New Downtown M3 Bypass
For many years, the M3 ran from the southwest up into downtown, turned into a surface street (Mariners' Avenue), went around the waterfront, and finally resumed its course north as a motorway again. This gap in the motorway system has finally been closed via a new stretch constructed as a double-decker dual carriageway. See the inset in the image below for a map of the general area. New construction is highlighted in red.
Here is the exit at Broadway. We had to raze a swath of land one full city block in width to construct the motorway and few people wanted to build directly adjacent to it. So, much of this strip has been converted to open spaces and parkland. This also helps dampen the sound.
Here is M3 at Emporia.
Below we have the northern end of the project. The old portion (coming from the left) is no longer signed as the M3 and is now simply just Mariner's Parkway. The new portion begins as a double decker in the upper right.
Lastly, we have the southern terminus. This was one of the more complicated interchanges I have made.
PS: About the lack of signs, the State DOT workers were on their coffee break when they were being passed out 
. Rest assured, they are being installed as we speak 
.
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