Core Viewpoint - The construction of the Orange Isle Bridge in Changsha marked a significant transformation in the city's transportation infrastructure, ending the reliance on ferry services and facilitating better connectivity between the eastern and western banks of the Xiang River [2][12][14]. Historical Context - The Orange Isle Bridge, completed in 1972, was a response to the limited transportation options across the Xiang River, which previously relied heavily on ferries [2][7]. - Before the bridge, ferry services were inadequate, with over 2,000 vehicle trips and an average of 50,000 pedestrians daily, leading to significant congestion and delays [8][12]. Construction Details - The bridge was constructed with a budget of 20 million yuan, and the project was completed in just one year, showcasing the collective effort of over 800,000 volunteers from various sectors [8][10][11]. - The bridge's design included a large continuous multi-span double-arch structure, which was a significant engineering feat at the time [8][10]. Economic Impact - The Orange Isle Bridge played a crucial role in the economic development of Changsha, facilitating the movement of agricultural products and contributing to the growth of the local economy [14][15]. - The bridge's completion marked the beginning of a new era for Changsha, transitioning from a reliance on the "Five One Road Era" to the "Xiang River Era," with enhanced connectivity and development opportunities [15][16]. Current Status and Future Prospects - The Orange Isle Bridge remains one of the busiest crossings in Changsha, with peak hour traffic exceeding 6,000 vehicles, indicating a growing demand for transportation infrastructure [14]. - The ongoing development of additional bridges and transportation links is expected to further enhance connectivity and support the city's continued growth [14][15].