Four navvies were killed during construction, three in a landslide in a trench and one by a piling log, all in Levanger. Construction on the line's second part, from Levanger to Sunnan, started in 1901. Part of the reason for the early start was to help employ older navvies who were working on the southern section during the summer. At Røra, a spur was originally planned to Hylla, but this was discarded late in the planning phase. At Hellem in Inderøy the right-of-way had to be moved because of poor soil mechanics. There were similar issues north of the Lunnan Tunnel, forcing the tunnel to be extended and a supporting being built. Steinkjer is surrounded by a moraine which had to be traversed with a cutting, long and up to deep. of earthwork was removed, half with a steam shovel, and largely used to build reclaimed land for the railway's right-of-way through Steinkjer.