Earth moved to spec.
Streets built to last.
Tanbaugh Civil performs grading, public works, and structural civil construction under a California A general engineering license — earthwork through finished infrastructure, held to plan.
Mass grading, site balancing, and agency roadway sections delivered to specification.
Certified subgrades and structural pads meeting Caltrans and municipal engineer standards.
Built for general contractors who need engineering certainty.
Tanbaugh Civil is a California A-licensed general engineering contractor operating as a DBA of Big T Reynolds — delivering earthwork, municipal public works, and structural civil packages held to plan and geotech spec.
Flawless license standing under Responsible Managing Officer oversight.
Engineered mass excavation, cut-and-fill, and balanced subgrade profiles.
Civil Projects That
Define Our Standard
Our portfolio showcases a diverse range of projects, from precision mass grading and municipal roadway sections to certified structural building subgrades and heavy civil infrastructure.
Inland Logistics Industrial Pad
San Bernardino, California
2025 • 420,000 CY Mass Earthwork
Highland Parkway Arterial Widening
Riverside, California
2025 • Caltrans Standard Right-of-Way
Rancho Vista Structural Subgrades
Bakersfield, California
2024 • 100% Geotech Compaction
Canyon Crest Regional Stormwater Basin
Moreno Valley, California
2024 • 35 Acre-Feet Capacity
Foothill Corridor Bridge Overpass Abutments
Ontario, California
2023 • Caltrans Bridge Specification
Build your
project team
today.
Direct principal involvement from bid to closeout. Tanbaugh Civil performs grading, public works, and structural civil packages under a California Class A General Engineering license — engineering certainty held to spec.
Company Operations
Overall company operations, client relationships, and hands-on bid-to-closeout involvement.
Class A Licensure & RMO
A-licensed General Engineering Contractor & Responsible Managing Officer qualifying Tanbaugh Civil for heavy civil, earthwork, and public works infrastructure.
Engineering Services That
Deliver Plan Certainty
Tanbaugh Civil executes precision earthwork, municipal public works, and heavy bridge structures under a California Class A General Engineering license — built to spec and held to plan.
Earthwork & Grading
Mass excavation, cut-and-fill, rough/finish grading, site balancing
Mass Excavation & Balancing
Public Works
Street, curb, gutter, sidewalk, municipal infrastructure
Street & Municipal Infrastructure
Bridges & Structures
Structural civil work supporting bridge/infrastructure projects
Structural Civil Engineering
Comprehensive Civil Packages
Utilities, drainage, demolition, paving, etc.
Turnkey Site Enablement