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image of gap between concrete slab floor and wall, business card for scale, during concrete floor slab lifting project

Case Study Concrete Slab Floor Lifting for PA Middle School

Problem A concrete classroom floor at a Pennsylvania middle school had settled significantly over time. The difference in elevation was noticeable, with a clear drop when walking from one side…

image of polyurethane filling voids in between the stones that make up the dam during dam sealing and stabilization project

Case Study: Leak Sealing and Stabilization of a Historic PA Dam

Problem A natural spring dam in a Pennsylvania township was experiencing significant water infiltration through the flagstones that made up its structure. Over time, the constant flow of water eroded…

trenching with siderails and workers inside during a sinkhole stabilization project

Case Study: Congressional Court Sinkhole Stabilization

Problem In a Pennsylvania municipality, persistent geological challenges had created an environment prone to recurring sinkholes and demanded a more sustainable solution. The local geology contributed to ongoing subsurface instability…

slope next to roadway stabilization project

Case Study: Slope and Roadway Stabilization

Problem A roadway and the nearby slope was experiencing sinking and instability due to a combination of lateral loads, roadway vibrations, and natural erosion from rainwater runoff. The compromised slope…

Case Study: Pennsylvania Culvert Stabilization and Void Fill

Problem A concrete culvert in Pennsylvania had a significant void beneath it, posing structural risk and preventing necessary resurfacing work. The void was exacerbated by water infiltration that was continually…

Basement Wall Sealing and Soil Stabilization with Polyurethane

Problem: In Pennsylvania, a homeowner was experiencing water leaks at the bottom of their basement walls. These leaks posed a risk of mold and mildew growth and caused soil loss…

New Holland Sinkhole Stabilization by USG with Terrathane Polyurethane

USG Stabilizes a Sinkhole and Seepage Tank in Pennsylvania

Pennsylvania is one of the most active states in the US for sinkhole activity. And the old adage “when it rains, it pours” perfectly applies here in regards to potential damage that may…

Innovative Soil Stabilization: How Polyurethane Injection Prevented Delays in a Maryland Housing Complex

Problem: A Maryland housing complex under construction was experiencing significant issues with unstable soils and recurring sinkhole activity along a 150-foot stretch of sanitary sewer. Ground Penetrating Radar (GPR) and…

USG Commercial Floor Leveling Chemical Grout Services

A Look Into USG’s Chemical Grout Services

In the realm of infrastructure maintenance and rehabilitation, chemical grouting emerges as a fundamental technique for fortifying and stabilizing structures. This innovative process involves the injection of specialized materials into…

Case Study: Sinkhole Remediation in Chambersburg, Pennsylvania

The Problem: In Chambersburg, Pennsylvania, a residential property faced a critical issue – the presence of sinkholes, particularly one adjacent to a playground area. Traditional sinkhole fill methods had been…

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