Dam Report

Fort Gibson Dam - Dike 3 dam

Oklahoma, USA Grand River Hazard High
Today high
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Tonight low
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Dam height
110ft
Hazard rating
High
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Fort Gibson Dam - Dike 3 -- None dam
Fort Gibson Dam - Dike 3 None · Grand River
About this dam

Fort Gibson Dam - Dike 3

Fort Gibson Dam - Dike 3, also known as Fort Gibson Lake, is a gravity-type dam located in Fort Gibson, Oklahoma. Built in 1949 by the US Army Corps of Engineers, this dam serves the primary purpose of flood risk reduction along the Grand River. With a height of 110 feet and a length of 2990 feet, it has a storage capacity of 1,284,400 acre-feet and a normal storage volume of 365,200 acre-feet. The dam has a spillway width of 1490 feet and a maximum discharge capacity of 986,000 cubic feet per second.

The dam is classified as high hazard potential with a very high risk assessment rating, indicating the potential for significant flooding events. The US Army Corps of Engineers manages the dam-related flood risks by monitoring its condition, prioritizing risk-reduction activities, and collaborating with local emergency managers to raise awareness and develop emergency response plans. The dam releases water to manage water levels and relieve pressure, but severe weather events can overwhelm the system. Regular maintenance and repairs are conducted to ensure the dam's structural integrity and functionality, with continual updates to the emergency action plan to enhance preparedness and response efforts.

Overall, Fort Gibson Dam - Dike 3 plays a crucial role in flood risk mitigation and water management in the region, highlighting the importance of proactive risk management and collaboration between agencies and communities to ensure the safety and resilience of water resources in the face of potential emergencies.

StateNone
River / streamGrand River
NID IDOK10314
Owner typeFederal
Primary purposeFlood Risk Reduction
Dam typeGravity
Year built1949
Dam height110 ft
Dam length2,990 ft
Max storage1,284,400 AF
Normal storage365,200 AF
Surface area19,900.0 ac
Drainage area12,494.0 sq mi
Hazard potentialHigh
ConditionNot Available
Last inspectionTue, 22 Oct 2019 00:00:00 GMT
EAP preparedYes

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.

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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
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Long-term outlook

15-day temperature & precipitation

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

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Fort Gibson Dam - Dike 3 -- inflows here typically show up in storage 24-72 hours later.

Track Fort Gibson Dam - Dike 3 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 Fort Gibson Dam - Dike 3

Where does the data for Fort Gibson Dam - Dike 3 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.