Conway Treatment Lagoon Dam dam
Conway Treatment Lagoon Dam
Conway Treatment Lagoon Dam, located in Conway, New Hampshire, is a local government-owned structure that serves a critical purpose in water resource management. Built in 1989, this Earth-type dam stands at a height of 6.5 feet and has a storage capacity of 12.3 acre-feet. Despite its relatively small size, the dam plays a significant role in flood control and water storage for the surrounding area.
Managed by the NHDES Dam Bureau, Conway Treatment Lagoon Dam has been deemed to have a significant hazard potential with a fair condition assessment as of 2015. The dam lacks a spillway and is inspected every four years to ensure its structural integrity and safety. With its high risk assessment rating, it is crucial for the local authorities to implement proper risk management measures to mitigate any potential threats and ensure the dam's continued functionality for the community.
For water resource and climate enthusiasts, Conway Treatment Lagoon Dam serves as a noteworthy example of the importance of proper infrastructure in sustainable water management. As climate change continues to pose challenges to water resources, structures like this dam play a vital role in safeguarding communities against flooding and ensuring a reliable water supply. It highlights the ongoing efforts and responsibilities of regulatory agencies and local governments in maintaining and monitoring critical infrastructure to adapt to changing environmental 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 Conway Treatment Lagoon Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Saco River Near Conway | 1,580 cfs | → |
| Bearcamp River At South Tamworth | 198 cfs | → |
| Saco River At Cornish | 7,900 cfs | → |
| East Branch Pemigewasset River At Lincoln | 465 cfs | → |
| Pemigewasset River At Woodstock | 687 cfs | → |
| Wild River At Gilead | 194 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Conway Treatment Lagoon Dam.
Boat launches
- Upper Pea Porridge Pond Boat Launch
- Conway Lake Boat Launch
- Eaton Road 2984, Eaton
- Dam Road Porter
- Ossipee River Boat Launch
- Denmark Road 99, Denmark
Campgrounds
- Covered Bridge Campground
- Blackberry Crossing Campground
- Camp Penacook Shelter
- Jim Liberty Cabin
- Fiddlehead Campground Showers
- Fiddlehead Campground Checkin And Camp Store
Paddle runs
- Woodstock/Thornton Town Line To Thornton Railroad Bridge
- Thornton Railroad Bridge To Bridgewater/Bristol Town Line
- Headwaters At Profile Lake To Southern Boundary Of Franconia Notch State Park
- Begins In Franklin To Sewall's Island
- Sewall's Island To Manchester Street Bridge
Track Conway Treatment Lagoon 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 Conway Treatment Lagoon Dam
Where does the data for Conway Treatment Lagoon 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 Conway Treatment Lagoon Dam.