https://github.com/TravelMapping/HighwayData/pull/5661https://github.com/TravelMapping/HighwayData/pull/5662 (Updates table item)
File edited to extend CraRimDr west to NamPaioTr (at closed Jaggar Museum site); slightly move VisCen point to Kilaeua Visitor Center (near east end of segment added to HB); add LavaTubeTr point to replace hidden shaping point; and insert new shaping point, to keep CraRimDr route trace separate from HI 11's.
BTW, most of the original Crater Rim Dr. has not been reopened, including the part that collapsed into the south side of the Halemaumau Crater, which would need to be realigned if the loop were to be completely reopened.
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Re: discussion of confusing Hawaii route signage, there are very few county routes on Oahu with signed route numbers. All of them are remnant signs, or contractor errors, since Honolulu County long ago stopped numbering county routes (except perhaps internally, such as for GIS purposes).
Maui island (but not the rest of Maui County) has some county routes with route number signage unlike state route markers. The variants range from clever to ugly, though most of the nonstandard signage has been disappearing lately (thankfully including the
fugly bloated versions of the standard state markers).
The usual similarity of state and county route markers in Hawaii is a carryover from the unified route numbering system adopted pre-statehood, which continued until 1968 when Hawaii DOT created separate state and county route networks.