Dam Report

Allen Inactive Ash Basin Dam dam

North Carolina, USA Catawba River-Os Hazard High
Today high
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Tonight low
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Dam height
50ft
Hazard rating
High
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Allen Inactive Ash Basin Dam -- None dam
Allen Inactive Ash Basin Dam None · Catawba River-Os
About this dam

Allen Inactive Ash Basin Dam

The Allen Inactive Ash Basin Dam, located in Red River, North Carolina, was completed in 1957 and stands at a structural height of 50 feet with a hydraulic height of 36.8 feet. This earth-type dam spans 3,130 feet and has a storage capacity of 69 acre-feet. Situated on the Catawba River-Os, the dam serves a critical purpose in managing water resources in the region, with a drainage area of 233 square miles and a maximum discharge capacity of 1,061 cubic feet per second.

Despite its significant role in water management, the Allen Inactive Ash Basin Dam poses a high hazard potential due to its location and design. However, recent inspections have deemed its condition as satisfactory, ensuring its continued functionality. While the dam is not state-regulated, it undergoes regular inspections to ensure its safety and efficacy. The dam is owned by a public utility and is crucial for the surrounding community's water supply and flood control measures.

As a key infrastructure in the region, the Allen Inactive Ash Basin Dam plays a vital role in water resource management and climate resilience efforts. Its strategic location, high hazard potential, and satisfactory condition underscore the importance of ongoing maintenance and monitoring to ensure its continued functionality and safety for the surrounding community. With its significant storage capacity and discharge capabilities, the dam serves as a critical asset in safeguarding the region against floods and maintaining water supply stability.

StateNone
River / streamCatawba River-Os
NID IDNC01668
Owner typePublic Utility
Primary purposeOther
Dam typeEarth
Year built1957
Dam length3,130 ft
Max storage69 AF
Surface area20.0 ac
Drainage area233.0 sq mi
Hazard potentialHigh
ConditionSatisfactory
Last inspectionWed, 14 Oct 2020 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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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Allen Inactive Ash Basin Dam -- inflows here typically show up in storage 24-72 hours later.

Track Allen Inactive Ash Basin 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 Allen Inactive Ash Basin Dam

Where does the data for Allen Inactive Ash Basin 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.