Allegan Dam Quick Facts
Allegan Dam Map
Allegan Dam Information
Allegan Dam is a gravity earth dam located about 11 miles from New Richmond, Allegan, Michigan.
The dam, which is on the Kalamazoo River, was primarily built for Hydroelectric purposes, but also serves for benefits.
The dam was designed by and commissioned in 1936 and is currently owned by Consumers Energy Company.
Allegan Dam Structure
The Allegan Dam is approximately 1,335 feet (407 m) long, 30 feet (9 m) high and has a structural volume of 146,300 cubic yards (111,854 cubic metres).
Allegan Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 17,200 acre-ft (21,216 Ml) and maximum capacity of 20,640 acre-ft (25,459 Ml).
The surface area of the reservoir is 1,600 acres (647 ha) and the total catchment area is 1,550 square miles (4,014 square kilometres).
Allegan Dam Spillway
The dam spillway has a maximum discharge capacity of 19200 cubic feet per second (544 cubic metres per second).
Allegan Dam Compared to Five Famous American Dams
Allegan Dam Weather
Current Conditions at Allegan Dam
| Parameter | Value |
|---|---|
| Current Time | 20:07 |
| Sunrise | 08:07 |
| Sunset | 17:42 |
| Temperature (°F) | -2 |
| Feels Like (°F) | -15 |
| Cloud Coverage (%) | 100 |
| Pressure (inHg) | 1033 |
| Humidity (%) | 82 |
| Wind Speed (mph) | 6 |
| Rain (mm) | 0 |
7-Day Forecast for Allegan 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 | -2 | 8 | -7 | 1033 | 81 | 16 | 26 | W | 100 | - |  |
| Wed | -1 | 19 | -2 | 1026 | 91 | 16 | 32 | SSW | 29 | - | |
| Thu | 15 | 25 | 11 | 1021 | 89 | 14 | 24 | NW | 100 | - | |
| Fri | 8 | 23 | 12 | 1027 | 70 | 10 | 26 | SW | 0 | - |  |
| Sat | 17 | 31 | 20 | 1020 | 84 | 16 | 33 | SW | 0 | - | |
| Sun | 17 | 27 | 18 | 1027 | 73 | 9 | 22 | WSW | 0 | - | |
| Mon | 25 | 32 | 17 | 1013 | 77 | 19 | 36 | WSW | 0 | - |  |
| Tue | 12 | 30 | 13 | 1018 | 76 | 15 | 28 | W | 100 | - | |
Allegan Dam Frequently Asked Questions
Allegan Dam is in Michigan.
Allegan Dam is in Allegan County.
Allegan Dam is 30 feet high.
Allegan Dam is 1,335 feet long.
More Dams in Allegan County:
Allegan DamCaneadea Dam
Cuba Lake Dam
Cuba Lake Outlet Spillway Dam
Rocky Gap 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