Mysterious sign seen on Hank's Truck Pictures

[D-Dey65]

I thought about asking this question of one of the photographers who posted this image on "Hank's Truck Pictures, but I thought that I'd try it here instead:

http://www.hankstruckpictures.com/pix/trucks/dfaust/2008/06-27/img_0645.jpg

I see a few signs after the merge sign there. What are they?

[mightyace]

From what little I can see in the image, they look like the truck rollover warning sign.  The other clue to me is the sharpness of the turn ahead.

[myosh_tino]

The second warning sign looks like a curve-ahead warning sign with an advisory speed limit.  The first warning sign is too fuzzy for me.

[Bickendan]

I'd venture it's a truck roll-over advisory/warning sign, given by the freeway's curves and the curve-ahead warning sign.

Do you know where this shot is?

[agentsteel53]

odd thing is, the truck (or whatever that big blob is) looks to be perfectly level.  On a rollover warning sign, the truck is at quite the exaggerated angle of failure.

email David Faust and seeing if he has the higher-resolution original.

[J N Winkler]

That slope is tall enough and steep enough to generate some significant katabatic winds--I suspect the off-in-the-distance sign warns truckers specifically of gusts.

[Alps]

It has two pink flags on the sign, which usually indicates it's either a temporary or a new condition.  It can also be used in case of a sudden warning of something that hasn't been experienced to that point.  I do see the large blockish truck outline, but if anything, it's tilted to the right.  I've never seen a graphical wind gust sign that looks remotely like that, so I doubt it's that, but I'd also agree it doesn't seem like trucks tipping.  Could it be for rocks falling?  If it were another country, I'd suggest a tunnel sign.

[Scott5114]

From other pictures I've seen, that looks a lot like it could be EB I-70 west of Denver, coming down out of the Rockies.

[froggie]

A little digging on the website shows this to be the Rye Valley, OR exit (Exit 340) on I-84, and specifically looking westbound.

GMSV isn't very helpful, but the first sign does appear to be ODOT's version of W1-13 (the truck rollover sign).  Can't tell what the advisory sign says.

Second sign is definitely a curve sign, with a 55 MPH advisory speed.

[Bickendan]

The rectangular orange sign before the merge advisory? That'd be ODOT's "End Road Work" sign.

[Alex]

One appears to be just a truck advisory sign. The following image looks at the sign posted along eastbound Interstate 84 after Exit 330:



The rectangular sign is a speed-advisory sign. Several of these are posted along that stretch of Interstate 84, including this eastbound assembly after Exit 335.