Teledyne Allvac Dam #1 Reservoir Report

Last Updated: December 5, 2025

Teledyne Allvac Dam #1, located in Union, North Carolina, is a privately owned earth dam primarily used for irrigation purposes along the Richardson Creek.


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Summary

With a hydraulic height of 23 feet and a structural height of 26.5 feet, this dam provides a storage capacity of 27 acre-feet, serving a drainage area of 20 square miles. The dam has a low hazard potential, with its condition last assessed as "Not Rated" in November 2018.

This dam, constructed by an unknown designer, lacks federal regulation but is subject to state inspection. While it has not undergone any modifications since its completion, it remains a crucial infrastructure for water resource management in the region. Despite its relatively small surface area of 2.5 acres, Teledyne Allvac Dam #1 plays a significant role in facilitating irrigation activities and maintaining water supply stability for agricultural purposes.

As a key component of the local water management system, Teledyne Allvac Dam #1 represents a blend of private ownership and public utility. While it may not attract widespread attention due to its modest size and hazard potential, its strategic location and purpose make it a vital asset for sustaining water resources and supporting the region's agricultural sector. The dam's ongoing maintenance and periodic inspections ensure its continued functionality and contribution to water resource sustainability in Union, North Carolina.

Dam Length

260

River Or Stream

Richardson Crk-Os

Primary Dam Type

Earth

Surface Area

2.5

Hydraulic Height

23

Drainage Area

20

Nid Storage

27

Structural Height

26.5

Hazard Potential

Low

Nid Height

27
       
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.