Open invitation to tender, deadline 20/03/2020, for operating and maintenance tasks related to electrical installations on national roads and county roads in Buskerud county. Number of tunnels with electrical installations: 21 on national roads and 7 on county roads. For bid documents click here where tenders must be sent and here for further information . The duration of the contract is from 01/09/2020 to 31/08/2025. Contact Norwegian Public Roads Administration, attn Christian Noreng, Lillehammer, tel +47 99581125, email christian.noreng@vegvesen.no. Ref.n. 19/244313. 03/20.