Dam Report

Sister Grove Creek Ws Scs Site 30 Dam dam

Texas, USA Tr-Sister Grove Creek Hazard Not Available
Today high
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Tonight low
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Dam height
34ft
Hazard rating
Not Available
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Sister Grove Creek Ws Scs Site 30 Dam -- None dam
Sister Grove Creek Ws Scs Site 30 Dam None · Tr-Sister Grove Creek
About this dam

Sister Grove Creek Ws Scs Site 30 Dam

Sister Grove Creek WS SCS Site 30 Dam, located in Grayson, Texas, is a crucial element in the flood risk reduction efforts of the area. Built in 1958 by the USDA NRCS, this earth dam stands at a height of 34 feet with a length of 1680 feet, providing a storage capacity of 225 acre-feet. Despite its age, the dam is still state-regulated and regularly inspected by the Texas Commission on Environmental Quality (TCEQ) to ensure its structural integrity.

The primary purpose of Sister Grove Creek WS SCS Site 30 Dam is flood risk reduction, serving to protect the surrounding areas from potential inundation. With a drainage area of 0.41 square miles and a surface area of 5.94 acres, the dam plays a vital role in managing the water flow of the TR-Sister Grove Creek. Although it does not have a spillway, the dam features an outlet gate to control water release when needed. While its hazard potential is not available, the dam is categorized as having a high risk, emphasizing the importance of continued monitoring and maintenance.

Even though the condition assessment of Sister Grove Creek WS SCS Site 30 Dam is not rated, its risk management measures are crucial in ensuring the safety of the community. The dam's risk assessment highlights the potential risks associated with its operation, prompting the need for a comprehensive emergency action plan (EAP) and updated contact information. As a key infrastructure owned by the local government, this dam serves as a reminder of the ongoing efforts to manage water resources and climate impacts in the region.

StateNone
River / streamTr-Sister Grove Creek
NID IDTX02089
Owner typeLocal Government
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built1958
Dam height34 ft
Dam length1,680 ft
Max storage225 AF
Normal storage40 AF
Surface area5.9 ac
Drainage area0.4 sq mi
Hazard potentialNot Available
ConditionNot Rated

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.
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.
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.

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, environmental 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.
Detailed forecast

Plan around the weather

Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Sister Grove Creek Ws Scs Site 30 Dam -- inflows here typically show up in storage 24-72 hours later.

Track Sister Grove Creek Ws Scs Site 30 Dam in the Snoflo app

Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.

FAQ

About Sister Grove Creek Ws Scs Site 30 Dam

Where does the data for Sister Grove Creek Ws Scs Site 30 Dam come from?

Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.

How often is the report updated?

NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.

What does the Not Available hazard rating mean?

The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.

What's "% of normal"?

The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).

Can I get alerts when storage crosses a threshold?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.