Stnot Ratedgis #2 Reservoir Report

Last Updated: December 13, 2025

Stnot Ratedgis #2 is a gravity dam located in Meade, South Dakota, specifically in the city of STNot RatedGIS.


°F

°F

mph

Wind

%

Humidity

Summary

Built in 1894, this dam spans 220 feet in length and stands at a height of 30 feet, with a storage capacity of 60 acre-feet. It serves as a vital water resource structure on Alkali Creek, with a drainage area of 2 square miles and a maximum discharge of 185 cubic feet per second.

Despite its age, Stnot Ratedgis #2 is regulated, permitted, inspected, and enforced by the South Dakota Department of Agriculture and Natural Resources. The dam is classified as having a "Significant" hazard potential, but its condition assessment is currently labeled as "Not Rated" as of the last inspection in July 1986. While the exact risk assessment and management measures are not specified in the available data, the dam's emergency action plan status, inundation maps, and contact information for emergencies are not provided.

Water resource and climate enthusiasts interested in Stnot Ratedgis #2 can appreciate its historical significance as a key structure in the local water infrastructure. The dam's location in Meade County, South Dakota, along Alkali Creek, highlights its importance in managing water flow and storage in the region. With a primary purpose related to water management, this gravity dam represents a crucial component of the local ecosystem and water resource management efforts, despite its age and condition assessment remaining undisclosed.

Year Completed

1894

Dam Length

220

Dam Height

30

River Or Stream

ALKALI CREEK

Primary Dam Type

Gravity

Hydraulic Height

30

Drainage Area

2

Nid Storage

60

Hazard Potential

Significant

Nid Height

30
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.