Figure 12: Average sea level rise in 2050 (left) and 2100 (right)………………………….…….…p

future sea level rise (Trondheim kommune, 2019b). Figure 11 shows expected major flood events in 2050 and 2100 respectively. As is evident from the maps, several areas of Bakklandet are expected to be affected by the sea level rise in the years to come. Especially the buildings located near Nidelva, which also lie lowest in the terrain, are predicted to be affected. Significantly more buildings are affected in the year 2100 than in the year 2050. The floods are expected to cause a considerable amount of damage in the latter case.

However, the expected average sea level rise in the same years are, of course, of a smaller scale, as shown in figure 12. In other words, it is the expected major flood events that are thought to be the most influencing on Bakklandet in the future. Although some buildings in Bakklandet are affected when it comes to the future average sea level rise, the average sea level rise in Trondheim is expected to be relatively small and to not pose a major risk alone (Trondheim kommune, 2019c).

Trondheim municipality has made regulations in the municipal plan for large parts of Bakklandet when it comes to future sea level rise. Figure 13 shows the regulated area. The regulated area was calculated as a function of the expected maximum storm surge in 2100 with 1000-year repeated interval, added 1,2-meter wave impact. This led to a delineation at 4,87

Figure 12: Average sea level rise in 2050 (left) and 2100 (right). Source: Trondheim kommune (2019b).