Lake Tugalo lake and shoreline

About Lake Tugalo

Officially Lake Tugalo (Tallulah River)

GeorgiaSouth Carolina

Lake Tugalo is managed by Georgia Power. Lake Insights displays its latest available elevation from NOAA National Water Prediction Service. Published reference elevations are listed below.

Lake Status

1.73 feet below full pool

−1.73 ft vs full pool

7-day trend
Rising
7-day change
Up 0.09 ft
30-day change
Down 0.03 ft
Last updated
6 hours ago

Lake Tugalo is currently 1.73 feet below full pool and has risen slightly over the past week. Recent conditions indicate improving reservoir levels, although the lake remains below its normal operating elevation.

Key Facts

Managing authority

Waterbody / project type

Reservoir

Official purposes

Hydroelectric · Fish and Wildlife Pond · RecreationSource: National Inventory of Dams

Full pool

892.00 ft

Current-level source

NOAA National Water Prediction Service

Project / NID identifier

Tugalo · GA00844

Dam / watershed (NID design values)

Static design values from a confidently matched National Inventory of Dams record — not live gage readings.

Normal storage
43,000 acre-ft
Surface area at normal pool
597 acres
Drainage area
464 sq mi
Spillway capacity (design)
97,000 cfs
Dam structure
Gravity · 155 ft high · completed 1923
Hazard classification
High
Safety & inspection
Satisfactory · last inspection Apr 22, 2026

National Inventory of Dams · matched record: Tugalo (GA00844)

How this lake is operated

  • Documented project purposes (National Inventory of Dams): Hydroelectric, Fish and Wildlife Pond, Recreation.

Why the level can change

General factors for reservoirs like this

These are common influences for this type of lake. They do not identify the cause of a specific current change unless an operator update confirms it.

  • Rainfall & inflows

    Rain and upstream river inflows can raise reservoir levels, especially after storms.

  • Downstream releases

    When an operator releases water through a dam, reservoir storage can fall and downstream flows can rise.

  • Flood-risk operations

    Some projects store or release water under flood-risk rules when conditions require it.

  • Water supply

    Some reservoirs support municipal, industrial, irrigation, or regional water-supply needs.

  • Hydropower

    Hydropower projects may pass water through turbines when generating electricity.

  • Seasonal weather

    Dry periods, heat, evaporation, and seasonal rainfall patterns can affect storage over weeks and months.

Published reference elevations

Full pool
892.00 ft

Published reference elevation. Not necessarily a fixed year-round target for every project.

Current data source

Managing authority: Georgia Power

Observation source used by Lake Insights: NOAA National Water Prediction Service

Who manages the lake and who publishes the reading Lake Insights displays can differ. Lake Insights does not invent a source label from the managing authority alone.

General education

Shared background — not lake-specific facts

Lake Insights aggregates water level information from authoritative public sources such as the U.S. Army Corps of Engineers, NOAA, TVA, Bureau of Reclamation, power utilities, and other official lake operators. We preserve historical observations, calculate trends, and present lake conditions in a consistent format. For NOAA National Water Prediction Service, we link to the official source whenever it is available. Lake Insights does not predict future lake levels unless an official forecast has been published by the managing authority.

How we source lake data · Glossary

Common questions about Lake Tugalo

Who manages Lake Tugalo?
Lake Tugalo is managed by Georgia Power. Lake Insights reports published gauge readings; it does not operate the waterbody.
What is full pool at Lake Tugalo?
The published full-pool elevation for Lake Tugalo is 892.00 ft. Full pool is a published reference elevation — not a prediction of today’s level.
Where does Lake Insights get the level reading for Lake Tugalo?
Lake Insights displays the latest available elevation for Lake Tugalo from NOAA National Water Prediction Service. The managing authority (Georgia Power) may differ from the agency that publishes the observation used on this page.
What are the documented purposes of Lake Tugalo?
Documented purposes for Lake Tugalo (National Inventory of Dams): Hydroelectric, Fish and Wildlife Pond, Recreation.

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