# Does Your Yard Need a French Drain or Grading? > Find out whether a wet area comes from surface levels or water within the ground. Compare grading and French drain disruption before choosing a Durham scope. URL: https://runwelldurhamdrainagecompany.com/guide/french-drain-vs-grading/ Find out whether a wet area comes from surface levels or water within the ground. Compare grading and French drain disruption before choosing a Durham scope. Trace the surface with your eye from the wet lawn toward the nearest usable lower ground. If the route rises over a hump before it goes downhill again, changing that hump may be more useful than burying pipe. A soft band that follows a hillside poses a different question. [Runwell Durham Drainage Company](/) can help assess the exterior drainage work. To narrow the enquiry, first distinguish a hollow trapped behind a ridge of soil from saturation fed through the ground above the hollow. The distinction affects the work worth pricing and what you should look for on the finished property. ## Read the cross section, not just the view from above Draw the wall and the patio on a piece of paper as if you were cutting a slice through the yard. Put a mark at the lowest point and another at the proposed discharge. This simple sketch exposes a question a plan view hides: is there room to change the surface between those fixed elevations? It does not replace a level survey, but it helps you ask why soil is being added at one end or removed at the other. ## What would change the recommendation? Take two possible observations. In the first, you find a lawn where a patio fixes the upper edge and a bed fixes the lower exit. In the second, you find a cut slope where water emerges along the same contour after each storm. The visible wet area may look similar, but the two findings place the question at different points in the route. Record what you see directly and leave the underground part of the sketch open if you cannot identify it. | Decision | First approach | Alternative to investigate | | --- | --- | --- | | What are we addressing? | A hollow trapped behind a ridge of soil | Saturation fed through the ground above the hollow | | What could the scope involve? | Reshape the high and low points to create a surface path | Intercept the subsurface path with a drained trench | | What would help settle it? | Photograph the initial entry point and the surface immediately beyond it. | Identify remaining unknowns at the receiving end before committing to construction. | ## How a useful phase can be tested Suppose a downspout feeds a strip of lawn already sloping toward the building. A new French drain would collect some water after it enters the ground. Rerouting the roof flow and correcting the approach could keep that water out of the strip in the first place. Agree on the condition to observe after the smaller change. If the ground remains wet from upslope seepage, that finding gives a reason to consider a collector rather than repeating the surface work. ## Follow the decision onto a real layout For example, consider a reverse slope between the lawn and back door. The owner wants to keep runoff moving past the house toward a stable receiving lawn. Establishing the finished ground height at wall openings and paving can change whether a proposal is practical even after the likely cause has been narrowed down. On the drawing, include mature tree roots along the proposed cut as well as the area that gets wet. That feature can determine where equipment goes and what must be protected. A proposal addressing only the most visible symptom deserves a closer question. What happens farther along the route, and where can someone inspect the result later? If filling one depression sends water toward the gate, the observation should be weighed against the original assumption. Compare the timing with the condition in the photograph. A route that works when the receiving ground is dry may perform differently when the same storm has wetted the entire property. ## Set the immovable points first A yard is rarely a blank sheet. A patio threshold, the top of a wall opening and an existing tree root zone can constrain both ends and the middle of a route. Mark the fixed points, then consider the cut or fill needed between them. A grade line that works on paper can be a poor choice if it buries the root flare of a mature tree or raises soil against siding. The estimate should identify which features are protected and where the changed surface ties into existing ground. ## When the surface cannot do it alone If two fixed elevations leave no continuous route, a shallow collector at a low point may be worth comparing. Make sure that decision includes what happens downstream. Replacing a visible puddle with a buried pipe that cannot drain simply makes the limitation harder to see. ## What if the patio must stay exactly where it is? Take a patio that is level with the side door and a rear lawn that falls toward its edge. Raising the soil against the patio might hide the puddle for a few days but reduce clearance at the door. Lowering the far lawn could create a usable surface route only if the ground beyond it can receive water. An underground collector could preserve the patio height, yet its discharge level might be lower than any available outlet. None of those choices can be priced responsibly from patio width alone. A helpful drawing puts the fixed door, patio edge and receiving ground in one cross section. Then ask the contractor to show what would be cut, what would be filled and what would have to pass under existing paving. That drawing turns a debate about favorite products into a comparison of feasible routes. ## Compare the work you would authorize For the first proposal, write down how it deals with a hollow trapped behind a ridge of soil. For the other, ask what finding supports treating saturation fed through the ground above the hollow as the deciding issue. One proposal may include restoration and a maintained outlet; another may stop at a buried connection whose destination is unknown. Those are materially different purchases even when the visible starting point is identical. Before selecting a contractor scope, ask for the observations behind the recommendation and the conditions that could change it. Describe the access route, the surface that must be reinstated and any later landscape work. If another party controls the receiving feature, establish who can approve a change before committing to the part on your land. This keeps a useful private improvement distinct from a connection that may need a different route. ## Questions about this decision ### Can grading and a French drain be combined? They can address different parts of a problem. Ask the proposal to show which flow travels over the surface and which enters the buried collector, plus the receiving area for each. ### What if the yard cannot be lowered any farther? Check thresholds, roots, utilities and the downstream ground. If a workable surface route cannot fit, compare collection at the low point with an alternative alignment. ### What observation would help distinguish a hollow trapped behind a ridge of soil from saturation fed through the ground above the hollow? Bring a wide view of the incoming water and one of the receiving area. Note the date relative to rainfall, irrigation or recent work. In particular, mention a lawn where a patio fixes the upper edge and a bed fixes the lower exit if it matches your property. That detail gives the conversation a specific route to examine. ## Your next step If a cut slope where water emerges along the same contour after each storm describes your situation, start with that detail. Include what you want back from the affected part of the property, such as a usable walkway or ground that can be maintained. Read [Yard Grading for Drainage in Durham, NC](/yard-grading/) for the related work, or [contact Runwell](/contact/) to discuss which checks belong in your estimate. ## Related pages - [Yard Grading for Drainage in Durham, NC](/yard-grading/) - [Runwell Durham Drainage Company](/) - [Discuss your drainage project](/contact/) - [What Can I Do About Runoff Crossing My Yard?](/guide/neighbor-runoff/) - [How Will the Lawn Be Restored After Drainage Work?](/guide/drainage-lawn-restoration/) - [How Do You Choose a Drainage Solution in Durham?](/guide/durham-drainage-guide/) - [What Should Be in a Drainage Estimate?](/guide/drainage-estimate-checklist/) - [Where Can Yard Drainage Water Go in Durham?](/guide/where-drainage-water-can-go/)