Dam Report

Hallmark Lake dam

Alabama, USA Tr-Locust Fork Hazard Low
Today high
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Tonight low
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Dam height
40ft
Hazard rating
Low
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Hallmark Lake -- None dam
Hallmark Lake None · Tr-Locust Fork
About this dam

Hallmark Lake

Hallmark Lake, located in Jefferson County, Alabama, is a privately owned reservoir primarily used for recreational purposes. Constructed in 1976, this Earth dam stands at 40 feet high with a hydraulic height of 34 feet, creating a storage capacity of 313 acre-feet. The lake spans 745 feet in length and is situated along the TR-LOCUST FORK river/stream, making it a picturesque destination for water resource and climate enthusiasts.

Despite its low hazard potential and not being state regulated, Hallmark Lake offers a tranquil escape for visitors seeking outdoor activities such as fishing, boating, and wildlife observation. The reservoir is surrounded by the natural beauty of Sayre city, providing a peaceful setting for relaxation and exploration. With its convenient location just 16 miles away from the urban center, Hallmark Lake serves as a hidden gem for those looking to connect with nature and appreciate the importance of water resources in a changing climate.

As a non-federally owned structure under the jurisdiction of the state of Alabama, Hallmark Lake remains a well-maintained recreational spot with its condition yet to be formally assessed. With its serene atmosphere and potential for further development, this private reservoir presents an opportunity for sustainable water management practices and serves as a reminder of the vital role that local water resources play in our environment.

StateNone
River / streamTr-Locust Fork
NID IDAL01572
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1976
Dam length745 ft
Max storage313 AF
Normal storage273 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 Hallmark Lake -- inflows here typically show up in storage 24-72 hours later.

Track Hallmark Lake 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 Hallmark Lake

Where does the data for Hallmark Lake 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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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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