Lake Arrowhead dam
Lake Arrowhead
Lake Arrowhead, also known as Lake Manchester, is a stunning reservoir located in Rome, Adams County, Wisconsin. Managed by the local government, this body of water serves as a vital source for recreational activities in the area. Completed in 1978, the earth dam stands at a height of 34 feet and has a maximum storage capacity of 4,800 acre-feet, with a normal storage level of 2,700 acre-feet.
With a surface area of 300 acres and a drainage area of 98.8 square miles, Lake Arrowhead is fed by the 14 Mile Creek and has a maximum discharge capacity of 660 cubic feet per second. The spillway, which is uncontrolled, has a width of 15 feet. Despite being classified as having low hazard potential, the dam is regularly inspected and deemed to be in satisfactory condition. The risk assessment for Lake Arrowhead is moderate, with a DSAC risk rating of 3.
Overall, Lake Arrowhead stands as a picturesque destination for water resource and climate enthusiasts alike. From its serene waters to its recreational offerings, this reservoir in Wisconsin is a testament to effective dam management and serves as a model for sustainable water resource utilization 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 Lake Arrowhead -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Tenmile Creek Near Nekoosa | 121 cfs | → |
| Wisconsin River At Wisconsin Rapids | 3,800 cfs | → |
| Yellow River At Babcock | 51 cfs | → |
| Yellow River At Necedah | 270 cfs | → |
| Lemonweir River At New Lisbon | 397 cfs | → |
| Tomorrow River Near Nelsonville | 37 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Arrowhead.
Boat launches
- Lake Arrowhead -- Access Nr 15th Ave And Council Hill Trl
- Petenwell Lake -- Access - Devil's Elbow
- Petenwell Lake -- Access Off County Hwy Z
- Petenwell Lake / Wisconsin River -- Fourteen Mile Creek Access
- Petenwell Lake / Wisconsin River -- Access Off Apache Ln
- Lake Sherwood -- Access - Near State Hwy 13
Campgrounds
- Pineland Camping
- Juneau County Wilderness Park Campground
- Petenwell County Park Main Campground
- Petenwell County Park Annex Campground
- Roche A Cri State Park Campground
- Dexter Park Campground
More reservoirs
Track Lake Arrowhead 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 Lake Arrowhead
Where does the data for Lake Arrowhead 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 Lake Arrowhead.