Helenschmidt Geotechnical, Inc.

Comprehensive subsurface explorations and field investigations to characterize soil, bedrock, and groundwater conditions.

• Subsurface Exploration & Sampling

  Advancing borings and collecting soil samples to map geological profiles.

• Cone Penetrometer (CPT) Soundings

  High-resolution continuous profiling of soil stratigraphy and shear wave velocity testing.

• In-house Laboratory Testing

  Laboratory analysis of near-surface soils, including moisture, density, gradation, consolidation, and corrosivity testing.

Engineering evaluations and calculations to support foundation design, earthwork, and seismic safety.

• Seismic Analysis & Retrofit

  Evaluating dynamic site response, liquefaction potential, and lateral spread hazards.

• Slope Stability Analysis

  Quantitative assessment of slope safety and landslide hazards on hillside and coastal bluff properties.

Design of earth retention systems, shoring systems, and structural walls to support excavations and stabilize slopes.

• Soil Nail Walls

  Designing and monitoring soil nail installations for excavation support and stabilization.

• Seawall Design & Construction

  Coastal engineering solutions and design of protective seawall structures.

Preparation of civil construction drawings, plans, and permit processing for slope repair and landslide mitigation.

• Landslide Investigation & Repair

  Investigating slope failures and developing engineered remediation plans.

• Foundation Repair Design

  Developing structural solutions for settlement mitigation and expansive soil distress.

• Slope Stabilization Permitting

  Processing permits and providing documentation to support discretionary municipal reviews.

Field observation, material testing, and environmental monitoring to verify compliance with geotechnical recommendations.

• Geotechnical Observation & Testing

  Compaction testing, footing inspections, and field verification during earthwork operations.

• Construction Monitoring Protocol

  Developing response and monitoring protocols where adjacent properties may be impacted by construction activities.

Expert witness testimony, failure analysis, and third-party peer reviews for municipal agencies and private clients.

• Expert Witness Testimony

  Providing forensic engineering investigations and technical testimony for legal disputes involving soil settlement, landslides, and construction defects.

• Municipal Geotechnical Review

  Acting as a third-party reviewer for cities on discretionary permitting issues.