TKSST is taking a short summer break. Become a member to support our August return
The Kid Should See This

Dismantling the San Francisco–Oakland Bay Bridge

Weighing more than 25 tons each, the five 504 foot (153.6 meter) long trusses of the San Francisco–Oakland Bay Bridge’s eastern span have each been dismantled and lowered onto a barge that takes them away for further disassembly. In the Feb 2016 video above, video journalist Mark Jones explained how this 1935 feat of engineering was being slowly deconstructed in an environmentally friendly way.

Below, a speedy time lapse video of the third truss, taken away in May 2016.

As of August 2016, the last truss of the old Bay Bridge is ready for removal. The new eastern span opened in September 2013.

Related vids: What’s an Engineer? + The Engineering Process, Red PaperBridge, and the incredible monster-sized bridge building machine in action.

This Webby award-winning video collection exists to help teachers, librarians, and families spark kid wonder and curiosity. TKSST features smarter, more meaningful content than what's usually served up by YouTube's algorithms, and amplifies the creators who make that content.

Curated, kid-friendly, independently-published. Support this mission by becoming a sustaining member today.

🌈 Watch these videos next...

Cross a Bridge, a typewriter drawing by Lenka Clayton

Rion Nakaya

Every Bridge For Every Situation, Explained By an Engineer

Rion Nakaya

Every type of roller coaster, explained by a roller coaster engineer

Rion Nakaya

The Catenary and Mathematics All Around Us

Rion Nakaya

Succeed by Failing: Failure points and how to fix them

Rion Nakaya

Spaghetti bridges, a DIY engineering activity for kids (and adults)

Rion Nakaya

Construct a Roman aqueduct, a DIY engineering activity

Rion Nakaya

Making large magnetic cubes

Rion Nakaya

Can this super long logging truck turn and cross this tiny bridge?

Rion Nakaya