MD 144

[Henry]

Seeing that MD 144 as shown on maps is not a continuous route, often taken over by US 40 (and even I-70) in places, a question has come to me: Was it ever a single route from Western MD to Baltimore?

[cpzilliacus]

Seeing that MD 144 as shown on maps is not a continuous route, often taken over by US 40 (and even I-70) in places, a question has come to me: Was it ever a single route from Western MD to Baltimore?

No.  Md. 144 is, with a few exceptions, old U.S. 40, and has never been contiguous. 

The excellent MDRoads site has a good (and I believe, accurate) discussion of 144 here.

Perhaps the biggest gap in 144 is between Hagerstown and Frederick, where the "old" U.S. 40 is now U.S. 40 Alternate.

[NE2]

That's nothing. http://www.openstreetmap.org/?relation=1714635

[agentsteel53]

That's nothing. http://www.openstreetmap.org/?relation=1714635

what is AR-159?  another collection of old alignments?  of US-65, in this case?

[NE2]

I don't think so - it's just AHTD being weird.

[Pilgrimway]

Maryland seems to like these patchwork routes.  MD7 from Baltimore to Elkton is the same way.