New London Reservoir dam
New London Reservoir
New London Reservoir, located in Huron County, Ohio, is a vital water source managed by the local government. Built in 1975, this Earth type dam stands at a height of 39 feet and boasts a storage capacity of 5,365 acre-feet, providing water supply for the surrounding area. The reservoir covers a surface area of 220 acres and is regulated by the Ohio Department of Natural Resources, ensuring proper inspection, permitting, and enforcement measures are in place.
With a moderate risk assessment rating, the dam's condition was deemed satisfactory during the last inspection in October 2016. Despite its high hazard potential, the reservoir has an uncontrolled spillway and outlet gates, with emergency action plans in place. The surrounding area is at risk of inundation in the event of a breach, highlighting the importance of proper risk management and maintenance practices. Enthusiasts of water resources and climate will appreciate the role that New London Reservoir plays in supporting the region's water supply needs while also recognizing the ongoing efforts to ensure its safety and sustainability.
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 New London Reservoir -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Black Fork Mohican River At Shelby Oh | 10 cfs | → |
| Huron River At Milan Oh | 135 cfs | → |
| Old Woman Creek At Berlin Rd Near Huron Oh | 10 cfs | → |
| Vermilion River Near Vermilion Oh | 123 cfs | → |
| Black River At Elyria Oh | 92 cfs | → |
| Chippewa Creek At Miller Rd At Sterling Oh | 23 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near New London Reservoir.
Boat launches
- New London Reservoir Park/Campground
- Bellevue Reservoir
- Cleveland Road East Vermilion Township
- Vermilion Boat Launch
- Chippewa Lake Boat Launch
- Hot Waters Boat Ramp
Fishing spots
- Charles Mill Lake
- Clear Fork Reservoir
- Bucyrus Reservoirs
- Beaver Creek Upground Reservoir
- Apple Valley Lake
- East 72nd Street Fishing Area
Paddle runs
Track New London Reservoir 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 New London Reservoir
Where does the data for New London Reservoir 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 New London Reservoir.