Lower Monumental Lock and Dam Fishing Report
Based on live releases/levels and local weather.
Live Lower Monumental Lock and Dam fishing conditions near Walla Walla, WA: USACE release, reservoir level, and local weather. Use the latest CFS and level trends to time your trip and pick safe access.
Lower Monumental Lock and Dam snapshot
Lower_Monumental_Dam Datum Correction 1929-1988 (CorpsCon 6) = 3.327 Ft Lower Monumental Lock and Dam sits near Walla Walla, WA and is monitored by the U.S. Army Corps of Engineers NWDP district. Coordinates: 46.5627°, -118.5384°. Also known as Lower Monumental Dam.
- Latest release
- 35,200 CFS
- Recorded 2026-06-19 07:00 UTC
- Latest lake level
- Not reported
Very high release: dangerous near outlets and below the dam. Avoid swift water and follow posted warnings.
Source: U.S. Army Corps of Engineers CWMS public feeds. See the Lower Monumental Lock and Dam water level & flow charts for 7‑day history.