Public engineering firm profile
Three Notch Group
Andalusia, AL
Guidance. Expertise. Partnership.
- Services
- 39
- Offices
- 1
- Founded
- 1946
Overview
Three Notch Group (formerly CDG) is a regional civil, environmental, and geotechnical consulting firm headquartered in Andalusia, Alabama, serving public entities, private industry, and commercial developers throughout the Southeast since 1946. Three Notch Group provides civil and site development, environmental consulting, construction engineering and inspection, geotechnical services, water and wastewater infrastructure, transportation, solid waste management, natural gas system planning, UST services, surveying, and emergency response management.
- Founded
- 1946
Services
Civil & Site Development
Site design, grading, and civil infrastructure engineering for commercial, industrial, and public projects.
Environmental Consulting
Environmental assessment, regulatory permitting, and compliance leveraging strong regulatory relationships throughout the Southeast.
Construction Engineering & Inspection
Construction observation and materials testing using in-house AASHTO-accredited laboratories to verify project strength and durability.
Geotechnical Services
Comprehensive geotechnical investigation, analysis, and design integrating advanced geoscience technologies with environmental insights.
Water & Wastewater Engineering
Water infrastructure and treatment system design and planning, and wastewater infrastructure and treatment solutions for municipalities.
Transportation
Sidewalk, roadway, intersection improvement, and transportation infrastructure design for the Southeast.
Solid Waste Management
Planning, permitting, and operational consulting for solid waste management facilities.
Natural Gas Services
Natural gas system planning, capacity analysis, and system growth support for utilities.
UST Services
Underground storage tank compliance, assessment, and remediation with strong knowledge of the regulatory environment.
Surveying
Land surveying and geospatial data collection, management, and analysis.
Emergency Response Management
Assessment, remediation, and support services for emergent situations across the Southeast, with more than three decades of experience.