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Downgrade diagram signs

Started by Revive 755, June 22, 2009, 05:17:00 PM

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Revive 755

This one is on SB/EB US 322 between State College and US 22 in PA:


Turned up this one on WB I-90 at the ID-MT state line today:
http://maps.google.com/maps?hl=en&ie=UTF8&ll=47.454802,-115.694747&spn=0,359.994507&z=18&layer=c&cbll=47.454714,-115.694715&panoid=lCusG6z6GKmhIPlJXgL3SQ&cbp=12,60.9,,0,1.22

Any others out there?


Alex

I found this one in 2000:



IIRC there is also another one on Idaho 55 north of Boise.

agentsteel53

I believe there is one approaching Punxsutawney, PA from the south on US-119.
live from sunny San Diego.

http://shields.aaroads.com

jake@aaroads.com

njroadhorse

Quote from: agentsteel53 on June 22, 2009, 07:18:42 PM
I believe there is one approaching Punxsutawney, PA from the south on US-119.
There's one on Alps's site, but I don't want to hotlink off his site.
NJ Roads FTW!
Quote from: agentsteel53 on September 30, 2009, 04:04:11 PM
I-99... the Glen Quagmire of interstate routes??

J N Winkler

There are at least two on US 95 in Idaho between the international boundary and the Idaho 55 junction.  The ones I remember are at Lewiston Hill and White Bird Hill.  The Idaho 55 one is at Horseshoe Bend Hill:

http://winklers-roads.fotopic.net/p16863482.html

Street View has a really bad picture of the Lewiston hill descent sign:

http://maps.google.com/maps?q=Lewiston,+Idaho&ie=UTF8&ll=46.461707,-117.014995&spn=0.001885,0.004828&t=h&z=18&layer=c&cbll=46.461701,-117.01487&panoid=MiRFDWrFYuKhUCgtXNSjEg&cbp=12,184.91,,2,5.97

Idaho is far from alone in using this kind of signing.  Wyoming has beautifully elaborate ones on US 14 ALT west of Burgess Junction, but they are unlikely to show up well on Street View because they are at truck laybys, set well back from the road--a problem which is very typical of hill descent signs in general.

Fortunately I do have pictures, because I always made a special point of stopping and photographing these hill descent treatments when I travelled in the Rocky Mountain states.

http://winklers-roads.fotopic.net/p19305179.html

http://winklers-roads.fotopic.net/p19305171.html

There are not too many of these signs on Interstates, though I-84 over Cabbage Hill in Oregon has special advisory signing for trucks and the no-services bit of Utah I-70 has a proper hill descent sign at the Spotted Wolf Alignment.
"It is necessary to spend a hundred lire now to save a thousand lire later."--Piero Puricelli, explaining the need for a first-class road system to Benito Mussolini

PAHighways

Quote from: agentsteel53 on June 22, 2009, 07:18:42 PM
I believe there is one approaching Punxsutawney, PA from the south on US-119.

I have that one, and several others, in my Guide Signs gallery.

agentsteel53

that's the one!  I alas appear not to have gotten a photo.  I did get this, though ...

live from sunny San Diego.

http://shields.aaroads.com

jake@aaroads.com

US71

Like Alice I Try To Believe Three Impossible Things Before Breakfast

corco

Idaho has one on 55 at the top of Horseshoe Bend Grade, and then there are some on US-95's Lewiston Grade, Midvale Grade and Whitebird Grade; Unfortunately I have pictures of none of those.

Here's Washington SR 272 west approaching US-195 and Colfax


Alex



Found our photo of the Idaho 55 sign mentioned by Jonathan above.



We also stopped for the guide sign at the Montana and Idaho state line for Interstate 90.

Michael

This page has pictures of signs (no diagrams though) on I-70 west of Denver.  Some of them seem like overkill, but I guess some people don't get the message easily.

Here's a diagram on NY 28 south of Mohawk from Upstate NY Roads.



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