Rock Island Pool Water Level Today
Washington · near East Wenatchee Bench, Washington · Near full pool
- Elevation
- 611.94 ft
- From full pool
- −1.06 ft
- Percent of pool
- n/a
- 24-hour change
- −0.10 ft
- 7-day change
- −0.18 ft
- Reading
- Sep 21, 2026 · USACE
Last year at Rock Island Pool
Rock Island Pool is 1.06 ft below full pool, at 611.94 ft, down 0.10 ft in the last 24 hours. The top of the flood pool is 7.1 ft higher, at 619.00 ft.
Over the last 7 days the level fell 0.18 ft, and over 30 days it fell 0.26 ft. In the 396 days of readings on this page the high was 612.71 ft on Mar 24, 2026 and the low was 610.69 ft on Dec 26, 2025, a range of 2.02 ft.
The reading is the U.S. Army Corps of Engineers gauge at Rock Island Dam, near East Wenatchee Bench, Washington, taken Sep 21, 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.
Rock Island Pool pool elevations
| Current elevation | 611.94 ft |
|---|---|
| Full pool (top of conservation) | 613.00 ft |
| Top of flood pool | 619.00 ft |
| Top of dam | 619.00 ft |
| Inflow | 41,800 cfs |
| Outflow | 49,300 cfs |
| 30-day change | −0.26 ft |
| 1-year high | 612.71 ft (Mar 24, 2026) |
| 1-year low | 610.69 ft (Dec 26, 2025) |
| Vertical datum | NGVD29 |
| Operating agency | U.S. Army Corps of Engineers, NWDP district |
Source: U.S. Army Corps of Engineers. Read what full pool and flood pool mean.
More lakes in Washington
- Lake Roosevelt 1,283.60 ft, −6.40 ft from full
- Baker Lake 722.05 ft, +10.49 ft from full
- Howard A Hanson Lake 1,146.65 ft, −20.35 ft from full
- Lake Entiat 705.65 ft, −1.35 ft from full
- Lake Pateros 777.87 ft, −3.13 ft from full
- Little Goose Lake 636.63 ft, −1.37 ft from full
Rock Island Pool level questions
What is the water level of Rock Island Pool today?
Rock Island Pool is at 611.94 ft as of Sep 21, 2026, −1.06 ft relative to full pool (613.00 ft). The 24-hour change is −0.10 ft.
What is full pool at Rock Island Pool?
Full pool, the top of the conservation pool, is 613.00 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 619.00 ft.
Is Rock Island Pool rising or falling?
Over the last 24 hours the level is −0.10 ft; over 7 days it fell 0.18 ft, and over 30 days it fell 0.26 ft.
Where does this Rock Island Pool level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Rock Island Dam. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.