Johnsons Draw Ws Scs Site 1 Dam dam
Johnsons Draw Ws Scs Site 1 Dam
Johnsons Draw WS SCS Site 1 Dam, located in Crockett, Texas, is a vital structure designed by the USDA NRCS in 1957 for Flood Risk Reduction on the Johnson Draw river. The dam stands at a height of 40 feet with a structural height of 41 feet and a length of 4000 feet. It has a maximum storage capacity of 11550 acre-feet and a normal storage of 166 acre-feet, serving to mitigate flood risks in the region.
Managed by the local government and regulated by TCEQ, the dam is classified as an Earth dam with stone core types and is inspected every 5 years, with the last inspection in 2016 showing a satisfactory condition. The spillway type is uncontrolled, with a width of 302 feet, and the outlet gates consist of one slide (sluice gate) and two uncontrolled gates. Overall, the dam has a moderate risk assessment rating and plays a crucial role in protecting the surrounding areas from potential flooding events.
Water resource and climate enthusiasts can appreciate the engineering and operational details of the Johnsons Draw WS SCS Site 1 Dam, understanding its significance in flood risk reduction and water management in the region. With its history of construction and maintenance, the dam stands as a testament to the collaborative efforts of government agencies and designers in safeguarding local communities and ecosystems from the impacts of extreme weather events.
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 Johnsons Draw Ws Scs Site 1 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Pecos Rv Nr Sheffield | 3 cfs | → |
| Independence Ck Nr Sheffield | 13 cfs | → |
| Spring Ck Abv Tankersley | 1,220 cfs | → |
| S Concho Rv At Christoval | 7 cfs | → |
| Spring Ck Abv Twin Buttes Res Nr San Angelo | · | → |
| Middle Concho Rv Abv Tankersley | · | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Johnsons Draw Ws Scs Site 1 Dam.
Track Johnsons Draw Ws Scs Site 1 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 Johnsons Draw Ws Scs Site 1 Dam
Where does the data for Johnsons Draw Ws Scs Site 1 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 Not Available 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 Johnsons Draw Ws Scs Site 1 Dam.