Morse Lake Overflow Dike, also known as the Crib Dam, is a gravity dam located in Cedar Falls, King County, Washington. Completed in 1904, this structure serves as a vital component of the water supply infrastructure in the area, managing the flow of the Cedar River. With a hydraulic height of 30 feet and a structural height of 18 feet, the dam spans a length of 440 feet and has a storage capacity of 75,000 acre-feet.

Managed by the Washington Department of Ecology, Morse Lake Overflow Dike is regulated and inspected regularly to ensure its continued functionality and safety. Despite being categorized as having a low hazard potential, the dam's condition assessment is currently not rated. The structure has not been modified in recent years and lacks detailed emergency action plans, but it remains a crucial asset for water resource management in the region.

Located in Congressional District 08, Washington, Morse Lake Overflow Dike plays a significant role in maintaining water supply stability and protecting against potential flooding events. As a gravity dam with a multi-arch core design, it stands as a testament to early 20th-century engineering and continues to serve the community of Cedar Falls and surrounding areas.