Draw the truss. Send the truck. Pray.
Your name keeps your unlocked levels, stars, designs and high scores.
Make your own levels: banks, bolts, piers, pylons, masts, concrete anchors, ship channels, vehicles, budget and goals. They're kept in this browser. Export one to share it, and import levels others made.
A tap acts where your finger lifts, so you can slide it into place first, watching the magnifier. Two fingers pan and zoom without placing anything.
Rams extend by 75% while the bridge opens, hold while the ship passes, then pull it shut before traffic goes. Stand the ram square under the leaf, a few meters from the hinge: right under the hinge it runs out of reach and breaks something.
The line is the busiest member at each moment. Tap the graph to find it on the bridge, or tap a member to follow its own load. Dashed lines: 75% for the safety star, 100% breaks.