Project Overview

Alternatives Analysis

The project scoping phase is complete and we are now in the alternatives analysis phase.

Based on input received from the public, the project Task Force, and government agencies during the scoping phase, HDOT has developed three realignment alternatives:

• Minor realignment. Shift the highway roughly 60 feet mauka and elevate it. This alternative would require a new bridge at Laniākea Beach and shoreline revetments at Laniākea Beach and possibly Chun’s Reef Beach.
• Moderate realignment. Move the highway roughly 250 feet mauka and provide new access/connector roads as necessary. This alternative would require two new bridges and the bulk of the city-owned parcels would be makai of the highway.
• Most realignment. Locate the highway on the existing cane haul road to the degree possible and provide new access/connector roads as necessary. This alternative would require two new bridges and avoid the city-owned parcels more than the other alternatives.

A fourth alternative, the Quinlan realignment, has also been considered and is illustrated on the map. However, HDOT does not believe the Quinlan realignment sufficiently addresses the project’s purpose and need and has some roadway geometry shortcomings.

If you have any input related to the above, please submit a comment. Useful input includes (a) which alternative you would prefer and why; and (b) possible adjustments to the alternatives to make them more attractive.