Calvert Mine Spc-4 Dam dam
Calvert Mine Spc-4 Dam
Calvert Mine Spc-4 Dam, located in Robertson County, Texas, was designed by Nationwide Water Resources Services, Inc. in 1991 for the primary purpose of tailings storage. This earth dam stands at a height of 19.1 feet and has a storage capacity of 159 acre-feet, with a surface area of 11.95 acres. The dam is situated on TR-Big Willow Creek and is under the jurisdiction of the Galveston District of the US Army Corps of Engineers.
The dam features an uncontrolled spillway with a width of 20 feet and two uncontrolled outlet gates. Although the hazard potential and condition assessment are not available, the risk assessment for this dam is moderate. It has not been rated for its condition, but it has undergone modifications in 2002. Despite not being state-regulated, the dam is subject to state permitting and inspection requirements. The dam's risk management measures and emergency preparedness details are not specified, but it is essential to monitor and maintain this structure to ensure its safety and effectiveness in managing water resources and climate impacts in the region.
Overall, the Calvert Mine Spc-4 Dam serves a critical function in storing tailings and managing water flow in the area. With its moderate risk assessment, it is vital for the owner, a private entity, to adhere to inspection protocols and implement necessary risk management measures. This dam's capacity and design contribute to the overall water resource infrastructure in Robertson County, emphasizing the importance of maintaining and monitoring such structures for the preservation of water resources and climate resilience in the region.
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.
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.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
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.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Calvert Mine Spc-4 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Brazos Rv Nr Highbank | 990 cfs | → |
| Little Brazos Rv At Fm 485 Nr Hearne | 560 cfs | → |
| Little Pond Ck Nr Burlington | · | → |
| Navasota Rv Nr Easterly | 101 cfs | → |
| Big Elm Ck At Sh 77 Nr Cameron | 932 cfs | → |
| Navasota Rv At Old Spanish Rd Nr Bryan | 371 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Calvert Mine Spc-4 Dam.
Track Calvert Mine Spc-4 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.
About Calvert Mine Spc-4 Dam
Where does the data for Calvert Mine Spc-4 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Calvert Mine Spc-4 Dam.