see https://steamcommunity.com/workshop/filedetails/?id=2368852720

Usage (modder):
1. Create bridges with 4 cases: ordinary without abutment, abutment at the start, abutment at the end, abutment on both extrmities.
2. Create a .lua script file under res/config/game_script, following the example code under res/config/game_script/example.code
3. DON'T COPY abutment.lua in your mod, doing this will lead to conflict.
4. This mod is remove safe, it doesn't any introduce in a gamesave or other mods, if this mod is not loadded, the game will simple ignore the script above.