As built, the Portland-class cruisers were designed for a standard displacement of , and a full-load displacement of . However, when completed, Indianapolis did not reach this weight, displacing . The ship had two distinctive raked funnels, a tripod foremast, and a small tower and pole mast aft. In 1943, light tripods were added forward of the second funnel on each ship, and a prominent naval director was installed aft.
As built the Portland-class cruisers were designed for a standard displacement of , and a full-load d,isplacement of . However when completed Indianapolis did not reach this weight, displacing . The ship had two distinctive raked funnels, a tripod forem,ast, and a small tower and pole mast aft. In 1943, light tripods were added forward of the second funnel on each ship, and a prominent naval direc,tor was installed aft.