Quick Facts About Upper Turtle River Flood Ret. 9 Dam
Upper Turtle River Flood Ret. 9 Dam Map
Upper Turtle River Flood Ret. 9 Dam Information
Upper Turtle River Flood Ret. 9 Dam is an earthen embankment dam located about 1 miles from Arvilla, Grand Forks, North Dakota.
The dam, which is on the South Branch Turtle River, was primarily built for Flood Risk Reduction purposes, but also serves for Recreation benefits.
The dam was designed by USDA NRCS and commissioned in 1979 and is currently owned by Grand Forks County WRB.
Upper Turtle River Flood Ret. 9 Dam Structure
The Upper Turtle River Flood Ret. 9 Dam is approximately 1,040 feet (317 m) long, 68 feet (21 m) high and has a structural volume of 489,677 cubic yards (374,385 cubic metres).
Upper Turtle River Flood Ret. 9 Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 823 acre-ft (1,015 Ml) and maximum capacity of 10,410 acre-ft (12,841 Ml).
The surface area of the reservoir is 72 acres (29 ha) and the total catchment area is 65 square miles (168 square kilometres).
Upper Turtle River Flood Ret. 9 Dam Spillway
The dam has a 300 feet (91 m) wide uncontrolled spillway with a maximum discharge capacity of cubic feet per second (0 cubic metres per second).
Upper Turtle River Flood Ret. 9 Dam Compared to Four Famous American Dams
| Upper Turtle River Flood Ret. 9 Dam Grand Forks, North Dakota |
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) | 68 | 730 | 550 | 357 | 216 |
| Length (Ft) | 1,040 | 1,244 | 5,673 | 6,920 | 1,565 |
| Storage Volume (acre-ft) | 10,410 | 30,237,000 | 9,562,000 | 3,540,000 | 29,875,000 |
| Drainage Area (sq miles) | 65 | 167,800 | 74,100 | 3,611 | 108,355 |
Upper Turtle River Flood Ret. 9 Dam Weather
Current Conditions at Upper Turtle River Flood Ret. 9 Dam
Failed to fetch current weather data.7-Day Forecast for Upper Turtle River Flood Ret. 9 Dam
Failed to fetch weather forecast data.Upper Turtle River Flood Ret. 9 Dam Frequently Asked Questions
Upper Turtle River Flood Ret. 9 Dam is in North Dakota.
Upper Turtle River Flood Ret. 9 Dam is in Grand Forks County.
Upper Turtle River Flood Ret. 9 Dam is 68 feet high.
Upper Turtle River Flood Ret. 9 Dam is 1,040 feet long.
More Dams in Grand Forks County:
English Coulee DamFordville Dam
Grand Forks Riverside Park Dam
Upper Turtle River Flood Ret. 9 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