Deep Well Dewatering
A deep well system is a form of construction dewatering used to control groundwater in deep excavations and high-permeability soil conditions. It is commonly implemented where excavation depths exceed the effective limits of wellpoint systems or where significant groundwater inflow must be managed.
Well Point Dewatering
A wellpoint system is a widely used method of construction dewatering designed to control groundwater in shallow to moderate depth excavations. It is particularly effective in granular soils such as sand and silt, where lowering the groundwater table is essential to maintain stable and dry working conditions.
Groundwater Treatment
Groundwater treatment is a critical component of construction dewatering, ensuring that all discharged water meets environmental and regulatory requirements. Dewatering operations often produce water containing sediment, turbidity, hydrocarbons, or other contaminants that must be properly treated prior to discharge to storm systems,waterways, or municipal connections
Micropiles Minicaissons
A micropile is a small diameter, high strength deep foundation element used to transfer structural loads to a deeper, more competent soil stratum below. A minicaisson is a small diameter, high strength deep foundation element used to transfer structural loads to a deeper bedrock stratum.
Support of Excavation (SOE)
Support of Excavation (SOE) can be used as temporary support as well as permanent support. The elements of an SOE system can vary greatly based on the intended use,ground conditions, existing site conditions and specific site restraints.
Soil Nailing
A soil nail wall is a form of SOE and can be used as temporary support as well as permanent support. A soil nail wall is a top-down constructed system that begins with an initial 5’-0”excavation. This excavation is shotcreted and then soil nails are installed, cured and tested. This process will repeat until subgrade elevation is reached.
CFA and DDP
A CFA pile, also known as an Auger Cast Pile is a widely used pile type that can achieve high axial, tension and lateral loads. A DDP pile, also known as Full Displacement Pile (FDP) is a widely used pile type that can achieve high axial, tension and lateral loads.
Secant Walls and Caissons
Secant walls are a type of Support of Excavation (SOE) system consisting of reinforced concrete drilled shafts that overlap one another to form a continuous structural wall. This system is commonly utilized where groundwater control is required and where a rigid earth retention system is necessary to withstand significant surcharge loads adjacent to the excavation.
Tieback and Tiedown Anchors
Tieback and Tiedown anchors consist of either high strength strand tendons or high strength thread bar components, with an unbonded zone and a bonded zone, installed in a grouted hole. These anchors can achieve high loads based on the ground conditions and if bedrock is present. Both types of anchors can be used in a temporary or permanent application.
Permitting
Navigating dewatering regulations in New York and New Jersey can be complex, with overlapping requirements from multiple agencies and strict compliance standards. Our team provides end-to-end dewatering permitting and engineering services, combining regulatory expertise with in-house engineering capabilities, to keep your project compliant, efficient, and on schedule.
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