The company said during a public hearing in July it plans to use horizontal directional drilling to bore at least 50 feet below the bed of the Missouri and at least 20 feet below the other rivers.

Vermeer Unveils D24 Horizontal Directional Drill Vermeer This 24,000-lb (110-kN) class drill, replaces the D23x30 S3 in the Vermeer utility drill lineup and includes a 100-hp (74.6-kW) Cat 3.6L ...