Neshoto dam
Neshoto
Neshoto, also known as Shoto, is a private-owned dam located on the West Twin River in Manitowoc, Wisconsin. Constructed in 1914, this gravity dam stands at a height of 15 feet with a hydraulic height of 9 feet, serving as a vital structure for water resource management in the area. With a storage capacity of 440 acre-feet and a drainage area of 155 square miles, Neshoto plays a crucial role in controlling the flow of water and ensuring water security for the region.
Despite its age, Neshoto is regularly inspected and maintained by the Wisconsin Department of Natural Resources to ensure its structural integrity and functionality. The dam has a high hazard potential, indicating the potential risks associated with its failure, but its current condition is assessed as fair. Emergency action plans are in place, although last updated in 2012, to mitigate risks and respond effectively in case of emergencies. With a very high risk assessment rating of 1, Neshoto remains a critical infrastructure for water management in the region, requiring ongoing monitoring and maintenance to mitigate potential risks and ensure the safety of surrounding communities.
In conclusion, Neshoto serves as a significant gravity dam on the West Twin River, providing essential water storage and management functions for Manitowoc, Wisconsin. Despite its age and high hazard potential, the dam is actively regulated, inspected, and maintained to ensure its safety and functionality. With a strong risk assessment and emergency preparedness measures in place, Neshoto continues to play a crucial role in water resource management and climate resilience efforts 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 Neshoto -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Manitowoc River At Manitowoc | 246 cfs | → |
| Kewaunee River Near Kewaunee | 78 cfs | → |
| East River At Ct Highway Zz Near Greenleaf | 8 cfs | → |
| Otter Creek At Willow Road Near Plymouth | 31 cfs | → |
| Fox River At Oil Tank Depot At Green Bay | 11,300 cfs | → |
| Sheboygan River At Sheboygan | 271 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Neshoto.
Boat launches
- Veteran's Park
- Paddler's Park
- Lake Michigan -- Manitowoc Marina
- Lake Michigan -- Red Arrow City Park
- Silver Lake -- Access At Just Off Hwy 151 Manitowoc
- Tuma Lake -- Access At End Of Lake Rd
Campgrounds
- Seagull Marina Campground
- Point Beach State Forest Campground
- Rainbow's End Campground
- Camp Rokilio Main/Visitor Entrance
- Camp Rokilio Vendor/Delivery Entrance
- Teepee
More reservoirs
Track Neshoto 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 Neshoto
Where does the data for Neshoto 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 High 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 Neshoto.