AREA #4

• 2″ to 3/8″ (washed/clean)
• primarily used on the rail track, and can also be used for roadways

AREA #4A (D-Ballast)

• 2″ to 3/8″ (washed/clean)
• primarily used on the rail track, and can also be used for roadways

Ballast also holds the track in place as the trains roll over it. It typically consists of crushed stone, although other, less suitable, materials have sometimes been used such as burnt clay. The term “ballast” comes from a nautical term for the stones used to stabilize a ship.**

**copied from https://en.wikipedia.org/wiki/Track_ballast


AREA #5 (C-Ballast)

• 1.5″ to 3/8″ (washed/clean)
• commonly used in rail yards and for back filling lateral lines and around pipes

Railroad Ballast is a clean, 100% crushed granite. This Ballast is produced daily at Wilson Quarry to meet the American Railway Engineering Association (AREA) #4 Ballast Specifications as well as ASTM C-33 Size #4.***

***copied from https://www.graniterock.com/product/wilson-1-1-2-x-3-4-railroad-ballast