I never knew there was a way to get to 1485 from Roman Forest????
@Kacey82 : Yep, as the others confirmed! Even with the construction complete, the backup at the stop signs where 1485 E becomes 99 access road is still often such that the extra few miles of Roman Forest detour is still faster for some destinations during moderate or heavier traffic times. Here's what it looks like - the time/distance shown here is from 1314/59 intersection to Forest by 1485 (in its 99 feeder guise). This route's better for heading southbound - daylight is recommended for first go at heading back to 59 this way.
You can also get to Willaby/1485 this way, tho I'd recommend going south to Coach Light to work your way east for that rather than the more direct Cambridge- better/more straightforward road.