Quick Facts About Hop Brook Dam
Hop Brook Dam Map
Hop Brook Dam Information
Hop Brook Dam is a rockfill earth dam located in Naugatuck, New Haven, Connecticut.
The dam, which is on the Hop Brook River, was primarily built for Flood Risk Reduction purposes, but also serves for Recreation benefits.
The dam was designed by and commissioned in 1968 and is currently owned by USACE – New England District.
Hop Brook Dam Structure
The Hop Brook Dam is approximately 520 feet (158 m) long, 89 feet (27 m) high and has a structural volume of 286,100 cubic yards (218,739 cubic metres).
Hop Brook Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 120 acre-ft (148 Ml) and maximum capacity of 23,000 acre-ft (28,370 Ml).
The surface area of the reservoir is 21 acres (8 ha) and the total catchment area is 16 square miles (41 square kilometres).
Hop Brook Dam Spillway
The dam has a 200 feet (61 m) wide uncontrolled spillway with a maximum discharge capacity of 23000 cubic feet per second (651 cubic metres per second).
Hop Brook Dam Compared to Four Famous American Dams
| Hop Brook Dam New Haven, Connecticut |
Hoover Dam Clark County, Nevada |
Grand Coulee Dam Okanogan County, Washington |
Theodore Roosevelt Dam Maricopa County, Arizona |
Glen Canyon Dam Coconino County, Arizona |
|
|---|---|---|---|---|---|
| Height (ft) | 89 | 730 | 550 | 357 | 216 |
| Length (Ft) | 520 | 1,244 | 5,673 | 6,920 | 1,565 |
| Storage Volume (acre-ft) | 23,000 | 30,237,000 | 9,562,000 | 3,540,000 | 29,875,000 |
| Drainage Area (sq miles) | 16 | 167,800 | 74,100 | 3,611 | 108,355 |
Hop Brook Dam Weather
Current Conditions at Hop Brook Dam
| Parameter | Value |
|---|---|
| Current Time | 21:14 |
| Sunrise | 06:27 |
| Sunset | 19:11 |
| Temperature (°F) | 69 |
| Feels Like (°F) | 70 |
| Cloud Coverage (%) | 0 |
| Pressure (inHg) | 1011 |
| Humidity (%) | 82 |
| Wind Speed (mph) | 5 |
| Rain (mm) | 0 |
7-Day Forecast for Hop Brook Dam
| Day | Min Temp (°F) | Max Temp (°F) | Feels Like (°F) | Pressure (inHg) | Humidity (%) | Wind Speed (mph) | Wind Gust (mph) | Wind Dir | Precip Prob (%) | Precip Volume (mm) | Weather |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Today | 69 | 83 | 84 | 1010 | 66 | 12 | 35 | SSW | 100 | 1 |  |
| Fri | 60 | 76 | 68 | 1016 | 38 | 9 | 15 | NW | 0 | - |  |
| Sat | 57 | 75 | 70 | 1020 | 42 | 8 | 12 | SSE | 98 | 1 | |
| Sun | 63 | 81 | 72 | 1015 | 97 | 7 | 21 | SSE | 100 | 11 | |
| Mon | 54 | 74 | 69 | 1019 | 39 | 11 | 26 | NNW | 0 | - |  |
| Tue | 48 | 72 | 65 | 1029 | 48 | 8 | 13 | S | 0 | - |  |
| Wed | 59 | 81 | 75 | 1025 | 61 | 9 | 22 | SW | 0 | - | |
| Thu | 61 | 66 | 67 | 1023 | 98 | 11 | 25 | NNE | 100 | 22 | |
Hop Brook Dam Frequently Asked Questions
Hop Brook Dam is in Connecticut.
Hop Brook Dam is in New Haven County.
Hop Brook Dam is 89 feet high.
Hop Brook Dam is 520 feet long.
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Hancock Brook Dam
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Highland Lake Dam
Hop Brook Dam
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Lake Saltonstall Dam
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Condition Assessment Classification
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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.
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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Source: National Inventory of Dams