Dam Report

Aberdeen Lock And Dam

Mississippi, USA Tombigbee Hazard Significant
Today high
--
Tonight low
--
Dam height
66ft
Hazard rating
Significant
Loading current conditions…
Next 24 hours
Loading next 24 hours…
Aberdeen Lock And Dam -- Mississippi dam
Aberdeen Lock And Dam Mississippi · Tombigbee
About this dam

Aberdeen Lock And Dam

Aberdeen Lock and Dam, also known as Aberdeen Lake, is a federal-owned structure located in Monroe County, Mississippi. Completed in 1984 by the US Army Corps of Engineers, this gravity-type dam serves the primary purpose of navigation on the Tombigbee River. With a structural height of 66 feet and a hydraulic height of 51 feet, the dam spans 500 feet in length and has a storage capacity of 31,564 acre-feet.

Despite being categorized with a significant hazard potential, the dam is actively managed by the US Army Corps of Engineers to mitigate flood risks and ensure its structural integrity. Regular inspections, maintenance, and emergency action plans are in place to address potential hazards and protect downstream communities. The dam's controlled spillway and single lock support its navigation and recreational purposes, while its risk management measures prioritize public safety and disaster preparedness. As a key component of the water resource infrastructure, Aberdeen Lock and Dam plays a crucial role in managing water levels and mitigating flood risks along the Tombigbee River.

StateMississippi
River / streamTombigbee
NID IDMS03057
Owner typeFederal
Primary purposeNavigation
Dam typeGravity
Year built1984
Dam length500 ft
Max storage31,564 AF
Normal storage31,564 AF
Surface area4,121.0 ac
Drainage area2,047.0 sq mi
Hazard potentialSignificant
ConditionNot Available
Last inspectionMon, 04 May 2020 05:00:00 GMT
EAP preparedYes
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.

Loading hourly forecast…
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
Loading detailed forecast…
Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

Loading 15-day outlook…
Regional inflow

Nearby streamflow gauges

USGS streamgauges around Aberdeen Lock And Dam -- inflows here typically show up in storage 24-72 hours later.

Around the water

Make a day of it

Boat launches, lakeside camping, fishing access, and other reservoirs near Aberdeen Lock And Dam.

FAQ

About Aberdeen Lock And Dam

Where does the data for Aberdeen Lock And 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 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 below 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.

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.