Lake Konomoc Dike dam
Lake Konomoc Dike
Lake Konomoc Dike, located in Montville, Connecticut, is a crucial structure that regulates the flow and storage of water in the Lake Konomoc area. Owned by a public utility, this earth dam stands at a height of 8 feet and stretches for 350 feet, primarily made of stone with a foundation of rock and soil. The dam plays a vital role in the state's water resource management, as it is regulated, permitted, and inspected by the Connecticut Department of Energy and Environmental Protection (DEEP).
Despite its fair condition assessment in 2019, Lake Konomoc Dike poses a high hazard potential, prompting a frequent inspection schedule of every two years. The dam features controlled outlet gates but lacks a spillway, making its risk management measures a critical aspect of its operation. With a high-risk assessment and hazard potential, the dam serves as a key component in the overall water management strategy for the region, ensuring the safety and sustainability of the surrounding area's water resources.
Enthusiasts of water resources and climate will find Lake Konomoc Dike's structural details and risk assessment intriguing, highlighting the importance of maintaining and managing essential infrastructure for water regulation and flood control. As a significant element in Connecticut's water resource management system, the dam's condition and inspection frequency underscore the ongoing efforts to safeguard the region against potential hazards and ensure the sustainable use of water resources in the area.
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 Konomoc Dike -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| East Branch Eightmile River Near North Lyme | 34 cfs | → |
| Eightmile R At North Plain | 25 cfs | → |
| Yantic River At Yantic | 146 cfs | → |
| Shetucket River At Taftville | 1,350 cfs | → |
| Quinebaug River At Jewett City | 1,160 cfs | → |
| Salmon River Near East Hampton | 130 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Konomoc Dike.
Boat launches
- Powers Lake
- Pattagansett Lake
- Horse Pond
- Gardner Lake
- Thames River Boat Launch
- Rogers Lake Public Boat Ramp
Campgrounds
Fishing spots
Paddle runs
- Begins Below The Tailrace Of The Rainbow Dam To The Confluence With The Connecticut River
- Begins Below The Tailrace Of The Lower Collinsville Dam To The Route 187 Bridge
- The Confluence Of The East And West Branches To The Confluence With The Farmington River In East Granby
- The Confluence With The Nepaug River To A Point 0.2 Miles Below The Lower Collinsville Dam Tailrace
- New Hartford/Canton Town Line To The Confluence With The Nepaug River
- The Hartland Headwaters To The Confluence With The Salmon Brook Main Stem
Track Lake Konomoc Dike 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 Konomoc Dike
Where does the data for Lake Konomoc Dike 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 Lake Konomoc Dike.