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RiverBrain

Colorado – US

Class
IV+ to V
Length
10.5 Mile(s)
Typical season
April to November
Author
KSC

Current Flow

260 CFS

Gauge height: 0.98 FT

Reading from Jul 10, 2026 10:15 PM

2.08/hr (12h) 1.04/hr (24h)

Running

Hit some laps

Primary gauge
NORTH FORK SOUTH PLATTE RIVER AT BAILEY Gauge detail & alternatives Live gauge ↗
Flow formula
[ROBERTS TUNNEL AT EAST PORTAL NEAR GRANT] computes to 254.0 right now
Alternative gauge
[ROBERTS TUNNEL AT EAST PORTAL NEAR GRANT] 254 CFS
Alternative gauge
[NORTH FORK SOUTH PLATTE RIVER AT GRANT] 339 CFS
Alternative gauge
[NORTH FORK SOUTH PLATTE RIVER AT BAILEY][NORTH FORK SOUTH PLATTE RIVER AT BAILEY] Visual or unknown

Recommended levels

Minimum200
Average350
Maximum1,500

Recommended use

  • Kayaking
  • Rafting
  • Canoeing
  • SUP
  • Packrafting
  • Fishing

Struck-through craft are not recommended for this run.

Flow history — last 6 days

Photos

Supermax Launch Pad · 10-09-2010 · 380 cfs · Photo by Kevin Cripps · Subject: Nick Wigston

Open in full map →

Description

Bailey Canyon is a Colorado whitewater classic, if not for its endless class IV rapids through a beautiful canyon, then for its long season brought to you by the burgeoning Denver metropolis.  Although a short natural runoff does exist, most boatable flows are provided by water transports from Lake Dillion to Denver via the Roberts Tunnel.  Bailey is often a stepping stone for aspiring class V boaters.  Its easily portagable rapids make it an ideal spot for a class IV boater to try to step it up on a good day, or play it safe when not feeling it.

2010 ushered in the start of the annual Bailey Fest.  Denver Water has agreed to conditional releases on the North Fork of the South Platte for a weekend in mid August.  Events, food, drinks, and camping are provided for boaters who come to enjoy the increased flows. Ironically, on high water years such as 2014 and 2015, this release may be cancelled because Denver doesn't need the water and legally can't take what it doesn't need.

For those interested in gauge details, there are two gauges above the run, one in Bailey and one Grant (roughly 10 miles above Bailey).  These gauges often show a slight discrepency, even after the seasonal runoff.  Fortunately, the values agree enough that either gauge is sufficiently accurate for the purpose of boating through Bailey Canyon.  If it is late season and it hasn't been raining, expect somewhere on the order of 50 cfs more than the Roberts Tunnel release to be in the canyon.

Bailey Gauge: https://www.dwr.state.co.us/SurfaceWater/data/detail_graph.aspx?ID=PLABAICO&MTYPE=DISCHRG

Roberts Tunnel Gauge: https://www.dwr.state.co.us/SurfaceWater/data/detail_graph.aspx?ID=ROBTUNCO&MTYPE=DISCHRG

River Map

Shuttle Map

Rapids

# Rapid Class Recommended flow Description Scout
1 Four Falls (aka Foley Falls) V —–—

This rapid consists of four distinct drops.  The first drop sets the class V rating.  The remainder of the drops are class IV in nature.

 

The first drop is frequently portaged due to a significant amount of water pouring into cut out rock on river left.  Although the move is class IV, the consequences are class V.  Most people portage but the rapid is still run frequently and although life threatening situations seem to be rare, beatdowns in the hole occur regularly and almost always result in an out of boat experience that takes the swimmer deep.

The second drop is a 3-4ft sloping drop ready to stern squirt any boater with a mistimed boof.  Keep your weight forward, utilize a delayed boof stroke and be prepared for the often rocky runout.

The third drop is an easy boof normally run down the middle but a sloppy entrance can result in a hole surf.

The fourth drop is an easy and fun 3 foot boof.

Historically, it was thought that the land around Four Falls was private.  We have Ian Foley to thank for correcting this mistake.  He prompted a survey in June of 2013 that revealed the private land boundary starts a couple hundred yards upstream of the normal portage/scout eddy for Four Falls and all the land around Four Fall is public national forest land.  As always, tread lightly and be respectiful of the land you pass through, but there are no longer any concerns about trespassing on private property at this rapid.

Four Falls can sneak up on the unsuspecting boater.  When the canyon begins to tighten, keep an eye out for a decent sized eddy on river right.  If you see a steep, more dramatic cliff wall on river left with a horizon line, you are likely approaching the first fall.  There is a graded path to use for the portage and scout on river right. 

