Rochester Sewage Lagoon Dam dam
Rochester Sewage Lagoon Dam
The Rochester Sewage Lagoon Dam in New Hampshire is a significant earth dam completed in 1980, primarily serving purposes beyond traditional water resource management. Owned by the local government and regulated by the NHDES Dam Bureau, this dam stands at a height of 10 feet and has a storage capacity of 265 acre-feet. With a surface area of 23 acres, this dam plays a vital role in the region's infrastructure, ensuring water quality control and environmental protection.
Despite being classified as having a significant hazard potential, the Rochester Sewage Lagoon Dam maintains a satisfactory condition assessment, last updated in October 2016. Inspected every four years, this dam faces high-risk assessment due to its critical role in the local community. With no spillway and a maximum discharge capacity of 0, the dam's risk management measures are closely monitored to ensure the safety of those living downstream.
Local representatives like Chris Pappas (D) are tasked with overseeing the dam's operations and maintenance to prevent any potential emergencies. The Rochester Sewage Lagoon Dam serves as a crucial piece of infrastructure to manage wastewater and protect the environment, highlighting the importance of sustainable water resource management practices in the face of climate change challenges.
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 Rochester Sewage Lagoon Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Cocheco River Near Rochester | 97 cfs | → |
| Isinglass R At Rochester Neck Rd | 53 cfs | → |
| Oyster River Near Durham | 11 cfs | → |
| Lamprey River Near Newmarket | 119 cfs | → |
| Winnicut River At Greenland | 17 cfs | → |
| Mousam River Near West Kennebunk | 225 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Rochester Sewage Lagoon Dam.
Boat launches
- Cathy Schiro O'Brien Cross Country Running Trail Dover
- Willand Pond Boat Launch
- Swains Lake Boat Launch
- Baxter Lake Boat Launch
- Canaan Back Road Barrington
- Salmon Falls River Boat Launch
Campgrounds
- Old Stage Campground
- Saddleback Campground
- Remote Campsite
- Green Tops Campground
- Tidewater Campground
- Salisbury State Park Reservation
Track Rochester Sewage 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 Rochester Sewage Lagoon Dam
Where does the data for Rochester Sewage 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 Rochester Sewage Lagoon Dam.