Rio Salado Town Lake Reservoir Report

Last Updated: December 22, 2025

Located in Tempe, Arizona, Rio Salado Town Lake is a picturesque man-made reservoir along the Salt River.


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Summary

Completed in 1997, this recreational oasis covers a surface area of 214 acres and boasts a maximum storage capacity of 2,846 acre-feet. The dam, standing at a height of 40 feet, serves as a vital water resource for the surrounding community while providing a serene setting for outdoor activities.

Managed by the Arizona Department of Water Resources, Rio Salado Town Lake is regulated and inspected to ensure its structural integrity and safety. With a significant hazard potential but a satisfactory condition assessment, this reservoir poses a moderate risk level. Despite its uncontrolled spillway type and associated hazard, the dam continues to meet guidelines and serve as a valuable asset for water and climate enthusiasts in the region.

From its scenic location along the Salt River to its ample recreational opportunities, Rio Salado Town Lake stands as a testament to effective water resource management and environmental stewardship. With a rich history dating back to its construction in the late 1990s, this reservoir remains a popular destination for locals and visitors alike, offering a blend of natural beauty and functional infrastructure in the heart of Maricopa County.

Year Completed

1997

Dam Length

902

Dam Height

15

River Or Stream

SALT RIVER

Primary Dam Type

Other

Surface Area

214

Hydraulic Height

16

Drainage Area

13000

Nid Storage

2846

Structural Height

40

Hazard Potential

Significant

Foundations

Soil

Nid Height

40
       
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.