Rc&D Watershed Structure Y-16 dam
Rc&D Watershed Structure Y-16
Rc&D Watershed Structure Y-16, also known as Yellow River Rc&D WS Str. # Y-16, is a vital water management structure located in Gwinnett, Georgia. Owned by the State and regulated by the GA-SAFE DAMS PROGRAM, this earth dam was completed in 1971 with a primary purpose of flood risk reduction. Standing at a height of 38 feet and stretching 355 feet in length, it has a storage capacity of 1415 acre-feet and serves a drainage area of 1733 square miles.
Despite its high hazard potential, Rc&D Watershed Structure Y-16 is rated as having satisfactory condition as of the last assessment in February 2016. With a moderate risk assessment score of 3, the dam is subject to regular inspections every 2 years to ensure its safety and effectiveness in flood control. While the dam has uncontrolled spillways and outlet gates, its design by the Natural Resources Conservation Service has proven to be reliable in managing water flow and reducing the risk of potential flooding in the area.
As a crucial component in water resource management for the region, Rc&D Watershed Structure Y-16 plays a significant role in safeguarding the surrounding communities from potential flood risks. With its strategic location and design, this dam continues to be a key asset in the overall water management infrastructure, highlighting the importance of proactive monitoring and maintenance to ensure its continued effectiveness in flood risk reduction.
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 Rc&D Watershed Structure Y-16 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Suwanee Creek At Suwanee | 21 cfs | → |
| Alcovy River Near Lawrenceville | 8 cfs | → |
| Level Creek At Suwanee Dam Road | 3 cfs | → |
| Dick Creek At Old Atlanta Rd | 3 cfs | → |
| Apalachee River At Fence Road | 1 cfs | → |
| Richland Creek At Suwanee Dam Road | 6 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Rc&D Watershed Structure Y-16.
Boat launches
- Saint Ives Country Club Parkway Johns Creek
- Chattahochee River Park Peachtree Corners
- Van Pugh North Park
- Lake Windward Landing 139, Alpharetta
- Kings Point Drive Forsyth County
- Browns Bridge Road Forsyth County
Campgrounds
- Shoal Creek - Lake Lanier
- James Shackleford County Park
- Sawnee
- Chestnut Ridge - Lake Lanier
- Shady Grove - Lake Lanier
- Bald Ridge Creek
Fishing spots
Track Rc&D Watershed Structure Y-16 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 Rc&D Watershed Structure Y-16
Where does the data for Rc&D Watershed Structure Y-16 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 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 Rc&D Watershed Structure Y-16.