Honolulu Harbor Pier 2 is an operational pier primarily serving cruise ships that come into Honolulu. The scope of work for this project, Substructure and Waterline Repairs at Pier 2, Honolulu Harbor, consisted of removal and disposal of hazardous materials, repairing substructure spalls, installing an epoxy coating system, removing an existing waterline (including valves, hanger…
The Sand Island Wastewater Treatment Plant (SIWWTP) is Hawaii’s most extensive treatment plant, servicing the metro and greater Honolulu area. Hawaiian Dredging designed and constructed a new ultraviolet (UV) disinfection system, including a new control system to handle all existing and future UV disinfection processes. The new UV system will increase disinfection capacity by an…
Completed in April 2024, this 6,750 square-foot Waterfront project for Island Energy Services, a locally managed company dedicated to providing fuel delivery to Oahu, Maui, Hawaii Island, and Kauai. The project included refurbishing existing bollards and reinstalling four bollards, as well as removing and replacing twenty-three fenders. Additionally, bulkhead wall repairs were conducted using divers…
Auahi Street Promenade- Hawaiian Dredging installed underground utility, along with intersection improvements at Auahi Street and Kamakee Street, with sidewalk and landscaping enhancements fronting the Ward Entertainment Center and Kōʻula at Ward Village.
Hawaiian Dredging resurfaced approximately five miles of the two inbound lanes of Kuihelani Highway with four-inch thick Ultra-Thin White Topping (UTW) concrete pavement. Developing a 3D model to determine the new grades and cross slopes, Hawaiian Dredging was able to integrate the model into the project to control the schedule and shorten the overall construction…
The Umauma Bridge, was originally constructed in 1911 to support railroad tracks over Umauma Stream. Hawaiian Dredging was selected to perform a full rehabilitation of the 100-year-old bridge. Perched 100 feet above the Umauma Stream, the rehabilitation involved construction of concrete towers to be placed within the existing steel support structures, widening and replacement of…
Fort Weaver Road is one of the most heavily traveled highways in the State. It was badly in need of widening with over 40,000 cars per day using a four lane road connecting Ewa with the H-1 Freeway. This project added two lanes to the existing four, giving the major thoroughfare three lanes in each…
The Interstate Route H-1 Kapolei Interchange is located on both the westbound and eastbound sides of the H-1 Freeway between the Makakilo Interchange and the Palailai Interchange (the off-ramp to the Campbell Industrial Park). This project widened lanes in both direction of the H-1 Freeway with a new 12-foot travel lane and a 10-foot shoulder…
After serving Hana residents and tourists for nearly a century, the original Papahawahawa Bridge was deemed unsafe and beyond repair. The new bridge design overcame the unique challenges of construction on this world famous rural road, known as the Hana Highway, while answering the stringent demands of historic preservation. The Papahawahawa Bridge exemplifies reverence for…
The Navy’s desire to bridge the nearly 1.5 kilometer channel between the Pearl Harbor shore and Ford Island was met by a design based on a traditional span bridge with intermediate support foundations and a movable floating section that when pulled under the main structure would create an opening through which ships could navigate. The…
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