Lower Little Black G-2 Dam dam
Lower Little Black G-2 Dam
Located in Ripley, Missouri, the Lower Little Black G-2 Dam is a privately owned structure designed by the USDA NRCS to mitigate flood risks along Harris Creek. Completed in 1999, this earth dam stands at a height of 55 feet with a length of 750 feet, providing flood risk reduction for the surrounding area. With a storage capacity of 7,441 acre-feet and a drainage area of 9,594 acres, this dam plays a crucial role in managing water resources in the region.
Despite its importance in flood control, the Lower Little Black G-2 Dam has a high hazard potential and an unsatisfactory condition assessment as of March 2021. The dam features an uncontrolled spillway with a width of 200 feet and a slide (sluice gate) outlet gate. Regular inspections are conducted every three years, with the last assessment taking place in August 2017. With a moderate risk assessment score of 3, there is a need for ongoing risk management measures to ensure the safety and effectiveness of this critical infrastructure.
With the potential to impact the surrounding community in case of failure, the Lower Little Black G-2 Dam serves as a reminder of the importance of proper maintenance and monitoring of water infrastructure. As climate change continues to influence weather patterns and increase the frequency of extreme events, the role of dams like this becomes even more significant in safeguarding lives and properties from flooding. As such, ongoing efforts to address the dam's condition and implement risk management measures are essential to ensuring the resilience of this vital water resource asset.
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 Little Black G-2 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Current River At Doniphan | 1,870 cfs | → |
| Little Black River Below Fairdealing | 75 cfs | → |
| Black River Near Corning | 618 cfs | → |
| Black River At Poplar Bluff | 669 cfs | → |
| Black River At Pocahontas | 2,890 cfs | → |
| Elevenpoint River Near Ravenden Springs | 572 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lower Little Black G-2 Dam.
Boat launches
- Clay County Road 179 Corning
- Us 60 Carter County
- East Walnut Street Oregon County
- Highway 142 River Access
- Riverton East River Access
- Us 160 33188, Oregon County
Campgrounds
- Float Camp
- Float Camp Recreation Area
- Deer Leap Recreation Area
- Deer Leap
- Fourche Lake Recreation Area
- Gooseneck
Fishing spots
- Beaver Lake Recreation Area
- Lake Ashbaugh
- Eleven Point River
- Crowley's Ridge State Park
- Lake Frierson
- June Lake
Paddle runs
- The Most Upstream Portion Of Ozark National Scenic Riverways To The Most Downstream Portion Of Ozark National Scenic Riverways
- Markam Spring Recreation Area To Nf Boundary
- Confluence With Alley Spring (Branch) To Confluence With Current River (Does Not Include River Segment In Gap Between Parkland Units)
Track Lower Little Black G-2 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 Little Black G-2 Dam
Where does the data for Lower Little Black G-2 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 Little Black G-2 Dam.