Pond dam construction and engineered repair in southwest Missouri
Ozark Pond Builders connects southwest Missouri landowners with licensed local contractors for planned pond dam construction and engineered dam repair. We are a free matching service, not a contractor. In Missouri, dams under 35 feet in height are generally not permitted by the state program, while dams 35 feet and higher require a construction permit prepared by a Missouri registered professional engineer. We frame all dam work as planned and engineered, never as emergency response.
Planned, engineered dam work
A dam is the part of a pond where good engineering matters most. It holds the water, passes storms through the spillway, and protects everything downstream. Ozark Pond Builders connects you with one licensed local contractor for planned dam construction and engineered repair in your county. We are a free matching service. We do not perform the work and we never imply that we do. We frame this work as planned and engineered, never as emergency response.
What this covers
- New pond dam construction as part of a farm pond, fishing pond, or recreational lake.
- Engineered repair of seepage, erosion, burrow damage, or settlement in an existing dam.
- Spillway construction, resizing, or repair so the structure passes large storms with adequate freeboard.
- Embankment rebuilds where a dam has degraded over time.
The Missouri 35 foot rule
Missouri’s Dam and Reservoir Safety Law sets clear height thresholds for non-federal, non-agricultural dams:
- Under 25 feet in height: not regulated by the state dam safety program.
- 25 to 35 feet in height: inventoried but not permitted.
- 35 feet and higher: a construction permit is required, prepared by a Missouri registered professional engineer, plus a safety permit to operate.
Most private farm ponds fall below 35 feet, so they typically do not require a state dam safety permit. The authority is Chapter 236 RSMo and 10 CSR 22, administered by the Missouri DNR Dam and Reservoir Safety Program. Our Missouri pond permit guide explains it in full.
Sound design references
For ponds where the effective dam height is 35 feet or less and the product of storage times effective height is under 3,000, the USDA NRCS Conservation Practice Standard 378 sets design requirements for the dam, spillway, seepage control, freeboard, and a settlement allowance. A good contractor builds to standards like these. Our dam safety and spillways guide covers the principles.
Get matched
Tell us about your dam project. We connect you with one licensed local contractor for planned construction or engineered repair, including, where a site calls for it, a Missouri registered professional engineer. Free for landowners.
Frequently asked questions
When does a pond dam need a permit in Missouri?
Under Missouri's Dam and Reservoir Safety Law, non-federal, non-agricultural dams under 25 feet are not regulated by the state dam safety program, dams 25 to 35 feet are inventoried but not permitted, and dams 35 feet and higher require a construction permit prepared by a Missouri registered professional engineer plus a safety permit to operate. Most private farm ponds fall below 35 feet. See our Missouri pond permit guide.
What is an engineered dam repair?
An engineered repair is planned work that addresses the cause of a dam problem, such as seepage, erosion, an undersized spillway, or settlement, using sound design rather than a quick patch. For taller dams and more complex sites, a Missouri registered professional engineer may be involved. The contractor you are matched with can advise on what your dam needs.
Do you handle emergencies like a dam about to fail?
No. Ozark Pond Builders matches landowners with contractors for planned, engineered dam construction and repair. We do not provide emergency response. If you believe a dam is failing or presents an immediate safety risk, contact local emergency services and the Missouri DNR Dam and Reservoir Safety Program directly.
How is a spillway sized?
A spillway must safely pass the runoff from the pond's watershed during large storms, with enough freeboard so water does not overtop the dam. Sizing depends on the drainage area, soils, and design storm. Our dam safety and spillways guide and our watershed sizing guide explain the principles, and a licensed local contractor designs to your site.
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