Snoqualmie, S. Fork

2. Twin Falls State Park to 424th Ave SE cul-de-sac

Reach banner
DifficultyII+
Length4.5 mi
Avg Gradient31 fpm
GaugeSf Snoqualmie River Ab Alice Creek Near Garcia, Wa
Flow Rate as of 27 minutes
296 cfsbelow recommended
Reach Info Last UpdatedDecember 23, 2025

River Description

FUN FACT: Convenient beginner whitewater to Seattle.

SEASON: Fall rains and spring snow melt, but can run into mid-summer.

ACCESS: To get to the put-in for this run, take exit 34 off of I-90. Turn south at the bottom of the exit ramp, head 0.5 mile on 468th Ave. SE., then turn left on SE 159th St. (look for the small sign that points to Twin Falls State Park). This turn, which is easy to miss, is just before the bridge across the river. Follow SE 159th St. 0.6 mile to its end at Twin Falls State Park. The put-in itself is easy and very accessible. It's about thirty feet from the parking lot.

Alternate put-in is just before the bridge over the river on 468th Ave SE (47.455285, -121.716553). This skips the first couple of rapids, but if the state park is closed, this is a good alternate.

Alternate take-out is on exit 32. If you are heading west on 90, from the put in, take a left at the exit and drive until you get to the big bridge crossing the river. Park on the side of the road here. This shortens the run by about a mile.

Take-out is at the cul-de-sac at the end of 424th Ave SE in North Bend (47.472584, -121.774568). Go underneath I-90 and park in the large cul-de-sac. When you exit the river, you'll climb up onto the dike, and walk northwest along the path for ~100yds, then follow the short path on the right down to the cul-de-sac.

DESCRIPTION:

This is a class II/II+ run depending on levels, but stay alert for wood hazards. Be especially careful in the section below the 468th Ave bridge. Stay left at the first island and look for wood before going into any channels. There is a mile or so of very active riverbed that changes annually.

The highlight of the trip is in Waskowitz Canyon, which can become a single long class II+ boulder slalom at higher flows. You will pass under a footbridge, pass the camp (on river right), and then enter an area with houses on river left. After you go under the next bridge, houses beg

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River Features

Twin Falls Trailhead Put In

Distance: 0 mi
Twin Falls Trailhead Put In

This access is the Twin Falls Trailhead at the end of SE 159th Street. Given the popularity of this hike, the parking lot can get crowded on weekends. To access the river, just walk from the parking lot to the river shoreline near the end of the parking lot where the trail starts.

468th St. Bridge, Alternate Access

Distance: 0.55 mi
Access Point
468th St. Bridge, Alternate Access

A put-in option if the State Park is full or you don't have your Discover Pass.

Waskowitz Canyon

Class: IIDistance: 2.16 mi
Rapid
Waskowitz Canyon

This short canyon is the highlight of the run.

Weir

Class: IIDistance: 3.1 mi
Rapid
Weir

A weir formed by rocks in the channel. There are several slots that provide options at this rapid.

Take Out

Distance: 3.68 mi
Take Out
Take Out

Take-out is at the cul-de-sac at the end of 424th Ave SE in North Bend (47.472584, -121.774568). Go underneath I-90 and park in the large cul-de-sac. When you exit the river, you'll climb up onto the dike, and walk northwest along the path for ~100yds, then follow the short path on the right down to the cul-de-sac.


Five of us took a leisurely paddle from Twin Falls down to the cul-de-sac. 3 hardshell kayaks, a packrafts, and a C1. Low flow, but enough water that we weren't scraping along. Much of the wood reported last month was gone and we didn't need to portage around anything. There were 3 significant trees down, all of which were easy to spot. The first two were above the canyon and were passable on river-left. The third was on Turtle Rock- full width of the river, but we were able to go under it on river right. At higher flows that might not be possible.

A great little run- in packrafts when you just need to get out on a beautiful day. Although the gauge was a bit low for our preference at 285CFS, we opted to give it a go. We were able to manage the low flow, with minimal butt scraping. We were also able to avoid the wood obstacles- by walking around the first river spanning tree on the exposed gravel bar and floating under two (see photos). At higher levels, the river spanning wood obstacles will likely need a different management solution. All in all, a great day, with good class II fun.

tried uploading photos.... but keep getting errors, unrelated to file size. I guess just be on the lookout for wood, especially near the clay wall.

I was with a large group of kayakers on Saturday, and we put in at the 468th Ave bridge, because Olallie SP was closed. We ran the river down to the 424th Ave cul-de-sac. It was a really fun level.

