Dam Report

J.L.Morrison Dam No.1 dam

Alabama, USA Tr-Big Prairie Creek Hazard Significant
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Dam height
27ft
Hazard rating
Significant
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J.L.Morrison Dam No.1 -- None dam
J.L.Morrison Dam No.1 None · Tr-Big Prairie Creek
About this dam

J.L.Morrison Dam No.1

J.L. Morrison Dam No.1, located in Hale, Alabama, is a privately owned earth dam completed in 1970 with a primary purpose of recreation. Situated at the intersection of Co.Rd.16 and 47, the dam is built on TR-BIG PRAIRIE CREEK and managed by the Mobile District of the US Army Corps of Engineers. With a hydraulic height of 24 feet and a structural height of 27 feet, the dam has a storage capacity of 336 acre-feet, providing essential water resources for the surrounding area.

Despite its recreational focus, J.L. Morrison Dam No.1 poses a significant hazard potential and has not been rated for its condition. Emergency action plans and risk management measures are not currently in place, highlighting the importance of monitoring and maintaining this vital water resource infrastructure. The dam's significant storage capacity and location within the Big Prairie Creek watershed make it a crucial asset for water resource and climate enthusiasts to keep an eye on for potential risks and management strategies in the future.

As a prominent feature in Alabama's water infrastructure, J.L. Morrison Dam No.1 serves as a reminder of the importance of proper maintenance and risk assessment for dams in the region. With its close proximity to a major waterway, the dam plays a crucial role in water storage and flood control, making it essential for enthusiasts and stakeholders to stay informed about its condition and potential risks. As climate change continues to impact water resources, the management of dams like J.L. Morrison Dam No.1 will be vital in ensuring the safety and sustainability of water supplies for future generations.

StateNone
River / streamTr-Big Prairie Creek
NID IDAL01570
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1970
Dam length1,000 ft
Max storage336 AF
Normal storage308 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 J.L.Morrison Dam No.1 -- inflows here typically show up in storage 24-72 hours later.

Track J.L.Morrison Dam No.1 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 J.L.Morrison Dam No.1

Where does the data for J.L.Morrison Dam No.1 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

Snoflo-tracked reservoirs and dams within driving distance of J.L.Morrison Dam No.1.

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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