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Newark, Delaware
GTA provides geotechnical engineering services in Newark, Delaware, supporting infrastructure, institutional, and commercial development projects across New Castle County. Our team is experienced in subsurface investigation and redevelopment sites throughout Northern Delaware.
111 Ruthar Drive
Newark, DE 19711
Phone: 302-326-2100
Office Contact
Services List
- Site work – Structural Fill Testing, Subgrade Soil, Utility Backfill Operations, and soil stabilization
- Retaining Wall Inspection, Testing and Certifications
- Asphalt Inspections and evaluation of pavement damage
- Demucking inspections for soft soils and unsuitable subsurface conditions common in Central Florida sites
- Firestop and Fire Penetrations (firestopping inspection)
- Foundations – Soil Bearing Capacity of Footings (foundation inspection)
- Laboratory Services, including soil lab testing
- Concrete Sampling, Slump Test (concrete inspection, compressive strength testing)
- Threshold Inspections with certified special inspectors
- Field-welded and Bolted Structures (structural steel inspection, bolting)
- Phase I and II environmental site assessments (phase 1 environmental site assessment, phase 2 environmental site assessment)
- Site-Specific Risk Assessments
- Soil site investigation and subsurface exploration
- Contaminated soil remediation and groundwater monitoring
- Brownfield redevelopment
- Consumptive Use Permits
- Dewatering Permits
- Spill, Prevention, Control, and Countermeasures (SPCC) Plans
- Spill/Release Emergency/Interim Source Removal
- Soils Management Plans
- Underground Storage Tank (UST) Removal and Closure Sampling, including underground storage tank removal
- Industrial Discharge Monitoring
- Stormwater Pollution Prevention Plans (SWPPP) and stormwater monitoring & NPDES inspections
- Environmental impact studies and support from experienced environmental consulting firms
- Geotechnical Feasibility Studies as part of geotechnical site investigation
- Subsurface exploration and soil investigation
- Shallow and Deep Foundation Analysis and Design for apartment building, high rise building, and parking lot developments
- Retaining Wall Design/Recommendations
- Slope stability analysis and design
- Ground Improvement Design/Recommendations, including soil stabilization
- Dewatering Permits
- Subsidence Mitigation and sinkhole remediation
- Karst Geology Analysis
- Groundwater Control Design for high water table conditions
- Geotechnical Instrumentation and Monitoring
- Geotechnical Laboratory Testing, including soil testing
- Wetland delineation and wetland permitting
- Wetland mitigation design and monitoring
- Threatened and Endangered Species Surveys, Assessment, and Permitting, including endangered species and rare species surveys
- Biological and Ecological Assessments / environmental impact studies
- Tree Survey and Condition Assessments, including tree survey, tree inventory, and tree condition assessment (ISA Certified Arborist On Staff)
- Wetland Restoration and Enhancement, including wetland mitigation and restoration and stream mitigation
Featured Projects
Paulsboro Marine Terminal Phase 2
Gloucester, NJ
Dover Behavioral Health Center Additions
Kent County, DE
I-495 Emergency Bridge Repairs
Wilmington, DE
Sportika
Monmouth County, NJ
The Residences at Mid-Town Park
Wilmington, DE
Wilmington Country Club Water Impoundment Structure
Wilmington, DE
Chemours Discovery Hub
Newark, DE
Indian River Inlet Bridge
Sussex County, DE