Home    News    Services    Offices/Contacts    Career    Client Page     Horizontal Directional Drilling Tunneling Instrumentation Railroad Service Horizontal Directional Drilling HDD allows conduit and force mains to be installed below obstructions, under waterways, and through congestion – in any area where shallow access is impractical, inconvenient, or impossible. Shannon & Wilson has used HDD to avoid, yet still traverse, contaminated soil or groundwater, streams or waterways, wetlands and other sensitive areas, highly trafficked streets or highways, problem soils and developed land.
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