Cellu Company Dam dam
Cellu Company Dam
Located in East Hartford, Connecticut, the Cellu Company Dam, also known as the Scotland Road Dam, is a private structure built in 1950 primarily for water supply purposes on the Hockanum River. Standing at a height of 12.2 meters and with a length of 120 meters, the dam has a storage capacity of 295 acre-feet, serving as a vital resource for the region's water needs. The dam's significant hazard potential and fair condition assessment highlight the importance of regular inspections and maintenance to ensure its safety and functionality.
Managed by the Connecticut Department of Energy and Environmental Protection (DEEP), the Cellu Company Dam plays a crucial role in water resource management in Hartford County. With a normal storage capacity of 140 acre-feet and a maximum discharge of 1870 cubic feet per second, the dam serves as a key infrastructure for flood control and water supply regulation in the area. Despite its fair condition assessment, the dam's emergency action plan and risk management measures should be regularly updated and maintained to mitigate potential risks and ensure the safety of surrounding communities.
As an Earth-type dam with a spillway width of 100 meters, the Cellu Company Dam's location on the Hockanum River underscores its importance in the local ecosystem and water supply network. With its significant hazard potential and fair condition, continued monitoring and maintenance are essential to safeguard its structural integrity and functionality. Water resource and climate enthusiasts can appreciate the critical role that the Cellu Company Dam plays in supporting the region's water supply needs and environmental sustainability efforts.
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 Cellu Company Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Hockanum River Near East Hartford | 82 cfs | → |
| North Branch Park R At Hartford | 9 cfs | → |
| Broad Brook At Broad Brook | 18 cfs | → |
| Farmington River At Tariffville | 569 cfs | → |
| Stony Brook Near West Suffield | 5 cfs | → |
| Connecticut River At Thompsonville | 26,800 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Cellu Company Dam.
Boat launches
- New State Road Trail Manchester
- Wilbur Cross Highway East Hartford
- East River Drive East Hartford
- Bissell Bridge (Connecticut River)
- Bolton Lake (Lower)
- Batterson Park Pond
Campgrounds
- Beech Grove 5
- Primitve Camping Area
- Deep Campsite
- Wilderness Lake Campground
- Camp Farnam
- Roaring Brook Camp Area
Fishing spots
- Great Brook Reservoir
- Lower Fulton Park Pond
- Lake Quassapaug
- Seymour Reservoir Number 4
- Reservoir Number 2
- Seymour Reservoir Number 2
Paddle runs
- Begins Below The Tailrace Of The Rainbow Dam To The Confluence With The Connecticut River
- The Confluence Of The East And West Branches To The Confluence With The Farmington River In East Granby
- Begins Below The Tailrace Of The Lower Collinsville Dam To The Route 187 Bridge
- 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 Cellu Company Dam 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 Cellu Company Dam
Where does the data for Cellu Company Dam 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 Cellu Company Dam.