Lohja compound pipelines

Sweco took part in the construction planning of Lohja’s compound pipelines.

FACTS

PROJECT

Lohja compound pipelines

YEAR

2012

CUSTOMER

City of Lohja

BACKGROUND

In total, 45 kilometres of water and sewage pipelines were built. In connection to this project, the Karjalohja, Sammatti and Nummi-Pusula wastewater treatment plants were shut down and the wastewater treatment was centralised into the Pitkäniemi wastewater treatment plant in Lohja. Centralising the wastewater treatment improves the treatment results and reduces the emission burden of water bodies.

In order to secure water distribution, water pipelines were also built in the excavations intended for the sewage pipelines.

SOLUTION

In this project, Sweco was in charge of designing the pipelines and pump stations as well as the project’s geotechnics, field measurements and geotechnical investigations.