Sherwood dam
Sherwood
Sherwood, located in Adams, Wisconsin, is a local government-owned dam on Fourteen Mile Creek with a primary purpose of recreation. Built in 1968, this earth dam stands at 36 feet high and spans 920 feet in length, providing a storage capacity of 13,800 acre-feet. With a surface area of 246 acres and a drainage area of 91.1 square miles, Sherwood has a significant hazard potential but is currently in satisfactory condition according to a 2019 assessment.
The dam features an uncontrolled spillway with a width of 77 feet and a maximum discharge capacity of 3,844 cubic feet per second. While Sherwood has not been modified in recent years, it undergoes inspections every three years to ensure its operational safety. In the event of an emergency, it is crucial for stakeholders to have an updated Emergency Action Plan in place to mitigate risks associated with the dam's operation and potential inundation scenarios. As water resource and climate enthusiasts, understanding the infrastructure and risk profile of Sherwood is essential for ensuring the sustainable management of this vital water resource.
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 Sherwood -- 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 Sherwood.
Boat launches
- Lake Sherwood -- Access - Near State Hwy 13
- Lake Camelot Boat Landing
- Alpine Drive 817, Town Of Rome
- Lake Arrowhead -- Access Nr 15th Ave And Council Hill Trl
- Petenwell Lake -- Access - Devil's Elbow
- Petenwell Lake -- Access Off County Hwy Z
Campgrounds
- Pineland Camping
- Juneau County Wilderness Park Campground
- Petenwell County Park Main Campground
- Petenwell County Park Annex Campground
- Roche A Cri State Park Campground
- Vista Royalle Campground
More reservoirs
Track Sherwood 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 Sherwood
Where does the data for Sherwood 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 Significant 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 Sherwood.