Balanced Development Portal

Northeast Region Infrastructure Expansion

Northeast Region Infrastructure Expansion

Development Background

Emerged need to establish efficient east-west connection system due to expected increase in floating population and traffic volume according to Changdong-Sanggye urban regeneration activation plan

Vision and Goals

Establishing efficient east-west connection system by constructing Dongbu Expressway underground tunnel and promoting user convenience and regional economic revitalization by improving accessibility to Jungnangcheon Stream

Project Overview

사업개요 - 위치,규모,사업기간
Location Dongbu Expressway (Changdong Bridge~Sanggye Bridge section)
Scale 3-4 lanes, length 1,700m
(Underground tunnel structure: 1,356m, Top park 800m)
Project Period '16. 3. ~ '27. 1.

Implementation Timeline

Conducted northeast region development future traffic demand analysis and road basic concept service ’14. 12.~’15. 10.
Established basic plan for Changdong-Sanggye east-west connection road
  • Established basic plan for underground tunnel and three connecting bridges
’16. 3.~’17. 9.
Announced Changdong-Sanggye urban regeneration activation plan ’17. 3.
Completed basic design service for Eastern Arterial Road underground tunnel ’17. 12.~’18. 12.
Conducted feasibility study and various reviews for underground tunnel installation ’18. 12.~’19. 11.
Announced construction bid ’20. 3. 11.
Submitted bid and technical proposal/Held design evaluation meeting
  • Evaluation result: SK ecoplant Consortium
’20. 7. 10. / 31.
Initiated detailed design, commenced priority construction (relocation of obstructing facilities, etc.) ’20. 8. 14. / 28.
Created and announced implementation plan and topographical map (Seoul Metropolitan City Public Notice No. 2021-338) ’21. 7. 8.

Changdong-Sanggye East-West Connection Bridge

Development Background

Emerged need to establish efficient east-west connection system due to expected increase in floating population and traffic volume according to Changdong-Sanggye urban regeneration activation plan

Vision and Goals

Establishing efficient east-west connection system by constructing Changdong-Sanggye east-west connection bridge and promoting cultural arts sharing and industrial exchange through securing access roads to Arena and other facilities

Project Overview

사업개요 - 위치,규모,사업기간
Location Between 1-11 Changdong, Dobong-gu ~ 820 Sanggye-dong, Nowon-gu
Scale Construction of 2 bridge
  • Pedestrian-vehicle bridge (width 32m, length 118m)

  • Pedestrian bridge (width 10m, length 110.5m)

  • Project Period ’16. 3. ~ ’26. 6.
    • Pedestrian-vehicle bridge: May 2026 / Pedestrian bridge: April 2025

    Implementation Timeline

    Established basic plan (concept) for Changdong-Sanggye east-west connection road service ’16. 3.~'17. 9.
    Planned connection bridge construction design competition
    • Separate ordering of 2019 design competition and basic design (Northeast Region Project Group), 2020 detailed design (City Basic)
    ’18. 8. 14.
    Announced design competition (International open competition, 60 days) ’19. 5. 2.
    Contracted basic and detailed design service ’19. 8. 14
    Completed basic design ’20. 7. 14.
    Transferred detailed design and construction implementation duties (→City Basic) ’20. 7. 15.
    Conducted detailed design and various reviews ’20. 8. 5. ~ 11.
    Contracted and commenced construction and construction project management service (City Basic) ’21. 3.~ 4.