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Geotechnical Engineering Services

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Geotechnical Engineering

BOTA provides a wide range of geotechnical services including subsurface investigation, soil evaluation, in-situ soil infiltration testing, soil laboratory testing, slope stability analysis, geotechnical engineering evaluation and analysis reports, retaining wall design, slope stabilization caisson design, and sheeting and shoring system design or support of excavation (SOE) design.

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Construction Management

BOTA Consulting Engineers delivers Construction Management services with experienced project managers and inspectors, ensuring quality assurance through comprehensive planning, field and laboratory testing, milestone tracking, and addressing client needs to meet project objectives effectively.



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Construction Material testing & inspection

BOTA Consulting Engineers offers comprehensive construction material testing and inspection services, including earthwork, foundation, masonry, structural steel, and concrete inspections. With certified technicians and modern equipment, we ensure compliance, quality assurance, and innovative solutions for stable, durable structures.


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Environmental Services (ESA Phases I & II)

BOTA Consulting Engineers provides Phase I and II Environmental Site Assessments (ESA), addressing potential contamination and regulatory compliance. Services include site investigation, soil, air, and groundwater testing, ensuring timely, cost-effective solutions that meet federal, state, and local requirements.



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Providing Expert Engineering Solutions for Over 32 Years

BOTA provides a wide range of geotechnical, and construction testing & inspection services including:

  • • Subsurface Investigation
  • • Construction Materials Testing and Analysis
  • • Construction Testing and Inspection Services (Special Inspections)
  • • Construction Management Services
  • • AASHTO Certified Laboratory for Soils, Concrete, & Grout
  • • Geotechnical Engineering Analysis and Design
  • • Design of Earth Retaining Structures including MSE walls, concrete cantilever walls and stone or gravity walls
  • • Slope Stability Caissons Design
  • • Geotechnical Instrumentation Monitoring
  • • Environmental Services
  • • Building Code Inspection Services
  • • Private, Local and State Roadways Construction and Inspection Services

Bota Founder
Ernest M. Njaba, P.E.
President / Principal
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Call us anytime 301-552-8840
About Bota Engineering
Our Services

Engineering and consulting services

Geotechnical Engineering
Geotechnical Engineering

BOTA provides reliable geotechnical engineering services, including soil investigations, foundation inspections, materials testing, and construction management.

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Construction Management
Construction Management

BOTA offers construction management services, including inspections, quality assurance, project administration, and field surveys for successful project execution.

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 Construction   Material testing &  inspection
Construction Material testing & inspection

BOTA provides comprehensive earthwork, foundation, masonry, structural steel, and concrete inspections, along with laboratory testing for accurate results.

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Environmental Services
Environmental Services (ESA Phases I & II)

BOTA offers ESA Phase I and II assessments, identifying environmental risks and providing solutions for contaminated project sites.

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Looking for Reliable Engineering Expertise?
Contact BOTA Consulting Engineers Today.

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Completed Projects

Major Projects Experience

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5000

Projects Delivered

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06

Continents Touched

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03

Decades of Engineering Excellence

Bota Consulting Engineers Founder
President/Principal at BOTA Consulting Engineers, Inc.

Mr. Ernest M. Njaba, P.E., is the President and Principal of BOTA Consulting Engineers, Inc., with over 32 years’ experience in Geotechnical Engineering design, Construction Management, and Construction Material Testing & Inspection services. He has managed more than 1200 design and construction projects across the Washington and Baltimore Metropolitan Areas. Mr. Njaba is responsible for overseeing construction management, testing, inspection, and supervising geotechnical studies.

He leads the preparation of engineering designs for residential, commercial, and infrastructure projects, including roads, bridges, and water treatment plants. His expertise includes foundation design, slope stability, and managing challenging soil conditions, ensuring high-quality engineering solutions and safe project execution.

Professionals Team

Our Engineering Specialists

Joanne Sloane
Joanne Sloane
Office Manager
Olayinka “Ola” Jaiyeola
Olayinka “Ola” Jaiyeola
Field Services Manager/Laboratory Manager
Richard C. Vanderhyde
Richard C. Vanderhyde
Business Development Manager

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