Dam Report

Robinson Off-Channel Reservoirs 1a And 1b dam

Texas, USA Off Ch-Brazos River Hazard Not Available
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Dam height
24ft
Hazard rating
Not Available
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Robinson Off-Channel Reservoirs 1a And 1b -- None dam
Robinson Off-Channel Reservoirs 1a And 1b None · Off Ch-Brazos River
About this dam

Robinson Off-Channel Reservoirs 1a And 1b

Robinson Off-Channel Reservoirs 1a and 1b, located in McLennan County, Texas, were completed in 1992 and are owned by the local government. These reservoirs, with a capacity of 1710 acre-feet, primarily serve as a water supply source for the region. The dams are of earth construction type with a height of 24 feet, and the spillway is uncontrolled with a width of 9 feet. The condition assessment conducted in September 2016 rated the reservoirs as fair and their hazard potential as not available.

Managed by the Texas Commission on Environmental Quality (TCEQ), the Robinson Off-Channel Reservoirs are subject to state regulations and inspections. The dams are designed by WALLACE, WINKLER AND RICE INC and are part of the Brazos River off-channel system. The risk assessment for the reservoirs is moderate (3), indicating a need for ongoing monitoring and risk management measures. The emergency action plan for the reservoirs was last revised in February 2010, and the inspection frequency is every 5 years.

Overall, Robinson Off-Channel Reservoirs 1a and 1b play a crucial role in providing water supply for the local community in McLennan County. With their moderate risk level and fair condition assessment, it is essential for the authorities to continue regular inspections and maintenance to ensure the safety and reliability of these important water resource infrastructure. Climate and water resource enthusiasts will find these reservoirs an interesting example of how local governments work to manage water supply in Texas, especially in the face of changing environmental conditions.

StateNone
River / streamOff Ch-Brazos River
NID IDTX06422
Owner typeLocal Government
Primary purposeWater Supply
Dam typeEarth
Year built1992
Dam height24 ft
Max storage1,710 AF
Normal storage1,529 AF
Surface area88.0 ac
Hazard potentialNot Available
ConditionFair
Last inspectionThu, 16 Jun 2016 00:00:00 GMT

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 Robinson Off-Channel Reservoirs 1a And 1b -- inflows here typically show up in storage 24-72 hours later.

Track Robinson Off-Channel Reservoirs 1a And 1b 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 Robinson Off-Channel Reservoirs 1a And 1b

Where does the data for Robinson Off-Channel Reservoirs 1a And 1b 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.