The State of Hawaii's Harbors Division within the State's Department of Transportation manages Nawiliwili Harbor. The Harbors Division plans, designs, builds, operates, and maintains State water transportation facilities, including Nawiliwili Harbor. It coordinates with other government agencies to assure the efficient and effective operation of Hawaii's commercial harbors. At present, the Harbors Division manages ten commercial harbors. Located at the mouth of the Hule'ia Stream, Nawiliwili Harbor is the port-of-call for cruise ships visiting Kauai island.
The State of Hawaii's Harbors Division owns and operates Nawiliwili Harbor Piers 1 and 2. These piers receive and ship containerized and conventional general cargo and automobiles. They receive petroleum products, bulk fertilizers, and cement and ship molasses and bulk raw sugar. Passengers board and deboard cruise ships at these Nawiliwili Harbor piers. Piers 1 and 2 have berthing space of 392 meters (1285 feet) with alongside depth of almost 11 meters (35 feet) MLLW.
The Matson Navigation Company has about 15 acres of paved storage with 60 refrigerated container positions at the rear of Nawiliwili Harbor Piers 1 and 2. The Hawaiian Cement Corporation operates two pipelines that connect the wharf to a two-thousand ton bulk cement storage tank. The Kauai Sugar Storage Corporation also has a pipeline from the wharf to two molasses storage tanks with total capacity for 80 thousand tons. Kauai Petroleum Company operates three pipelines from the Nawiliwili Harbor Piers 1 and 2 to four storage tanks with capacity for 24.9 thousand barrels, and Shell Oil Company has two pipelines to six storage tanks with capacity for 19.4 thousand barrels.
The State's Harbors Division also owns and operates the Nawiliwili Harbor Pier 3. Pier 3 receives and ships conventional and containerized general cargo and automobiles. Pier 3 receives liquefied petroleum gas, dry bulk fertilizer, and lumber. The Pier is also used to board passengers and to moor towboats. The Nawiliwili Harbor Pier 3 has berthing space of 191 meters (627 feet) with alongside depth of almost 11 meters (35 feet) MLLW.
Young Brothers Limited has a paved storage area of about 15 acres at the rear of Nawiliwili Harbor Pier 3. Citizens Utilities Services, doing business as The Gas Company, has two pipelines connecting the pier to twelve storage tanks with total capacity for about 10.6-thousand barrels of liquefied petroleum gas.
The United States Coast Guard operates the US government-owned Nawiliwili Harbor Station Wharf to moor Coast Guard vessels. The Nawiliwili Harbor Station Wharf has berthing space of 18 meters (60 feet) with alongside depth of 3.7 meters (12 feet) MLLW.