Spriggs Rock, also known as Little River Dam, is a water supply dam located in Rice County, Kansas. Built in 1940 by the USA WPA, this earth-type dam stands at a height of 31 feet and has a storage capacity of 240 acre-feet. It serves the primary purpose of providing water supply to the surrounding area, with a normal storage capacity of 175 acre-feet.

Managed by the local government, Spriggs Rock is regulated, inspected, and permitted by the Kansas Department of Agriculture. The dam is situated on the Little Arkansas River-TR, with a drainage area of 5.4 square miles. Despite being classified as having a low hazard potential, the dam is considered to have a moderate risk level, with a risk assessment rating of 3.

With a spillway width of 122 feet and an uncontrolled spillway type, Spriggs Rock has not been modified in recent years and is in a condition that has not been rated. While it has not had an Emergency Action Plan (EAP) prepared or updated, the dam meets regulatory guidelines and is equipped with emergency contacts. Overall, Spriggs Rock is an essential water resource structure in Kansas, serving the community with reliable water supply while adhering to state regulations and safety standards.