Go Back   Mountain Buzz > Whitewater Boating > Whitewater Kayaking

Thread Tools Display Modes
Old 02-25-2008   #1
Tom Martin's Avatar
Flagstaff, Arizona
Join Date: Dec 2004
Posts: 818
RRFW Riverwire – Grand Canyon Flood Tentatively Set For March 5, 2008

RRFW Riverwire – Grand Canyon Flood Tentatively Set For March 5, 2008
February 25, 2008

The Grand Canyon National Park web site has posted an information page on the possible High-Flow experiment set to release 41,000 cubic feet per second for the Colorado River through the park to begin March 5 lasting through March 9, 2008.

The high flow will occur by releasing water from Glen Canyon Dam, 14 miles upstream of the park boundary.

A final decision has yet to be made by the Department of Interior, and is expected within the week.

After the decision is finalized, Grand Canyon National Park will be notifying all permittees conducting a river trip to be alert for the High-Flow event. The Park has posted some information on river flows, campsite changes, and other river running related information at:

Useful information is also found in a link to the Grand Canyon Monitoring and Research Center web site with estimated water levels at 46 selected campsites along the river. Individual maps show projected water levels in popular river runner camps such as South Canyon at 31.9 Mile, Carbon at 65.1 Mile, Cremation at 88.7 Mile, Pancho’s, Football and Backeddy at 137.7, and the Upper and Middle 220 Mile camps, at 220 Mile. For more information see:

The Grand Canyon Monitoring and Research Center web site also has a table showing how the flow of water will move through the canyon at:

It is estimated that over 20 self guided river trips will be traveling through some part of the canyon during the flood. Competition for campsites is expected to increase as the higher water levels inundate large amounts of traditional camps.

River runners can expect river flows of 6 to 8 miles per hour during the flood. This flow will decrease on-the-river travel times allowing more time in camp or for side canyon hiking. Higher flows “wash out” some rapids, making them easier, but the quicker current can make some more challenging. RRFW urges river travelers to be more cautious.

As part of the 2006 Colorado River Management Plan, Grand Canyon National Park had set aside March as a motor-free period for recreational river runners. However, during the release, river travelers can expect to see an unusually high number of motorized watercraft conducting scientific research before, during and after the high flow.

The experiment was conducted last in 1996 and 2004. Those tests revealed there is not enough sediment entering the river ecosystem below Glen Canyon Dam to make up for even a small percentage of the 44 million tons of sediment that would otherwise be entering the system on an annual basis were the dam not in place.

The High-Flow release scheduled for this March is only one third the volume of the pre-Glen Canyon Dam flow that normally occurred in late May or June following a winter like the one at present, with a snowpack at 160% of normal.

RRFW would like to remind river runners heading to take out at South Cove that the new Pearce Ferry rapid at mile 280 is continually evolving. Now estimated to be a class 4 rapid (on a scale of 1-6), the higher flows may hasten changes at this rapid. The potential for accident or injury to an unwary trip at this rapid is high, particularly when night-floating.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~
RIVERWIRE is a free service to the community of river lovers from River Runners for Wilderness. To join, send an e-mail address to riverwire@rrfw.org and we'll add it to the RRFW RIVERWIRE e-mail alerts list.

Join RRFW's listserver to stay abreast of and participate in the latest river issues. It's as easy as sending a blank e-mail to Rafting_Grand_Canyon-subscribe@yahoogroups.com

Check out RRFW's Rafting Grand Canyon Wiki for free information on Do-It-Yourself Grand Canyon rafting info http://www.rrfw.org/RaftingGrandCanyon/Main_Page

Check out new items and donate at the RRFW Store! RRFW is a non-profit project of Living Rivers.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~

Tom Martin is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Topic Thread Starter Forum Replies Last Post
RRFW Riverwire – Court Date Set for Grand Canyon Litigation Tom Martin Whitewater Kayaking 0 10-17-2007 07:11 PM
RRFW Riverwire – GRAND CANYON LITIGATION UPDATE Tom Martin Whitewater Kayaking 1 09-09-2007 06:48 PM
RRFW Riverwire – Yet Another Grand Canyon Lottery Started Tom Martin Whitewater Kayaking 70 06-25-2007 10:43 AM
RRFW Riverwire – HELP AVAILABLE FOR GRAND CANYON LOTTERY Tom Martin Whitewater Kayaking 0 05-07-2007 10:54 PM
RRFW Riverwire Β– NEW GRAND CANYON SUPERINTENDENT NAMED Tom Martin Whitewater Kayaking 0 02-05-2007 03:18 PM

» Classified Ads
AT and AT4 paddles

posted by CFriday

AT Paddle is a 194cm and AT4 paddle is 197. Both are in...

whitewater kayaks

posted by leatherneck

2012 Fluid Solo Expedition kayak. Boat is in good shape....


posted by Rendezvous River Sports


Powered by vBadvanced CMPS v3.2.3

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2012 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:02 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.