OUR WORK

Projects accomplished by AYOPP's Geotechnical Engineers

APS Cholla Power Plant, Joseph City, Arizona

Removal of CCR via mechanical excavation; developed dewatering plan and Closure-By-Removal alternative; estimated dewatering alternatives; coordinated subcontractors; reviewed daily field reports.

Sierrita Copper Mine, Green Valley, Arizona

Conducted quarterly inspections of Bailey Dam; checked for erosion, cracking, vertical displacement, misalignment, vegetation, or animal burrows; submitted field inspection reports.

APS Four-Corners Power Plant, Fruitland, New Mexico

As Deputy Project Manager, oversaw dredging operations for CCR removal; reviewed submittals and RFIs; classified soil; collected samples; submitted daily field reports.

Freeport-McMoRan Mine, Morenci, Arizona

Oversaw installation of 231 wick drains to dewater tailing silty-sand shell; logged depths and submitted daily logs to the Project Manager.

TVA Access Road and Bridge, Cumberland City, Tennessee

Served as Project Engineer for a 60-ft wide, ¾-mile access road and 400-ft concrete bridge; reviewed submittals, oversaw pile driving, drilling, sampling, and supervised the CQA team.

TVA Main Ash Pond Repurposing, Cumberland City, Tennessee

Field Engineer and CQA for excavation of CCR; observed exploratory drilling and sampling; performed slope stability analysis with GeoStudio; assisted in instrumentation monitoring.

City of Columbia Long Term Water Supply Program, Columbia, Tennessee

Led drilling of exploratory boreholes over twenty miles; coordinated traffic control; sampled and logged SPT samples and cores; conducted geotechnical analyses.

TVA ALF Closure-By-Removal, Memphis, Tennessee

CQA for East and West Ash Pond closures; observed drilling and soil sampling; submitted daily, monthly, and annual instrumentation monitoring reports; assisted with submittal responses.

Valley Link, Alameda and San Joaquin Counties, California

Developed Safe Work Plan; scheduled and coordinated subcontractors; conducted field visits; provided access route mapping; coordinated with Union Pacific Railroad; mapped CPT locations.

Granite Rock Sand Fractionation Plant, Aromas, California

Field Engineer to observe exploratory drilling and sampling; compiled data; analyzed slope stability with GeoStudio; confirmed driven foundation pile capacities.

US 101/Hearn Avenue Overpass, Santa Rosa, California

Managed bridge replacement and retaining walls; reviewed data input; checked calculations to ensure design compliance.

San Francisco International Airport Runway Improvements, San Francisco, California

Field Engineer for subgrade compaction and asphalt placement; measured mix temperature; observed coring and sampling; submitted daily field reports.

Caraustar Separator, San Jose, California

Conducted lab soil compaction testing of Class 2 AB; used moisture-density gauge to confirm compaction; verified specified materials; submitted daily reports.

SR 84/I-680 Interchange Improvements Project, Alameda County, California

Facilitated safety tailgate meetings; logged and recovered SPT and modified sampler samples; observed CPT; classified soils and weathered rock; prepared boring logs and reports.

Homeland Defense Radar, Hawaii

Compiled field boring data; developed Excel charts plotting soil properties and failure envelopes; reviewed input parameters; checked calculations.

San Jose State University Faculty Housing, San Jose, California

Compiled historical soil data and developed charts for soil parameters; used Settle‑3D for settlement estimates; performed bearing capacity and induced stress analyses.