Haven Hill Lake Dam dam
Haven Hill Lake Dam
Haven Hill Lake Dam in Union Lake, Michigan, is a state-regulated structure with a primary purpose of recreation. Completed in 1924, this Earth dam stands at 7.5 feet tall with a hydraulic height of 7 feet and a structural height of 7.5 feet. The dam spans 285 feet in length and has a storage capacity of 215 acre-feet, with a normal storage level of 115 acre-feet.
Despite its low hazard potential, the dam's condition assessment is rated as poor, indicating a need for maintenance and repairs. The last inspection in October 2020 revealed this assessment, with a moderate risk level assigned. With a drainage area of 2 square miles and a maximum discharge capacity of 130 cubic feet per second, Haven Hill Lake Dam plays a crucial role in managing water resources in the region. Enthusiasts of water resources and climate will find this dam's history and specifications intriguing, particularly in understanding its impact on the surrounding environment and community.
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 Haven Hill Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Huron River At Milford | 73 cfs | → |
| Huron River Near New Hudson | 105 cfs | → |
| Upper River Rouge At Farmington | 9 cfs | → |
| Clinton River At Auburn Hills | 125 cfs | → |
| Huron River Near Hamburg | 205 cfs | → |
| River Rouge At Birmingham | 13 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Haven Hill Lake Dam.
Boat launches
- White Lake, 540 Acres, Oakland County
- Alderman Lake Boat Landing Oakland County
- Pettibone Lake Boat Launch Oakland County
- Cedar Island Lake, 144 Acres, Oakland County
- Pettibone Lake Road Highland
- Pontiac Lake -N, 585 Acres, Oakland County
Campgrounds
- Highland State Rec Area
- Pontiac Lake State Rec Area
- Pontiac Lake Recreation Area Group Campground
- Pontiac Lake Recreation Area Modern Campground
- Camp Dearborn
- Proud Lake State Rec Area
Fishing spots
Track Haven Hill 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 Haven Hill Lake Dam
Where does the data for Haven Hill 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 Haven Hill Lake Dam.