Upper Mulberry River Ws Str. # 11 dam
Upper Mulberry River Ws Str. # 11
Upper Mulberry River WS Str. # 11, also known as Little Mulberry Park Lane, is a state-owned structure located in Gwinnett, Georgia, along the Little Mulberry River. Constructed in 1970 by the Soil Conservation Service (SCS), this earth dam stands at a height of 46.3 feet and spans a length of 740 feet, providing flood risk reduction for the surrounding area. With a storage capacity of 3,890 acre-feet and a drainage area of 4,105 acres, this dam plays a crucial role in managing water resources in the region.
Despite its satisfactory condition assessment as of March 2017, Upper Mulberry River WS Str. # 11 has a high hazard potential, indicating the importance of regular inspections and maintenance to ensure its continued effectiveness in flood risk reduction. The dam operates with uncontrolled spillways and outlet gates, highlighting the need for proactive risk management measures. The structure is regulated by the Georgia Safe Dams Program, with state permitting, inspection, and enforcement in place to uphold safety standards and protect the surrounding community from potential risks associated with dam failure.
As a key component of water resource management in the area, Upper Mulberry River WS Str. # 11 serves as a critical infrastructure for flood control along the Little Mulberry River. With its moderate risk assessment and state oversight, this dam underscores the importance of maintaining and monitoring our water infrastructure to safeguard against potential hazards and ensure the sustainable management of our water resources in the face of changing climate conditions.
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 Mulberry River Ws Str. # 11 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Wheeler Creek At Bill Cheek Road | 1 cfs | → |
| Apalachee River At Fence Road | 2 cfs | → |
| Alcovy River Near Lawrenceville | 8 cfs | → |
| Alcovy River At New Hope Road | 20 cfs | → |
| Level Creek At Suwanee Dam Road | 2 cfs | → |
| Suwanee Creek At Suwanee | 22 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Upper Mulberry River Ws Str. # 11.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Upper Mulberry River Ws Str. # 11
Where does the data for Upper Mulberry River Ws Str. # 11 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 High 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 below 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.
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.