Four generations of heavy civil and excavation across multiple states — proven scale, modern precision, and crews ready to mobilize for the your project.
[1996] —
Contractor of the Year
[2021] —
Contractor of the Year
[2022] —
Public works project of the year
[2022] —
SIBA safety award
[2024] —
Outstanding Subcontractor of the Year
From a farm pond to a 7.5-million-cubic-yard airport expansion, Sierra Bravo Contractors, LLC has spent more than a century moving earth for the people who build this region. We’re a family-owned heavy civil and excavation company, self-performing the work, running our own equipment, and delivering on schedule, every time.
William Boyd founded Sierra Bravo Contractors LLC in 1913, grading the early miles of Routes 51 and 148. Four generations later, the name on the equipment hasn’t changed — and neither has the standard. From early roadwork to large-scale mass excavation, every Boyd generation has added to the same reputation: proven ground, delivered right.
We self-perform the work that other contractors subcontract out — start to finish, with our own crews and our own gear.
Every grade we cut is guided by GPS control systems — machine-controlled, verified in the field, sub-inch accurate. Heavy civil work, executed with engineering precision.
Mass excavation and site development built to spec, on schedule, and to standard — the kind of self-performed earthwork Sierra Bravo Contractors, LLC has delivered across the region for over a century.
We own the work and the equipment. No hand-offs, no shortcuts.
GPS control systems on every grade. Sub-inch accuracy, every project.
Crews and equipment positioned to deploy. Willing to travel for the right job.
OSHA, MSHA, and Safety & First Aid certified. Zero compromises.
· IDOT Contractor of the Year (1996)
· Outstanding Subcontractor of the Year (2024).
[1996] —
Contractor of the Year
[2021] —
Contractor of the Year
[2022] —
Public works project of the year
[2022] —
SIBA safety award
[2024] —
Outstanding Subcontractor of the Year
Add Sierra Bravo Contractors, LLC to your bid list for earthwork, drainage, and site work across Illinois, Indiana, Kentucky, Mississippi, Missouri and “the surrounding region”. We’re ready to mobilize for the your project.
