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Bass Lake Water Level Today

Daily level, distance to full pool and history for Bass Lake, on the North Fork Willow Creek (San Joaquin River basin) in California.

Updated · Source: CDEC station CNV Provisional

Water level Provisional

3,361.55ft

msl · Daily reading for Nov 8, 2026

  • 15.21 ftbelow full pool (3,376.8 ft)
  • −0.05 ftin 24 h−0.36 ft in 7 days−1.56 ft in 30 days
3,3603,3653,3703,3753,3803,3853,3603,3653,3703,3753,3803,3853,3603,3653,3703,3753,3803,385
  • Full pool
  • 1 yr ago

Is Bass Lake full?

No. Bass Lake is 15.21 ft below full pool (3,376.8 ft). It is 1.32 ft higher than a year ago (3,360.23 ft on Nov 8, 2025).

Bass Lake level history

View data table
DateLevel (ft)
Nov 8, 20263,361.55
Nov 7, 20263,361.60
Nov 6, 20263,361.67
Nov 5, 20263,361.71
Nov 4, 20263,361.76
Nov 3, 20263,361.82
Nov 2, 20263,361.88
Nov 1, 20263,361.91
Oct 31, 20263,361.80
Oct 30, 20263,361.83
Oct 29, 20263,361.89
Oct 28, 20263,361.97
Oct 27, 20263,362.02
Oct 26, 20263,362.07
Oct 25, 20263,362.13
Oct 24, 20263,362.19
Oct 23, 20263,362.24
Oct 22, 20263,362.30
Oct 21, 20263,362.31
Oct 20, 20263,362.33
Oct 19, 20263,362.35
Oct 18, 20263,362.43
Oct 17, 20263,362.49
Oct 16, 20263,362.55
Oct 15, 20263,362.62
Oct 14, 20263,362.70
Oct 13, 20263,362.76
Oct 12, 20263,362.85
Oct 11, 20263,362.93
Oct 10, 20263,363.03
Oct 9, 20263,363.11
  • Bass Lake level
  • Full pool 3,376.8 ft
  • Above full pool
Source: CDEC · Daily readings since 2020

Bass Lake on Nov 8 in past years

Bass Lake water level on Nov 8 in past years
YearLevel (ft)vs todayvs full pool
2026today3,361.55—−15.21 ft
20253,360.23−1.32−16.53 ft
20243,360.07−1.48−16.69 ft
20223,355.69−5.86−21.07 ft
20213,358.73−2.82−18.03 ft
20203,363.74+2.19−13.02 ft

Today’s level is the highest for this date since 2020.

Lake facts

Full pool (conservation pool)
3,376.8 ft msl
Highest since 2020
3,375.30 ftJun 25, 2020
Lowest since 2020
3,350.67 ftDec 4, 2023
Data since
Jan 1, 2020
Dam
Crane Valley Damcompleted 1910
River
North Fork Willow Creek (San Joaquin River basin)
Owned by
Pacific Gas and Electric Company
Dam location
Madera County
Gauge location
37.2830, −119.5170

Dam, river and owner from the National Inventory of Dams (USACE). Records cover Jan 1, 2020 to today (daily averages).

Bass Lake map and depth

  • Dam
Shoreline © OpenStreetMap contributors · Open the full map
Average depth when full
about 40 ftcapacity ÷ surface area
Surface area
about 1,130 acresmeasured on the OpenStreetMap outline
Height of Crane Valley Dam
145 ftNational Inventory of Dams

The outline shows the mapped shoreline, not today’s water line: when the lake is low, the water stands back from it.

Weather on the lake

  1. Today69°FHighLow 45°FWNW 0–5 mphMostly Sunny
  2. Tonight45°FLowNNE 0–5 mphPartly Cloudy
  3. Tuesday68°FHighLow 47°FCalmSunny
  4. Wednesday72°FHighLow 46°FN 0–5 mphSunny
  5. Thursday68°FHighLow 43°FNE 0–5 mphSunny
  6. Friday62°FHighLow 43°FSW 0–5 mphMostly Sunny
  7. Saturday60°FHighLow 41°FCalmMostly Sunny

Forecast: National Weather Service for the dam area (37.28, −119.52). Wind speeds are forecasts, not measurements.

Nearby lakes

Quick answers

What is the full pool level of Bass Lake?
3,376.8 ft above mean sea level, the top of its conservation pool. Above it, water is released or flows over the spillway of Crane Valley Dam.
How much does Bass Lake need to be full?
Bass Lake needs 15.21 ft more water to reach full pool (3,376.8 ft), as of Nov 8, 2026.
How deep is Bass Lake?
Bass Lake is about 40 ft deep on average when full: 45,410 acre-ft of storage spread over about 1,130 acres of surface. As in most reservoirs, the deepest water is in the old river channel near Crane Valley Dam.
Is Bass Lake rising or falling?
It is falling: −0.36 ft in the last 7 days and −0.05 ft in 24 hours, to 3,361.55 ft on Nov 8, 2026 (California Data Exchange Center).
What is the highest level in our data?
Bass Lake reached 3,375.30 ft on Jun 25, 2020. The lowest was 3,350.67 ft on Dec 4, 2023 (CDEC data since 2020; older records are not in this data set).
How much has Bass Lake changed in the last year?
In the last 12 months it ranged from 3,353.24 ft (Dec 8, 2025) to 3,370.87 ft (Jun 16, 2026), a swing of 17.63 ft.
How often is this page updated?
This page is updated every day with the daily reading from California Data Exchange Center. The last reading is from Nov 8, 2026.

Where this data comes from

Daily reservoir elevation from the California Data Exchange Center of the California Department of Water Resources (station CNV, cdec.water.ca.gov). Recent readings are provisional and may be revised. Weather from the National Weather Service. Dam details from the National Inventory of Dams.

Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.