Was this sign standard at one time?

[bugo]

[agentsteel53]

it is in the 1948 and 1961 MUTCDs.  the '35 doesn't appear to mention it, though that MUTCD's organization is sufficiently different that I just plain may have missed it.

the '71 has a two-sign assembly replacing it.  a diamond with the up and down arrows with the height in between, and a smaller rectangular panel with the words LOW CLEARANCE.

except for the shithat font, this is '71 spec:



and now I will say five Hail Marys and memorize the exact specs of a 1948 16" cutout US route marker, as penance for cracking open the 1971 MUTCD.  blecccch.

[bugo]

BTW the picture was taken on old US 65 in Missouri in the winter of 2000/2001.

[hbelkins]

Oh yeah. I remember those in Kentucky.

[hotdogPi]

The point is that 14 feet isn't low, right?

[Kacie Jane]

The point is that 14 feet isn't low, right?

Er, no.  I mean, 14'0" isn't spectacularly low, but definitely not spectacularly high either.  The Skagit River bridge in Washington that was hit by a truck and collapsed was 14'6" where it was struck, but wasn't signed.  The point is that the sign is old.  Old as balls.

except for the shithat font...

...and that it's missing the second tick after the inches.

[US71]

Heck yes!