It's main purpose was to keep the entrance clear of the Boulders that slide out of the Snow Cave during the Roblox's "Winter Games 2017" Event, so players didn't need to purchase Dynamite to access the biome. However, boulders were disabled from spawning anyway, meaning that the Taiga Scaffold only served as decoration throughout the event. This allowed for an easy entrance for new players to be able to complete the event's quest with additional ease.
On March 1st, the Taiga Scaffold was moved to underneath the entrance to the Taiga, which includes a section of water below.
The scaffold bears a resemblance to the framework of a short tunnel. The framework is made out Roblox's "plank" texture and has a colour similar to that of Oak planks. The length of the tunnel on the sides are outlined by columns supporting beams crisscrossing each other to form a grid pattern on the roof.