Unnamed Hawaiian Road #5

Unnamed Hawaiian Road #5 in Hawaii is graded at 70 corners, about 31.6 for every mile you drive. 33 of them are genuinely tight (47% of the road), and the sharpest turns in at a 10 m radius. There is no real rest on it — the longest straight is only 50 m before the next corner.

Graded corners

70

Tight (1–2)

33

Tightest radius

10 m

Corners per mile

31.6

Corners are graded from the route’s own geometry on the rally 1–6 scale, where 1 is a hairpin. Road & Rally calls them out as you drive.