High Water

by Steve Eshom on June 13, 2010

Back in February I visited a viewpoint for BNSF’s crossing of the Columbia River.  At that point winter had been quite benign and there wasn’t much reason for the river to run high.

Fast forward to June.  During May the Vancouver area received nearly 200% of its ‘normal’ rainfall and through the first 13 days of June all but 4 days have received rain.  Now, this rain didn’t just fall in Vancouver it fell all over the region.  The result?  The Columbia, which drains a significant part of Washington, Idaho, Western Montana, and British Columbia, is running quite high.

How high is it?  Looking at the photos closely in February there were 13 1/2 courses on the pier between the cap and the water.  Today there were only 9.  Estimating a course at 18″ puts the river nearly 7′ higher than in February.  While that’s not a flood risk it is a bunch of water especially when you consider the overall width and length of the Columbia.

  • Robert in Port Townsend
    Uhm. I see hyperlinks not allowed! So you cannot see the NOAA River Forcast Chart. Today the river is at 12.25 feet, 80% of "bank full" 15.0 feet. Flood stage is 16.0 feet...
  • Robert in Port Townsend
    The bridge is beginning to show its age! A previous post mentions the possibility of tide playing a part in your “counting of courses” tide gauge|! Recalling more than 20 years of boating on the Columbia, some observations: The BNSF bridge is 17.3 feet above sea level. The tide range at Astoria, RM 12, is 6.7 feet. At the bridge, RM 105, 1.3 feet. Normal predicted high water at RM 105 is 15.6 feet (spring freshet’s). A quick check of NOAA shows the river is above predicted High, moving toward flood stage.

    But nowhere near the drama in February 1996, when, at flood stage 27.1 feet, you could literally ride your sea kayak into the dining room at Who Song and Larry’s, a popular Vancouver eatery!
  • Greg Brown
    Also, the tide may have some effect on the water level.
  • Rod
    Remember, however, that the wild card is the dam operators upstream. And there are a bunch of them...

    Love this blog and love the photos.
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