Lower Nesbit Ferry Lake Dam dam
Lower Nesbit Ferry Lake Dam
Lower Nesbit Ferry Lake Dam, located in Roswell, Georgia, is a privately owned earth dam with a primary purpose of recreation. Built in 1993 by Watts and Browning, this dam stands at a height of 42 feet and spans a length of 315 feet, holding a maximum storage capacity of 256 acre-feet. Despite being classified as having a high hazard potential, the dam's condition assessment as of 2016 was deemed satisfactory.
The dam is regulated by the Georgia Safe Dams Program, with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations. The dam's associated structures, such as spillways and outlet gates, are uncontrolled, contributing to the moderate risk assessment rating of 3. Although the dam has not been modified in recent years, regular inspections occur every two years to monitor its condition and address any potential risks.
Lower Nesbit Ferry Lake Dam serves as a vital recreational resource for the community, offering opportunities for boating, fishing, and other water-based activities. With its scenic location in Fulton County and proximity to the Chattahoochee River, the dam plays a key role in providing a safe and enjoyable outdoor experience for visitors and residents alike.
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 Lower Nesbit Ferry Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Chattahoochee River Above Roswell | 615 cfs | → |
| Big Creek Near Alpharetta | 37 cfs | → |
| Crooked Creek Near Norcross | 2 cfs | → |
| Chattahoochee River Near Norcross | 1,810 cfs | → |
| Chattahoochee River Below Morgan Falls Dam | 1,010 cfs | → |
| N.F. Peachtree Creek At Graves Rd | 0 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lower Nesbit Ferry Lake Dam.
Boat launches
- Chattahochee River Park Peachtree Corners
- Lake Windward Landing 139, Alpharetta
- Saint Ives Country Club Parkway Johns Creek
- Johnson Ferry Road Southeast Sandy Springs
- Riveredge Lane Northwest Sandy Springs
- West Palisades Vinings
Campgrounds
- Dobbins Lakeside Military
- Stone Mountain Park Campground
- Sawnee
- Stone Mountain Campground
- Bald Ridge Creek
- Shoal Creek - Lake Lanier
Fishing spots
Track Lower Nesbit Ferry Lake Dam 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 Lower Nesbit Ferry Lake Dam
Where does the data for Lower Nesbit Ferry Lake Dam 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 Lower Nesbit Ferry Lake Dam.