Washington / Lower Granite Lake /
Offield Landing Boat Ramp
Boat ramp · on Lower Granite Lake · near Wawawai · Washington
Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2020 and 2023 to 2025.
state reports compiled by U.S. EPA · checked October 18, 2026
Open per U.S. Army Corps of Engineers recreation area status's data, checked May 8, 2026. Seasonal gates, low water and storms are not always posted; check before you tow.
At the launch
- Type
- Boat ramp
- Ramp surface
- Concrete
- Car parking
- Yes
- Restrooms
- Yes
- Managed by
- U.S. Army Corps of Engineers
- Coordinates
- 46.65214, -117.41798
Channel depths in feet from the Army Corps' surveys (Walla Walla District; the one nearest this launch is of January 30, 2024). Not for navigation.
Conditions
- Weather forecast for this launch · National Weather Service
- Lake level at Lower Granite Lock and Dam · USACE
Lake level: Lower Granite Lake
Today's level loads here; without it, see the agency's page below.
Full pool is 738.0 ft (USACE, Top of Normal).
Level from U.S. Army Corps of Engineers, Corps Water Management System (Lower Granite Lock and Dam), about hourly; the agency's page. Levels change; check conditions at the ramp before you launch.
On the river
River mile 108.1 on Snake River · U.S. Army Corps of Engineers Navigation Mile Markers, placed between its mile markers
Sources: U.S. Army Corps of Engineers Navigation Mile Markers.
Channel survey
The Army Corps surveys the channels it maintains and posts every survey.
- Lower Granite · 0.2 mi from this launch
Condition survey of January 30, 2024 by the Walla Walla District. Soundings on the sheet down to 141.9 ft, with bars at or above it; the Corps maintains a 9 ft channel here. Survey sheet (PDF)
US Army Corps of Engineers hydrographic surveys, from eHydro. A survey shows the bottom on the day it was made; channels shoal after high water and change with dredging. Not for navigation.
On Lower Granite Lake
Reservoir in Washington. All launches on Lower Granite Lake.
Community
Where people who use Lower Granite Lake talk about it.
Nearby launches
- Wawawai Landing Boat Ramp · 2.4 mi · Lower Granite Lake
- Illia Landing Boat Ramp · 4.0 mi · Lake Bryan
- Blyton Landing Boat Ramp · 9.4 mi · Lower Granite Lake
- Nisqually John Landing Boat Ramp · 14.9 mi · Lower Granite Lake
- Willow Landing Boat Ramp · 15.8 mi · Lake Bryan
- Greenbelt Ramp · 24.1 mi · Snake River
Sources
- U.S. Army Corps of Engineers boat ramps (FHWA Federal Lands Transportation Facility Inventory) record 707-2574030-7-001 · US federal government data, public domain (FHWA Federal Lands Transportation Facility Inventory, U.S. Army Corps of Engineers submittal)
- U.S. Army Corps of Engineers recreation area status open or closed status · US federal government data, public domain (U.S. Army Corps of Engineers Natural Resource Management Program)
- OpenStreetMap n8564983365 © OpenStreetMap contributors, ODbL
Why it is listed as public: listed by U.S. Army Corps of Engineers boat ramps (FHWA Federal Lands Transportation Facility Inventory). Something wrong, or is this launch private? Send a correction; it goes to a person.