HONG KONG — It was meant to be a “people’s bridge” — a catalyst for China’s efforts to draw Hong Kong and Macau closer to the mainland.

But for the residents of the quiet Hong Kong suburb of Tung Chung, the initial fanfare following the opening of the world’s longest sea bridge last month has quickly given way to frustration. It’s an early sign that it will take more than a 34-mile megastructure to overcome the resentment that is festering between Hong Kong residents and mainland Chinese.

Nearly a million mainland tourists have crossed the new bridge into Hong Kong in the month since it opened. Most of these tourists have then poured out of buses in Tung Chung, a mostly residential town close to the port with a population of about 45,000, for a quick shopping stop before returning home.

The sudden influx of mainland Chinese has sparked a litany of complaints among Tung Chung’s residents.