We're probably looking at
Q1 2024 for I-11 north to NV 157. I can confirm that, as of November, signs have been installed along I-15 SB reflecting I-11's extension. I-515/US 95 itself had no reference to the extension, while CC 215 had covered I-11 shields. Newspaper report:
https://www.reviewjournal.com/news/news-columns/road-warrior/i-11-footprint-to-grow-in-southern-nevada-2967497/ IMO, at least one of four things needs to occur to make the change here, none of which has happened yet:
- NDOT deletes IR 515 and replaces with IR 11 on their GIS. There is currently no reference to IR 11/ I-11 north of I-215 in any internal databases apart from ITS infrastructure
- NDOT shows IR 11 as extending north of I-215 in the route log
- I-11 signs start showing up en masse north/west of I-15
- NDOT puts out a press release saying the change occurred
Still no word on CC 215, but construction is substantially complete. AFAIK, NDOT has not yet submitted an application to extend I-215. Given how long it took for the southeast leg to be added to the state highway system, it is possible that other relinquishments may not occur for years.
It probably makes the most sense to keep I-515 as an alternate name for I-11