Turtle rock is sadly no more- the flood waters of the last couple of weeks moved the big stump that made the turtle's head. Here's what that rock used to look like. https://www.sanderlingphotography.com/SanderlingPhotography/PNW-Paddle-Clubs/2024/PTCC-SF-Snoqualmie/i-Qrpjb6V/A

There was a large tree across nearly the whole river immediately before the rock formerly known as Turtle Rock. It is passable by a narrow channel far left, or if you duck and the water level is low enough, you can go underneath it on river right.

Stop at the 468th St. Bridge.

Paddlers: Patrick (Kayak), Dale (Kayak), Meryl (Kayak), and Mark (Packraft).

The Upper MF at over 3500 CFS and recently ran it at 3100 CFS a few days prior that we decided to switch to the SF as the levels were in the recommended range at 850 CFS.

Weather: Was typical spring PNW weather with sunshine in the early afternoon phasing to cloudy and a drizzle and decent rain by the end.

Run: It was a fun solid run with good wave trains and strong currents at most rapids.  This is a good level for stronger Class II paddlers.

Hazards: Near the end of clay wall rapid there was a river level tree fell on river right.  Just be away as it might not be visible as its was barely under the surface.

SF Snoqualmie Lap

May 18, 2022


Yesterday we ran this section at around 700cfs and I'd say this is about the perfect level for beginner paddlers. Much less than this and the gravel bar sections would be pretty bony, much more and it will pick up speed and be a bit more continuous. Our group was just two packrafters, and I had used a razor scooter to shuttle through the side streets and across the bridge at Camp Waskowitz. The shuttle took me about 35 minutes intermittently walking and scootering. We put in at the parking lot for Twin Falls.

The first rapid is a nice warmup and is just a fun little chutey wave train banking off the left wall. After a couple more class II rapids the river passes under the 468th st bridge. From here the river calms down a tad for a good half mile or so, the first split right after the bridge we went right with no issues. Before you even realize it, you'll reach the Clay Wall rapid which is just an easy little wave train with one large boulder in the middle that I assume creates a nice hole at higher flows. We caught the eddy river left below the clay wall and took a quick pause. Leaving the clay wall, the river wraps around a big left bend and here's where we encountered the only wood hazard on the run. Basically the river split, 90% of the flow was going right so we followed. Very shortly after this the river splits again, only this time you must go left because the entire right channel which took most of the water with it drops under an absolutely nasty logjam. The entire current pushes under several channel spanning logs and an accident here would mean serious trouble. That being said if you take the second left channel the wood is easily avoidable and shouldn't pose a problem to those who are paying attention. A large boulder on river right marks the start of the class II+ rapids and there are a couple more as you approach Waskowitz Canyon. The first footbridge marks the start of Waskowitz Canyon, a continuous class II+ section of whitewater that lasts roughly 1/3 of a mile. There was no wood in play, and the rapids are basically just a big boulder garden with some holes and wave trains here and there. One thing I would note, on a sunny afternoon plan ahead and bring sunglasses. The entire canyon section we were being blinded by the reflection and it made not scouting kind of a pain in the ass.

The canyon section slowly tapers off as you pass under the second footbridge and then around a left hand turn. Shortly after this turn is 'the Weir'. This isn't really your typical 'weir' as there is no uniform drop and not much of a recirculating current. This rapid should not be disrespected, there are a couple nasty little pin rocks on several of the middle-left lines and at 700cfs there is not enough flow to make any of these slots clean. I ran one that looked like it had a decent flow through it but ended up skipping my ass down rocks before telling the girlfriend to walk around. There is an easy clean line far river right that avoids the entire feature but from the left side where we stopped to scout there wasn't much of chance of us making it back over there.

The river meanders it's way down to the 436th ave SE bridge and has a couple more class II rapids along the way. The takeout at the bridge is on river right. We took out in this micro eddy right before the bridge. It wasn't great for beginners to catch but it worked. There may be a better access point here at the bridge but I didn't look very hard. Whole float took roughly an hour and a half with a couple little stops to practice eddylines.

SA
Sara Anderson

Jan 3, 2021


New wood as of 1/2/21. Nearly river wide log above the logjam that's been there awhile--easy to spot. Stick left and either scoot or walk your boat depending on flows. Channels through the logjam below are still clear, far right goes, left side works when the river is high (otherwise makes for a bumpy ride).

Some wood still in the canyon about midway down. Log from river left near a nice break spot, you'll notice a branch from it sticking up towards the center of the river. There's now another branch on river right in the same area. Plenty of room down the center but with newer paddlers or swimmers be sure to keep an eye out.

Evening run down the South Fork with a few families.

Kids trip on the South Fork Snoqualmie with James, Lucas, and Leanna Girton and Tom, Aki, and Taka O'Keefe. It was a good day for a bike shuttle because no parking was avaialble at the State Park trailhead and cars were parked along the road all the way out to the Interstate.

A fun evening run down the South Fork Snoqualmie River where we encountered a few friends from Paddle Trails Canoe Club.