North Fork, also known as Rock Creek Reservoir, is a local government-owned water supply dam located in Philomath, Oregon. Built in 1960 by CH2M HILL, this earth dam stands at a height of 81 feet and has a maximum storage capacity of 305 acre-feet. The reservoir covers a surface area of 6.5 acres and serves the purpose of water supply for the surrounding area.

With a drainage area of 3.3 square miles and a maximum discharge of 1650 cubic feet per second, North Fork is a key infrastructure for water resource management in Benton County, Oregon. Despite being in fair condition according to the latest assessment in August 2020, the dam poses a high hazard potential. Regular inspections and enforcement by the Oregon Water Resources Department ensure the safety and reliability of this essential water supply structure.

Water resource and climate enthusiasts will be fascinated by the technical details of North Fork, including its design specifications and operational history. As a critical component of the local water supply system, this dam plays a vital role in ensuring water availability for the community while also posing unique challenges in terms of risk management and emergency preparedness. The intersection of engineering, environmental conservation, and public safety can be seen in the ongoing monitoring and maintenance efforts for North Fork, making it a noteworthy site for those interested in sustainable water infrastructure.