Dam Report

Allens dam

Alabama, USA Tr Pigeon Roost Creek Hazard Low
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Tonight low
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Dam height
15ft
Hazard rating
Low
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Allens -- None dam
Allens None · Tr Pigeon Roost Creek
About this dam

Allens

Allens, located in Chambers, Alabama, is a privately owned recreational dam on TR Pigeon Roost Creek. Constructed in 1970, this earth dam stands at 15 feet tall with a hydraulic height of 12 feet and a length of 250 feet. It has a normal storage capacity of 40 acre-feet and a maximum discharge of 120 cubic feet per second. Despite its low hazard potential, Allens has not been rated for its current condition, and its emergency action plan status is unknown.

Situated in Congressional District 03, Alabama, Allens serves as a popular spot for outdoor activities in Trammel Crossroads. While this dam does not fall under federal jurisdiction, it provides essential recreational opportunities for the local community. With a maximum storage capacity of 70 acre-feet, Allens contributes to the conservation of water resources and the preservation of natural habitats in the region. Although its inspection frequency is not specified, the dam's risk management measures and emergency preparedness remain uncertain.

Water resource and climate enthusiasts interested in Allens can appreciate its role in providing recreational benefits while also considering its potential impact on the surrounding environment. As a privately owned structure, this dam offers a glimpse into the intersection of human-made infrastructure and natural ecosystems. With a focus on recreation, Allens showcases the importance of sustainable water management practices and the need for ongoing monitoring and maintenance to ensure its continued safety and functionality.

StateNone
River / streamTr Pigeon Roost Creek
NID IDAL00553
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1970
Dam length250 ft
Max storage70 AF
Normal storage40 AF
Hazard potentialLow
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 Allens -- inflows here typically show up in storage 24-72 hours later.

Track Allens in the Snoflo app

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FAQ

About Allens

Where does the data for Allens 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 Low 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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