Separating arch

High school (ages 12+)
Transportation

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/separating-arch

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the primary engineering type?Movable bridge, commonly a swing bridge
2. What is the operational mechanism?Horizontal rotation of spans around a central pier or trunnion
3. What is a separating arch bridge and why does it lift up?A separating arch is a movable bridge that can lift or swing so big boats can pass underneath. It lifts to keep boats and cars moving smoothly.
4. How does a separating arch open for boats?The bridge has a span that pivots around a central point, like a swing, using electric motors or hydraulics. Counterweights help balance the heavy span.

Swing Bridge: A type of movable bridge where one or more spans pivot horizontally to allow passage.
Trunnion: A pivot or axle on which a movable bridge span rotates.
Navigable Channel: A passage in a river, harbor, or sea deep and wide enough for ships to sail through.
Bascule Bridge: A type of drawbridge with a movable span hinged at one end, lifting like a seesaw.