After receiving his Ph.D., Wedel moved back to
Nebraska and worked as an archaeologist for the Nebraska State Historical Society for one field season. In August 1936, he began his career with the
Smithsonian Institution. His original position was Assistant
Curator of Archaeology. Over the next 29 years, Wedel held numerous positions at the Smithsonian until his ultimate position of Senior Archaeologist. In 1976 Wedel retired from the Smithsonian but continued to remain active in research as Archaeologist Emeritus for the Institution. In the 1930s, Wedel,
William Duncan Strong and
A. T. Hill found archaeological evidence in Nebraska different from that of the prehistoric
Central Plains and
Woodland traditions. The evidence was attributed to a new culture called the
Dismal River culture, or Dismal River aspect, for its location on the
Dismal River basin, dated between 1650 and 1750 A.D. Among the positions that Wedel held was that of field director and party chief for the
Smithsonian Missouri River Basin Surveys Project. The Missouri Basin Project was a separate division of the Smithsonian that existed for nearly 24 years beginning in 1946. The goal of the project was to survey the roughly of the
Missouri River Basin for archaeological remains that were to be affected by the construction of federal reservoirs. Although the project was technically a division of the Smithsonian, it was funded by a cooperative agreement between federal agencies such as the
Bureau of Reclamation and the
Army Corps of Engineers. During its time, the Interagency Archeological Salvage Program accomplished more archaeological recovery than any other river basin in the nation. The River Basin Project was eventually transferred to the
National Park Service and led to the development of the Midwest Archeological Center. Wedel remains a key figure in archaeological studies. Because he never held an academic position he is important for shaping the image of the professional federal archaeologist. He has been referred to as "the professor without a classroom". ==Influences on archaeology==