AYOPP

At AYOPP, we offer comprehensive engineering services with a primary focus on Geotechnical Engineering, Environmental Consulting, Water Resources and Construction Support. Our work is rooted in time-tested engineering principles, technical accuracy, and a steadfast commitment to public safety and project performance.

Our Areas of Expertise

We specialize in delivering tailored engineering solutions for public agencies, private developers, contractors, and design professionals. Our core services include:

• Dredging design & Soil Mechanics
  
  

• Site Characterization & Subsurface Investigations
  
  

• Foundation Design (Shallow & Deep)
  
  

• Slope Stability Analysis & Landslide Remediation
  
  

• Retaining Wall & Earth Retention Design
  
  

• Culvert & Drainage System Engineering
  
  

• Hydrology & Water Resources Planning
  
  

• Construction Inspection & Materials Testing

Whether you're constructing a building, bridge, roadway, or utility infrastructure, AYOPP provides the technical insight and dependable support you need—every step of the way.

In-House Materials Testing Laboratory

To maintain the highest level of quality control, AYOPP operates a fully equipped soils and materials testing laboratory, managed by licensed Civil Engineers. Our lab adheres to ASTM and AASHTO testing protocols, providing accurate and timely results for:

• Soil classification (Unified/USCS and AASHTO)
  
  

• Compaction testing (Proctor – standard and modified)
  
  

• Atterberg limits
  
  

• Grain size distribution (sieve and hydrometer analysis)
  
  

• Direct shear, unconfined compression, and triaxial tests
  
  

• Permeability, consolidation, and other specialized tests
  
  

This integrated capability allows us to deliver faster turnaround times, consistent data interpretation, and tighter project coordination.

The Role of Geotechnical Engineering

Geotechnical Engineering is the foundation—literally and figuratively—of all civil construction. It involves understanding the engineering behavior of soil, rock, and groundwater, and using that knowledge to design safe and reliable structures.

Our work begins well before construction. It starts with a thorough investigation of the site’s subsurface conditions. Through boring, sampling, testing, and analysis, we evaluate:

• Soil strength and load-bearing capacity
  
  

• Settlement potential
  
  

• Groundwater behavior
  
  

• Seismic and liquefaction risks
  
  

This data drives the design of foundations, retaining structures, pavements, slopes, and underground facilities. It also helps reduce construction risk, avoid costly redesigns, and ensure that projects remain structurally sound over time.

Site Investigations: Building from the Ground Up

Before a single yard of concrete is poured or steel driven, it is essential to understand what lies beneath the surface. Our geotechnical investigations involve:

• Field exploration (borings, test pits, cone penetration testing)
  
  

• Geophysical surveys and mapping
  
  

• Groundwater observation
  
  

• Lab testing and engineering analysis
  
  

• Detailed reporting and design recommendations
  
  

By characterizing the ground properly, we ensure that structures are supported on firm, well-understood foundations, reducing risk of future settlement, structural failure, or unanticipated costs.

Infrastructure Design & Public Safety

Geotechnical engineering is critical in the planning and development of infrastructure such as:

• Roads and highways
  
  

• Bridges and culverts
  
  

• Embankments and levees
  
  

• Pipelines and utilities
  
  

• Water retention systems
  
  

• Tunnels and underground structures
  
  

We evaluate ground stability, predict deformation, and design site-specific solutions to withstand real-world stresses—natural and man-made alike.

Managing Natural Hazards

Nature cannot be controlled—but it can be understood, planned for, and mitigated.

Our engineers are experienced in analyzing terrain and geological hazards, including:

• Landslides and slope failure
  
  

• Seismic ground motion and liquefaction
  
  

• Erosion, scour, and sediment transport
  
  

• Flooding and stormwater infiltration
  
  

We assess soil behavior under extreme conditions and design engineering controls such as:

• Engineered slopes and rockfall protection
  
  

• Retaining walls and ground anchors
  
  

• Surface and subsurface drainage systems
  
  

• Ground improvement and stabilization techniques
  
  

While we embrace new technologies and evolving analytical tools, we remain grounded in the fundamental truths of soil behavior, engineering judgment, and real-world constructability.

Our philosophy is simple: build with confidence by understanding the ground beneath your feet.