Can My Neighbor Drain Water Onto My Property in Texas?
Not if they divert or hold back the natural flow of water and it damages your property. Texas Water Code section 11.086 says no person may divert or impound the natural flow of surface waters. The ban covers doing that in a way that damages another’s property by the overflow. The Texas State Law Library says owners could be held responsible for damage from a diversion of surface water.
This guide is general information, not legal advice. A dispute goes to a Texas real estate attorney. Our part is the ground on your side of the line, where we move water along its natural path. Our page on yard and property drainage work shows how we do it with ditches, swales, culverts, grading and pads.
What does Texas Water Code 11.086 say?
Subsection (a) holds the main rule. It opens, “No person may divert or impound the natural flow of surface waters in this state.” The same sentence bars letting such a diversion or impounding continue. Then come the key words, “in a manner that damages the property of another by the overflow.”
Subsection (b) is about a person whose property is hurt by that kind of overflow. That person “has remedies at law and in equity and may recover damages occasioned by the overflow.” What those remedies mean for one property is for an attorney to answer.
Subsection (c) says the ban does not affect levees and other flood control work on rivers, creeks and streams. But it does not authorize a canal or ditch that obstructs natural drainage. The kinds it names are a river, creek, bayou, gully, slough, ditch “or other well-defined natural drainage.”
Subsection (d) deals with gullies or sloughs cut into a river or creek bank. The owner there “may fill the mouth of the gullies or sloughs up to the height of the adjoining banks.” The current wording dates from a 1977 amendment.
What counts as diverting the natural flow?
In everyday words, to divert water is to turn it off the path it would take on its own. To impound water is to hold it back, the way a dam or a berm does. How a court reads those words for one property is a question for your attorney.
The Texas State Law Library explains the idea in plain terms. When owners change their land, it can sometimes change the natural flow of surface water. A change in the natural flow could cause water damage to a neighbor’s property. The library adds that it cannot tell you what the law means for your situation.
Jefferson County Drainage District No. 6, known as DD6, says Mother Nature designs and builds watersheds. It says they are largely set by the lay of the land. DD6 also calls Jefferson County pancake flat. On ground that flat, a little fill can change where water goes.
The statute speaks of surface waters. An AgriLife Extension guide to Texas water law describes one kind, called diffused surface water. It is “also known as storm runoff or rain or snow,” the guide says. That is the rain that sheets across yards and fields after a storm.
The guide says the key difference between the two is whether a defined watercourse exists. Under Texas case law, that takes bed and banks, a current, and a permanent source and supply. The guide tells landowners to think hard about whether runoff on their land is truly diffused surface water. That call belongs with your attorney, too.
Does the law cover rain running off a neighbor’s new pad or yard?
It can, if the change diverts or impounds the natural flow and the overflow damages your property. Say a neighbor fills a low spot and builds a pad on it. Rain that used to sit there may now run toward your yard. Whether that crosses the line in the statute is a question for a Texas real estate attorney.
Not every wet yard traces back to the lot next door. DD6 makes this point about subdivisions. When flooding comes from rising water out of the banks, not local sheet flow, it almost certainly starts upstream. A bayou out of its banks is a different problem from water running off a neighbor’s pad.
A flood map does not tell the whole story, either. DD6 says flooding does occur outside FEMA-mapped floodplains. Some flood hazards simply are not mapped, and DD6 points to ponding and overland sheet flow.
The ground plays a part, too. The Beaumont soil series is mapped on the Gulf Coast Prairie of Texas east of the Trinity River. Beaumont clay runs 42 to 60 percent clay, and it is poorly drained.
Water moves through that clay very slowly. NOAA’s normal year at Port Arthur brings 62.13 inches of rain, with August the wettest month. Standing water and fresh mud lines after a storm show where the water comes from and where it stops. Photos with dates help anyone who looks at the problem later.
What can you fix with dirt work on your own land?
A lot, as long as the work stays on your side and keeps water on its natural path. We cut ditches with real fall and shape swales around a house pad. We regrade low spots with grading and leveling work. Where ground sits too low, pads built up with fill lift a home site out of the wet.
The same statute applies to every person, you included. So a fix on your side should carry water along its natural path to a place that can take it. A pad or berm that turns water onto another lot raises the same question as the neighbor’s pad. We shape and crown each pad so water runs off the way the land falls.
Drives matter, too. A drive built across a ditch with no culvert under it can hold water back like a small dam. A culvert set in that ditch lets the water keep moving along its path.
When we come out, we look at where water comes onto your land and where it can leave. We check how much fall the ground has from one end to the other. Then we tell you what dirt work on your side can do.
| The problem | What the statute’s words say | What dirt work on your side can do |
|---|---|---|
| Runoff from a new pad or fill next door | No diverting or impounding the natural flow in a way that damages another’s property | A swale or ditch that carries the water along its natural path |
| A new ditch across a slough or bayou | No authority for a ditch that obstructs natural drainage | Ditches on your land kept open and draining |
| Rain standing on your own flat lot | The words are about diverting or impounding, so ask what changed | A low spot regraded or built up with fill |
Where the property line sits is a question for a surveyor, and a dispute goes to an attorney. We stick to the dirt on your side. There, we cut a path that carries the water where it wants to go.
When do county or drainage district rules come in?
Local rules can come in when land gets built up or paved. In DD6’s service area, its 2025 rules set a net-zero runoff policy. That covers work adding more than 0.25 acres of impervious surface. That means hard cover, the kind rain cannot soak into.
DD6 also reviews new projects planned in its service area. If the review finds a project would harm the areas around it, the plans must include detention. These rules apply in DD6’s service area only.
Outside DD6, ask before a pad gets built up or a ditch gets filled. Inside city limits, start with the city. Outside them, start with your county precinct or your drainage district. If the water starts at a road ditch or a culvert under a road, ask whoever maintains that road.
Our permit guide for clearing land in Texas covers the clearing side. Once the rules are clear, we cut the ditch to fit them. Our page on driveway culverts and ditches shows that work.
We are based in Buna and do drainage work across Southeast Texas, including Bridge City, Orange, Vidor and Beaumont. The best time for us to look is right after a rain. Give us a call or ask for a free on-site estimate, and we will come look at your ground.