Are those concrete cassions designed to keep the train tracks from tumbling down? Some reporter should ask whoever’s in charge of maintenance, is it NCTD? Wonder when those were installed?
The mayor said the bluff has collapsed before at this spot, so those caissons may have been a retrofit?
M
on December 12, 2019 at 11:53 am
It might look precarious, but it’s really hard to tell by looking. I assume they have had engineers evaluate it and determine that it’s safe to run trains for the time being, at least.
Agree, and I’m no engineer so who cares what I think. But those caissons better go way deep!
Eddie89
on December 12, 2019 at 1:12 pm
I wonder if each time the train travels over that spot (even if at a slow pace), all that weight is producing vibrations that are travelling down those pillars and making that bluff even more precarious!
Yikes!!!
John
on December 12, 2019 at 1:17 pm
We lived in Del Mar in 2006 when those cassions were installed. They put them in all along the bluff and at that time we heard they would protect the train track for several decades. At this rate of failure there won’t be train service into San Diego for much longer.
Tom
on December 12, 2019 at 5:52 pm
Dig a deep port there and offload train loads to cargo ships to move to south ports. They ain’t bothered by rising seas
I am an engineer (sorta) and the caissons are there because the risk was addressed and the cure most likely contributed to the pattern/extent of the erosion. A new unnatural point of future slides. Big deal. Understand. The railroads CUT into the hills to make their coastal track. They didn’t build for centuries or service, they built for many decades and given how much longer their work has lasted they did a very good job.
Are those concrete cassions designed to keep the train tracks from tumbling down? Some reporter should ask whoever’s in charge of maintenance, is it NCTD? Wonder when those were installed?
The mayor said the bluff has collapsed before at this spot, so those caissons may have been a retrofit?
It might look precarious, but it’s really hard to tell by looking. I assume they have had engineers evaluate it and determine that it’s safe to run trains for the time being, at least.
Agree, and I’m no engineer so who cares what I think. But those caissons better go way deep!
I wonder if each time the train travels over that spot (even if at a slow pace), all that weight is producing vibrations that are travelling down those pillars and making that bluff even more precarious!
Yikes!!!
We lived in Del Mar in 2006 when those cassions were installed. They put them in all along the bluff and at that time we heard they would protect the train track for several decades. At this rate of failure there won’t be train service into San Diego for much longer.
Dig a deep port there and offload train loads to cargo ships to move to south ports. They ain’t bothered by rising seas
Love it! We need more yachts!
I am an engineer (sorta) and the caissons are there because the risk was addressed and the cure most likely contributed to the pattern/extent of the erosion. A new unnatural point of future slides. Big deal. Understand. The railroads CUT into the hills to make their coastal track. They didn’t build for centuries or service, they built for many decades and given how much longer their work has lasted they did a very good job.