Wolff is a privately owned Earth dam located in Campbell, Wyoming, specifically in the area of BN RR & ECHITA ROAD. Completed in 2004, this dam serves primarily for irrigation purposes, with additional functions including fire protection, stock, and small fish pond usage. With a dam height of 30 feet and a maximum storage capacity of 43 acre-feet, Wolff spans a length of 530 feet and covers a surface area of 3.3 acres. The dam is regulated by the Wyoming State Environmental Quality and Department of Environmental Quality agencies, and is subject to regular inspections to ensure its structural integrity.

Situated on the HELIX DRAW river or stream, Wolff has a low hazard potential and is assessed to be in fair condition as of its last inspection in June 2019. The dam features an uncontrolled spillway with a width of 15 feet, and an outlet gate in the form of a single valve. Its risk assessment is moderate, with a DSAC (Dam Safety Action Classification) date yet to be assigned. Despite its private ownership, Wolff plays a crucial role in water resource management in the region, contributing to irrigation and ensuring water availability for various agricultural and environmental needs. Enthusiasts of water resources and climate will find Wolff to be an interesting case study in dam construction, maintenance, and regulation within the Wyoming landscape.