Located in Marion County, Oregon, Lorence Lake is a privately owned reservoir with a significant water storage capacity of 160 acre-feet. Built in 1959 by the Natural Resources Conservation Service, this earth dam stands at a height of 25 feet and has a maximum discharge capacity of 510 cubic feet per second. The reservoir covers an area of 15.5 acres and serves as a vital water resource for the surrounding area.

Managed by the Oregon Water Resources Department, Lorence Lake is regulated and inspected to ensure its structural integrity and safety. With a hazard potential classified as "Significant," the dam undergoes regular inspections, with the last one conducted in October 2020. Although its condition is currently listed as "Not Rated," the dam's emergency action plan status and risk management measures are unspecified.

For water resource and climate enthusiasts, Lorence Lake offers a fascinating example of human-made infrastructure that plays a crucial role in water storage and management. With its strategic location along Drift Creek, this reservoir provides essential water supply for various uses while also posing potential risks that require diligent monitoring and management to ensure the safety of downstream communities and ecosystems.