Signage on I-93 approaching Exit 20. Notice in the background of the third picture that Exit 20 is signed for MA 1A - this makes more sense than going way up to the Callahan Tunnel. And yes, that's button copy in the second photo.


Eventually, the frontage road comes down and the South Station exit will leave further up the I-90 EB ramp and come out at the beginning of the Surface Artery. Note the uneven split, as well as the low clearance to I-90 EB - WB traffic has a new high-speed connection and is clearly favored.


This is Exit 25 off the mainline I-90, but since the NB-EB ramp hasn't merged in yet, it has its own split. The LANE DROP sign doesn't make as much sense as EXIT ONLY would.


Coming WB from the surface at I-90's Exit 25, you face the same problem in that the WB-NB ramp has already left the mainline, so the onramp splits for you.


Back on the mainline, south of the bulk of Exit 20, getting advance warning that there are only two Dig exits now. The Exit 23 destinations are Aquarium and Quincy Market.


The progression of signs up and out the exit. No street names, just destinations, as the MUTCD now hates street names for some reason. On the right is an upside-down traffic signal sign, just like one on Charles St. (follow Exit 26 link at bottom). I have to believe it's the same contractor.


As you can see, there's a ton of signage in the tunnel - and this is missing another sign that tells you to keep going for US 1. Finally, mainline signage seems to acknowledge that there are three routes following it, not just one.


All on Exit 26. Finally, the Leverett Circle is recognized from Exit 26! It's not just "Cambridge" anymore! Of course, the fact that traffic to I-93 is no longer above traffic leaving 93 helps in that signs can be more than one line now. Also note impeccable signage of both routes.


Back above ground. Concord's a bit far, considering that there are larger cities between Boston and there.


The last of the new Dig signs.

Into the SB lanes
Up Exit 20 to Kneeland St.
To Big Dig construction
Northward from Boston via I-93
Northward via MA 3
Northward via US 1
Back to US 1 main page
Back to MA 3 main page
Back to I-93 main page

Exit 18 to Massachusetts Avenue
Exit 20 to I-90
Exit 24 to MA 1A
Exit 28 to MA 99
Exit 29 to MA 28
The JFK Expressway and Central Artery (I-93/US 1/MA 3) on Steve Anderson's bostonroads.com
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