Dam Report

Goose Cove Northwest Dike dam

Massachusetts, USA Annisquam River Hazard High
Today high
--
Tonight low
--
Dam height
45ft
Hazard rating
High
Loading current conditions…
Loading next 24 hours…
Loading 7-day outlook…
Goose Cove Northwest Dike -- None dam
Goose Cove Northwest Dike None · Annisquam River
About this dam

Goose Cove Northwest Dike

Goose Cove Northwest Dike in Gloucester, Massachusetts, is a vital earth dam that serves as a water supply source for the surrounding area. Completed in 1963, this structure stands at a height of 45.2 feet and has a hydraulic height of 26 feet, providing a storage capacity of 1140 acre-feet. With a primary purpose of water supply, the dam plays a crucial role in regulating the flow of the Annisquam River.

Managed by the Department of Conservation and Recreation, the Goose Cove Northwest Dike is subject to state regulation, inspection, and enforcement to ensure its proper functioning and safety. Despite its fair condition assessment in 2013, the dam poses a high hazard potential due to its location and size. The risk assessment categorizes it as high (2), highlighting the importance of maintaining and monitoring this critical infrastructure.

Located in Essex County, Massachusetts, the Goose Cove Northwest Dike is a key component of the local water supply system. With its high hazard potential and risk assessment, it is essential for water resource and climate enthusiasts to stay informed about the condition and management of this important earth dam to safeguard the surrounding community and environment.

StateNone
River / streamAnnisquam River
NID IDMA01099
Owner typeLocal Government
Primary purposeWater Supply
Dam typeEarth
Year built1963
Dam height45 ft
Dam length472 ft
Max storage1,140 AF
Normal storage825 AF
Surface area0.1 ac
Drainage area0.7 sq mi
Hazard potentialHigh
ConditionFair
Last inspectionTue, 01 Oct 2013 00:00:00 GMT

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

Loading hourly forecast…
Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
Loading detailed forecast…
Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

Loading 15-day outlook…
Regional inflow

Nearby streamflow gauges

USGS streamgauges around Goose Cove Northwest Dike -- inflows here typically show up in storage 24-72 hours later.

Track Goose Cove Northwest Dike 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.

FAQ

About Goose Cove Northwest Dike

Where does the data for Goose Cove Northwest Dike 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 High 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.

More reservoirs

Other water bodies near here

Snoflo-tracked reservoirs and dams within driving distance of Goose Cove Northwest Dike.