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DOT #53 limestone, also known as #53 DOT stone, certified #53 limestone, dense-graded aggregate, or specification-grade road base, is a compactable blend of crushed limestone, smaller stone, stone dust, and fines produced to meet applicable state Department of Transportation requirements. It is commonly supplied as approximately 1-inch-minus material, although exact top size and gradation may vary by state specification and approved quarry source.
Its balanced particle distribution allows the smaller material to fill the spaces between larger stone as the aggregate is graded and mechanically compacted. This creates a dense, firm foundation with strong load-bearing capacity and dependable resistance to shifting, rutting, and settlement under traffic and structural loads.
DOT #53 limestone is widely used in roadway, municipal, commercial, and residential construction because it combines consistent gradation, reliable compaction, and long-term structural support. It performs especially well beneath asphalt, concrete, gravel surfaces, driveways, and other high-traffic improvements that require specification-compliant base material.
Common Applications of DOT #53 Limestone
- Road base and highway sub-base construction
- Driveway and access-road base preparation
- Commercial and municipal pavement projects
- Base support beneath asphalt or concrete
- Parking lot and equipment-area construction
- Construction entrances and staging areas
- Site grading and ground stabilization
- Structural support beneath slabs and paved surfaces
