Costing £120,000 the pier was constructed[when?]inreinforced concrete, reaching a length of 400 metres (1,300 ft) and varying between 30 metres (100 ft) in width at the shoreward end and 12 metres (40 ft) at the seaward end.
When built, the pier was divided into two halves. The southern side of the deck was reserved for commercial use, and was fitted out to load and unload cargo from harbour ships, including electric cranes, electrically operated capstans and two railway tracks. The pier was capable of handling one passenger vessel, three cargo vessels and two pleasure steamers simultaneously.
The northern side, fenced off from the industrial section, was a promenade area. This included shelters, a diving stage, changing rooms, and at night the whole promenade area would be illuminated, with views across Weymouth Bay and Nothe Fort.
1840: Considerable change was made to the port area when a pile-pier, filled with a mixture of Portland stone and shingle concrete, was built on the northern edge of the harbour;
1860 Weymouth Pier was largely rebuilt in timber and at the same time, extended to a length of 273 metres (900 ft);
1877: A cargo stage was added;
1889: A landing stage and baggage handling hall were built;
2007–2011: Redevelopment of the entire peninsula was planned for the 2012 Olympic Games but apart from an observation tower (known as Jurassic Skyline) this did not take place.