Settlement Control

A structure that settles doesn't settle evenly. One section drops while another stays put, and the difference shows up as a dip in pavement, a crack in a slab, or a gap where a bridge deck meets the road. Settlement Control corrects that differential settlement by stabilizing the weak soil beneath it and lifting the structure back toward grade. Engineers, private owners, and public agencies use it on bridges, pavement, and building foundations that have already started to settle unevenly.

Problems Settlement Control Solves

Differential settlement doesn't stop on its own. Here's what it leads to if it's not corrected.

Uneven pavement or slabs that create trip hazards or unsafe driving conditions

A gap or step forming where a bridge deck, approach slab, or building meets the surrounding grade

Cracking in foundations, slabs, or pavement caused by one section settling faster than another

Drainage problems created by low spots where water used to flow evenly

Key Signs You Need Settlement Control

Differential settlement usually shows itself gradually before it becomes a hazard. Watch for these.

A noticeable dip or step where a bridge approach meets the road

Cracks radiating from one section of a slab or pavement while the rest stays intact

Doors or windows that no longer close properly in a building with a settled foundation

Water pooling in a low spot that used to drain evenly

A joint or seam that has visibly separated or become misaligned

One side of a structure sitting noticeably lower than the other

Benefits of Settlement Control

Why agencies and property owners choose Settlement Control over full reconstruction.

Corrects settlement that has already happened, not just soil that might settle later. The injection both densifies the weak soil and lifts the structure above it back toward its original grade in the same process.

Reduces the safety risk of an uneven surface. Correcting a settled bridge approach, slab, or pavement section removes the trip and driving hazard before it causes an incident.

Keeps the structure in use during the work. At State Fair Community College in Missouri, URETEK corrected foundation settlement in just two days with minimal disruption for the building's occupants.

Works fast, even on major infrastructure. URETEK's repairs to the Sault Sainte Marie International Bridge abutments were completed on both sides of the bridge in only two days.

The polymer both stabilizes and lifts in a single mechanism. URETEK 486 Star® expands up to 20 times its original volume once injected, densifying the soil that caused the settlement while applying enough controlled pressure to raise the structure above it.

Why Choose Settlement Control?

Settlement Control is the right call when a structure has already settled unevenly and needs to be corrected and lifted back toward grade, not just strengthened for the future. It's built for bridge approaches and abutments, highway and parking lot pavement, and building foundations that show a visible dip, step, or crack from differential settlement.

It's not the right tool when the soil hasn't settled yet and the goal is preventing future settlement in weak but currently stable ground; Soil Stabilization is the better starting point for that. It also isn't the fit when the issue is seismic risk to soil that could liquefy during an earthquake, which Liquefaction Mitigation addresses directly, or when there's a confirmed open void beneath the structure rather than general settlement, which Void Filling is built to handle.

Settlement Control is often paired with Joint Sealing when the settlement has opened up a joint or crack that also needs to be sealed against water infiltration, since correcting the settlement alone won't stop water from continuing to erode the soil through an open joint.