East Fork Above Lavon Ws Scs Site 2a Dam Reservoir Report

Last Updated: December 5, 2025

Located in McKinney, Texas, the East Fork Above Lavon WS SCS Site 2a Dam stands as a crucial structure for flood risk reduction along the Stover Creek.


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Summary

Built in 1958 by the USDA NRCS, this earth dam with a height of 53 feet and a length of 1800 feet plays a significant role in protecting the surrounding area from potential flooding. With a normal storage capacity of 200 acre-feet and a maximum discharge of 2715 cubic feet per second, the dam serves multiple purposes including irrigation and recreation in addition to flood risk reduction.

Managed by the local government and regulated by the Texas Commission on Environmental Quality, this dam undergoes regular inspections to ensure its structural integrity and overall condition. The last inspection in May 2014 assessed the dam's condition as fair, indicating a moderate level of risk (3). With a spillway width of 352 feet and outlet gates including a slide gate and two uncontrolled gates, the East Fork Above Lavon WS SCS Site 2a Dam is well-equipped to handle potential flood events and protect the surrounding community in Collin County, Texas.

Year Completed

1958

Dam Length

1800

Dam Height

53

River Or Stream

STOVER CREEK

Primary Dam Type

Earth

Surface Area

31

Hydraulic Height

53

Drainage Area

6.43

Nid Storage

2845

Structural Height

53

Outlet Gates

Slide (sluice gate) - 1, Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

53
       
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.