Weaver Lake Dam Reservoir Report
Nearby: Los Robles Lake Dam Patout Gss
Last Updated: December 6, 2025
Weaver Lake Dam, located in Grimes, Texas, was completed in 1970 with a primary purpose of flood risk reduction along the TR-Elm Grove Creek.
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Summary
The dam, standing at 20 feet tall and 620 feet long, is classified as an earth dam with a stone core foundation on soil. With a storage capacity of 73 acre-feet, the dam serves multiple purposes including fire protection, stock or small fish pond, flood risk reduction, and recreation on its 7-acre surface area.
Managed by a private owner, Weaver Lake Dam is not state regulated but does require state permitting and inspection. Despite its high risk assessment rating, the dam has not been assessed for its current condition and hazard potential. Interestingly, the dam does not feature a spillway and is equipped with one outlet gate. As an important structure for flood mitigation in the area, Weaver Lake Dam plays a crucial role in protecting the surrounding community from potential disasters.
Water resource and climate enthusiasts will be intrigued by Weaver Lake Dam's unique design and functionality in managing water flow along the TR-Elm Grove Creek. With its historical significance dating back to 1970, the dam continues to serve its primary purpose of flood risk reduction while offering additional benefits such as fire protection, recreational opportunities, and small-scale water storage for local needs. As discussions around climate change and water resource management continue to evolve, Weaver Lake Dam stands as a testament to human ingenuity in harnessing and controlling natural forces for the benefit of communities.
Year Completed |
1970 |
Dam Length |
620 |
Dam Height |
20 |
River Or Stream |
TR-ELM GROVE CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
20 |
Drainage Area |
0.22 |
Nid Storage |
73 |
Structural Height |
20 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Brazos Rv Nr Hempstead
|
1800cfs |
Lake Ck Nr Dobbin
|
14cfs |
Spring Ck Nr Tomball
|
35cfs |
Dry Ck At Fm 2978
|
2cfs |
Cypress Ck At Katy-Hockley Rd Nr Hockley
|
24cfs |
Little Cypress Ck Nr Cypress
|
41cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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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