Upper Baker is a gravity dam located in Whatcom, Washington, along the Baker River. Built in 1959, this hydroelectric facility has a structural height of 312 feet and a length of 1200 feet, providing a normal storage capacity of 274,221 acre-feet. The dam serves multiple purposes including fish and wildlife enhancement, recreation, and hydroelectric power generation.

Managed by a public utility, Upper Baker is under the jurisdiction of the Federal Energy Regulatory Commission for regulation and inspections. With a Hazard Potential rating of High and a Risk Assessment of Very High, the dam's emergency action plan is crucial for mitigating potential risks and ensuring public safety. Despite its age, Upper Baker remains a vital water resource infrastructure in the region, supporting various ecological and economic activities along the Baker River.

The dam features a controlled spillway with a width of 75 feet and Tainter radial gates for water release. Its strategic location and design make it a key component in managing water flow, storage, and discharge in the area. As climate change continues to impact water resources, the importance of structures like Upper Baker in maintaining a sustainable and resilient water supply for the community becomes increasingly evident.