Services

Tharp & Associates, Inc.'s services generally fall into three stages depending on individual project requirements.

The first stage is typically Planning and Feasibility. Technical services provided in this phase of development may include:
-Subsurface exploration and sampling
-Geotechnical/geologic hazards
-Seismic surveys/rippability analysis -Landslide feature identification
-Liquefaction potential assessment
-Bearing capacity determination
-Expansive/collapsible soil mitigation
-Environmental site assessments
-Aerial photography interpretation
-Mapping and interpretation of surface and subsurface feature

The second stage generally incorporates preliminary and/or final design parameters, depending on the site and project requirements. Services required may include engineering analysis and recommendations related to:
-Engineering properties of soil and rock
-Engineered fill
-Landslide mitigation/stabilization
-Settlements
-Slope stability
-Soil stabilization
-Retaining structures
-Draining and dewatering
-Earthquake effects
-Excavations
-Bracing and shoring
-Foundation systems
-Slabs-on-grade
-Underpinning
-Grading
-Compaction
-Construction observation/testing

During the final stage (grading and construction) Tharp & Associates, Inc. provides observation, materials testing, performance evaluation, product certification, and other quality control services. These services can be provided in our laboratory, at fabrication plants, or on construction sites. Our testing and verification services utilize the latest ASTM testing methods, and are generally related to construction materials such as:
-Soil (field & laboratory)
-Aggregates
-Portland cement concrete
-Soil-cement
-Chemical analysis.