Dam Report

New Savannah Bluff Lock And Dam dam

Georgia, USA Savannah River Hazard Significant
Today high
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Tonight low
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Dam height
16ft
Hazard rating
Significant
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New Savannah Bluff Lock And Dam -- None dam
New Savannah Bluff Lock And Dam None · Savannah River
About this dam

New Savannah Bluff Lock And Dam

The New Savannah Bluff Lock and Dam, located in Augusta, Georgia, was completed in 1937 by the US Army Corps of Engineers. This concrete gravity dam serves primarily as a water supply source, with a storage capacity of 11,610 acre-feet and a normal storage level of 9,600 acre-feet. The dam, standing at 70 feet tall and spanning 360 feet in length, also supports recreational activities along the Savannah River.

Despite its age and deteriorating condition, a risk assessment conducted by the USACE in 2014 classified the dam's risk of failure as low due to its limited downstream impacts. However, the structure displays signs of aging, with significant cracking in the spillway piers and erosion around the lock wall base. USACE actively manages these risks through regular inspections, emergency preparedness measures, and ongoing training to ensure the safety and stability of the dam.

While the consequences of a potential failure are deemed relatively minimal, the USACE remains vigilant in monitoring and maintaining the New Savannah Bluff Lock and Dam to mitigate any risks. Through collaboration with local emergency managers, updated emergency action plans, and periodic training for project personnel, the USACE is committed to ensuring the continued safe operation of this critical water resource infrastructure.

StateNone
River / streamSavannah River
NID IDGA01703
Owner typeFederal
Primary purposeWater Supply
Dam typeConcrete
Year built1937
Dam height16 ft
Dam length360 ft
Max storage11,610 AF
Normal storage9,600 AF
Surface area1,000.0 ac
Drainage area7,508.0 sq mi
Hazard potentialSignificant
ConditionNot Available
Last inspectionThu, 10 Jan 2019 00:00:00 GMT
EAP preparedYes

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 New Savannah Bluff Lock And Dam -- inflows here typically show up in storage 24-72 hours later.

Track New Savannah Bluff Lock And Dam 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 New Savannah Bluff Lock And Dam

Where does the data for New Savannah Bluff 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 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.

Premium feature

Favorites and alerts are part of Snoflo Premium. Save reservoirs, set storage thresholds, and get push notifications when 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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