NRCS High Tunnel Initiative

While they may look like greenhouses, high tunnels are actually quite different. Greenhouses are usually constructed of glass and metal, with plants grown in pots above the ground. High tunnels are polyethylene, plastic or fabric covered hoop structures that can be assembled for a fraction of the cost, with plants grown in raised beds or grown directly in the ground.

USDA_NRCS's Environmental Quality Incentives Program (EQIP) offers technical and financial assistance for High Tunnel Systems (Practice 325).  For FY 2021 practices, EQIP offers $2.63 - $3.15 per square foot -- see provided criteria and standards.