Navigation lock notices can be found here:
Notices to Navigation Interests (NTNI) site
Type the NTNI number (listed in parenthesis) into the search bar to bring up the notice you're after. Searches can also be made by river and river basin.
Most recent notices:
23-22 (205048) Walla Walla District Winter Recreation Vessel Lockage Schedule
23-21 (203165) Walla Walla District 2024 Extended Navigation Maintenance Outage
23-17 (202513) Scheduled Lock Closure at Lower Granite
23-16 (202478) Slower Lockages at Lower Monumental Lock and Dam
23-15 (202437) Walla Walla District Spring Spill/MOP Operations
23-14 (202350) Slower Lockages at Lower Granite
23-13 (202312) McNary Navigation Lock Back in Service
23-12 (202293) Slower Lockages at Lower Monumental
23-10a (202134-1) Amendment to Slower Lockages at Little Goose
23-11 (202193) Slower Lockages at Lower Monumental
23-10 (202134) Slower Lockages at Little Goose
23-09a (202131-1) Amendment to Possible Delays at Ice Harbor Navigation Lock
23-09 (202131) Possible Delays at Ice Harbor Navigation Lock
23-08 (202130) Return of Lower Granite Pool to Full Operating Range
23-06c (201734-3) Amendment 3 to Scheduled Daily Lock Outages at Little Goose and Lower Granite
23-06b (201734-2) Amendment 2 to Scheduled Daily Lock Outages at Little Goose and Lower Granite
23-06a (201734-1) Amendment to Scheduled Daily Lock Outages at Little Goose and Lower Granite
23-07 (201844) Slower Lockages at Ice Harbor Lock and Dam
23-06 (201734) Scheduled Daily Lock Outages at Little Goose and Lower Granite
23-05 (201704) Little Goose Navigation Lock Out of Service
23-04a (201611-1) Amendment to Slower Lockages at Little Goose
23-04 (201611) Slower Lockages at Little Goose
23-03 (201610) Possible Lock Delays at Lower Granite
23-02a (201534-1) Amendment to Slower Lockages at Ice Harbor Navigation Lock
23-02 (201534) Slower Lockages at Ice Harbor Navigation Lock
23-01a (201391-1) Amendment to NWW Fall Spill Operations
23-01 (201391) NWW Fall Spill Operations