Long Lake Dam dam
Long Lake Dam
Long Lake Dam, also known as Long Lake Control Structure, is a private recreational dam located in Oakland, Michigan. Completed in 1965, this earth dam stands at a height of 10 feet with a hydraulic height of 4.6 feet, serving primarily for recreational purposes. With a storage capacity of 500 acre-feet, it offers a surface area of 166 acres and a maximum discharge of 24 cubic feet per second. The structure features a controlled spillway with a width of 2 feet, ensuring the safety and stability of the dam.
Despite its low hazard potential and satisfactory condition assessment, Long Lake Dam is classified as having a very high risk level, highlighting the need for effective risk management measures. While it is not regulated or inspected by the state, the dam undergoes inspections every five years to maintain its safety standards. The dam's emergency action plan status, inundation maps, and risk assessment details are currently not specified, indicating room for improvement in emergency preparedness and mitigation strategies. As a significant part of the Long Lake Outlet, this dam serves as a vital asset for the local community's recreational activities and water resource management.
In the heart of Oakland, Michigan, Long Lake Dam stands as a testament to the importance of sustainable water resource utilization and climate resilience. With its historical significance dating back to the 1960s, this private dam continues to provide a safe and enjoyable recreational environment for residents and visitors alike. As efforts to enhance emergency preparedness and risk management continue, Long Lake Dam remains a valuable asset for both recreational purposes and water conservation endeavors in 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 Long Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Huron River At Milford | 73 cfs | → |
| Upper River Rouge At Farmington | 11 cfs | → |
| Clinton River At Auburn Hills | 87 cfs | → |
| River Rouge At Birmingham | 13 cfs | → |
| Huron River Near New Hudson | 105 cfs | → |
| River Rouge At Southfield | 96 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Long Lake Dam.
Boat launches
- Union Lake, 465 Acres, Oakland County
- Cedar Island Lake, 144 Acres, Oakland County
- Elizabeth Lake Road Waterford Township
- Ladue Street Waterford Township
- Wolverine Lake, 241 Acres, Oakland County
- Pontiac Lake -N, 585 Acres, Oakland County
Campgrounds
- Pontiac Lake Recreation Area Modern Campground
- Proud Lake State Rec Area
- Pontiac Lake Recreation Area Group Campground
- Pontiac Lake State Rec Area
- Highland State Rec Area
- Camp Dearborn
Fishing spots
Track Long 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 Long Lake Dam
Where does the data for Long 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 Long Lake Dam.