Snoqualmie, S. Fork - 2. Twin Falls State Park to 436th St. Bridge


Snoqualmie, S. Fork, Washington, US

Disclaimer

2. Twin Falls State Park to 436th St. Bridge

Usual Difficulty II+ (for normal flows)
Length 5 Miles
Avg. Gradient 31 fpm

Clay wall rapid


Clay wall rapid
Photo taken 05/18/10

Gauge Information

Name Range Difficulty Updated Level
SF SNOQUALMIE RIVER AB ALICE CREEK NEAR GARCIA, WA
usgs-12143400 300 - 2500 cfs II+ 00h45m 206 cfs (rc= -0.0 )


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. The 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.

DESCRIPTION:

This is a class II/II+ run depending on levels, but stay alert for wood hazards.

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 begin to appear on river right, and the canyon will open up. After a small rapid that makes a sharp left turn, there is a long pool and a weir. There are several runnable slots in the weir, mostly left of center. The easiest portage is on the far left (the old portage on the right has become overgrown with trees). The main hazard here is not the rapid, but logs that get caught on the weir during high water events.

If you really want to add spice to this run, instead of putting in at the parking lot hike the trail towards the falls, upstream, about a half mile or so. You will come to an area where the trail starts to ascend uphill. Right before this is a small trail that leads down to the river into Percolater Pool. This pool is at the bottom of the second of two class V drops, and makes a great put-in for the lower run, which is class III boogy water to the parking lot, where it calms down to class II. Upstream of this section the river drops 454' over a series of waterfalls.

It is also possible to extend this run. There are access points at two bridges in North Bend, and it is even possible to continue the run to the confluence with the Middle Fork. As you near the confluence, the gradient slackens significantly. In some years, this results in unpassable logjams, so be careful!

for additional information see

  • Bennett, J. and T. Bennett. 1997. A guide to the whitewater rivers of Washington, second edition. Swiftwater Publishing. Portland, OR.

StreamTeam Status: Not Verified
Last Updated: 2011-07-07 18:41:51

Editors



Clay wall rapid

Detail Trip Report  Clay wall rapid   @Snoqualmie, S. Fork 2. Twin Falls State Park to 436th St. Bridge, WA(1.63MB .jpeg)

turtle rock

Detail Trip Report  turtle rock  @Snoqualmie, S. Fork 2. Twin Falls State Park to 436th St. Bridge, WA(1.57MB .jpeg)

The Weir

Detail Trip Report  The Weir  SF Snoqualmie, WA(319.33KB .jpeg)

South Bend Island

Detail Trip Report  South Bend Island  SF Snoqualmie, WA(327.90KB .jpeg)

Approaching the Canyon

Detail Trip Report  Approaching the Canyon  SF Snoqualmie, WA(367.93KB .jpeg)

Entering the clay wall area

Detail Trip Report  Entering the clay wall area  SF Snoqualmie, WA(332.55KB .jpeg)

Mt. Si from the river

Detail Trip Report  Mt. Si from the river  SF Snoqualmie, WA(285.11KB .jpeg)

Lemming trees

Detail Trip Report  Lemming trees  SF Snoqualmie, WA(310.37KB .jpeg)

View of Mt. Si from the river

Detail Trip Report  View of Mt. Si from the river  SF Snoqualmie, WA(95.59KB .jpeg)

Boulder Garden

Detail Trip Report  Boulder Garden  Snoqualmie, S. Fork, WA(2.32MB .jpeg)


Gauge Information

Gauge Information

Name Range Difficulty Updated Level
SF SNOQUALMIE RIVER AB ALICE CREEK NEAR GARCIA, WA
usgs-12143400 300 - 2500 cfs II+ 00h45m 206 cfs (rc= -0.0 )

RangeWater LevelDifficultyComment
300 -2500 cfs barely runnable-high runnable II+

Report - Reports of Snoqualmie, S. Fork 2. Twin Falls State Park to 436th St. Bridge and related gauges

Reports give the public a chance to report on river conditions throughout the country as well as log the history of a river.

