ACCREDITATIONS
STL Engineers is a Hispanic/Women-owned firm as well as a certified Historically Underutilized Business (HUB). Our highly skilled staff has experience in both public and private sectors providing professional services in the rail transit, transportation, municipal, government, educational, commercial and aviation industries.
• AASHTO R-18
• ASTM D-3740, C1066 and ASTM E-329
• Participant in the Cement and Concrete Reference Laboratory (CCRL)
• Participant in AASHTO Materials Reference Laboratory (AMRL) proficiency sample system
• U.S. Army Corps of Engineers validation for aggregate, concrete and soil testing
GEOTECHNICAL
ENGINEERING
• Foundation design engineering
• Pile load tests expansive soils
• Dewatering systems
• Embankments
• Slope and erosion protection
• Dam inspections
• Retention structures
• Pavement design
• Failure investigation and forensic studies
CONSTRUCTION
MATERIAL TESTING
Testing and inspection services include:
• Observation and testing of soil type, compaction and
stabilization
• Aggregate evaluation
• Concrete mix designs
• Observation of drilled pier/pile foundation systems
• Observation and testing of concrete
• Observation of reinforcing steel/post tension
• Observation and testing of masonry
• Observation of structural steel fabrication and erecting
• Welder qualifications and procedures
• Observation and testing of bituminous paving
• Roofing inspection and testing
• Asphalt
INSPECTION SERVICES
Testing and inspection services include:
• Observation and testing of soil type, compaction and
stabilization
• Aggregate evaluation
• Concrete mix designs
• Observation of drilled pier/pile foundation systems
• Observation and testing of concrete
• Observation of reinforcing steel/post tension
• Observation and testing of masonry
• Observation of structural steel fabrication and erecting
• Welder qualifications and procedures
• Observation and testing of bituminous paving
• Roofing inspection and testing
• Asphalt
SERVICES
