There’s nothing quite like driving from Honolulu to the east side of Oʻahu—especially if you’re using the Interstate H-3. Literally cutting through the Koʻolau Range using a series of tunnels and positioning drivers high above the treeline of Haʻikū Valley, the route reaches its crescendo as commuters come out of the tunnel’s eastern exit and are presented with a jaw-dropping view of Kāneʻohe Bay and Oʻahu’s windward side. Never has keeping your eyes on the road been a harder task. But it’s not like the island was made with an island-crossing highway in mind. Before its opening on Dec. 12, 1997, the Interstate H-3 was the source of decades of planning, $1.3 billion in funds and an immense amount of strife and controversy among the Native Hawaiian community. This is how the Interstate H-3 was made.