Concrete and geotechnical engineering
consulting and expert witness
Services
Geotechnical Engineering
-Concrete Slab/Foundation Settlement
-Expansive clay issues
-Slope stability, slope failure investigation
-Retaining walls failure investigation
-Pavements and roads design and failure investigation
-Drainage and flooding issues
-Water retaining structures failure investigations
-Swimming pools cracking, settlement, heave
-Grading and soil compaction issue
Concrete Science and Technology
-Slab-on-grade cracks
-Foundation settlement or heave
-Levelness and flatness of slabs
-Misc. concrete issues: Mix design, pumping, curing, testing, surface defects, strength, and durability
-Post fire investigation of foundations, slabs-on-grade, walls
Projects
-Offices
-Warehouses
-Residential buildings
-Roads
-Water retaining structures: Dams, Wastewater Treatment Plants, ponds, swimming pools
-Drainage, culverts
-Sports facilities
-Wineries
-RV parks
Few Representative Projects
Post-Fire Concrete Evaluations
We performed many concrete evaluations after 2017 fires in Sonoma and Napa Counties. We saved several million dollars and priceless time for our clients by proving that the concrete was fine and demolition was not needed. The picture depicts a fire exposed swimming pool that we saved after our evaluation and testing.
Sonoma County, CA.
Unstable Concrete Foundations Due to Expansive Clay Soil
We performed a geotechnical investigation and identified the causation of distress in 110 homes. We testified in federal court. The court awarded in favor of our client.
Merced County, CA.
Slope Failure Investigation
We investigated the failure of a road side slope, provided expert witness services in litigation, appeared in State court to testify.
Calaveras County, CA.
Typical Projects
Failure of Slope and Remediation
We investigated failure of a slope and monitored the remedial work. The remediation consisted of adding a berm to flatten the slope.
Nevada County, CA
Post-Fire Concrete Evaluation
We evaluated concrete foundations and walls exposed to fire. We performed destructive and non-destructive testing, identified concrete members to be kept and the ones to be removed and replaced. Wrote a report for County approval..
Napa County, CA
Post-Fire Shotcrete Evaluation
We evaluated a 22-foot high shotcrete retaining wall after exposure to fire. Performed destructive and non-destructive testing, wrote a report for County approval.
Napa County, CA
Personal Injury - Gas Pipe Explosion
We provided expert testimony in a PG&E gas pipe explosion case. Trench pipe cover and backfill compaction was at issue.
Merced County, CA.
Concrete slab-on-grade Distress-RV Park
We identified the cause of concrete cracks in 144 RV pads. Provided expert testimonial.
Alameda County, CA
Moisture Intrusion through Concrete Slab
Concrete slab had moisture intrusion issues in this high-end custom home. We identified the source and recommended remedial measures.
Santa Monica, CA.