Altus Auxiliary Dike Reservoir Report

Last Updated: January 11, 2026

The Altus Auxiliary Dike, also known as Altus Res Lake Altus, is a federal-owned structure located in Blair, Oklahoma along the North Fork Red River.


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Summary

Completed in 1945, this gravity-type dam stands at a height of 20 feet and spans 1730 feet in length. It serves primarily for irrigation purposes, with a maximum storage capacity of 168,120 acre-feet and a normal storage capacity of 134,550 acre-feet.

With a hazard potential rated as high and a risk assessment categorized as very high, the Altus Auxiliary Dike is crucial for water resource management in the region. Though not currently rated for its condition, it is subject to annual inspections to ensure its structural integrity. In the event of emergencies, the dam is equipped with a controlled spillway and one outlet valve for water release. As climate change continues to impact water resources, the importance of maintaining and monitoring structures like the Altus Auxiliary Dike only grows.

As part of the Tulsa District of the US Army Corps of Engineers, the Altus Auxiliary Dike plays a significant role in managing the water flow of the North Fork Red River. With its strategic location and critical purpose in irrigation, this dam stands as a key infrastructure supporting the agricultural activities in the area. As water resource and climate enthusiasts, understanding the importance of structures like the Altus Auxiliary Dike is essential in safeguarding our environment and water supply for future generations.

Year Completed

1945

Dam Length

1730

Dam Height

20

River Or Stream

NORTH FORK RED RIVER

Primary Dam Type

Gravity

Surface Area

6260

Hydraulic Height

13

Drainage Area

2515

Nid Storage

168120

Structural Height

25

Outlet Gates

Valve - 1

Hazard Potential

High

Nid Height

25
       
Seasonal Comparison

Weather Forecast

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Nearby Streamflow Levels

Altus Auxiliary DikeNorth Fork Red River blw Altus Dam nr Lugert Preview North Fork Red River Blw Altus Dam Nr Lugert
0.0cfs
0cfs
Altus Auxiliary DikeSalt Fork Red River at Mangum Preview Salt Fork Red River At Mangum
52.8cfs
53cfs
Altus Auxiliary DikeNorth Fork Red River near Headrick Preview North Fork Red River Near Headrick
14.9cfs
15cfs
Altus Auxiliary DikeNorth Fork Red River near Carter Preview North Fork Red River Near Carter
29.6cfs
30cfs
Altus Auxiliary DikeNorth Fork Red River near Tipton Preview North Fork Red River Near Tipton
26.6cfs
27cfs
Altus Auxiliary DikeSalt Fork Red River near Elmer Preview Salt Fork Red River Near Elmer
13.3cfs
13cfs

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.
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Nearby Reservoirs