The Maine Port Authority (MPA) manages the Port of Searsport. The MPA is responsible for stimulating commerce by developing rail and marine facilities and by promoting the intermodal movement of cargo and people within Maine. The MPA's Board of Commissioners is headed a representative of the State's Department of Transportation. Other commissioners represent trade and commercial and organizations.
The Port of Searsport is one of five official cargo ports in the State of Maine, and it is the second largest deep-water port. Located at the head of Penobscot Bay, the recently-reconstructed Port of Searsport ships imports and exports and distributes goods throughout the United States and Canadian heartlands via its on-site rail yard. With a tidal range of ten feet, the approach channel and turning basin in the Port of Searsport offer a depth of 10.7 meters (35 feet) MLW.
The Mack Point Marine Intermodal Cargo Terminal is the main cargo-handling facility in the Port of Searsport. The Mack Point terminal has a dry cargo pier with a 1.3-acre (56 thousand square feet) working surface. The dry cargo pier in the Port of Searsport has two berths, each of them almost 244 meters (800 feet) long with alongside depths of 12.2 and 9.8 meters (40 and 32 feet) MLW.
The Liquid Cargo Pier in the Port of Searsport's Mack Point terminal offers a multi-purpose hose platform and two berths. Berth #1 is 213.4 meters (700 feet) long with alongside depth of 11.3 meters (37 feet). Berth #2 is 152.4 meters (500 feet) long with alongside depth of 7.6 meters (25 feet).
The Mack Point Marine Intermodal Cargo Terminal in the Port of Searsport offers ample storage and development. Total tank capacity is 1.6 million US barrels for liquid cargoes. An 8.4-thousand square meter (90 thousand square foot) warehouse is currently being completed, and there are five paved storage pads available. This Port of Searsport terminal has loading racks for trucks and rail. It also has over 70 acres of land available for development. The Port of Searsport Mack Point terminal has more than 1.9 thousand meters (6500 feet) of on-site rail siding that is connected with the Canadian Pacific (CP) railway.
Cargo handling in the Port of Searsport's Mack Point terminal is provided by Sprague Energy. Sprague Energy also operates the Port of Searsport's tank farm. Rail service is provided in the Port of Searsport by the Montreal, Maine & Atlantic Railway.
The Port of Searsport's Town Pier is used to moor small vessels. It is equipped with a 7.6-meter (25-foot) wide paved boat launch ramp at the rear of the pier. The pier offers 6.1-meter (20-foot), 27.4-meter (90-foot), and 91.4-meter (300-foot) berthing spaces with alongside depth of 1.2 meters (4 feet).
The Sprague Energy Corporation owns and operates the Port of Searsport Liquid-Bulk Pier. The pier is used to ship and receive petroleum products, logs, caustic soda, and dry bulk commodities that include coke, coal, salt, iron oxide, gypsum rock, cement clinker, and silica sand. Bunkering and fueling of vessels is also available at this Port of Searsport pier.
The Liquid-Bulk Pier in the Port of Searsport has a 16-inch pipeline for fuel oil that connects the pier to three steel storage tanks with total capacity for 330 thousand US barrels. Two 10-inch pipelines connect to two caustic soda storage tanks with total capacity for 3.3 million gallons. At the rear of the pier are open storage areas in the Port of Searsport with capacity for 235 thousand tons of dry bulk commodities and about 60 thousand tons of coal.
This Port of Searsport pier has three berthing areas. One is 12.2 meters (40 feet) long with alongside depth of 9.8 meters (32 feet). The second is 30.5 meters (100 feet) long with alongside depths of 4.3 and 4.6 meters (14 and 15 feet). The largest is 190.5 meters (625 feet) long with alongside depth of 11 meters (36 feet).
The State of Maine owns the Port of Searsport Dry Bulk Pier. Irving Oil Corporation has three pipelines extending from the pier to thirteen steel storage tanks with capacity for 1.3 million US barrels of product. The Defense Energy Supply Command has five pipelines connecting to eight steel storage tanks with total capacity for 1.5 million US barrels.
In the early 2000s, the Dry Bulk Pier in the Port of Searsport was reconstructed and dedicated for dry bulk products. It is operated by Sprague Energy Corporation and Irving Oil Corporation. Located about 2.4 kilometers (1.5 miles) east of the Port of Searsport's Mack Point Marine Intermodal Cargo Terminal on Penobscot Bay, the Dry Bulk Pier has three berthing areas, all with alongside depth of 9.8 meters (32 feet). Two of the berths are 213.4 meters (700 feet) long, and one is 30.5 meters (100 feet) long.
While not always in use, the GAC Chemical Corporation owns the Port of Searsport Plant Wharf. The wharf is served by rail tracks with 12-car capacity that connect with the Bangor & Aroostook Railroad. A submarine pipeline connects this Port of Searsport wharf to four storage tanks with total capacity for 11 thousand tons of sulfuric acid.