Billim's Bifrost Bridge

This spell causes an anchored bridge of solid crystal to form, stretching from two areas indicated during the casting (both of which must be in range of the spell) to join in the center. The bridge cannot form in an area occupied by physical objects or creatures. Its surface must be smooth and unbroken when created. It can join two areas of differing heights, as long as the bridge does not climb or descend at an angle of more than 45 degrees (in other words, the vertical distance cannot exceed the horizontal distance between its anchor points).

The bifrist bridge is 1 inch thick. It can support up to 1,000 pounds of weight. If the weight limit is exceeded, the bridge instantly crumbles into a fine white powder and vanishes in 1 round. Each 5-foot square of the bridge has 15 hit points. Creatures can hit the bridge automatically, but it has AC13. If any part of the bridge is reduced to 0 hit points, the entire bifrost bridge collapses.

At Higher Levels:  When you cast this spell at 4th level or higher, you increase the thickness by 1 inch per level beyond 3rd. Every inch increases weight limit by 1,000 and adds 15 hp per level above 3rd.