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Public engineering firm profile

Alpha Geotechnical & Materials, Inc.

Tempe, AZ

Public profile details are available below.

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Services
86
Offices
1
Projects
18
Leaders
5
Founded
1998
Size Estimate
1-25 employees

Overview

Alpha Geotechnical & Materials, Inc. is a Tempe, Arizona-based consulting practice founded in 1998, specializing in geotechnical and environmental engineering, geological services, construction inspections, and materials testing. It serves public and private clients on projects ranging from single commercial pads to large master-planned communities across the Phoenix metro area, delivering timely, accurate, and cost-effective field and laboratory testing.

Founded
1998
Size Estimate
1-25 employees

Services

Geotechnical Engineering

Provides site investigations, foundation design support, seismic class evaluations, and earth retention analysis for public and private infrastructure.

Subsurface Site InvestigationFoundation, Pavement, and Earthquake EngineeringExcavation Conditions EvaluationEarth Slopes and Embankments AnalysisRetaining Walls DesignBuried Structures AnalysisSoil Improvement and StabilizationErosion Control SolutionsGeologic Hazard EvaluationSlope Stability Analysis

Geotechnical Testing

Conducts laboratory and field evaluations of soil properties to determine engineering parameters for construction projects.

Field Density DeterminationDensity of Undisturbed SamplesAtterberg LimitsMoisture-Density RelationshipExpansion and Consolidation TestingPermeability TestingPercolation TestingCorrosivity TestingDirect Shear TestingR-Values Evaluation

Concrete Testing

Performs quality control sampling, slump, and air content checks, along with strength testing of plastic and hardened concrete.

Sampling and Slump Testing of Plastic ConcreteUnit Weight and Yield of Plastic ConcreteAir Content and Temperature MeasurementsMaking and Curing of Concrete CylindersCoring of Cylindrical SpecimensRebar Location and Pachometer SurveysSchmidt Hammer Testing of Hardened ConcreteSpecial Inspection of Reinforced ConcreteVapor Transmission MeasurementFloor Flatness and Levelness TestingPull Testing of Rebar and Anchor BoltsCompressive and Flexural Strength Testing

Soils and Aggregate Testing

Offers classification, compaction, shear, and durability evaluations of soils and structural aggregates.

Field Density by Nuclear Gauge, Sandcone, or Large Sandcone MethodsSieve AnalysisLaboratory Plasticity Index and Atterberg LimitsMoisture-Density Relationship (Proctor Determination)Expansion Index TestingpH and Resistivity TestingDirect Shear Testing of SoilsSwell and Consolidation TestingTriaxial Permeability of Cohesive SoilSpecific Gravity and Absorption of AggregateUnit Weight of AggregateFractured Face CountSand Equivalent TestingFlat and Elongated Particles

Asphaltic Concrete Testing

Delivers field density measurements, extraction tests, and air void determinations to verify pavement compliance.

Field Density Determination by Nuclear GaugeCoring of Cylindrical SpecimensExtraction and GradationUnit Weight and Thickness of SpecimensMaximum Specific Gravity (Rice Test)Stability and Flow TestingTensile Strength RatioMarshall TestingAir Voids Determination

Grout, Mortar, and Concrete Masonry Testing

Assesses the compressive strength and physical characteristics of masonry components to support structural certification.

Grout and Mortar Sampling and Slump TestingGrout and Mortar Temperature MeasurementMaking and Curing of Grout and Mortar PrismsRebar Location and Pachometer SurveysSpecial Inspection of Concrete Masonry ConstructionCompressive Strength Testing of Grout, Mortar, and Masonry Units

Environmental Services

Executes environmental site assessments, hazardous material surveys, and regulatory compliance planning for land development.

Phase I, II, and III Environmental Site AssessmentsPesticide and Herbicide ScreeningsAsbestos and Lead-Based Paint SurveysEnvironmental Compliance Audits and PlansIndoor Air Quality AssessmentsUnderground Storage Tank Corrective Actions and ClosureSeptic, Drywell, and Groundwater Well Assessments and ClosuresSoil and Groundwater Investigation and RemediationSoil-Gas SurveysForensic and Expert Witness WorkStormwater Pollution Prevention PlansSpill Prevention Countermeasure and Control PlansEnvironmental and Air Permitting

Geological Services

Performs earth fissure assessments, geological hazard evaluations, and subsurface water investigations.

Percolation TestingEarth Fissure EvaluationsSeismic SurveysRock Slope EvaluationsEvaluation of Seismic Site ClassGroundwater EvaluationsRip Rap Observation and Testing

Industries

CommercialResidentialEducationGovernmentAviationTransportationHighways & RoadsTransitDefense

Firm type

Geotechnical EngineeringEnvironmental EngineeringMaterials Testing

Project types

Commercial and Industrial BuildingsMaster-Planned CommunitiesFreeways and RoadwaysLight Rail TransitAirport Runways and PavementsMilitary Airfield PavementsSchool and University FacilitiesLibraries and Recreation Complexes

Projects

Leadership

Carrie Weaver

President

Alf Wold

Vice-President of Operations

P.E.

Bill Sprague

CFO

Chet Pearson

Professional Engineer

P.E.

Michelle Fowler

Professional Engineer

P.E.

Offices

Headquarters

Headquarters

2504 West Southern Avenue

Tempe, AZ 85282

USA

(602) 453-3265

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