Quick Facts About Nashua Milldam
Nashua Milldam Map
Nashua Milldam Information
Nashua Milldam is a gravity dam located in Nashua, Chickasaw, Iowa.
The dam, which is on the Cedar River, was primarily built for Recreation purposes, but also serves for benefits.
The dam was designed by WARZYN ENGINEERING and commissioned in 1917 and is currently owned by City of Nashua.
Nashua Milldam Structure
The Nashua Milldam is approximately 1,170 feet (357 m) long, 20 feet (6 m) high and has a structural volume of 0 cubic yards (0 cubic metres).
Nashua Milldam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 3,245 acre-ft (4,003 Ml) and maximum capacity of 5,242 acre-ft (6,466 Ml).
The surface area of the reservoir is 405 acres (164 ha) and the total catchment area is 1,113 square miles (2,883 square kilometres).
Nashua Milldam Spillway
The dam has a 260 feet (79 m) wide controlled spillway with a maximum discharge capacity of 0 cubic feet per second (0 cubic metres per second).
Nashua Milldam Compared to Four Famous American Dams
| Nashua Milldam Chickasaw, Iowa |
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) | 20 | 730 | 550 | 357 | 216 |
| Length (Ft) | 1,170 | 1,244 | 5,673 | 6,920 | 1,565 |
| Storage Volume (acre-ft) | 5,242 | 30,237,000 | 9,562,000 | 3,540,000 | 29,875,000 |
| Drainage Area (sq miles) | 1,113 | 167,800 | 74,100 | 3,611 | 108,355 |
Nashua Milldam Weather
Current Conditions at Nashua Milldam
Failed to fetch current weather data.7-Day Forecast for Nashua Milldam
Failed to fetch weather forecast data.Nashua Milldam Frequently Asked Questions
Nashua Milldam is in Iowa.
Nashua Milldam is in Chickasaw County.
Nashua Milldam is 20 feet high.
Nashua Milldam is 1,170 feet long.
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Nashua Milldam
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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