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Aerial view of the Black River long-reach excavator clearing cattails and silt from a prairie pond
Western SD & NE Wyoming

Pond Dredging & Silt Removal in Western South Dakota

Ponds fill in. Every runoff carries silt off the land around them, cattails close in from the edges, and the water gets shallower, warmer and greener every year. Black River Contracting dredges ponds back to depth across Western South Dakota and Northeast Wyoming, removing silt and muck so the pond holds water again.

We do it with a Cat 324E with a 60-foot long-reach front, working from the bank or the dam crest. The machine stays on firm ground while the bucket reaches out into the pond, so the pond doesn’t have to be drained and nothing gets stuck in the soft bottom.

What we dredge

  • Stock ponds and dugouts that have silted in or closed up with cattails. See stock pond and dugout cleanout.
  • Farm and acreage ponds that have gone shallow, weedy and green.
  • Detention and retention ponds that need their storage back.
  • Spillways and inlets that have filled in and no longer carry water where it should go.

Signs a pond needs dredging

  • It goes dry earlier in the summer than it used to.
  • Cattails and weeds are taking over the shallow edges.
  • The water is warm, green or smells in summer.
  • The inlet has built up a delta of silt, or the spillway has filled in.

How a dredging job goes

  1. We look at the pond with you: where the machine can sit on firm ground, how far it has to reach, and where the spoil goes.
  2. We call in utility locates and plan access for the machine.
  3. We dig from the bank, working around the pond and pulling silt and muck to the edge.
  4. We place the spoil where you want it, spread, built into the dam or stockpiled to dry.
  5. We shape the edges so the banks hold and cattle can drink without breaking them down.

Common questions

How much does it cost to dredge a pond?
It depends on how much silt there is, how far the machine can reach from firm ground, where the spoil goes, how wet the silt is, and how far we travel. We look at the pond with you and quote that job; low water usually means a faster, cheaper cleanout.
Do you have to drain the pond first?
No. The long-reach excavator works from the bank or the dam and reaches into standing water. Less water means a faster job and drier spoil, but a full pond isn't a reason to wait.
What happens to the silt and muck?
It goes where you want it: spread on the uplands, built into a low dam crest, or stockpiled to dry and spread later. Pond silt is usually good soil, so it's worth putting somewhere useful.
When is the best time to dredge a pond?
When the water is low: late summer, fall or a dry year. The silt is drier, it's easier to place, and the bucket can reach the bottom.
Do I need a permit to clean out a pond?
Cleaning out an existing pond to its original size usually doesn't need one. Making a pond bigger or raising the dam can, through DANR's Water Rights Program in South Dakota or the State Engineer's Office in Wyoming. Check with them first.

Learn more about Dam Cleanout & Repair

Ready to break ground?

Every site is different. We'll walk it with you and give you a straight answer, with a clear scope and an honest estimate.

Request a quote(605) 600-6045