A planned motorway west of Aalborg will release 480,380 tonnes of CO₂e during construction alone, according to a 2024 hearing submission from Rådet for Bæredygtig Trafik and NOAH to the Folketing’s Transport Committee, raising serious questions about the project’s climate credentials.
The Egholm motorway, one of Denmark’s most expensive standalone road projects at around 9 billion kroner, has been sold as essential congestion relief for North Jutland. According to the hearing submission filed as TRU bilag 108, the Road Directorate has failed to fully account for construction phase emissions in its socio-economic calculations. At Denmark’s official shadow price of 5,000 kroner per tonne of CO₂, those uncounted emissions translate to an additional 2.4 billion kroner cost.
A Climate Calculation Nobody Was Meant to See
The 20 kilometre, four lane motorway will cut across Egholm island, linking the E45 south of Aalborg to the E39 north via a tunnel under the southern Limfjord and a low bridge over Nørredyb. According to the updated environmental impact report, it includes five interchanges serving Hobrovej, Aalborg Airport and key arterial roads. For the city’s growing international population, which grew from about 5,500 foreign nationals in 2008 to over 13,000 in 2023 according to Statistics Denmark, this is not an abstract infrastructure debate. Critics argue that it is expected to influence commuting patterns to the university, hospital and airport, and to shape future transport investment priorities for a generation.
Rådet for Bæredygtig Trafik and environmental group NOAH submitted the construction emissions figure to the Transport Committee after analysing the updated environmental impact report. They argue that including this CO₂ cost would push the project into clearly negative economic territory. According to a critical economic analysis cited by Rådet for Bæredygtig Trafik, the motorway delivers an internal rate of return of just 3.3 to 3.5 percent, barely above the discount rate the Ministry uses and well below returns from rail and public transport projects.
Groundwater Under Threat
The Danish Society for Nature Conservation’s Aalborg branch warns that six regional groundwater bodies near the route are already in concerning chemical condition due to elevated nitrates, pesticides, chromium and zinc. Their hearing response indicates that updated hydrological modelling shows construction will lower groundwater levels in certain areas, risking contaminated water and saline intrusion moving towards drinking water wells. According to DN Aalborg, that would breach the EU Water Framework Directive’s core principle that projects must not cause deterioration of water body status.
The project received political approval in the broad 2021 infrastructure agreement and appeared settled. The updated environmental assessment, completed in 2022, triggered a new public hearing and fresh technical scrutiny. Submissions from NGOs and transport experts now sit in Parliament’s files, flagging climate and environmental risks that were peripheral in the original political debate. For internationals who followed Denmark’s legally binding pledge under the Climate Act to cut emissions 70 percent by 2030, the tension is stark.
Induced Demand and Low Returns
According to Vejdirektoratet traffic counts, traffic through the existing Limfjord Tunnel has grown from around 60,000 vehicles daily in the mid 2000s to over 80,000 today, with frequent peak hour jams. Supporters, including business lobbies and the national political majority, argue a third crossing is essential for logistics, freight to Norway via the E39 corridor, and economic development. Critics argue that although large stretches are planned with 130 km/h speed limits, lower speed designs have not been seriously prioritised, even though they could cut CO₂ and noise.
According to Eurostat greenhouse gas emissions data, Denmark’s per capita road transport emissions, at 2.3 tonnes CO₂e annually, sit above the EU average of 2.0 tonnes and significantly above the Netherlands at 1.6 tonnes. Eurostat data suggest that in some countries, such as the Netherlands and Austria, high investment in rail and cycling coincides with flatter or declining per capita car use and transport emissions. Allocating around 480,000 tonnes of construction CO₂ to one motorway sits uneasily with that trend and with Denmark’s legally binding climate targets.
What Residents Can Still Do
The updated environmental report was opened for public consultation in 2022 and 2023, allowing all residents, regardless of citizenship, to submit responses. Detailed, evidence based objections have already reached Parliamentary committee records, showing that citizen input shapes the debate. Authorities may accept hearing submissions in English, though Danish is generally recommended; check the official hearing notice on Vejdirektoratet’s project page for current language requirements. If the project proceeds to permitting, affected residents and NGOs can lodge complaints with the Danish Environmental and Food Complaints Board or bring cases to court on alleged breaches of EU water and habitat rules.
Vejdirektoratet’s project page hosts updated maps, technical documents and hearing notices, though English language summaries are sparse. Aalborg Municipality’s planning portal covers local plans for areas near the route, with public hearing windows for each. The EU Commission also accepts complaints about breaches of environmental directives, a mechanism used elsewhere to challenge motorway projects threatening protected sites and groundwater.
The Egholm motorway is a significant policy test. Denmark has adopted binding climate targets and is bound by the EU Water Framework Directive, yet continues to allocate billions to a project whose own updated documents flag serious environmental costs. For internationals living in Aalborg, tracking this debate is not just civic duty. It is about understanding whether the country you moved to will prioritise short term motorway politics or stick to the green promises that helped attract you here.
