Bekkelagsbekken – Kongshavnveien

Oslo’s Water and Sewerage Agency is building a new stormwater line from Jomfrustien on the Ekeberg ridge to the Oslofjord, with Steg Entreprenør as main contractor. Works include a 600 mm bored rock tunnel to the harbour and a 1000 mm concrete pipe out to the quay front.

Geoteknia joined in the construction phase, planning and carrying out supplementary ground investigations and quality-assuring and supplementing the construction documents.

Detailed design of a reception pit and reaming pit in a challenging slope below the E18 Mosseveien, evaluation of trench solutions toward the quay, and independent checking of the designed bore pit at Jomfrustien.