Bridge of Branches

You cause large branches to sprout from a surface, creating a makeshift bridge up to 20 feet in length. The bridge can hold up to 600 pounds at once. The bridge has AC 10 and 50 hit points. If the bridge is reduced to zero hit points, the entire bridge collapses and immediately withers away.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the bridge’s length increases by 10 feet, its weight limit increases by 100 pounds, and its hit points increase by 25 for each slot level above 1st.

Source: Sprouting Chaos Player's Companion