Ala Wai Canal dredging update

The State of Hawaii’s Department of Land and Natural Resources has just released the latest update on the Ala Wai Canal dredging work.

In order to ensure timely completion of dredging of the Ala Wai Canal, Hawai‘i Harbors Constructors JV will be updating their work hours, beginning on October 16, 2020.

Changing the working hours will allow the project to stay on schedule, as well as enhance productivity of dredging operations.

The $21 million dredging and canal improvement project started October 2019.

The project involves dredging of accumulated silt and sediments from the canal. Also, repair work on two sections of the canal’s wall is also included. 

The dredging depths varies between -12.0’ and -6.0’ mean lower low water. The estimated total volume of dredging work and material is 186,000 cubic yards.

This dredged material is being disposed of at an Environment Protection Agency (EPA) South Oahu Ocean Dredged Material Disposal Site.  

Further, the long-term benefits of this project include maintaining the ability of the canal to efficiently convey stormwater flows to the ocean, in order to reduce the risk of flooding.

Also, it will improve the aesthetics and use of the canal for recreational users. The work is scheduled to be completed in early 2021.