Road 261 Ekerövägen E1
A new innovative bridge featuring a rotating steel section, along with an upgraded road between Ekerö and Lindö, has now been completed. In addition to improving connections between the municipalities, the project facilitates smoother passage for boat traffic. Commissioned by Trafikverket, Agicon has served as the lead consultant for Comsa in executing the project.
Client
Trafikverket
Project type
Construction, Bridge, Road
Customer
Comsa Sweden AB
Contract
Design and Build Contract
Time frame
2019 - 2024
Roll
Site Manager, Chief Surveyor, Surveying Technician
Scope
2 km Road and Movable Bridge
Value
SEK 340 million
Cooperation
The project is a design-build contract in collaboration with Trafikverket and Comsa AB, following ABT 06. Agicon has played a leading role in production management, surveying, and project coordination.
New swing bridge replaces old bascule bridge
The old bascule bridge in Ekerö was in great need of maintenance, with outdated machinery and only two lanes restricting traffic flow. As part of the Stockholm Bypass project, the new Tappströms Bridge has now been installed. This new swing bridge is more cost-effective to build, operate, and maintain. Additionally, Ekerövägen has become widened to include four lanes, a pedestrian and bicycle path, and the existing roundabout has been relocated. The new bridge features a rotating steel section that opens for boat traffic by lifting and then rotating the bridge.
Challenging groundworks
The work involved challenging ground conditions that placed significant demands on the complex foundation work for the bridge. To create a stable base for the bridge supports, temporary pile platforms were anchored into the bedrock, and retaining walls were driven into the ground. This method allowed for the removal of clay and silt, and seals were cast on top of the steel and concrete piles anchored in the bedrock. With the substructure in place, water was pumped out, and we were able to cast the bridge piers before the ground was then restored.
The bridge is pushed into place
The movable part of the bridge was delivered in fifteen steel sections and assembled on site. Using SPMTs and sliding jacks, the new bridge was pushed into place and lowered to its final position.
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