Lake Excavation and Large Pond Construction
- When a Pond Is Not Big Enough
Bigger water is a different job. Once you get past about an acre the dam becomes the main engineering problem, the spillway has to handle serious runoff, and the volume of dirt goes up faster than the surface area does.
We build lakes and large ponds up to several acres across Central Texas. A two acre lake starts around $50,000.
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When a Pond Becomes a Lake
There is no official line, but practically speaking things change around the one to two acre mark. A two acre lake at eight foot of center depth is roughly 21,000 cubic yards of dirt, more than twice a one acre pond, and it impounds enough water that the dam stops being a berm and starts being a structure.
The economics improve as you go up. Cost per cubic yard drops from about $7.80 on a quarter acre to $2.36 at two acres, because mobilization gets spread over far more dirt. If you have the watershed and the ground for it, bigger water is the better value per gallon.
The Dam Is the Whole Job
On a small stock tank a marginal dam might hold anyway. On a lake it will not.
We strip the dam footprint down to solid ground and key the dam into it, so water cannot travel underneath along the old topsoil layer. Then we build up in compacted lifts rather than pushing material into place in one go. Every lift gets packed before the next one goes on.
The spillway gets sized for real runoff, not average rain. Central Texas gets gully washers, and a spillway that cannot pass the flow is how dams fail. We would rather cut a wider spillway than explain a washout.
Watershed and Whether It Will Fill
The bigger the water, the more ground you need feeding it. This is the question we ask first on any lake project, and occasionally the answer is that the site will support a nice pond but not the lake somebody had in mind.
We would rather tell you that up front than build a big empty hole. If the watershed is marginal, sometimes the answer is a smaller, deeper build that stays full instead of a wide shallow one that never does.
Permitting on Bigger Water
Ordinary ranch ponds sit well inside the Texas exemption that allows impounding up to 200 acre feet for domestic and livestock use without a state water right. Lakes can start to approach thresholds, and a taller dam can fall under state dam safety review.
Floodplain work and sites in the Edwards Aquifer recharge zone bring their own requirements, and counties layer on stormwater and floodplain rules. On a project of this size it is worth confirming with the county before we start. We will tell you where we think you stand.
For the full picture on pricing, see what a pond costs to build in Texas.
What a Pond Costs Around Austin
| Pond Size | Starting Price | Build Time |
|---|---|---|
| 1/4 acre | from $14,000 | 2 to 3 days |
| 1/2 acre | from $23,000 | 3 to 4 days |
| 3/4 acre | from $28,500 | 4 to 5 days |
| 1 acre | from $33,500 | 5 to 6 days |
| 1 1/4 acre | from $38,000 | 6 to 7 days |
| 1 1/2 acre | from $42,500 | 7 to 8 days |
| 1 3/4 acre | from $46,500 | 8 to 9 days |
| 2 acre | from $50,000 | 9 to 10 days |
Prices and times above are based on 8 foot of depth in the center with a 4:1 bank. Build deeper and it takes longer and costs more. Use the calculator below to run your own numbers.
Rock is the big variable. If we hit granite or solid limestone we have to bring a hammer out, and that gets billed by the day. On a lot of places we can move the pond and miss the rock altogether. That is one of the main reasons we come walk your property before quoting instead of pricing off an aerial photo.
Expansions, cleanouts and rehab work get quoted on equipment day rates rather than by size. Give us a call and we will talk through what your pond needs.
Want the full breakdown of what a pond costs and why it varies across the state? Read how much it costs to build a pond in Texas.
Pond Cost Calculator
Slide in the size, depth and bank slope you have in mind and see roughly how much dirt has to move and what that runs. Works for anything up to 2 acres.
See our full Texas pond cost guide for what drives the price and how the ground changes it.
3:1 is the steepest bank and moves the least dirt. 5:1 is a gentle wade-in bank, easier on cattle and safer around kids, but it takes more digging to get the same water.
