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Started By
Message
Why do they make some bridges so high?
Posted on 5/7/25 at 3:22 pm
Posted on 5/7/25 at 3:22 pm
Baton Rouge, Lake Charles, Port Arthur etc
Doesn't seem there are any vessels that would need that high of clearance
Doesn't seem there are any vessels that would need that high of clearance
18
Posted on 5/7/25 at 3:23 pm to ChatGPT of LA
Anticipating global warming
Posted on 5/7/25 at 3:23 pm to ChatGPT of LA
quote:
Gov. Huey Long built the "old" bridge north of the city low across the river in the 1930s so that the ocean-going vessels couldn't proceed further upriver.
That's how you secure Baton Rouge as a port.
quote:
The height of the Huey P. Long Bridge, which carries US-190 over the Mississippi River in Baton Rouge, is 113 feet above the water.
Some modern ship sizes:
quote:
Q-Max, liquefied natural gas carrier for Qatar exports. A ship of Q-Max size is 1,132 ft long and measures 177 ft wide and 114 ft high, with a shallow draft of approximately 12 m (39 ft).
quote:
Seawaymax, 28,000 DWT the largest vessel that can traverse the St Lawrence Seaway. These are vessels less than 740 ft in length, 78 ft wide, and have a draft less than 26.51 ft and a height above the waterline no more than 116 ft.
This post was edited on 5/7/25 at 3:31 pm
Posted on 5/7/25 at 3:23 pm to ChatGPT of LA
don't want jumpers to survive and be crippled.
Posted on 5/7/25 at 3:24 pm to ChatGPT of LA
Except when that one crucial vessel needs to get through and its carrying cargo that is 35 feet higher than clearance.
Posted on 5/7/25 at 3:27 pm to ChatGPT of LA
New bridge allows ocean going ships. Old bridge forces then to stop in BR.
Posted on 5/7/25 at 3:29 pm to ChatGPT of LA
quote:
Why do they make some bridges so high?
Because they have a medicinal marijuana prescription.
Posted on 5/7/25 at 3:31 pm to ChatGPT of LA
quote:
Doesn't seem there are any vessels that would need that high of clearance
An arleigh Burke has an air draft of over 150 feet.
Posted on 5/7/25 at 3:31 pm to Locoguan0
quote:
New bridge allows ocean going ships. Old bridge forces then to stop in BR.
The big passenger cruise ships can’t make it through the Crescent City Connection.
Posted on 5/7/25 at 3:33 pm to Y.A. Tittle
remember the Carnival Conquest?
Posted on 5/7/25 at 3:35 pm to ChatGPT of LA
quote:
Why do they make some bridges so high?
Posted on 5/7/25 at 3:39 pm to ChatGPT of LA
It maybe—-just maybe—is because they want to provide for future ships and clearance into the ports.
Posted on 5/7/25 at 3:39 pm to ChatGPT of LA
the river height fluctuations alone throughout the year are pretty wild.
Posted on 5/7/25 at 3:40 pm to Y.A. Tittle
quote:
The Crescent City Connection (CCC) has a clearance of 170 feet below the bridge deck, which is the vertical distance above the water level.
Carnival Jubilee: 227 ft 4 in
Mardi Gras (2020 ship): 227 ft 4 in
Carnival Panorama: Up to 158 ft
Carnival Vista: Up to 158 ft 7 in
Carnival Liberty: Up to 223 feet
Carnival Paradise: 115 ft 6 in
The Carnival Liberty and Carnival Valor are the two Carnival ships that are currently homeported in New Orleans
This post was edited on 5/7/25 at 3:41 pm
Posted on 5/7/25 at 3:50 pm to ChatGPT of LA
Vessel size and elevation needs to handle the expanse.
Posted on 5/7/25 at 3:51 pm to Mingo Was His NameO
quote:
Anticipating global warming
Ok, that's funny.
Posted on 5/7/25 at 3:52 pm to Shexter
quote:
Gov. Huey Long built the "old" bridge north of the city low across the river in the 1930s so that the ocean-going vessels couldn't proceed further upriver.
WRONG. There is a rock ledge formation just above the Old Bridge. Other than mini-ships none can go further upriver. The rock ledge is what holds the sand from coming down river and why all the sand dredges above it.
Posted on 5/7/25 at 3:55 pm to ChatGPT of LA
The standard air draft for bridges established by feds is 135 feet clearance. The Rainbow Bridge from Bridge City to Port Arthur was built before the standardization. thus 175 feet clearance. My dad hitchhiked from Laffy to ride over it when it first opened in the 1930's
This post was edited on 5/7/25 at 3:57 pm
Posted on 5/7/25 at 3:57 pm to ChatGPT of LA
quote:
Doesn't seem there are any vessels that would need that high of clearance
Except you’d be wrong in the case of Baton Rouge. Commercial ocean freighters and bulk carriers with their own cranes on board have to go as far north as the wharf at Exxon in north BR. At least two are docked at the Port or Baton Rouge immediately below or near the I-10 bridge most of the time too.
Lake Charles….the new I-10 bridge will be lower. Most of the industry is south of that bridge.
This post was edited on 5/7/25 at 4:00 pm
Posted on 5/7/25 at 3:57 pm to ChatGPT of LA
I always get sweaty palms driving over the basin or the bridges in Lake Charles. Did it Fri, Sat, and Sun. to Sulphur. Still tired
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