On the Yahara below Lake Kegonsa, built on what the meltwater left.
Stoughton sits on a buried river valley. Before the last glacier, a deep valley ran south through here; the ice filled it with sand, gravel and boulders carried by meltwater, and the Yahara now runs across the top of that fill on its way out of Lake Kegonsa. Meltwater-sorted ground behaves differently from the jumbled moraine till a few miles west: it is looser, it drains fast, and water moves through it rather than over it.

Outwash, not till. The material here was sorted by running water into layers of sand and gravel. That makes it loose and fast-draining, and it means what holds firm in one layer may sit on something looser underneath.
Water moves underground, not across. On sandy outwash, surface water disappears quickly. That looks like good drainage, and mostly it is, but it also means water is travelling through the ground beneath patios and walls rather than running off the top.
An older housing stock. Much of Stoughton is long-established, so a lot of the walks, steps and walls we are asked about were built decades ago and have had time to show what they were built on.
The Yahara corridor. Properties near the river sit low and wet compared with the rest of the city, and that ground behaves nothing like the sandy terraces above it.
Retaining wall repair. Walls on loose outwash that have moved, where the honest first question is repair or rebuild.
Paver patio construction. Rebuilding patios and walks that have settled unevenly, on a base built to stay put this time.
Outdoor step construction. Steps at older properties that have dropped or gone uneven at the risers.
Lawn fertilization & treatment. Sandy ground holds less of what you put on it, so timing and rate matter more here than volume.
Downspout drainage extensions. Along the river corridor and the low ground, where roof water needs to be carried well clear of the house.


Ground Conditions
Outwash, not till. The material here was sorted by running water into layers of sand and gravel. That makes it loose and fast-draining, and it means what holds firm in one layer may sit on something looser underneath.
Water moves underground, not across. On sandy outwash, surface water disappears quickly. That looks like good drainage, and mostly it is, but it also means water is travelling through the ground beneath patios and walls rather than running off the top.
An older housing stock. Much of Stoughton is long-established, so a lot of the walks, steps and walls we are asked about were built decades ago and have had time to show what they were built on.
The Yahara corridor. Properties near the river sit low and wet compared with the rest of the city, and that ground behaves nothing like the sandy terraces above it.
Retaining wall repair. Walls on loose outwash that have moved, where the honest first question is repair or rebuild.
Paver patio construction. Rebuilding patios and walks that have settled unevenly, on a base built to stay put this time.
Outdoor step construction. Steps at older properties that have dropped or gone uneven at the risers.
Lawn fertilization & treatment. Sandy ground holds less of what you put on it, so timing and rate matter more here than volume.
Downspout drainage extensions. Along the river corridor and the low ground, where roof water needs to be carried well clear of the house.

Outwash, not till. The material here was sorted by running water into layers of sand and gravel. That makes it loose and fast-draining, and it means what holds firm in one layer may sit on something looser underneath.
Water moves underground, not across. On sandy outwash, surface water disappears quickly. That looks like good drainage, and mostly it is, but it also means water is travelling through the ground beneath patios and walls rather than running off the top.
An older housing stock. Much of Stoughton is long-established, so a lot of the walks, steps and walls we are asked about were built decades ago and have had time to show what they were built on.
The Yahara corridor. Properties near the river sit low and wet compared with the rest of the city, and that ground behaves nothing like the sandy terraces above it.
Retaining wall repair. Walls on loose outwash that have moved, where the honest first question is repair or rebuild.
Paver patio construction. Rebuilding patios and walks that have settled unevenly, on a base built to stay put this time.
Outdoor step construction. Steps at older properties that have dropped or gone uneven at the risers.
Lawn fertilization & treatment. Sandy ground holds less of what you put on it, so timing and rate matter more here than volume.
Downspout drainage extensions. Along the river corridor and the low ground, where roof water needs to be carried well clear of the house.
Top Services for Stoughton

Fixing damaged or failing retaining walls.

Building a patio using individual pavers (stone/concrete blocks).

Building steps for outdoor areas, usually stone or concrete.

Applying fertilizer/treatments to grow a healthier lawn.

Extending gutter downspouts to move water further from the house.
A patio or walk that was fine for fifteen years starts to dip in one area. Nothing changed above ground. No tree roots, no obvious cause.
On outwash the usual cause is underneath. Sand and gravel compact well, but water moving through them carries the fine material with it over time. Remove enough fines from one part of a base and the layer above loses support and drops, while the section next to it stays exactly where it was. That is why the settling is uneven rather than general, and why it often shows up as one low corner rather than a whole surface sinking evenly.
This is a slow problem, which is why it tends to surface on older work. It is also why rebuilding on the original base usually buys only a few years.
How we build: The fix is a base built to resist that movement rather than one that simply fills the hole: excavate to undisturbed material, build back in compacted lifts with properly graded aggregate, and give water a deliberate route so it is not finding its own path through the base. On this ground, relaying pavers over the old base is a repair with a short life.



If something has moved, the useful question is what is beneath it, not what is on top. Matt will walk it with you and tell you honestly whether it is a repair or a rebuild. Call Madison Green Team at (608) 573-8889 or request a free quote online.
Call 608-573-8889 or use our contact form to tell us about your project.
We assess your property, discuss your needs, and provide a detailed design or service plan.
Our team completes installation or maintenance, keeping your landscape beautiful and functional.
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