How does the Coronado Bridge compare to the Baltimore Key Bridge?

CBS 8 San Diego2024-03-27

[ local#news ]

5K views|4 months ago

💫 Short Summary

Engineers compare safety measures of Coronado Bridge and Baltimore Key Bridge after recent collapse. Emphasis on safety in bridge construction, structural differences noted. Impact of cargo ships on bridges, design considerations. Large ships prohibited under Coronado Bridge, Caltrans' safety standards and fender systems highlighted. Plans to review Maryland incident for future bridge safety improvements.

✨ Highlights

📊 Transcript

✦

Comparison of safety measures between Coronado Bridge and Baltimore Key Bridge post-collapse.

00:37

Engineers prioritize safety in bridge construction to prevent accidents.

Structural variances between Coronado Bridge (Girder) and Baltimore Key Bridge (truss arch).

Impact of cargo ships on bridges and the importance of design considerations.

Large ships are restricted under Coronado Bridge; Caltrans enforces strict safety standards and fender systems on major bridges.

00:00Tonight,

00:00there are questions about the engineering and construction of other

00:03bridges around the country and we wanted to know about

00:05the safety of the Coronado Bridge and if there are

00:07any safety measures in place to prevent a disaster.

00:10Here,

00:11CBS A Jasmine

00:12Ramirez joins us in studio with what she's learned. Jasmine.

00:15Yeah. Well, tonight, I've been speaking with engineers about how the Coronado

00:18bridge compares to Baltimore's key bridge.

00:21I've learned this specific type of bridge played

00:23a major role in what happened last night.

00:26Baltimore's key bridge collapsed after it was struck by a massive cargo ship,

00:30such a unique set of circumstances and such a tragedy,

00:34no one can anticipate such things happening.

00:37Engineers say safety is always the priority when building these structures.

00:42We as engineers, our

00:43job has a lot to do with the safety and well being of the public

00:47structural engineer, Nehemiah

00:49Mabry says the Baltimore bridge was built in the 19

00:51seventies and Coronado Bridge was built in the sixties structurally,

00:56they're very different.

00:57He says the Coronado bridge is a Girder bridge

01:00while Baltimore's is a truss arch bridge referring to sort

01:04of the diagonal parts of the metal and the still above and then the arch is the shape,

01:08they're actually among the strongest freestanding structures,

01:11I guess one could design yet.

01:13The cargo ship hitting the support structures

01:15appeared to snap the bridge in Baltimore.

01:17The Structural Engineers Association of San Diego

01:20says bridges just aren't built for this type

01:23of impact impact from such a big ship is not something that you typically design.

01:28Uh But uh you know, the Coronado Bridge,

01:30uh large ships are actually not allowed to sail under it.

01:34There are separate shipping channels uh For those kind of ships tonight,

01:39I reached out to Calan

01:40about the Coronado bridge.

01:42I'm told save is prioritized through rigorous

01:45and strict seismic and safety standards.

01:47Caltrans

01:48has installed fender systems on all major bridges to protect them if they're struck

01:53and all state owned bridges are inspected to meet the highest national standards.

01:58Our thoughts and prayers are just with everyone affected even in, in the least bit

02:02by this this tragedy out in Baltimore and I'm

02:06pretty sure the authorities and those in charge will,

02:08will make the right decisions moving forward.

02:11Caltrans

02:12also says they plan to review the incident in Maryland and will

02:15address their findings to help increase bridge safety in the future.

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