Cross Power dam
Cross Power
Cross Power, also known as the Cascade Cross Power Station Dam, is a significant hydroelectric facility located in Coos, New Hampshire along the Androscoggin River. This concrete gravity dam, completed in 1903, stands at a height of 25 feet and stretches 467 feet in length, with a storage capacity of 120 acre-feet. Operated by the Federal Energy Regulatory Commission, this dam plays a crucial role in generating clean energy for the region.
With a high hazard potential and a moderate risk assessment rating, Cross Power is closely monitored and regulated by the NHDES Dam Bureau and FERC. Despite its age, the dam remains in good condition and is regularly inspected to ensure its safety and functionality. The dam's uncontrolled spillway, with a width of 325 feet, can handle a maximum discharge of 24,000 cubic feet per second, making it a key structure for managing water flow in the area.
As a key part of New Hampshire's hydroelectric infrastructure, Cross Power serves as a testament to the enduring importance of sustainable energy generation and water resource management. Its role in providing renewable power and regulating water flow highlights the intersection of environmental conservation and energy production, making it a vital asset for both the local community and the broader 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 Cross Power -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Androscoggin River Near Gorham | 4,290 cfs | → |
| Wild River At Gilead | 239 cfs | → |
| Upper Ammonoosuc River Near Groveton | 617 cfs | → |
| Androscoggin River At Errol | 3,610 cfs | → |
| Ellis River At South Andover | 383 cfs | → |
| Ammonoosuc River At Bethlehem Junction | 311 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Cross Power .
Boat launches
- Overlook Road 123, Milan
- Nay Pond Boat Launch
- Milan
- Androscoggin River Boat Launch
- Androscoggin River (Pontook Reservoir) Boat Launch
- Basin Brook Dam Boat Launch
Campgrounds
- Trident Col Tentsite
- Moose Brook State Park
- Gentian Pond Shelter
- Rattle River Shelter
- Milan Hill State Park
- Barnes Field Group Campground
Track Cross Power 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 Cross Power
Where does the data for Cross Power 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 Cross Power .