Hawaii May Lose Beaches to Save Condos
Hawaii lawmakers are considering legislation allowing more shoreline hardening to protect private beachfront property, which could result in permanent beach loss in erosion hotspots. The policy debate threatens public access to some of Hawaii's most popular coastlines as officials weigh private property protection against beach conservation.
- Several bills, including HB 1846, HB 2205, and SB 2402, are under consideration in the 2026 legislative session. These proposals would move Hawaii from a near-total ban on new private shoreline hardening to a policy that allows for regulated and minimized construction of seawalls and other structures in certain conditions. - Sea levels around Hawaii have risen by as much as 10 inches since 1950, and the rate is accelerating. Projections indicate a likely rise of another 8 inches by 2050 and up to 3.5 feet by 2100, which is expected to worsen coastal erosion. - On Maui, shoreline hardening has already led to the loss of approximately 5 miles of beaches. For instance, a seawall built to protect Honoapiʻilani Highway resulted in the disappearance of the sandy beach in front of it during high tide. - In West Maui's Kahana Bay, nine condominium complexes and a residential parcel have formed the Kahana Bay Steering Committee to address chronic erosion that has significantly narrowed the beach. Residents like Spencer Schmerling describe the situation as a "regional crisis," with sand loss and seawall damage posing increasing safety risks. - Roughly 29% of Oahu's beaches have been lost due to the construction of seawalls, which cause wave energy to scour sand from the shoreline. On Kauai, 72% of beaches are experiencing chronic erosion. - For years, Hawaii has operated under a general prohibition on new shoreline armoring, strengthened by Act 16 in 2020, which is considered a landmark piece of coastal protection legislation. The current legislative proposals are seen by opponents as a step that would weaken these protections. - The state's official policy is guided by the public trust doctrine, which holds that the shoreline and beaches are public property to be preserved for public use and access. Hardening the shoreline can lead to the permanent loss of these public trust assets. - Alternatives to seawalls, such as beach nourishment and managed retreat, are part of the ongoing debate. In one instance, Kauai County opted for beach maintenance activities instead of extending a seawall after a report indicated it would accelerate erosion.
