Data Disclaimer: Water level data is provided by USGS and NOAA for informational purposes only. Verify conditions on-site before any water activities. Learn more
Access Site WA

Barrier Dam

Cowlitz River Mill Creek

Source: washington_department_of_fish_and_wildlife Updated 1 year ago

City: Mossyrock, WA
County: Lewis County
Type: Boat Ramp
Location: 46.51603128, -122.63801478
Air Temp: --
Location
Live Webcam
Live webcam view
Nearby Gauge Conditions
Whitewater Run
I-II Put-in Cowlitz - 3. salmon hatchery to Blue Creek access (The Lower)
9 ft/mi
View Run
Current Conditions
-- • 1000.00-4000.00 cfs
Cowlitz River below Mayfield DAM, WA
Whitewater Runs on Cowlitz River
3 runs (2 nearby)
Difficulty Classes
I Easy II Novice III Intermediate IV Advanced V Expert/Extreme VI Unrunnable
Position relative to this access site: Put-in at this location This location is on the run Take-out at this location
Downstream from here Upstream from here
These whitewater runs are on the same river but located more than 50 miles from this access site.
Whitewater data from American Whitewater
About This Access Site
**Overview & Facilities**
Barrier Dam is a concrete boat ramp located near Mossyrock in Lewis County, providing year-round access to the Cowlitz River. The site includes a paved parking lot, restrooms, and an ADA-accessible fishing ramp with a concrete pad that extends to the water's edge. This makes it a convenient starting point for paddlers and boaters of various skill levels and mobility needs.

**Popular Paddling Routes**
The most popular paddling run from Barrier Dam is the drift downstream to the Blue Creek ramp, which offers a manageable section for recreational boaters and kayakers. Multiple drift options exist further downriver, including runs to Mission Bar and the I-5 boat launch. Before launching, check current water conditions and river flow, as the Cowlitz can vary seasonally.

**Practical Tips**
Note that this is an active access point with good infrastructure, but plan accordingly for parking security. The site is open year-round, making it accessible in most seasons. Whether you're starting a multi-day paddle or doing a day trip, Barrier Dam offers a solid launching point with essential amenities for paddlers heading downstream.