- Average depth0 ft
- Water it holds0
- Rate per yard$0
This is an estimator, not a quote. It figures the dirt you would move for a bowl shaped pond at the size, depth and bank slope you picked. What you actually pay depends on whether we hit rock, what shape the ground is in, how far we have to haul spoil, and whether the spot needs clearing first. Rock is the big one. If we run into granite or solid limestone we have to bring a hammer out and that gets billed by the day. Call us and we will come walk it.
The calculator treats your pond as a bowl. It takes the surface size you pick, figures the radius, pulls the banks in at the slope you chose, and works out the volume between the top edge and the bottom. That gives the cubic yards of dirt that have to come out, which is the biggest single thing driving what a pond costs.
Bigger ponds cost less per yard. Getting equipment out to your place, setting up and tearing down costs about the same whether we move 2,000 yards or 20,000. So the rate per cubic yard drops as the job gets bigger. A small pond runs toward the top of our rate, and a one acre job comes in around a third of that per yard. The calculator does that math for you and shows the rate it landed on.
Why bank slope changes the price. A 3:1 bank drops one foot for every three feet across. A 5:1 drops one foot for every five. The gentler you make it, the more dirt has to move to get the same depth, but you get a safer wade-in edge for cattle and a shoreline that will not slough off on you. Most ranch ponds around here end up 3:1 or 4:1.
Why depth matters more than it looks. A shallow pond warms up, turns green and can go dry in a bad Central Texas summer. We build to 8 foot in the center as a standard for that reason. Every extra foot of depth adds dirt across the whole footprint, not just the middle.
What the calculator cannot see. Rock is the big unknown. Granite and solid limestone need a hammer instead of a bucket and that gets billed by the day, so a rock site can run well past the estimate. Clearing, haul distance, equipment access and how wet the ground is all move the number too. Use this to get in the ballpark, then call us and we will come walk it and give you a real one.
What Our Customers Say
★★★★★
“This is the second time using this company. And always quick responses and follow through! Their quality of work is the best in the industry. I’ve reached out to other companies before and usually slow to respond and set a date to come look at the property for a project and no show. That is something you won’t have to worry about by going with Texas Grading.”
Sean Chandler
★★★★★
“Worked with me to get my pond exactly how I wanted it. Taylor communicated well and was willing to cut me a fair deal when things weren’t exactly as expected. Jonathon is an ace with the dozer. The man can move some dirt like icing on a cake. Well done gentlemen!”
Dennis Pacl
★★★★★
“What a great experience. This company was prompt, and right on budget. They made a pond/tank for me on my ranch. The owner and his team were very professional.”
Glenn Gonzales
★★★★★
“These guys are the best! Hands down, if you need any land clearing or ponds done on your property, do yourself a favor and call Taylor!”
David Williams
Frequently Asked Questions
How much does it cost to build a lake in Texas?
A one acre lake starts at $33,500 and two acres at $50,000, both at eight foot of center depth on a 4:1 bank. Going deeper adds cost across the whole footprint. Rock is the biggest variable, since granite and solid limestone need hammer work billed by the day.
How long does it take to build a two acre lake?
Roughly nine to ten days of equipment time at standard depth, assuming reasonable ground and no significant rock. Deeper builds and rock sites take longer.
How much watershed do I need to fill a lake?
More than most people expect, and it varies with rainfall and soil. This is the first thing we assess. A lake with too little drainage feeding it will never stay full no matter how well it is built, and we would rather redesign than build you a disappointment.
Do I need an engineer or a permit for a lake?
Often not, but it depends on the dam height and how much water you are impounding. Texas exempts up to 200 acre feet for domestic and livestock use. Taller dams can trigger state dam safety review. We will flag it if your project looks like it is approaching a threshold.
Can you stock it with fish?
We build the water. Stocking is handled by fish suppliers, and there are good ones in Central Texas. Worth planning the depth and structure for fish before we dig if that is the goal, since it is much cheaper to shape habitat during construction than to add it later.