Sound and solid geotechnical engineering and construction services
Granite Engineering Group, Inc. (GEG) is a geotechnical engineering and construction services practice based in Colorado Springs, Colorado. Situated near the base of Pikes Peak, the practice delivers subsurface exploration, geotechnical analysis, and construction materials testing across Colorado, Oklahoma, and Texas. With a team of professionals bringing over two decades of engineering experience, it supports transportation, government, energy, and commercial projects from initial site investigation through construction-phase inspection.
Hai Ming LimPresident
John IbarraVice President
Gathers critical soil and rock engineering properties through advanced field investigation and drilling methods prior to construction.
Executes solid stem and hollow stem auger borings to extract soil samples and log subsurface stratigraphy.
Utilizes mud and air rotary drilling techniques to advance boreholes through challenging geological formations.
Performs diamond coring of bedrock and ODEX drilling systems to penetrate through boulder-laden soils.
Conducts standard penetration tests, cone penetration tests, dilatometer tests, pressuremeter testing, and borehole shear measurements.
Measures soil permeability using percolation and double-ring infiltration test methods for stormwater design.
Deploys ground penetrating radar, electrical resistivity, seismic refraction, and parallel seismic testing to map subsurface features.
Performs analytical evaluations to support foundation systems, earth retention structures, slope stability, pavement structures, and geohazard mitigation.
Formulates deep and shallow footing recommendations for buildings, bridges, and infrastructure structures.
Designs asphalt and concrete pavement thickness based on subgrade capability and project traffic loads.
Engineers temporary and permanent walls including cast-in-place, MSE, soil nail, and shoring structures.
Evaluates hillside integrity, landslide risks, and geologic hazards to formulate effective mitigation plans.
Diagnoses structural distress and monitors earth movements using specialized site sensors and diagnostic tools.
Provides comprehensive field quality control, materials testing, and inspection programs with specialized expertise in state department of transportation documentation.
Verifies open holes, footings, reinforcement steel, and structural elements before concrete placement.
Measures fresh concrete properties and performs compressive and flexural strength tests on specimens.
Determines engineering properties of soils including moisture content, gradation, Atterberg limits, and proctors.
Performs coring, thickness measurements, bulk specific gravity, and asphalt content testing.
Manages project submittals, quantities, change orders, and state department of transportation compliance forms.
Transportation · Government · Solar · Commercial · Land Development · Stormwater & Flood Control · Bridges · Highways & Roads
Colorado Springs, CO · Bridges
Completed subsurface exploration and foundation studies for replacing four parallel bridge structures over a creek, railroad, and local streets. Handled engineering evaluations and designs for MSE, shoring, and hybrid walls.
Aurora, CO · Commercial
Provided subgrade improvements, shallow and deep foundation recommendations, percolation testing, and pavement thickness design for a building reconstruction. Conducted inspections of steel, bolting, roofing, and concrete work.
Southern Colorado · Solar
Executed field exploration, test pits, and Wenner four-point electrical resistivity testing across a 1,000-acre site. Analyzed post driveability, load capacities, thermal resistivity, and performed post-installation testing.
Colorado Springs, CO · Stormwater & Flood Control
Supervised materials testing, inspection, and agency compliance documentation for box culvert repairs and extensions under a highway. Advised on shoring wall configurations and monitored storm-related site challenges.