A pond on an acreage outside Wichita is mostly a dirt job: dig the basin, build the bank or dam out of what comes out of it, and give the water a safe way out in a storm. The digging is the easy part to picture. What decides whether a pond holds water, stays legal and doesn't wash out is settled before the machine shows up: where it sits, what the soil is, how it fills, and whether Kansas wants a permit for it.
Does a pond need a state permit in Kansas?
Kansas regulates dams and anything built across a stream, not holes in the ground. Under K.S.A. 82a-301, you need written consent from the chief engineer of the Kansas Department of Agriculture's Division of Water Resources before you build or change a dam, or put a "water obstruction" in a designated stream. The definitions are what matter for a small pond:
| Term in the statute | What it means |
|---|---|
| Dam | A barrier that holds back water and is 25 feet or taller, or 6 feet or taller with 50 acre-feet or more stored at the top of the emergency spillway |
| Designated stream (zone one) | Any natural or man-made channel draining one square mile or more. Sedgwick, Harvey and Sumner counties are all in zone one, so around Wichita the threshold is one square mile |
| Exempt obstruction | Not a dam by the definition above, not inside a city, every part of it and its water more than 300 feet from every property line, and draining five square miles or less |
So a dug-out pond that doesn't sit in a draw is usually outside the statute, while a pond made by damming a draw that drains a square mile or more needs a look first, and inside city limits the exemption doesn't apply. The statute also lets the chief engineer require a permit for any obstruction when life or property is at stake. If your pond will sit in a draw or near a property line, call the Division of Water Resources before you dig, not after.
The county has its own check. Sedgwick County requires a floodplain development permit for filling, grading or excavating in a mapped floodplain (see permits and Kansas 811), and the spoil from a pond has to go somewhere. And every pond dig starts with a Kansas 811 locate, two full working days ahead, and 811 doesn't mark private lines such as power run out to a barn or shop, so those have to be found separately.
Filling it: runoff, a stream or your well
Most farm ponds fill from runoff. If you're thinking of filling or topping up a pond from a well, check Kansas water law first. The water appropriation act (K.S.A. 82a-701) defines domestic use as water for the household, for livestock and farm animals, and for irrigating up to two acres of gardens, orchards and lawns. A pond kept for looks or fishing isn't on that list, so before you count on a well to fill one, ask the Division of Water Resources whether you need a water right. A pond that waters cattle is a different conversation from a pond beside the house.
Tell us about the dig
(316) 869-0053Picking the spot and the soil
The Oklahoma Department of Wildlife Conservation's pond construction guide, written for the same prairie country just south of us, starts by sending people to their local NRCS office, which gives free help planning and designing a farm pond. Its rules of thumb:
- Drainage area. In Oklahoma, a pond fed by runoff should have about 5 acres of drainage in the wetter east to 20 acres in the drier west for each surface acre of water. Too little and it won't fill; too much and fish and nutrients wash out in every big rain. NRCS can size it to your land.
- Don't dam the creek. It advises against damming creeks or large, deep draws unless extra water can easily be diverted around the pond.
- Clay holds water. Pick a site with clay or clay loam soil. If the site doesn't have enough clay, it has to be hauled in to line the bottom and build the dam's core. Much of Sedgwick County is heavy clay, while the river valleys are sandier, and sand is where a pond leaks. The free USDA Web Soil Survey shows what's mapped under your acreage.
How a pond is built
The same guide gives the dimensions that keep a dam standing and a fishing pond healthy:
| Part | Guideline (Oklahoma Dept. of Wildlife Conservation) |
|---|---|
| Size and depth | At least half a surface acre for a fishing pond, and at least 10 feet deep over a quarter of it, so there's water in dry years |
| Dam | At least 10 feet wide across the top, with a 3:1 slope on the water side and 2:1 on the back |
| Banks | About 3:1 down to 3 or 4 feet deep, which holds back cattails and other rooted weeds |
| Spillway | As wide and flat as possible, so storm water goes over it shallow |
| Drain | A bottom drainpipe, so the pond can be drawn down or emptied later |
| After the dig | Seed the basin with a quick crop like rye or wheat while it fills, get sod-forming grass on the banks, keep trees off the dam and cattle off the shoreline |
On the machine side, that's an excavator or dozer for the basin, compaction of the dam in layers over its clay core, and the spoil balanced so the dirt dug from the basin builds the bank instead of being trucked away. A silted-in pond is the same job in reverse: the muck has to be dug out, dried and spread or hauled, which is covered under dirt work and fill dirt.
What digging a pond costs
These are national figures, not Wichita quotes. HomeGuide's excavation cost guide (2026) puts the digging alone for a pond at $300 to $3,200 on average, and a large fishing pond at $2,000 to $5,000 or more per acre, not counting design or a liner. Its general rate is $2.50 to $15 per cubic yard. To see the scale, a basin 100 feet by 100 feet, averaging 6 feet deep, is about 2,200 cubic yards of dirt (100 × 100 × 6 ÷ 27), or roughly $5,500 to $33,000 at those per-yard rates. Where a job lands depends on the soil (sticky clay is slow, rock is far slower), whether clay has to be hauled in for a liner or core, how far the spoil moves, and whether the site is wet when the machine arrives. More on reading a bid is on excavation cost in Wichita.
Common questions
Do I need a permit to build a pond in Sedgwick County?
Often not from the state, if it is dug out rather than dammed. Kansas requires the Division of Water Resources' consent for a dam (25 ft tall, or 6 ft with 50 acre-feet stored) or for an obstruction in a stream draining one square mile or more, which is the threshold in Sedgwick County. Work in a mapped floodplain needs a county floodplain permit, and every dig needs a Kansas 811 locate.
How deep should a pond be in Kansas?
For a fishing pond, the Oklahoma Department of Wildlife Conservation's guide for the same Plains climate says at least half a surface acre and at least 10 feet deep over a quarter of it, so water and fish make it through dry years. Your local NRCS office can size it to your drainage area for free.
Can I fill my pond from my well in Kansas?
Check first. Kansas law defines domestic use of water as household use, watering livestock and farm animals, and irrigating up to two acres of gardens, orchards and lawns. A pond for looks or fishing isn't on that list, so ask the Kansas Division of Water Resources whether you need a water right before filling one from a well.