Del Valle Reservoir Water Level Today
California · near Livermore · Below full pool
- Elevation
- 690.78 ft
- From full pool
- −12.34 ft
- Percent of pool
- 91.4%
- 24-hour change
- −0.21 ft
- 7-day change
- −1.50 ft
- Reading
- Sep 20, 2026 · USACE
Last year at Del Valle Reservoir
Del Valle Reservoir is 12.34 ft below full pool, at 690.78 ft, down 0.21 ft in the last 24 hours. That puts the lake at 91.4 percent of its conservation pool. The top of the flood pool is 57.8 ft higher, at 748.60 ft.
Over the last 7 days the level fell 1.50 ft, and over 30 days it fell 6.34 ft. In the 390 days of readings on this page the high was 703.71 ft on May 2, 2026 and the low was 649.98 ft on Sep 1, 2026, a range of 53.73 ft.
The reading is the U.S. Army Corps of Engineers gauge at Del Valle Dam & Reservoir, near Livermore, taken Sep 20, 2026 and referenced to the NGVD29 datum. This page is rebuilt once a day from the agency feed; it is not a live gauge, so during a fast rise or a scheduled release check the USACE page for hourly values.
Del Valle Reservoir pool elevations
| Current elevation | 690.78 ft |
|---|---|
| Full pool (top of conservation) | 703.12 ft |
| Top of flood pool | 748.60 ft |
| Bottom of conservation pool | 560.00 ft |
| Top of dam | 773.00 ft |
| Inflow | -5 cfs |
| Outflow | 60 cfs |
| 30-day change | −6.34 ft |
| 1-year high | 703.71 ft (May 2, 2026) |
| 1-year low | 649.98 ft (Sep 1, 2026) |
| Vertical datum | NGVD29 |
| Operating agency | U.S. Army Corps of Engineers, SPN district |
Source: U.S. Army Corps of Engineers. Read what full pool and flood pool mean.
More lakes in California
- Lake Oroville 767.67 ft, −128.29 ft from full
- Shasta Lake 984.99 ft, −81.78 ft from full
- Folsom Lake 408.15 ft, −57.85 ft from full
- Lake Isabella 2,557.94 ft, −26.04 ft from full
- New Melones Lake 1,007.63 ft, −75.95 ft from full
- Pine Flat Lake 742.21 ft, −209.11 ft from full
Del Valle Reservoir level questions
What is the water level of Del Valle Reservoir today?
Del Valle Reservoir is at 690.78 ft as of Sep 20, 2026, −12.34 ft relative to full pool (703.12 ft). The 24-hour change is −0.21 ft.
What is full pool at Del Valle Reservoir?
Full pool, the top of the conservation pool, is 703.12 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 748.60 ft. The bottom of the conservation pool is 560.00 ft.
Is Del Valle Reservoir rising or falling?
Over the last 24 hours the level is −0.21 ft; over 7 days it fell 1.50 ft, and over 30 days it fell 6.34 ft.
Where does this Del Valle Reservoir level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Del Valle Dam & Reservoir. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.