Mill Pond dam
Mill Pond
Mill Pond, also known as Salt Pond, is a private dam located in Knox, Maine, with a primary purpose of fire protection, stock, or small fish pond. Completed in 1915, this earth dam stands at a height of 20 feet and has a storage capacity of 150 acre-feet. The pond covers a surface area of 15 acres and is situated at the Upper End of Harbor, serving as a vital resource for fish and wildlife in the area.
Managed by the Maine Emergency Management Agency (MEMA), Mill Pond is regulated and permitted by the state, with regular inspections and enforcement measures in place to ensure its safety and functionality. While the condition assessment is currently not rated, the hazard potential is classified as undetermined. With its historical significance dating back over a century, Mill Pond continues to play a crucial role in providing water resources for both fire protection and ecological purposes in the region.
Despite its age, Mill Pond remains a valuable asset in the conservation and management of water resources in Maine. With its rich history, diverse purposes, and state-regulated status, this dam serves as a testament to the importance of sustainable water management practices in the face of climate change and increasing environmental challenges. For water resource and climate enthusiasts, Mill Pond stands as a symbol of resilience and adaptation in the preservation of natural ecosystems and the protection of vital water sources for future generations.
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 Mill Pond -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Ducktrap River Near Lincolnville | 45 cfs | → |
| Sheepscot River At North Whitefield | 434 cfs | → |
| Cobbosseecontee Stream At Gardiner | 845 cfs | → |
| Kennebec River At North Sidney | 15,100 cfs | → |
| Kenduskeag Stream Near Bangor | 344 cfs | → |
| Narraguagus River At Cherryfield | 404 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mill Pond.
Boat launches
- Little Deer Isle Road 204, Deer Isle
- Main Road 332, Isle Au Haut
- Point Lookout Road 155, Isle Au Haut
- Turnpike Drive Camden
- Megunticook Lake
- Pitchpole Trail Camden
Campgrounds
- Camden Hills State Park
- Oceanfront Camping @ Reach Knolls
- Mic Mac Ln, Llc
- Tops'l Farm
- Seawall - Acadia National Park
- Balsam Cove Campground
More reservoirs
Track Mill Pond 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 Mill Pond
Where does the data for Mill Pond 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 Undetermined 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 Mill Pond.