Dependable Delivery Welcome to Central Sand & Gravel (A Division of Lyman-Richey Corporation) based in Columbus, Nebraska. Proudly serving our customers for 90 years, we have been a major supplier of aggregates in Nebraska since 1921. That year, we supplied aggregates for one of the first concrete paving projects in Nebraska. Central Sand and Gravel’s pits are located throughout Nebraska and produce a variety of products. • Fill Sand • Roofing Gravel • Road Gravel • Dirt • Mud Rock • Plaster Sand • Armor Coat • Decorative Rock • 47B Concrete Gravel Give us a call today and let us know how we can. We appreciate your patronage.