French drain and yard drainage in Atlanta: local operators and what it costs
Water problems in Atlanta yards usually come from slope and clay. Rain runs off the hill above, the red clay barely soaks it in, and it ends up against a foundation or across a patio. A French drain, a swale or regrading can redirect it, but Atlanta's code is specific about where the water may go. This page covers those rules, the ground, timing, and a typical local cost.
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What french drain and yard drainage costs in Atlanta
$20 to $50 a foot, or about $1,000 to $5,000 for a 50 to 100 foot drain
Based on Pro Operator Network's national french drain and yard drainage cost guide, checked against published cost guides, and adjusted to the Atlanta-Sandy Springs-Roswell metro area using its 2024 price level from the U.S. Bureau of Economic Analysis (100.1, where the U.S. average is 100).
A typical range, not a quote. Your own price depends on your property and is set by whoever takes on your project.
Where the city lets water go
Atlanta's stormwater rules say runoff must not harm neighboring lots through concentrated flow. A downspout or other collection device has to discharge at least ten feet from a shared property line and be pointed away from it, and drainage facilities may not discharge onto the surface of the public right-of-way. A French drain that empties at the side fence or onto the sidewalk can break those rules, so plan the outlet first.
Why clay slopes send water downhill
The red clay common across the Piedmont, such as the Cecil series, is firm and sticky and takes in water slowly, so rain on an Atlanta hillside mostly runs across the surface. A drain set across the slope above the problem area, with a steady fall to a safe outlet, usually does more than a drain at the low spot alone. Wrapping the pipe and stone in fabric helps keep the clay from silting it up.
Rain through the year
Atlanta gets about fifty inches of rain a year, spread across every month, with July and March the wettest and October the driest. A dry autumn is a good time to dig, but walking the yard during a heavy rain shows exactly where the water runs.
Permits and Georgia 811
A drain project that disturbs less than five thousand square feet is generally exempt from Atlanta's land disturbance permit, unless it is within two hundred feet of a stream bank, though the city's minimum erosion rules still apply. Digging with a machine needs at least three business days of notice to Georgia 811.
For your project post
Describe where water collects or enters, the slope above it, possible outlets that keep ten feet from the property line, the rough length of the drain, and whether downspouts should feed into it.
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