Scs-Maysville Laterals Site-L4 dam
Scs-Maysville Laterals Site-L4
The SCS-Maysville Laterals Site-L4, located in Garvin County, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS for flood risk reduction on the TR-Washita River. Completed in 1971, this dam stands at a height of 21 feet with a length of 790 feet, providing a storage capacity of 73 acre-feet. Despite its low hazard potential, the dam's risk assessment is rated as very high, indicating the need for careful monitoring and management.
With a controlled spillway and a single valve outlet gate, the SCS-Maysville Laterals Site-L4 has not been inspected since 1980, highlighting the importance of regular maintenance and assessment to ensure its structural integrity. Its primary purpose is flood risk reduction, serving as a vital infrastructure in the region's water resource management. Although currently not rated for condition assessment, the dam's risk management measures and emergency action plan readiness remain unspecified, raising concerns for potential future risks and the need for proactive measures to address them.
As a key component of the Tulsa District's water resource infrastructure, the SCS-Maysville Laterals Site-L4 plays a crucial role in safeguarding the surrounding area from flood hazards. With its state jurisdiction and regulatory oversight by the OWRB, it is essential to prioritize ongoing inspections, risk assessments, and emergency preparedness to ensure the safety and effectiveness of this vital water management asset in Garvin County, Oklahoma.
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 Scs-Maysville Laterals Site-L4 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Washita River Near Pauls Valley | 143 cfs | → |
| Walnut Creek At Purcell | 40 cfs | → |
| Canadian River At Purcell | 289 cfs | → |
| North Criner Creek Near Criner | 0 cfs | → |
| Washita River At Alex | 142 cfs | → |
| Canadian River At Norman | 116 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Scs-Maysville Laterals Site-L4.
Track Scs-Maysville Laterals Site-L4 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 Scs-Maysville Laterals Site-L4
Where does the data for Scs-Maysville Laterals Site-L4 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 Scs-Maysville Laterals Site-L4.