4-B Farms, located in Marion, Oregon, is a privately owned water resource facility regulated by the Oregon Water Resources Department. With a storage capacity of 147 acre-feet and a surface area of 4.88 acres, this dam plays a crucial role in water management in the region. Despite having a low hazard potential, the dam is subject to regular state inspections, enforcement, and permitting to ensure its safe operation.

Owned by Ross Foster, 4-B Farms is situated in a picturesque location with a latitude of 45.09058 and a longitude of -122.738001. Managed by a private entity, this dam serves as a vital resource for irrigation and agricultural purposes in the area. With a history dating back to an unspecified completion year, this facility continues to play a key role in water conservation and management efforts in Oregon.

Although the dam's condition is currently not rated, its last inspection in May 2020 revealed no significant issues. With a well-documented emergency action plan and a low hazard potential, 4-B Farms stands as a testament to the importance of proper water resource management and regulation. Water resource and climate enthusiasts will appreciate the commitment to safety and efficiency demonstrated by this privately owned facility in Marion, Oregon.