Hidden Hollow Farm Dam dam
Hidden Hollow Farm Dam
Hidden Hollow Farm Dam, located in Jefferson County, Missouri, serves as a recreational spot along the tributary of Saline Creek. Built in 1988, this earth dam stands at a height of 34 feet and stretches 350 feet in length, with a capacity to store 73 acre-feet of water. Despite being privately owned, the dam is not regulated or inspected by the state, posing a high hazard potential due to its condition being labeled as "Not Rated."
With its uncontrolled spillway and lack of outlet gates, Hidden Hollow Farm Dam presents a moderate risk level, emphasizing the need for proper risk management measures. Even though it falls under the jurisdiction of the Kansas City District, the dam does not have any federal agency involvement in its ownership, funding, design, construction, or regulation. This underlines the importance of private owners taking responsibility for the safety and maintenance of such structures to prevent potential hazards in the future. For water resource and climate enthusiasts, Hidden Hollow Farm Dam is a prime example of the intersection between recreational activities and the imperative need for proper dam safety protocols in ensuring public safety and environmental protection.
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 Hidden Hollow Farm Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Fenton Creek Near Fenton | 1 cfs | → |
| Williams Creek Near Peerless Park | 8 cfs | → |
| Yarnell Creek At Fenton | 1 cfs | → |
| Meramec River Near Eureka | 1,770 cfs | → |
| Fishpot Creek At Valley Park | 0 cfs | → |
| Kiefer Creek Near Ballwin | 1 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Hidden Hollow Farm Dam.
Boat launches
- Allen Road 204, Fenton
- Ellis Grove Parkway Jefferson County
- Allen Road Fenton
- Grand Glaize Pkwy 1084, Valley Park
- Kirkwood
- Lemay Ferry Road Oakville
Campgrounds
- Babler Memorial State Park
- Robertsville State Park
- Klondike County Park
- St. Peters 370 Lakeside Park
- Horseshoe Lake Recreation Area
- Washington State Park
Paddle runs
Track Hidden Hollow Farm 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 Hidden Hollow Farm Dam
Where does the data for Hidden Hollow Farm 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 High 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 Hidden Hollow Farm Dam.