Westfork Main Dam dam
Westfork Main Dam
Westfork Main Dam, located in Reynolds, Missouri, serves as a private structure regulating the flow of the West Fork Black River. Completed in 1992, this buttress dam stands at a height of 132 feet and spans 800 feet in length, with a storage capacity of 7500 acre-feet and a drainage area of 685 square miles. The dam's primary purpose is to manage tailings, ensuring the safety and stability of the surrounding area.
Managed by the DAM AND RESERVOIR SAFETY PROG, the Westfork Main Dam has been inspected regularly, with the most recent assessment in May 2018 deeming its condition satisfactory. Despite its high hazard potential, the dam's risk assessment is categorized as moderate. Furthermore, the presence of an uncontrolled spillway with a width of 50 feet allows for the safe discharge of excess water. With its strategic location and efficient design, Westfork Main Dam continues to play a crucial role in water resource management and climate resilience efforts within the region.
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 Westfork Main Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| East Fork Black River Nr Lesterville | 9 cfs | → |
| East Fork Black River At Lesterville | 44 cfs | → |
| Logan Creek At Ellington | 6 cfs | → |
| Black River Near Annapolis | 303 cfs | → |
| Current River Above Akers | 315 cfs | → |
| Jacks Fork At Eminence | 275 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Westfork Main Dam.
Boat launches
- Enough Boat Launch And Trailhead
- Council Bluff Lake Trail Washington County
- Shannon County
- Ozark Trail - Marble Creek Section Iron County
- State Highway B Shannon County
- State Highway 106 Shannon County
Campgrounds
- Sutton Bluff
- Sutton Bluff Recreation Area
- Ozark Trail Gunstock Hollow
- Loggers Lake Recreation Area
- Loggers Lake
- Little Scotia Dispersed
Fishing spots
- Huzzah Ponds
- Howell Lake
- Parole Lake
- Crane Lake Recreation Area
- Timberline Lake
- Beaver Lake Recreation Area
Paddle runs
- Confluence With Alley Spring (Branch) To Confluence With Current River (Does Not Include River Segment In Gap Between Parkland Units)
- The Most Upstream Portion Of Ozark National Scenic Riverways To The Most Downstream Portion Of Ozark National Scenic Riverways
- Forest Boundary At North Section Line Of Sec 4, T33n, R5e To Forest Boundary At South Section Line Of Sec 35, T32n, R5e
- State Highway 49 Bridge Near Dillard, Missouri To Forest Boundary In Sections 13/24, T38n, R3w
- Markam Spring Recreation Area To Nf Boundary
- Western Edge Of Ozark National Scenic Riverways To Confluence With Alley Spring (Branch)
Track Westfork Main 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 Westfork Main Dam
Where does the data for Westfork Main 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 Westfork Main Dam.