Long Slough Dam dam
Long Slough Dam
Long Slough Dam, located in Miller County, Arkansas, was completed in 1973 and serves as a recreational site along the Sulphur River. This earth dam stands at a height of 13 feet with a hydraulic height of 7 feet, providing a storage capacity of 260 acre-feet. Despite its low hazard potential, the dam's condition assessment remains unrated, highlighting the need for further inspection and maintenance.
Managed by the state government, Long Slough Dam does not fall under federal jurisdiction, with no associated federal funding or regulatory oversight. The dam's primary purpose is for recreation, offering visitors opportunities for fishing, boating, and wildlife observation in the surrounding area. While there are no outlet gates or locks associated with the dam, its proximity to the Sulphur River makes it a vital water resource for the local community.
In the realm of water resource and climate conservation, Long Slough Dam serves as a reminder of the importance of maintaining and monitoring infrastructure for recreational and ecological purposes. With its serene location and modest storage capacity, this earth dam plays a crucial role in preserving the natural beauty of Miller County while providing a safe recreational space for residents and visitors 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 Long Slough Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Sulphur Rv Nr Texarkana | 2,030 cfs | → |
| Red River At Spring Bank | 4,840 cfs | → |
| Red River At Index | 2,310 cfs | → |
| Anderson Ck At Hwy 98 Nr Simms | 398 cfs | → |
| Big Cypress Ck Abv Sh 43 Nr Karnack | 178 cfs | → |
| Black Cypress Bayou At Jefferson | 38 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Long Slough Dam.
Boat launches
- Smith Park Road Miller County
- Blackman Ferry Road Miller County
- Miller County
- County Road 151 Miller County
- Cass County
- Mercer Bayou Boat Ramp #2
Campgrounds
- Rocky Point - Wright Patman Lake
- Piney Point - Wright Patman Lake
- Cass County Park
- Intake Hill Park- Wright Patman Lake
- Clear Springs - Wright Patman Lake
- Atlanta State Park
Track Long Slough 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 Long Slough Dam
Where does the data for Long Slough 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 Long Slough Dam.