Hartman Creek Number One dam
Hartman Creek Number One
Located in Waupaca, Wisconsin, Hartman Creek Number One is a state-regulated dam on the Hartman Creek river. Completed in 1939, this gravity dam stands at a height of 10.6 feet and has a storage capacity of 225 acre-feet, making it primarily used for recreation purposes. With a low hazard potential and a very high risk assessment rating, the dam has not been rated for its current condition, but regular inspections have been conducted to ensure its safety.
The dam's controlled spillway type and maximum discharge capacity of 1460 cubic feet per second highlight its importance in managing water flow and preventing flooding in the area. Despite its age, Hartman Creek Number One continues to serve as a vital water resource infrastructure, providing both recreational opportunities and essential water management functions. With the State of Wisconsin overseeing its permitting, inspection, and enforcement processes, the dam remains a key component in the region's water resource and climate resilience efforts.
For water resource and climate enthusiasts, Hartman Creek Number One represents a fascinating blend of historical engineering, environmental stewardship, and recreational value. As a gravity dam with a long-standing presence in the community, its role in water storage, flood control, and habitat preservation makes it an essential piece of the region's water infrastructure. With its risk assessment indicating a high level of importance in the area's water management strategies, Hartman Creek Number One stands as a testament to the ongoing efforts to balance human needs with environmental sustainability in the face of changing climate 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 Hartman Creek Number One -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Waupaca River Near Waupaca | 431 cfs | → |
| Tomorrow River Near Nelsonville | 35 cfs | → |
| Little Wolf River At Royalton | -999,999 cfs | → |
| Wolf River At New London | 2,380 cfs | → |
| Fox River At Berlin | 1,570 cfs | → |
| Tenmile Creek Near Nekoosa | 130 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Hartman Creek Number One.
Boat launches
- Knight Lake -- Channel Access
- Dake Lake -- Access
- Miner Lake -- Access
- West Stratton Road Town Of Dayton
- Taylor Lake -- Access At End Of Pine Ridge Ln
- Fountain Lake -- Access
Track Hartman Creek Number One 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 Hartman Creek Number One
Where does the data for Hartman Creek Number One 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 Hartman Creek Number One.