Answer: Works Progress Administration
The Works Progress Administration (WPA) was established in 1935, under the Franklin D. Roosevelt administration.
The government created projects for which they hired persons to do work. WPA projects included some building of roads, bridges and other public projects.
There were other programs too, which connected with the WPA. For instance, The Civilian Conservation Corps (CCC), the Soil Erosion Service (later known as the Soil Conservation Service), and the Works Progress Administration (WPA) were all involved in improving land conditions. Working in conjunction with the National Forestry Service, the CCC and WPA participated in planting millions of trees to act as windbreaks, to prevent the kind of blowing erosion of soil that occurred in the Dust Bowl.