Dam Report

Kotzebue Water Supply Dam dam

Alaska, USA Hazard Significant
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Dam height
16ft
Hazard rating
Significant
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Kotzebue Water Supply Dam -- None dam
Kotzebue Water Supply Dam None
About this dam

Kotzebue Water Supply Dam

The Kotzebue Water Supply Dam, also known as Vortac Lake Dam, is a vital structure managed by the local government in Kotzebue, Alaska. Designed by DAMES & MOORE, this earthen dam stands at a height of 16 feet and serves primarily for water supply purposes. Completed in 1970, it has a storage capacity of 412 acre-feet and a normal storage level of 370 acre-feet, ensuring a reliable water source for the community.

Located in the Northwest Arctic County of Alaska, the Kotzebue Water Supply Dam is regulated by the Alaska Department of Natural Resources and undergoes regular inspections to ensure its safety and functionality. Despite being classified as having a significant hazard potential and an unsatisfactory condition assessment, the dam plays a crucial role in providing essential water resources to the region. It is important for water resource and climate enthusiasts to monitor the maintenance and management of this dam to safeguard the water supply for the residents of Kotzebue.

With its strategic location and importance for water supply, the Kotzebue Water Supply Dam stands as a critical infrastructure within the region. As climate change continues to impact water resources, the proper regulation and maintenance of this dam become increasingly significant. By staying informed about its condition, inspection dates, and emergency preparedness measures, enthusiasts can contribute to the preservation and sustainability of this essential water supply infrastructure in Kotzebue, Alaska.

StateNone
NID IDAK00064
Owner typeLocal Government
Primary purposeWater Supply
Dam typeEarth
Year built1970
Dam height16 ft
Dam length970 ft
Max storage412 AF
Normal storage370 AF
Hazard potentialSignificant
ConditionUnsatisfactory
Last inspectionWed, 06 Nov 2019 00:00:00 GMT

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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Around the water

Make a day of it

Boat launches, lakeside camping, fishing access, and other reservoirs near Kotzebue Water Supply Dam.

Track Kotzebue Water Supply 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 Kotzebue Water Supply Dam

Where does the data for Kotzebue Water Supply 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 Significant 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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Other water bodies near here

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Premium feature

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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