Sd Noname 128 dam
Sd Noname 128
Sd Noname 128 is a privately owned earth dam located on the TR-RAPID CREEK in Pennington, South Dakota. Built in 1955, this dam stands at a height of 13 feet and has a storage capacity of 67 acre-feet. It serves the primary purpose of water resource management in the area, with normal storage levels at 25 acre-feet. The dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and undergoes regular inspections, enforcement, and permitting processes to ensure its safety and compliance with state regulations.
Managed by the Natural Resources Conservation Service, Sd Noname 128 has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. It has a maximum discharge capacity of 546 cubic feet per second and a length of 600 feet. While the dam does not have an Emergency Action Plan (EAP) prepared or updated, it meets state guidelines for risk management measures. The dam is situated within the jurisdiction of South Dakota and is not under the ownership of any federal agency, highlighting its private ownership and management for water resource conservation and climate resilience in the region.
Overall, Sd Noname 128 plays a crucial role in regulating water flow and storage on the TR-RAPID CREEK, contributing to the overall water resource management efforts in Pennington, South Dakota. With its low hazard potential and state-regulated status, the dam serves as a key infrastructure for maintaining water levels and mitigating potential risks in the area. As a privately owned structure, it showcases the importance of collaboration between private entities and state agencies in safeguarding water resources and addressing climate-related challenges 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 Sd Noname 128 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Rapid Cr Bl Sewage Treatment Pl Nr Rapid City | 40 cfs | → |
| Rapid Cr Near Farmingdale Sd | 20 cfs | → |
| Rapid Cr At Rapid City Sd | 88 cfs | → |
| Elk Cr Nr Rapid City Sd | 13 cfs | → |
| Cleghorn Springs At Rapid City | 9 cfs | → |
| Rapid Cr Above Canyon Lake Near Rapid City Sd | 64 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Sd Noname 128.
Boat launches
- Calvert Road Pennington County
- Sheridan Lake Road 16451, Rapid City
- Pennington County
- Fsr 450 Pennington County
- Jenney Gulch Picnic Area Fishing Access
Campgrounds
- Ellsworth Afb Military
- Rapid City - Black Hills Koa
- Central States Fairgrounds
- Little Jon Park
- Canyon Lake Cottages
- Sheridan Lake North Cove (Group Sites) Campground
Track Sd Noname 128 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 Sd Noname 128
Where does the data for Sd Noname 128 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 Sd Noname 128.