated June 17, 2026, gives an average of $3,868 and a typical range of $1,383 to $6,369. Separately, FEMA’s records show 18 building payments on flood claims dated August 28 to 30, 2023 in ZIP codes 30080 and 30082, from about $5,100 to about $93,600, with a median near $18,800 by this site’s arithmetic. Those are insurance payments, not contractor prices.
I rent, or I own a townhome or condo. Who should make the call?
Anyone can call about drying the space they live in. A renter should tell the landlord or manager immediately and in writing, since repairs to the building are normally the owner’s to arrange, and should look to their own renters policy for belongings. A townhome or condo owner should ask the association what its master policy covers before work begins on shared walls, roofs or structure. More than half of Smyrna’s homes are attached or in multi-unit buildings.
The creek is eating my back yard. Is that the city’s job to fix?
It is unsettled. In a February 28, 2024 Cobb County Courier report on a Smyrna yard eroding into Nickajack Creek, the mayor said he did not know how to assign responsibility when public money would be spent on private property. Cobb County’s stormwater program says it is not authorized to maintain drainage structures on private property never dedicated to it. Start by asking the city or county, depending on where the lot sits.
Who supplies Smyrna’s tap water?
The Cobb County-Marietta Water Authority supplies it wholesale. The authority lists the City of Smyrna among its wholesale customers and says it has no residential customers and does not issue bills. The city delivers and bills the water inside the city limits. Questions about water quality should go to the utility named on your bill, which can direct you to its water quality report.
Does Smyrna have a flood insurance discount?
FEMA’s record for the City of Smyrna, National Flood Insurance Program community 130057, shows no Community Rating System class, so no community discount is listed for addresses inside the city. Unincorporated Cobb County is a class 7 community, which FEMA’s record equates to 15 percent off in the Special Flood Hazard Area and 5 percent outside it. Whether an address is city or county therefore affects the premium.
Is Water Damage Cobb County a restoration company?
No. Water Damage Cobb County is a free referral service that connects callers with independent local restoration providers. It does not dry, clean or repair anything, employs no technicians, holds no contractor license and does not set prices or guarantee any provider’s work. The provider you are connected with is an independent business, and it is up to you to verify that provider’s license and insurance before hiring.
What should I have ready when I call?
Have the address and, if you know it, whether the home is inside the Smyrna city limits. Be ready to say where the water came from, when it started, whether it has been stopped, and which rooms or levels are wet. Mention whether you own or rent and whether an association is involved. Photos taken before any cleanup, and your insurer’s name, help with whatever comes next.