I Feel like NC just wanted to give an excuse to use another 2di Highway, when I-87 is done isn't it going to be below 100 miles? i feel like it should be one of the requirements that a highway has to be atleast 100 or 150 Miles to be a 2di highway, like I-83/I-19/I-97/I-2 Etc, Etc
180 miles between I-40 at Raleigh to the Virginia state line, 197 miles total if extended in Virginia to I-64.
A 2di designation is appropriate for that length, and would be going between two states carrying long-distance traffic.
idk why, i think i'm just being biased to the I-87 in NY due to always living near it and always travelling on it, but i just don't get it though
As far as the number's concerned, NCDOT's original rationale was to not conflict with nearby state highway numbers. The available even numbers without US route conflicts in either state, 42, 46, 54, and 56, were considered too close to the corridor -- and since most NC addresses on rural routes reference the highway number -- and the state didn't want to require address changes to a new state route number (they're supposedly a non-duplicating state, with a few hugely visible exceptions like NC 73 and US 74!!!!!), they chose a number (89) that at least wouldn't be intersected by the corridor (being in the western part of the state). AASHTO's SCOURN rejected the argument about state conflict, but did accept the odd-numbered argument that the corridor essentially duplicated I-85's trajectory but farther east (even though the E-W distance is vastly greater than that of N-S). But they substituted I-87 for some BS "historical" reason; also because the extant NY I-87 is considerably closer to the N-S longitudinal location of the NC/VA corridor than I-89. Like I said earlier, a misinformed and convoluted rationale -- if they rejected the state-conflict argument, they should have selected an unused even number from the available pool cited above. But it was a rainy Des Moines week; so they either elected to "rubber-stamp" the state's arguments with modifications just to get their collective asses home or they simply took advantage of being in a facility with a bar (cash or open) with dubious results. Either way they could have done a lot better!
Growing up in a rural NC county beside Raleigh/Wake, every road had to be given a new, regular road name for 911 and emergency services to be able to locate those calling for help. So addresses that used to be " Joe Shmoe, Route 2, Box 58, Louisburg.... had to become Joe Schmoe, 3122 Ronald Tharrington Road, Louisburg, NC....
That was a big shift, but I too hate repeating interstate numbers, and I-87 could be another number or the state route numbers should have changed.
Our interstates unite the states tangibly more than anything else, and should unified without exceptions to the numbering.