tsunami

[Sunsettommy]

Two foot sea level rise over 100 years doesn't effect any major sea port ... those docks are 20 feet above high tide ... you live in a major seaport ... get off your lazy fat ass and cycle down to the damn wharves and look ...

Yeah ... two feet ... based on actual science ... read them and wheat ...

The Docks at the city of Richland parks are designed to go way up about 12' higher to accommodate high river flows in June-July time that comes in some years but the incredible 1996 flood got them all the way to the top a little more and they could have floated away.

 

[Mushroom]

The Docks at the city of Richland parks are designed to go way up about 12' higher to accommodate high river flows in June-July time that comes in some years but the incredible 1996 flood got them all the way to the top a little more and they could have floated away.

Obviously somebody knows little to nothing about piers, docks, and wharfs. That is clear by reading your response to them.

They are built up higher in order to compensate for changes in tides, in addition to what they may get during storm surges in that location.

That is why piers, docks and wharfs like that of San Diego, Long Beach, Santa Monica and Seal Beach are often up to 30 feet over high tide, yet the piers and wharfs at say the Mare Island Naval Shipyard and nearby were only about 5 feet above high tide. The former are right on the coast so could get considerable storm surges, the latter is well inland of the coast along a river north of the San Francisco Bay so gets almost no storm surge (and hence wharfs that are only about 10 feet above high tide levels in San Francisco).

There is no single answer for how high structures like that are above sea level. They are all built to meet the needs of the local hydrology and potential storm conditions.

And yeah, I have actually spent a hell of a lot of time on the water (kinda goes with my hobby of sailing boats and having been a Marine). Most recently as I often commuted by ferry in the Bay Area for over a year. Sometimes walking down to the boat from the dock, sometimes walking up to the boat from it. And one of the reasons why San Francisco made such a great port location was because the narrow Golden Gate greatly reduced the effects of storm surge compared to any other ports up and down the California coast. It's a natural "flow restrictor" that prevented the bay from suffering significant storm surges.

I still remember 1983 when a powerful El Niño storm with record high storm surges destroyed piers all up and down the California Coast. The storm surge was so high that it literally was battering the structures from the underside and smashing into the end of the pier instead of simply going under them.

I was laughing when you were told to "go to the wharves and see". As that will vary a hell of a lot, depending simply on where you are. As I saw from the wharf when I was stationed at Seal Beach (right on the coast facing the Pacific), and from the wharf at Mare Island (well inland) and Stockton (over 50 miles inland).

 

[Sunsettommy]

Obviously somebody knows little to nothing about piers, docks, and wharfs. That is clear by reading your response to them.

They are built up higher in order to compensate for changes in tides, in addition to what they may get during storm surges in that location.

I am aware of the difference between ocean based docks and river based docks, it was an observation that even rivers level changes can be large enough to cause problem hence the reason for the high dock anchorage piles.

The Columbia river in June run off empties more water into the ocean than any river in the world thus some year flooding happens as the famous flood of 1948 and 1996 attests.

Flood inundates Kennewick and Richland on May 31, 1948.​

 

[ReinyDays]

Obviously somebody knows little to nothing about piers, docks, and wharfs. That is clear by reading your response to them.

They are built up higher in order to compensate for changes in tides, in addition to what they may get during storm surges in that location.

That is why piers, docks and wharfs like that of San Diego, Long Beach, Santa Monica and Seal Beach are often up to 30 feet over high tide, yet the piers and wharfs at say the Mare Island Naval Shipyard and nearby were only about 5 feet above high tide. The former are right on the coast so could get considerable storm surges, the latter is well inland of the coast along a river north of the San Francisco Bay so gets almost no storm surge (and hence wharfs that are only about 10 feet above high tide levels in San Francisco).

There is no single answer for how high structures like that are above sea level. They are all built to meet the needs of the local hydrology and potential storm conditions.

And yeah, I have actually spent a hell of a lot of time on the water (kinda goes with my hobby of sailing boats and having been a Marine). Most recently as I often commuted by ferry in the Bay Area for over a year. Sometimes walking down to the boat from the dock, sometimes walking up to the boat from it. And one of the reasons why San Francisco made such a great port location was because the narrow Golden Gate greatly reduced the effects of storm surge compared to any other ports up and down the California coast. It's a natural "flow restrictor" that prevented the bay from suffering significant storm surges.

I still remember 1983 when a powerful El Niño storm with record high storm surges destroyed piers all up and down the California Coast. The storm surge was so high that it literally was battering the structures from the underside and smashing into the end of the pier instead of simply going under them.

I was laughing when you were told to "go to the wharves and see". As that will vary a hell of a lot, depending simply on where you are. As I saw from the wharf when I was stationed at Seal Beach (right on the coast facing the Pacific), and from the wharf at Mare Island (well inland) and Stockton (over 50 miles inland).

It's clear you know nothing of riverine sea ports ... or perhaps you're not familiar with the Port of Portland, Oregon ... she's a good 90 miles upstream on the Columbia River ... tides but no storm surge and certainly no tsunamis ... go visit Stockton or Sacramento's blue-water wharves ...

Mare Island is safe for hundreds of years still ... and Miami, Florida, is higher still ... besides, it's only 9 miles all around the place ... how long would it take to build a two foot sea wall ha ha ha ha ha ha ha ha ... maybe by then Mare Island won't be worth saving ...

One point of fact ... if you live near the Bay, then that's not Jefferson ... the southern limit is Lake and Sutter Counties ... you know ... Trump Country ... are you familiar with the borders of New Sweden? ...