Tracker · updated from DWR/CDEC with each build
Lake Isabella Water Level & Elevation
Lake Isabella is at 2,555.87 ft elevation — 25.4% of capacity. Live water level, elevation, Kern River inflow, fishing species, and boat ramp status, updated from California DWR/CDEC.
Current water level
Lake Isabella is at 2,555.87 feet elevation, holding 144,162 acre-feet — 25.4% of its 568,000-acre-foot full capacity (full pool 2,605.5 ft). That is the live reading from California DWR / CDEC, updated with each build. Storage is down 4,124 acre-feet over the last 7 days (Oct 3 to Oct 10 readings).
The lake is at 2,555.87 ft, which is 49.6 ft below the full-pool elevation of 2,605.5 ft. At this level, water is well down. Ramp access can be limited to the main improved launches, and unmarked hazards near the old shore are more likely. Check current ramp status before launching.
Lake Isabella, on the Kern River above Bakersfield, is the valley's biggest reservoir. The U.S. Army Corps of Engineers reports storage, elevation and inflow to the California Data Exchange Center (CDEC) daily.
Lake Isabella storage, acre-feet — last 30 days
| Date | Storage (acre-feet) |
|---|---|
| Oct 10 | 144,162 AF |
| Oct 9 | 144,485 AF |
| Oct 8 | 145,078 AF |
| Oct 7 | 145,727 AF |
| Oct 6 | 146,540 AF |
| Oct 5 | 147,139 AF |
| Oct 4 | 147,739 AF |
| Oct 3 | 148,286 AF |
| Oct 2 | 148,780 AF |
| Oct 1 | 149,384 AF |
| Sep 30 | 150,046 AF |
| Sep 29 | 150,488 AF |
| Sep 28 | 150,931 AF |
| Sep 27 | 151,374 AF |
What these terms mean
- Acre-foot
- Enough water to cover one acre a foot deep: about 326,000 gallons, roughly a football field filled one foot deep.
- Full pool
- The lake’s level when it is completely full, 2,605.5 feet above sea level.
- cfs (cubic feet per second)
- How fast the Kern River is flowing into the lake. One cfs for a full day is about two acre-feet.
Fishing Lake Isabella
Lake Isabella holds trout, largemouth bass, bluegill, crappie and catfish. It is one of Kern County's most-visited fishing lakes, with bank access around the main recreation areas and boat access from the improved ramps.
Seasonal patterns (general guidance, not a live bite report):
- Trout — best in spring and fall when the water is cool; the lake is regularly planted and trout hold near cooler inlets (Kern River, French Gulch) in summer.
- Largemouth bass — active spring through fall; target structure, points and weedlines. Spawn is typically spring.
- Crappie & bluegill — strongest spring to early summer around brush and docks.
- Catfish — best on warm summer evenings and nights.
- How the water level matters: rising water floods new structure that fish move onto; a fast drop pulls fish out of newly exposed shallows; very low water concentrates fish but can make ramps harder to use and expose hazards.
Fishing quality depends on weather, water temperature and recent plantings — this is general seasonal guidance, not a live bite report. Always check the current California Department of Fish & Wildlife regulations and any fish-consumption advisory before keeping fish.
Is the lake open? Boat ramp status
At 2,555.87 ft elevation (25.4% of capacity), the lake is well below full pool. Water is well down. Ramp access can be limited to the main improved launches, and unmarked hazards near the old shore are more likely. Check current ramp status before launching.
Boat access is controlled by the U.S. Army Corps of Engineers and Kern County Parks — ramps and the marina can close for debris, construction or maintenance regardless of water level (Lake Isabella ramps closed for two weeks in March 2026 for flood- debris removal, then reopened). There is no reliable real-time open/closed feed we can automate, so for the current ramp and marina status check the official sources:
- Kern County Parks — Lake Isabella boating & permits
- U.S. Army Corps of Engineers — Isabella Dam hourly report
Boating on Lake Isabella requires a Kern County boat permit (annual, available each November). All boats need a U.S. Coast Guard-approved life jacket per person; operators 16+ need a California Boater Card. Watch for 60 mph gusts and always slow to no-wake within 200 ft of shore.
Water-level hazards
As the level changes, watch for: submerged fencing near the South Fork, tree snags, rock outcroppings and sand spits that appear and disappear with the water, and the 8-ft-deep Borel Canal that cuts across the western lake. When the lake is low, these are closer to the surface and to where you'd normally launch. Report an emergency to 911; the Kern Valley Hospital line is (760) 379-2681.
Lake Isabella questions
Q: What is the current water level of Lake Isabella?
Lake Isabella is at 2,555.87 ft elevation, holding 144,162 acre-feet (25.4% of its 568,000 acre-foot capacity). This live reading updates automatically from California DWR/CDEC.
Q: How full is Lake Isabella right now?
Lake Isabella is 25.4% full, holding 144,162 acre-feet of its 568,000 acre-foot capacity at an elevation of 2,555.87 ft (full pool 2,605.5 ft), from the latest California DWR/CDEC reading.
Q: How far below full pool is Lake Isabella?
Lake Isabella is 49.6 ft below the full-pool elevation of 2,605.5 ft (elevation 2,555.87 ft, 25.4% of capacity).
Q: Is Lake Isabella full or going up?
Lake Isabella is at 25.4% of capacity. Storage is down 4,124 acre-feet over the last 7 days (Oct 3 to Oct 10 readings) (the 7-day change from the CDEC storage series).
Q: What is the elevation of Lake Isabella?
The lake elevation is 2,555.87 ft (full pool is 2605.5 ft). Elevation is updated from CDEC with each build.
Q: How deep is Lake Isabella?
It depends on the water level. When full, Lake Isabella holds 568,000 acre-feet across about 11,000 acres, an average depth of about 52 feet; the deepest water is in the old Kern River channel near the main dam. Right now the surface is 49.6 ft below the full-pool elevation of 2,605.5 ft, so every part of the lake is that much shallower than when full. The Army Corps of Engineers reports the lake's elevation and storage, not a maximum depth.
Q: How much water is flowing into Lake Isabella?
Kern River inflow into Lake Isabella is 314 cubic feet per second as of the latest reading.
Q: What kind of fish are in Lake Isabella?
Lake Isabella holds trout, largemouth bass, bluegill, crappie and catfish. Fishing is popular year-round; trout are best in cooler months, bass and panfish in spring to fall, and catfish on warm summer nights.
Q: Is Lake Isabella open for boating?
At its current level the lake is generally open for boating from the improved ramps, but ramp and marina status can change for debris, construction or maintenance. Check Kern County Parks and the U.S. Army Corps of Engineers for current status. A Kern County boat permit is required.