Whittier Narrows Dam SanGabriel Lake Water Level Today
California · near South El Monte · Below full pool
- Elevation
- 201.80 ft
- From full pool
- −11.70 ft
- Percent of pool
- n/a
- 24-hour change
- +0.20 ft
- 7-day change
- +2.00 ft
- Reading
- Sep 14, 2026 · USACE
Last year at Whittier Narrows Dam SanGabriel Lake
Whittier Narrows Dam SanGabriel Lake is 11.70 ft below full pool, at 201.80 ft, up 0.20 ft in the last 24 hours. The top of the flood pool is 26.7 ft higher, at 228.50 ft.
Over the last 7 days the level rose 2.00 ft, and over 30 days it rose 1.30 ft. In the 131 days of readings on this page the high was 208.90 ft on Feb 11, 2026 and the low was 199.60 ft on Aug 18, 2025, a range of 9.30 ft.
The reading is the U.S. Army Corps of Engineers gauge at Whittier Narrows Dam SanGabriel, near South El Monte, taken Sep 14, 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.
Whittier Narrows Dam SanGabriel Lake pool elevations
| Current elevation | 201.80 ft |
|---|---|
| Full pool (top of conservation) | 213.50 ft |
| Top of flood pool | 228.50 ft |
| Top of dam | 239.00 ft |
| Inflow | 199 cfs |
| Outflow | 204 cfs |
| 30-day change | +1.30 ft |
| 1-year high | 208.90 ft (Feb 11, 2026) |
| 1-year low | 199.60 ft (Aug 18, 2025) |
| Vertical datum | NGVD29 |
| Operating agency | U.S. Army Corps of Engineers, SPL 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
Whittier Narrows Dam SanGabriel Lake level questions
What is the water level of Whittier Narrows Dam SanGabriel Lake today?
Whittier Narrows Dam SanGabriel Lake is at 201.80 ft as of Sep 14, 2026, −11.70 ft relative to full pool (213.50 ft). The 24-hour change is +0.20 ft.
What is full pool at Whittier Narrows Dam SanGabriel Lake?
Full pool, the top of the conservation pool, is 213.50 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 228.50 ft.
Is Whittier Narrows Dam SanGabriel Lake rising or falling?
Over the last 24 hours the level is +0.20 ft; over 7 days it rose 2.00 ft, and over 30 days it rose 1.30 ft.
Where does this Whittier Narrows Dam SanGabriel Lake level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Whittier Narrows Dam SanGabriel. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.