Autumn Lake Dam dam
Autumn Lake Dam
Autumn Lake Dam, located in Bagnell, Missouri, was completed in 1972 and stands at a height of 30 feet. The dam serves primarily for recreational purposes, with a storage capacity of 80 acre-feet and a normal storage level of 42 acre-feet. Situated on the TR-OSAGE RIVER, the dam has a low hazard potential and is classified as an Earth dam with a Buttress core type.
Owned privately, Autumn Lake Dam is not regulated or permitted by the state, and inspections have not been conducted. Despite its low hazard potential, the dam's condition assessment is not rated, and there is no Emergency Action Plan (EAP) in place. The dam does not have any associated structures and has not been modified in recent years.
With its picturesque location and significant recreational value, Autumn Lake Dam provides a serene escape for water resource and climate enthusiasts to enjoy the beauty of the surrounding area while also raising important questions about the need for proper maintenance and oversight to ensure the safety and longevity of such structures in the face of changing environmental conditions.
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 Autumn Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Osage River Near Bagnell | 7,750 cfs | → |
| Niangua River At Tunnel Dam Near Macks Creek | 367 cfs | → |
| Osage River Below St. Thomas | 9,920 cfs | → |
| Gasconade River Near Hazelgreen | 332 cfs | → |
| Moreau River Near Jefferson City | 68 cfs | → |
| Lamine River Near Otterville | 81 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Autumn Lake Dam.
Boat launches
- Shawnee Bend Access Boat Ramp
- Cofman Beach Access Boat Ramp
- Bluebird 17, Lake Ozark
- Bagnell Dam Access Boat Ramp
- Chaney Road Lake Ozark
- Us 54 Osage Beach
Campgrounds
- Lake Of The Ozarks Military
- Lake Of The Ozarks State Park
- Versailles City Park
- Ho-Humm Canoe Rental & Campground
Track Autumn 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 Autumn Lake Dam
Where does the data for Autumn 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 Autumn Lake Dam.