Choose a crossing

Finish a level to unlock the next one.

How to build

1. Drag from a joint to any grid point to add a beam. Joints appear where beams end.
2. Road beams carry the vehicle. Steel beams are stronger and cost more; use them to brace the road from above and below.
3. Press Test bridge. Beams turn from yellow to red as they strain, and snap when overloaded.
4. Triangles hold shape; squares fold. Spend less to earn more stars.