The bridge has two 554-foot towers and a main span of 3,800 feet, making it the third-longest suspension bridge by main span length in the U.S. Live camera feeds provide up-to-the-minute views of ...

5. Now change the beam bridge into a suspension bridge. Tie the center of a 100-cm (about 4 ft.) cable around the middle of a new straw. Place the straw between the towers.

Michigan’s iconic Mighty Mac suspension bridge is among 68 in the United States that should be assessed for risk of collapse if stuck by a ship, national transportation officials said. The ...