Add another 2-lane* road in the state with a 55-mph speed limit: the entirety of the US 206 Bypass. The count is now up to 6 (also parts of 54, 70, 72, 539, and 33 southeast of Freehold*). It was formerly 45 south of Hillsborough Road and 50 on the original part and the 4-lane part north of CR 514.
*Ok, they're part of a divided super 2
Still not entirely sure why NJDOT didn't just make the whole bypass 4 lanes, but what do I know? Not the first time NJDOT's taken this tact. They are making the section between Brooks Blvd and the bypass 4 lanes slowly but surely, and it would be great if they could make it four lanes all the way to 295, but I know that's probably never going to happen south of Montgomery.
US 206 also needs to be four lanes as well from I-287 at Bedminster to I-80 at Roxbury.
Then you have US 9 that needs widening in both Lakewood and Toms River Townships as well as from Beachwood to Manahawkin.
NJ 23 could use a freeway alignment north of Stockholm, as traffic there warrants it and the existing NJ 23 is too winding for a typical widening.
It’s just not happening. The Star Ledger used to write articles in the eighties about how far behind the state is with projects. If FDOT ran NJDOT US 206 would be four lanes from Somerville to Princeton and a bypass of Princeton to, with a realigned roadway to I-295. US 206 south of the Brunswick Circle would be concurrent with US 1, and NJ 129 would be US 206 into NJ 129 and I-295. However, NJ, for whatever reason, does things another way. FDOT won’t let municipal agencies maintain state or US routes. Oh yes, Hillsborough Bypass would be built as four lanes.