Dam Report

Stephens Mill dam

Alabama, USA South Sandy Creek Hazard Significant
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Tonight low
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Dam height
15ft
Hazard rating
Significant
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Stephens Mill -- None dam
Stephens Mill None · South Sandy Creek
About this dam

Stephens Mill

Stephens Mill is a private recreational dam located in Chambers, Alabama, along the South Sandy Creek. Built in 1952, this gravity dam stands at a structural height of 15 feet with a hydraulic height of 13 feet. With a storage capacity of 240 acre-feet and a maximum discharge rate of 850 cubic feet per second, Stephens Mill provides ample opportunities for water recreation in the area.

Despite not being state-regulated or permitted, Stephens Mill is deemed to have a significant hazard potential, highlighting the importance of regular inspections and emergency preparedness measures. The dam's condition assessment is currently listed as "Not Rated," indicating a need for further evaluation to ensure the safety and integrity of the structure. With its location in a picturesque setting and its vital role in providing recreational opportunities, Stephens Mill serves as a key site for water resource and climate enthusiasts to explore and appreciate.

Overall, Stephens Mill presents a unique blend of historical significance and natural beauty, making it a must-visit destination for those interested in water resources and climate. With its gravity dam design and vast storage capacity, this private recreational site offers a glimpse into the intersection of human engineering and environmental stewardship. As efforts continue to assess and manage the potential risks associated with the dam, Stephens Mill remains a beacon of recreation and exploration in the heart of Chambers, Alabama.

StateNone
River / streamSouth Sandy Creek
NID IDAL00550
Owner typePrivate
Primary purposeRecreation
Dam typeGravity
Year built1952
Dam length140 ft
Max storage240 AF
Normal storage180 AF
Hazard potentialSignificant
ConditionNot Rated

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 Stephens Mill -- inflows here typically show up in storage 24-72 hours later.

Track Stephens Mill in the Snoflo app

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FAQ

About Stephens Mill

Where does the data for Stephens Mill 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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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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