Maltby Lakes West Dam #3 dam
Maltby Lakes West Dam #3
Maltby Lakes West Dam #3 is a crucial infrastructure located in West Haven, Connecticut, serving as a key water supply source for the area. This earth dam, completed in 1862, stands at a height of 29 feet with a length of 750 feet, providing a storage capacity of 230 acre-feet. The dam is under state regulation by the Department of Energy and Environmental Protection (DEEP), ensuring regular inspections and enforcement to maintain its structural integrity.
With a significant hazard potential and a moderate risk assessment rating, Maltby Lakes West Dam #3 is essential for water resource management in the region. The dam features an uncontrolled spillway with a width of 40 feet and valve outlet gates for water control. Despite its age, the dam's condition assessment remains satisfactory, with the last inspection conducted in November 2019, highlighting its resilience and reliability in serving the community.
Water resource and climate enthusiasts will appreciate the historical significance and strategic importance of Maltby Lakes West Dam #3 in ensuring a reliable water supply for West Haven and its surroundings. As a vital piece of infrastructure with a solid maintenance record and state oversight, this dam plays a crucial role in managing water resources and safeguarding against potential hazards, making it a key asset in the region's environmental and water management efforts.
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 Maltby Lakes West Dam #3 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mill R Nr Hamden | 18 cfs | → |
| Naugatuck River At Beacon Falls | 202 cfs | → |
| Housatonic River At Stevenson | 441 cfs | → |
| Quinnipiac River At Wallingford | 88 cfs | → |
| Rooster River At Fairfield | 4 cfs | → |
| Pootatuck R At Sandy Hook | 18 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Maltby Lakes West Dam #3.
Boat launches
- April Street 3, West Haven
- Main Street Hamden
- Quinnipiac River Front St Boat Ramp
- Park Drive New Haven
- Shipyard Lane Milford
- Sackett Point Road North Haven
Campgrounds
Fishing spots
Paddle runs
- Begins Downstream Of The Borough Of Bantam, At Stoddard Road Bridge To The Confluence With The Shepaug River
- Pond Downstream Of Shepaug Reservoir Dam, Marked By Service Road Bridge To Ends In Backwaters Of Lake Lillinonah, Near Roxbury Falls
- Begins Below The Tailrace Of The Lower Collinsville Dam To The Route 187 Bridge
- The Confluence With The Nepaug River To A Point 0.2 Miles Below The Lower Collinsville Dam Tailrace
- New Hartford/Canton Town Line To The Confluence With The Nepaug River
- Kent Bridge To Boardman Bridge
Track Maltby Lakes West Dam #3 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 Maltby Lakes West Dam #3
Where does the data for Maltby Lakes West Dam #3 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 Maltby Lakes West Dam #3.