INDOT & Public Infrastructure
INDOT-approved materials produced and tested to meet state specifications for roads, bridges, and transportation projects across Southern Indiana.
Supplying Materials That Meet the Standard
Robertson Crushed Stone has a long history of supplying INDOT-approved materials for public infrastructure projects. Experience working within specification-driven environments has shaped a production process focused on compliance, documentation, and consistency across large-scale deliveries.
Specifications Leave No Room for Guesswork
Public infrastructure projects demand materials that meet defined standards every time. Gradation, durability, and chemical composition must align with project requirements. Understanding these expectations ensures materials support project approval, inspection, and long-term public use.
From Quarry to Site.
From Quarry to Site.
From Quarry to Site.
From Quarry to Site.
From Quarry to Site.
From Quarry to Site.
Additional sizes and specifications are available upon request.
These materials represent selections commonly used across a range of residential site conditions.
Additional sizes and specifications are available upon request.
#73 Dense Grade Base
#53 Dense Grade Base
#5 Coarse Aggregate
#23 Sand
#2 Coarse Aggregate
Why Choose Robertson?
A supplier is only as dependable as the materials, processes, and people behind it. Robertson Crushed Stone has built its reputation by focusing on consistency, accountability, and long-term relationships. From production to delivery, every part of the operation is handled with care, discipline, and attention to detail.
Safety
Safety is part of how work is planned, performed, and carried out every day across the quarry and fleet.
Quality
Materials are produced through controlled processes and verified testing to ensure consistent, dependable performance.
Reliability
Local production and coordinated delivery help ensure materials arrive as expected and ready to be placed.
Integrity
As a family-owned operation, every load reflects a commitment to do the work right and stand behind it.