Dam Report

Elk City Dam dam

Kansas, USA Elk River Hazard High
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Tonight low
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Dam height
107ft
Hazard rating
High
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Elk City Dam -- None dam
Elk City Dam None · Elk River
About this dam

Elk City Dam

Elk City Dam, also known as Elk City Lake, is a federal-owned structure located in Montgomery, Kansas. Completed in 1966, this earth dam stands at a height of 107 feet and has a storage capacity of 850,405 acre-feet. Its primary purpose is flood risk reduction, with additional functions including recreation and water supply. The dam spans 4,840 feet in length and has a spillway width of 400 feet, designed to handle a maximum discharge of 120,800 cubic feet per second.

Despite being classified as a high hazard potential dam, the risk of failure at Elk City Dam is considered low due to its low probability of failure and low population at risk downstream. The primary risk lies in erosion along the conduit passing through the dam, which could lead to slow-to-develop failure during rare high pool events. To manage and reduce risks, the US Army Corps of Engineers (USACE) has implemented various measures including routine inspections, emergency exercises, and maintenance activities. Additionally, the dam is equipped with instrumentation and monitoring systems to track changing conditions and ensure structural integrity.

In the event of a large flood, advanced warning systems would be in place to mitigate potential impacts on nearby communities such as Independence and Coffeyville. Despite the risks associated with normal dam operations, USACE's proactive risk management approach aims to safeguard lives and minimize economic losses. Overall, Elk City Dam serves as a critical infrastructure for flood protection and water resource management, supported by continuous efforts to enhance its safety and resilience.

StateNone
River / streamElk River
NID IDKS00002
Owner typeFederal
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built1966
Dam height107 ft
Dam length4,840 ft
Max storage850,405 AF
Normal storage46,122 AF
Surface area4,440.0 ac
Drainage area634.0 sq mi
Hazard potentialHigh
ConditionNot Available
Last inspectionTue, 16 Jun 2020 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 Elk City Dam -- inflows here typically show up in storage 24-72 hours later.

Track Elk City Dam 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 Elk City Dam

Where does the data for Elk City Dam 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.

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Snoflo-tracked reservoirs and dams within driving distance of Elk City Dam.