Because of the large diameters required, Structural Plate (Multi-Plate) panels is on-site assembly. Specifications:

Project A: 20 ft Diameter x 60 ft Length.

Project B: 12 ft to 14ft Diameter x 500 ft Length.

Requirement: Must withstand a minimum of 30 ft of soil cover.

Additional Technical Requirements:

Load Bearing: The structures must be engineered to withstand 30 feet of earth cover/overburden.

Seismic Resistance: The design and connections must be able to handle seismic activity.

Finish: Hot-dip galvanized steel.

Hardware: Please include all necessary high-strength bolts and nuts for assembly.