Interstate shields on mile markers

[KEVIN_224]

Connecticut has the 1/5 mile markers in two areas I'm aware of:

[1] I-95 from the New York state line in Greenwich until (at least?) Exit 48 for I-91 in New Haven.
[2] I-84 from the New York state line in Danbury until Waterbury, somewhere east of CT 8 and west of the Cheshire town line. Within the past 18 months, the interstate 84 shield was added to the mile markers from the New York state line east to the Housatonic River (Newtown/Southbury town line).

[myosh_tino]

...and why not stick some on exit ramps why we're at it?

The above photo reminded me about how call boxes on freeway-to-freeway ramps in the S.F. Bay Area are identified.

All call boxes in the region are identified by a county code, the route number and a mileage value based on the route's postmile where the box is installed.  When a call box is installed on a ramp, the mileage value gets a "T" suffix to indicate the box is on a ramp.  For example, this call box is SC-280-057T, the box is located on a ramp at postmile 5.7 on route 280 (I-280 in this case) in Santa Clara county.  In most cases there is a corresponding call box on the mainline with a number "SC-280-057".

[roadman]

Illinois State Toll Highway Authority:

I like how ISTHA uses actual fractions instead of decimals for the increment.  That, and the size difference between the number and the fraction, makes the signs easier to read at a glance.

[cpzilliacus]

Most mile markers on "free" highways around Maryland are at each mile only, normally no half-mile or tenth-mile markers.

But Maryland's toll highways and toll crossings usually do have mileposts every 1/10th of a mile, and do have shields in some cases.  Annoying exceptions are the I-95 and I-895 tunnels under Baltimore Harbor, which do not (but should) have mile markers posted.

Md. 200 has shields on every whole mile marker:

[stormwatch7721]

US71, cpzaillacus and kphorger, Nice milepost pics smiliar to WV's.

[swbrotha100]

I would love to see Arizona do this more. I've seen a couple on I-10 west of AZ 85. I think ADOT was testing a mile stretch of markers there.

[apjung]

Lake Pontchartrain Causeway Bridge now have full sized 1/10 mile marker signs while the I-10 Twin Span Bridge (a.k.a. Frank Davis "Naturally N'Awlins" Memorial Bridge) have them every 2/10 mile.
http://www.nola.com/traffic/index.ssf/2014/09/causeway_mile-market_project_t.html

[froggie]

(a.k.a. Frank Davis "Naturally N'Awlins" Memorial Bridge)

Slightly off-topic, but does anyone actually call it that down your way?

[SSOWorld]

Mexico highways use this as their method of identifying the highway in place of the methods the US and Canada uses.

[jdb1234]

I have yet to see any in Alabama, but I have seen them in Georgia.

[Thing 342]

They are quite common along I-64 in Virginia between Williamsburg and I-81. The portion between Richmond and Williamsburg also has these markers pointed in the opposite direction of travel with a shield for I-64 REV, presumably for when the counterflow lanes are used in the event of an evacuation.

[adventurernumber1]

Interstate 75 in Chattanooga, TN has these, which are very interesting.

As well as I-24.

[TheHighwayMan3561]

I believe Maine had shields on mile markers on I-95 and I-295 every 10th mile when I was there in 2005 and 2007.

Minnesota has them on I-94, I-35W, and the stub segment of MN 65 in downtown Minneapolis as these are the three routes with .10 mileposts in the state at the moment.

[PurdueBill]

Interstate 75 in Chattanooga, TN has these, which are very interesting.

As well as I-24.

Those look to be the "original" type that first started appearing in the 90s.  They are still the most common type in Indiana and Ohio, although the more wordy ones (that I personally am not a fan of) are appearing more as old ones are replaced.

[PHLBOS]

Thread bump:

While traveling to and from Hickory Run State Park yesterday, I noticed along stretches of the Northeast Extension (I-476), north of Landale that the PTC has been installing enhanced mile markers at every whole mile and large mile markers (w/no shield or direction) at every 0.1 mile.  These were installed along off the shoulders.  The older-style whole-mile markers, located on the median barrier, still remain.

So PTC is indeed moving towards enhanced mile markers (at least for its whole miles) along its roadway system.

Note: these markers do not include yellow TOLL banners a la the ICC.