Mockingbird Hill Lake Dam dam
Mockingbird Hill Lake Dam
Mockingbird Hill Lake Dam in Yell, Arkansas, is a remarkable structure designed by USDA NRCS to serve as a water supply for the area. Completed in 1958, this earth dam stands at a height of 24 feet with a hydraulic height of 19 feet, providing a storage capacity of 144 acre-feet. Situated along the Petit Jean River, this dam plays a crucial role in water resource management in the region.
With a low hazard potential and a moderate risk assessment rating, Mockingbird Hill Lake Dam is a vital component of the local infrastructure. Although not regulated by the state, the dam's primary purpose of water supply underscores its importance for the community. Despite being uncontrolled, the spillway is designed to handle a maximum discharge of 1677 cubic feet per second, ensuring the safety and stability of the structure.
Owned and operated by a private entity, Mockingbird Hill Lake Dam represents a collaborative effort between various agencies, including the Natural Resources Conservation Service. While its condition assessment is not rated, the dam continues to fulfill its intended function effectively. For water resource and climate enthusiasts, this dam serves as a fascinating example of sustainable infrastructure supporting the needs of the community while minimizing potential risks.
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 Mockingbird Hill Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Petit Jean River At Danville | 910 cfs | → |
| Fourche Lafave River Near Aplin | 388 cfs | → |
| Dutch Creek At Waltreak | · | → |
| West Fork Point Remove Creek Near Hattieville | 110 cfs | → |
| Illinois Bayou Near Scottsville | 308 cfs | → |
| Alum Fork Saline River Near Reform | 2 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mockingbird Hill Lake Dam.
Boat launches
- Lake Front Drive Illinois Township
- Wildlife Observation Trail Pope County
- Piney Bay Campground Johnson County
- Cove Lake Bathhouse Road Logan County
- County Road 539 Yell County
- Cane Creek Recreation Road 2199, Logan County
Campgrounds
- Mount Nebo State Park
- Lake Dardanelle State Park
- Riverview - Lake Dardanelle
- Carter Cove
- County Line
- Quarry Cove
Fishing spots
Paddle runs
- Headwaters Sec 2, T2n, R18w To Forest Road 132c
- Headwaters Sec 2, T1n, R20w To Sec 7, T1n, R19w
- Forest Road 132c To Forest Raod 179
- Lake Winona Dam To Southern Line Of Sec 16, T2n, R17w
- Forest Road 179 To East Line Of Nw 1/4 Sec 22, T2n, R17w
- East Line Of Nw 1/4, Sec 22, T2n, R17w To West Line Of Sec 26, T2n, R17w
Track Mockingbird Hill 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 Mockingbird Hill Lake Dam
Where does the data for Mockingbird Hill 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 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 Mockingbird Hill Lake Dam.