Lower Hadlock Pond dam
Lower Hadlock Pond
Lower Hadlock Pond in Hancock, Maine, is a concrete dam built in 1934 primarily for water supply purposes. The dam stands at a height of 12 feet and has a hydraulic height of 10 feet, with a length of 320 feet. The pond has a storage capacity of 180 acre-feet, with a normal storage level of 126 acre-feet and a surface area of 37 acres. The dam is regulated by the Maine Emergency Management Agency and undergoes regular inspections to ensure its satisfactory condition and low hazard potential.
Located on Hadlock Brook, Lower Hadlock Pond provides a vital water source for the surrounding area. The dam is state-regulated and permitted, with enforcement and inspection measures in place to ensure its safety and functionality. Despite its age, the dam has been well-maintained and meets regulatory guidelines, with a last inspection date in August 2018 and a condition assessment date in October 2010. The pond serves as a crucial resource for water supply and contributes to the overall water management system in the region.
Lower Hadlock Pond not only fulfills its primary purpose of water supply but also adds to the scenic beauty of the landscape. With its concrete structure and gravity design, the dam has stood the test of time and continues to provide a reliable source of water for the community. Managed by a public utility, the pond's associated structures are well-maintained, and the dam's risk assessment remains low, ensuring the safety and security of this essential water resource for years to come.
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 Lower Hadlock Pond -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Narraguagus River At Cherryfield | 338 cfs | → |
| Ducktrap River Near Lincolnville | 35 cfs | → |
| East Br Bear Brook Near Beddington | 0 cfs | → |
| West Br Bear Brook Near Beddington | 1 cfs | → |
| Libby Brook Near Northfield | 8 cfs | → |
| Kenduskeag Stream Near Bangor | 251 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lower Hadlock Pond.
Boat launches
- Eagle Lake Carriage Road Bar Harbor
- Great Cove Drive 116, Brooklin
- Town Landing Sedgwick
- Little Deer Isle Road 204, Deer Isle
- Pinkham Bay Bridge Road 71, Steuben
- Point Lookout Road 155, Isle Au Haut
Track Lower Hadlock 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 Lower Hadlock Pond
Where does the data for Lower Hadlock 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 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 Lower Hadlock Pond.