How Much Dirt Does It Take to Build a Supercross Track? Volume, Weight, and Where It Comes From

A modern Supercross track inside an NFL or MLB stadium typically uses about 5,000 to 6,500 cubic yards of dirt. That is roughly 25 to 30 million pounds of material delivered in about 500 dump-truck loads, then shaped into jumps, rhythm lanes, and berms over a protected stadium floor. Source: SupercrossLive (Supercross 101)

Quick numbers: cubic yards, weight, and truckloads

Monster Energy Supercross lists about 5,500 cubic yards as the average dirt volume for a standard stadium build, often cited alongside about 500 truckloads. Supercross 101 A Dirt Rider track-build feature puts the scale at over 500 truckloads totaling roughly 26 million pounds, which lands in the same real-world range. Dirt Rider

Some events go bigger. A behind-the-scenes removal video documents about 6,500 yards for a deeper build, showing how volume can climb depending on the layout and base depth. Dirt World (YouTube) For hybrid stadium-plus-outside layouts, total dirt can reach around 30 million pounds. LAist

What kind of dirt it is, and where it comes from

Supercross dirt is not random fill. It is usually a clay-heavy mix blended with sand so it can be packed into steep faces, hold shape, and still rut up for technical racing. Reported mixes land around 60 to 70% clay with 30 to 40% sand, adjusted per venue and soil behavior. TribLive Los Angeles Times

The supply is typically managed like a construction asset. Promoters source dirt from local excavation and construction projects or pull from long-term stockpiles they reuse for years to control costs. In some cities, the same dirt rotates between events like Supercross and Monster Jam, then goes back into storage. TribLive Where Supercross Dirt Comes From (YouTube)