The Western Shasta RCD can assist agencies with site mitigation projects by replacing habitat (mostly trees and plants) that are lost due to public works or development projects, such as straightening or widening a highway, or construction of a new building.

During construction, some trees and plants are inevitably removed in the process, and the Western Shasta RCD can be contracted to replace these trees and plants in another location (usually in a number greater than was removed) and maintain them for a specified length of time. This way, even though the habitat was relocated, it will not be permanently lost.