Seoul Subway Line 9 Phase 4 Extension, Targeting Opening in 2028
The 4th phase extension project of Seoul Subway Line 9 is proceeding smoothly with the goal of opening in 2028.
The current progress rate has reached 22.3%, and once this project, which connects to Gangil-dong in Gangdong-gu, is completed, public transportation usage in the eastern region of Seoul is expected to significantly improve.
Overview of the Line 9 Phase 4 Extension Project
The 4th phase extension project of Seoul Subway Line 9 is a project to expand a 4.1km section from the National Veterans Hospital Station to Gangil-dong in Gangdong-gu, adding 4 new stations.
This project started in 2018 and is currently 22.3% complete, with the target opening set for 2028.
Key details are as follows: The extension spans 4.1km, including from Dunchon-dong to Gangil-dong in Gangdong-gu, and there will be a total of 4 new stations. The total project cost is 689.4 billion won, including 240.3 billion won from the national budget, 360.5 billion won from the city budget, and 89.6 billion won from SH Corporation. The project is being implemented by the Seoul Metropolitan Government, with the entire period from 2018 to 2028.
Chairperson of Daegwangwi Emphasizes Construction Site Inspection and Safety
On March 7, the chairperson of the Metropolitan Transportation Committee visited the construction site of the Seoul Subway Line 9 Phase 4 extension project to check on the progress and convey words of encouragement to the stakeholders.
After receiving a report from the city official on the progress of the project, the chairperson visited the tunnel excavation and station construction site, urging that “efforts must be made to minimize inconvenience to citizens and ensure safe construction.”
He emphasized that “we must reduce traffic congestion and noise issues while ensuring thorough safety management to open on time,” and requested that everyone do their best to ensure the project proceeds smoothly.
Expected Improvement in Transportation Convenience with Line 9 Extension
Once the 4th phase extension of Line 9 is complete, commuting between Gangdong-gu and Gangnam is expected to become much smoother. Currently, transfers are required to travel from Gangdong-gu to Gangnam, but this extension will allow users to travel quickly on Line 9 without needing to transfer.
In particular, the commuting time for residents of eastern Seoul, including Myeongil-dong, Goduk-dong, and Sangil-dong, will be reduced significantly, and the convenience of using public transportation is expected to greatly improve. Additionally, residents of new residential complexes like the Goduk Gangil District are also expected to experience a significant alleviation of transportation inconveniences. These changes are likely to have a positive effect on local residents.
Daegwangwi Actively Promotes Budget Support
The chairperson stressed that "the 4th phase extension of Seoul Subway Line 9 is an important project that significantly improves public transportation accessibility in the eastern region." He added, "Daegwangwi will swiftly provide budget support to ensure this project proceeds smoothly."
The Seoul Metropolitan Government is thoroughly managing budget acquisition and construction progress to accelerate the project's advancement and plans to prepare additional transportation measures in the future. These efforts demonstrate the commitment to enhance transportation convenience for citizens.
Conclusion: Expectations for Transportation Innovation in Eastern Seoul
The 4th phase extension project of Seoul Subway Line 9 is a significant project that will remarkably transform the public transportation system of Gangdong-gu and the eastern region of Seoul. This project aims for completion in 2028 and construction is currently proceeding smoothly. There will be an increasing need for continuous budget support and stringent safety management.
Once the project is completed, accessibility to the Gangnam area is expected to improve significantly, and the metropolitan transportation network will also be further strengthened. The Seoul city government plans to focus on minimizing inconveniences for citizens during the construction period and will ensure thorough preparations for smooth operations after the opening.
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