Hudson is a privately owned irrigation dam located in Fremont, Wyoming, along Long's Creek. It was completed in 1913 and serves the primary purpose of irrigation, with a storage capacity of 132 acre-feet and a structural height of 33 feet. The dam is classified as an Earth dam with a Multi-Arch core type, constructed on a soil foundation.

Despite its low hazard potential, Hudson is rated as having poor condition, with a moderate risk assessment. The dam has one other controlled outlet gate and an uncontrolled spillway with a width of 40 feet. It is inspected every five years, with the last inspection conducted in July 2020. The risk management measures and emergency action plan for Hudson are currently not documented.

Overall, Hudson presents an interesting case study for water resource and climate enthusiasts due to its historical significance and current condition. The dam's location in a picturesque landscape along Long's Creek adds to its appeal, while the ongoing maintenance and risk assessment challenges highlight the importance of proactive management practices in ensuring the safety and effectiveness of water infrastructure in the region.