Reports

When River/Gauge Subject Level Reporter
1y269d08h46m @Snoqualmie, S. Fork 2. Twin Falls State Park to 436th St. Bridge [WA] Clay wall rapid n/a Geoff Gegwich
1y269d08h52m @Snoqualmie, S. Fork 2. Twin Falls State Park to 436th St. Bridge [WA] turtle rock n/a Geoff Gegwich
5y84d15h59m Snoqualmie, S. Fork [WA] Boulder Garden 310 cfs Dave Bowman
6y81d15h59m SF Snoqualmie [WA] The Weir 350cfs David Elliott

WXPort

News





User Comments


2011-01-21 02:51:21 (386 days ago)
David ElliottDetails
The log mentioned previously is now only taking up about 1/3 of the channel, and is no longer a
major hazard. Overall, the run is pretty clean if you take the established channels. Even the
section below the flatwater below Clay Wall has cleaned up.

2010-05-17 11:07:24 (634 days ago)
Geoff GegwichDetails
As of this past weekend a large log that stuck 3/4 of the way across the river (which you could
previously paddle under) has lowered and is a significant hazard. It is found a few rapids below
the clay wall and above what I call turtle rock...

2009-01-11 08:10:23 (1125 days ago)
the top half of the run changed alot in Jan '09 flood. Beware the errosion control [logs dug into
bank] the county installed, as the river has undermined these and the channel is almost totally
under them. one mile below edgewich bridge several sweepers have fell from the left bank, may be an
issue at <300cfs. Large log jam below the 'clay/sand wall' that totally obstructed the river
last summer has moved to the bank, the channel here is all new and braded, there is a great new
surf wave at the bottom left, best on the run. the canyon seems somewhat unchanged. the take out
eddy has suffered and is much smaller. look out for new wood below 300cfs. Edit

2008-05-07 07:41:32 (1374 days ago)
David ElliottDetails
There's really no info in the guidebooks about the South Fork below the class II+ run, but it's
worth knowing about. The SF is runnable down to the confluence with the Middle Fork. There are a
few rapids, but they are mostly above the first bridge in North Bend. After that, the gradient
begins to slacken. A couple of miles below the last bridge, the river turns sharply left and you'll
probably see some snags, which are dropped by the river when the current slows. From that point
until the confluence, there will be several logjams, which may or may not be passable. This stretch
changes drastically from year to year, and there's no way to know what it's like.<br>
<br>
In this stretch, it's possible to see herons and bald eagles. Once you reach the confluence with
the Middle Fork, the main Snoqualmie continues down into the town of Snoqualmie. You can take out
at the confluence, or continue down to another convenient takeout. This run is best at over 1000
cfs, but it's probably not a good idea to run it over 1500 cfs unless you've already run it once.

2008-05-07 07:40:40 (1374 days ago)
David ElliottDetails
This section of the SF Snoqualmie is quite a ways below the gauge. A more accurate estimate of the
flow is to take the flow at the gauge from about 6 hours earlier, and add in 3 times the flow of
Boxley Creek (there are at least 6 smaller creeks between the gauge and Boxley). The minimum flow
is listed as 300, but this section can easily be boated down to 200 on the gauge. The maximum flow
is listed as 1500, but I've IKed it as high as 2500 on the gauge with no trouble. At that flow, the
canyon really rocks, and the weir becomes very easy.

2008-05-07 07:36:45 (1374 days ago)
David ElliottDetails
There's lots of wood moving around in this run. There's a new small log across most of the river
just above the camp amphitheater. There's also a huge tree across the river below the clay wall
area - it's easy to get around it, but at higher water you may be forced to go over it. This one
could get caught in a bad place when we get high water.

2008-05-07 07:33:17 (1374 days ago)
David ElliottDetails
A wood structure has been placed along the right bank approximately 200 yards upstream of Edgewick
Road, or the first bridge you come to on this run. This is also approximately 500 yards downstream
of the put in. Please be aware of this hazard and look for it along river right and move left to
avoid it.
Users can submit comments.

Rapid Descriptions

icon of message No rapids entered. If you know names, and locations of the rapids please contact and advise the StreamTeam member for this run.

Do more than just check gauges; join over 5,000 AW members today.

Join_or_Renew_Logo-200px

Join or Renew


Or, consider donating

Donate_Logo-200px

Donate


Associated Projects

General Nonmember Message


 reach  
 state  
 reachlink  
 2. Twin Falls State Park to 436th St. Bridge, Snoqualmie, S. Fork Washington, US (mobile)