Massachusetts shares New England's glacial till and fractured bedrock slope conditions, and along I-90 through the Berkshires and I-93's rock cuts, decades of freeze-thaw cycling combined with de-icing salt infiltration have progressively weakened till slopes in ways MassDOT's winter maintenance program inadvertently accelerates even as it keeps the roadway itself safe.
This pattern is consistent with the broader Steep Slope Stability Issues challenges GSI addresses across the state.
GSI anchors Massachusetts soil nail walls past the salt-affected surface till zone into deeper, chemically unaffected material — addressing a degradation pathway unique to heavily salted winter corridors. GSI's soil nailing capability supports this step.
Snowmelt carrying dissolved de-icing salt infiltrates Massachusetts till slopes seasonally — horizontal drains routed to intercept this specific infiltration reduce both the moisture and the chemical loading driving slope weakening. This is one application of GSI's broader Soil Nail Launcher™ expertise.
Salt-affected till that has lost cohesion is prone to borehole collapse during conventional drilling — the Soil Nail Launcher™ installs without depending on till strength that winter maintenance chemistry has already degraded. GSI's horizontal drains experience informs this approach.
This approach is informed by GSI's broader landslide emergency response work across Massachusetts.
Engineered for Massachusetts's conditions. GSI addresses the de-icing salt infiltration pathway specific to Massachusetts's heavily salted winter corridors — a slope degradation mechanism standard repair specifications don't isolate. It's backed by GSI's broader general contractors and asset owners capability.
Design/build delivery. One contract covers design and construction — removing the handoff delays between design and field work.
MassDOT specification compliance. Design and construction records satisfy applicable DOT specifications from first submittal.
GSI's engineers are ready to assess landslide repair conditions at your Massachusetts site.