Upper Big Spring Subws Str R-7-2 dam
Upper Big Spring Subws Str R-7-2
Located in Marshall, Mississippi, the Upper Big Spring Subws Str R-7-2, also known as Dam R-7-2, is a local government-owned structure designed by the USDA NRCS and completed in 1958. This earth-type dam, with a height of 25 feet and a length of 377 feet, serves the primary purpose of flood risk reduction along the TR- Big Spring Creek. It has a storage capacity of 74 acre-feet and a low hazard potential, making it a crucial asset in managing water resources in the region.
Managed and funded by the Natural Resources Conservation Service, the Upper Big Spring Subws Str R-7-2 features an uncontrolled spillway with a width of 75 feet and uncontrolled outlet gates. With a moderate risk assessment rating of 3, this dam plays a vital role in mitigating flood risks in the area. Although not state-regulated or inspected, the structure meets the guidelines for emergency action plans and is an essential component of the local water resource management system.
Climate and water resource enthusiasts will appreciate the significance of the Upper Big Spring Subws Str R-7-2 in reducing flood risks and safeguarding the surrounding communities. As part of the flood risk reduction infrastructure, this dam contributes to the overall resilience of the region against extreme weather events. With its strategic location and design, the Upper Big Spring Subws Str R-7-2 stands as a testament to the importance of effective water resource management in mitigating the impacts of climate change.
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 Upper Big Spring Subws Str R-7-2 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Wolf River At Lagrange | 131 cfs | → |
| Coldwater River Nr Olive Branch | 524 cfs | → |
| Wolf River At Rossville | 409 cfs | → |
| Little Tallahatchie River At Etta | 121 cfs | → |
| Nonconnah Creek Near Germantown | 402 cfs | → |
| Wolf River At Germantown | 592 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Upper Big Spring Subws Str R-7-2.
Boat launches
Campgrounds
Track Upper Big Spring Subws Str R-7-2 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 Upper Big Spring Subws Str R-7-2
Where does the data for Upper Big Spring Subws Str R-7-2 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 Low 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 Upper Big Spring Subws Str R-7-2.