Australian marine projects company Hall Contracting has completed a 1.81-kilometre seawall on Ebeye in the Republic of the Marshall Islands, providing added protection against coastal erosion and inundation.
The project also delivered a 1.81-kilometre footpath along the back of the structure.
Hall said in its completion update that approximately 84,000 tons of armor rock and fill were transported to the remote island, together with equipment and construction supplies.
The seawall is intended to protect homes and critical road and utility infrastructure on the densely populated island. The associated works included an illuminated footpath and seven outfalls for road drainage built into the revetment.
The RMI Ministry of Public Works, Infrastructure and Utilities engaged Hall to construct the seawall. Haskoning served as lead designer.
The project formed part of the Pacific Resilience Program – Phase II. Its cost was reported at US$52.64 million.
Haskoning said the structure was designed to protect against sea level rise of up to 0.5 metres. Severe weather flooding can still occur because Ebeye has low topography and limited stormwater drainage.
Hall began mobilising for the project in early 2025 after being selected for the contract in 2024. Pre-construction estimates called for about 65,000 tonnes of armor rock, while the final 84,000-ton figure includes both armor rock and fill.