New Melones Lake is managed by U.S. Bureau of Reclamation. Lake Insights displays its latest available elevation from California Data Exchange Center. Published reference elevations are listed below.
Lake Status
80.5 feet below full pool
−80.50 ft vs full pool
- 7-day trend
- Falling
- 7-day change
- Down 0.70 ft
- 30-day change
- Down 3.20 ft
- Last updated
- Today
New Melones Lake is currently 80.5 feet below full pool and has fallen slightly over the past week. Readings show continued drawdown relative to full pool, with levels trending lower over the past week.
Watershed drought conditions
Calaveras County, CA · surrounding county from lake location
Abnormally Dry
The surrounding county is abnormally dry, which is not official drought.
Severity
Weekly trend
Stable
Compared with last week
Official drought
No
Current conditions are classified as Abnormally Dry (D0), which is not considered official drought.
U.S. Drought Monitor · map date Sep 15, 2026. Updated weekly. droughtmonitor.unl.eduView drought map for Calaveras County, CA
Key Facts
Managing authority
Waterbody / project type
Official purposes
Full pool
Current-level source
Project / NID identifier
Dam / watershed (NID design values)
Static design values from a confidently matched National Inventory of Dams record — not live gage readings.
- Normal storage
- 996,000 acre-ft
- Max storage
- 1.01M acre-ft
- Surface area at normal pool
- 4,830 acres
- Drainage area
- 485 sq mi
- Spillway capacity (design)
- 160,000 cfs
- Dam structure
- Concrete · 645 ft high · completed 1970
- Hazard classification
- High
- Safety & inspection
- Fair · last inspection Jun 15, 2026
National Inventory of Dams · matched record: New Bullards Bar Dam (CA00863)
How this lake is operated
- Documented project purposes (National Inventory of Dams): Hydroelectric, Fish and Wildlife Pond, Flood Risk Reduction, Irrigation, Recreation, Water Supply.
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
- 1088.00 ft
Published reference elevation. Not necessarily a fixed year-round target for every project.
Current data source
Managing authority: U.S. Bureau of Reclamation
Observation source used by Lake Insights: California Data Exchange Center
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 California Data Exchange Center, 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.
Common questions about New Melones Lake
- Who manages New Melones Lake?
- New Melones Lake is managed by U.S. Bureau of Reclamation. Lake Insights reports published gauge readings; it does not operate the waterbody.
- What is full pool at New Melones Lake?
- The published full-pool elevation for New Melones Lake is 1088.00 ft. Full pool is a published reference elevation — not a prediction of today’s level.
- Where does Lake Insights get the level reading for New Melones Lake?
- Lake Insights displays the latest available elevation for New Melones Lake from California Data Exchange Center. The managing authority (U.S. Bureau of Reclamation) may differ from the agency that publishes the observation used on this page.
- What are the documented purposes of New Melones Lake?
- Documented purposes for New Melones Lake (National Inventory of Dams): Hydroelectric, Fish and Wildlife Pond, Flood Risk Reduction, Irrigation, Recreation, Water Supply.