Shirley Lake Dam dam
Shirley Lake Dam
Shirley Lake Dam, located in Boonville, Missouri, is a privately owned earth dam primarily used for irrigation purposes. Completed in 1977, this dam stands at a height of 18 feet and has a capacity to store up to 255 acre-feet of water. Situated on TR-Muddy Creek, this structure serves the Johnson County area and helps in managing water resources for agricultural needs.
With a spillway width of 20 feet and a maximum discharge capacity of 30 cubic feet per second, Shirley Lake Dam is designed to handle controlled water releases in case of excess flow. Despite being classified as a low hazard potential structure with a moderate risk assessment rating, this dam has not been inspected or assessed for its current condition. While it may not be under state regulation or permitting, the dam plays a crucial role in water management for the surrounding area.
As a key component in the local water infrastructure, Shirley Lake Dam serves as a vital resource for irrigation and water supply needs in the region. Its strategic location and capacity offer valuable support to agricultural activities while also contributing to the overall water resource management in Johnson County, Missouri.
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 Shirley Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Big Creek Near Blairstown | 235 cfs | → |
| South Grand River At Urich | 1,000 cfs | → |
| Lamine River Near Otterville | 311 cfs | → |
| Blackwater River At Blue Lick | 254 cfs | → |
| Missouri River At Waverly | 37,900 cfs | → |
| South Grand River At Archie | 2,500 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Shirley Lake Dam.
Boat launches
- Northeast Highway Pp Leesville
- Northwest 575th Road Johnson County
- State Highway Tt Benton County
- Lafayette County
- Benton County
- State Park Road West Benton County
Track Shirley 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 Shirley Lake Dam
Where does the data for Shirley 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 Shirley Lake Dam.