Under the rule of Sultan Omar Ali Saifuddin, the area was developed into a deepwater port to assist in the development of the country. Since 1973, Muara Port has undergone extensive improvements. These include extensions to the wharf, bringing its total length to 948 meters (including 250 meters dedicated container wharf and 87 metres aggregate wharf). The overall covered storage capacity is 16,950 square meters. The site also features long storage warehouses with a combined capacity of 16,630 square meters and open storage space of 5 hectares. Facilities for the dedicated container wharf cover an area of 92,034 square meters, including 8,034 square metres of covered areas.