Patte Mill Dam dam
Patte Mill Dam
Located in Albany Township, Maine, the Patte Mill Dam is a stone dam completed in 1880 with a primary purpose of serving as a Fish and Wildlife Pond. Managed by the Forest Service, this dam stands at a height of 13 feet and has a normal storage capacity of 150 acre-feet. The dam, situated on Patte Brook, covers a surface area of 30 acres and has a drainage area of 2.1 square miles.
With a low hazard potential and a moderate risk assessment rating, the Patte Mill Dam has undergone structural modifications in 2002 to ensure its safety and functionality. The dam features an uncontrolled spillway with a width of 5 feet and a maximum discharge capacity of 2460 cubic feet per second. Despite not being rated for its condition assessment, the dam is regularly inspected by the Forest Service, with the last inspection conducted in August 2008 with an inspection frequency of every 10 years.
For water resource and climate enthusiasts, the Patte Mill Dam presents an interesting case study in dam management and safety. With its historical significance dating back to the 19th century, the dam continues to serve its primary purpose while also providing recreational opportunities. As a regulated structure in Maine, the dam's risk assessment and management measures highlight the importance of maintaining infrastructure for both human and environmental benefit in the face of changing climate conditions.
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 Patte Mill Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Wild River At Gilead | 194 cfs | → |
| Little Androscoggin River Near South Paris | 149 cfs | → |
| Ellis River At South Andover | 318 cfs | → |
| Androscoggin River Near Gorham | 2,930 cfs | → |
| Androscoggin River At Rumford | 5,730 cfs | → |
| Swift River Near Roxbury | 190 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Patte Mill Dam.
Boat launches
- Rowe Hill Road Woodstock
- Basin Brook Dam Boat Launch
- Norway Road Harrison
- Singepole Trail Paris
- Power House Road, Bridgton
- Pismo Beach Road 38, Oxford
Campgrounds
- Crocker Pond Campground
- Crocker Pond
- Bethel Outdoor Adventures And Campground
- Hastings Campground
- Hastings
- Hasting Campgrounds
Paddle runs
- Headwaters At Profile Lake To Southern Boundary Of Franconia Notch State Park
- Woodstock/Thornton Town Line To Thornton Railroad Bridge
- Thornton Railroad Bridge To Bridgewater/Bristol Town Line
More reservoirs
Track Patte Mill 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 Patte Mill Dam
Where does the data for Patte Mill 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 Low 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 Patte Mill Dam.