Sweden's 2026-2037 Infrastructure Plan Includes Stockholm County Road and Rail Projects

Sweden's national infrastructure plan for 2026-2037 sets a total investment of SEK 1,171 billion, with equal shares allocated to maintenance and new development. The Swedish government has approved 12 major projects valued at SEK 50 billion, among them Tvärförbindelse Södertörn in Stockholm County and the E4/E20 Hallunda-Vårby upgrade. Construction on these projects is scheduled to begin between 2026 and 2028.

Stockholm Area Priorities

Stockholm-specific elements include the cross-connection at Södertörn, added rail capacity toward Uppsala, and the E4 Stockholm Bypass motorway that joins northern and southern parts of the city. These measures form part of a broader effort to address road and rail conditions across the county. The plan also reallocates SEK 20 billion to 27 high-social-benefit projects that include noise reduction work on Lommabanan and safety improvements at Knivsta and Tomteboda.

The government states the plan will eliminate all neglected road maintenance by 2037 and resolve railway infrastructure debt by 2050. Road maintenance funding rises 53 percent compared with the previous plan. These targets apply directly to routes used by residents for work, school and other regular trips within Stockholm County.

Effects on Local Travel

Residents in Stockholm County stand to experience changes in road surfaces and rail services as the listed projects advance. The new Södertörn link and the Hallunda-Vårby upgrade target sections of the network that carry local traffic. Increased rail capacity to Uppsala is intended to serve commuters who travel that corridor. The E4 Stockholm Bypass is designed to connect the northern and southern sides of the city without passing through central areas.

Because the plan balances new construction with maintenance, ongoing upkeep of existing roads and tracks receives the same level of resources as expansion. This approach covers routes already in daily use by households across the county. The government projects that completing the maintenance goals will remove the backlog of neglected roads by 2037.

Next steps involve the start of construction on the approved projects from 2026 onward, with funding drawn from the overall SEK 1,171 billion envelope. The listed Stockholm County elements will proceed alongside the 27 reallocated high-social-benefit initiatives. Implementation remains subject to the timelines set in the national plan.