Little River Ws Str #13 dam
Little River Ws Str #13
Situated in Roswell, Georgia, Little River WS Str #13 is a state-owned water structure designed by the Natural Resources Conservation Service to reduce flood risk in the area. Completed in 1964, this earth dam stands at a height of 31.4 feet and has a storage capacity of 623 acre-feet, with a normal storage level of 33.5 feet. Covering a drainage area of 979 square miles, this dam plays a crucial role in managing water flow and preventing flooding in the region.
With a low hazard potential and a moderate risk assessment rating, Little River WS Str #13 has not been rated for condition assessment yet. Despite being uncontrolled, the dam's spillway and outlet gates are designed to manage maximum discharge levels effectively. The last inspection in April 2019 revealed the structure to be in satisfactory condition, with inspection frequency set at every 5 years. Although it is not regulated by the state, this dam serves as a vital component in the overall flood risk reduction strategy for the area.
Overall, Little River WS Str #13 serves as a key flood risk reduction asset in Cherokee County, Georgia, providing crucial protection against potential inundation. Its strategic location and design, along with the operational efficiency of its spillway and outlet gates, make it a significant contributor to water resource management in the region. As climate change continues to impact water systems, structures like Little River WS Str #13 play a vital role in safeguarding communities against the adverse effects of extreme weather events.
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 Little River Ws Str #13 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Big Creek Near Alpharetta | 37 cfs | → |
| Chattahoochee River Above Roswell | 615 cfs | → |
| Noonday Creek At Shallowford Road | 13 cfs | → |
| Etowah River At Canton | 364 cfs | → |
| Noonday Creek At Hawkins Store Rd | 6 cfs | → |
| Chattahoochee River Below Morgan Falls Dam | 1,010 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Little River Ws Str #13.
Boat launches
- Lake Windward Landing 139, Alpharetta
- Johnson Ferry Road Southeast Sandy Springs
- Chattahochee River Park Peachtree Corners
- Saint Ives Country Club Parkway Johns Creek
- Overlook Drive 1 163, 30102
- Riveredge Lane Northwest Sandy Springs
Campgrounds
- Sweetwater - Allatoona Lake
- Victoria - Allatoona Lake
- Payne - Allatoona Lake
- Dobbins Lakeside Military
- Bald Ridge Creek
- Sawnee
Fishing spots
Paddle runs
Track Little River Ws Str #13 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 Little River Ws Str #13
Where does the data for Little River Ws Str #13 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 Little River Ws Str #13.