2 The Steeps: Goal Post IV- to IV —–—

The next mile of whitewater is generally lumped into a long set of rapids collectively called the Steeps.  The first rapid of the Steeps starts out with a tight move between two boulders.  If you don't like the move, alternatives are available.

The Steeps are rarely scouted.

3 The Steeps: S-turn IV to IV+ —–—

The next major rapid in the Steeps section drops the most gradient of the set.  The clean line starts river right and bends back to river left.  Failure to move back left sends the boater off a small ledge into a bad pin spot.  Stay with the current and move left at the bottom.

4 The Steeps: Eddyhopper IV- to IV —–—

The last major rapid in the Steeps is usually entered on river right, but be aware that at normal (lower) flows, there are some small rocks just above the water level that can knock an unsuspecting boater off line.  At higher water, the first hole has punished many poor boofs with a sticky hole ride.  This rapid contains some fun eddy hop moves midway through for those looking to make it more interesting.

5 Supermax V- to V —–—

After the steeps the action mellows out.  Dodge some rocks and keep an eye out for Supermax.  For the last several years, the last good eddy before Supermax has been marked by a cairn on river left.  Keep your eyes peeled because this rapid can sneak up on you.  For most, Supermax is the crux rapid of the run.  The river makes a strange bend in the top half just above a nasty looking undercut.  Most people who get too friendly with the undercut flush through, but I have heard reports of boaters getting stuck in their boats in the undercut and having to swim out.

The bottom half is run more frequently and is referred to affectionately as Tampax.  Those who chose to skip the upper half have only run Tampax.  Tampax should not be taken lightly either, but tends to be very forgiving for the amount of gradient it drops.

At high water, the undercut is less in play but the holes in Tampax become significant.

Scout along the obvious path on river left.  Look for wild raspberries in the fall.

6 Trashcan IV- to IV —–—

Not long after Supermax, the river becomes a bit steeper again, marking the start of Trashcan.  A couple of large rocks split the channel in half.  Most people prefer to take the less rocky, but slightly more technical far left line, making a 90 degree turn at the bottom of the rapid back into the main flow.  However, all the lines go here, just make sure to keep the cockpit right side up.  

Stay heads up for the Speedtrap eddy 100 yards after Trashcan.  The sharp eddyline punishes boaters with a poor roll.

7 Deer Creek IV+ to V- —–—

After a number of fun rapids, Deer Creek comes in from river left and joins the South Platte.  Although the creek is often missed by passing boaters, a massive rock plate leaning against the right canyon wall signals that Deer Creek rapid is approaching.  Eddy out river left behind a huge boulder to scout.  This rapid is steep, boats remarkably smoothly, but has been the site of some nasty injuries.  I've heard multiple stories of shoulder dislocations caused by running the last two slides upside down.  As an upcoming class IV boater, the first time I saw this rapid, I was terrified by the gradient, but after watching a couple successful runs I gave it a shot and instantly fell in love.  

Multiple lines exist, but at normal flows a rock grind on the left side of the first slide is a favorite.  At higher flows this rapid becomes more legit and worthy of a scout for most boaters.

8 Uppercut Undercut III+ —–—

After Deer Creek, you may think you're done, but don't fall asleep just yet.  A small bend left to right into a narrow channel signals this drop that contains a boat sized undercut at lower flows.  Boof right.

9 Mystery Eddy IV- —–—

This is the last rapid on the run.  A huge boulder presents itself on river left, funnelling all the water to the right side. Half way through the drop, the boater has a choice of going left into an eddy behind the boulder, or charging straight through the right channel.  Catching the left "mystery eddy" is unequivocally fun for both the boater and the boaters behind, as they watch you disappear.  Be aware that the rock that splits the lower channel, just below the mystery eddy, presents a potentially dangerous pin spot.

Access

Type Name Elevation Camping Water Boat ramp Vehicle access Description
Put-In Bailey No No No All Vehicles

Put in at the town of Bailey.  The community has built a small parking area behind the liquor store and next to some public bathrooms for boaters to utilize.

Take-Out Pine Valley Ranch Park No No No All Vehicles

Pine Valley Ranch Park is 10 minutes down the road from Pine Junction.  Fight the mountain bikers and picnicers for a good parking place on busy summer weekends.

Camps

No river camps added yet.

Permit

No permit is required, or permit info hasn't been added yet.

Fishing

No fish species have been associated with this run yet.

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