Floods in Coquille and Myrtle Point

[pdxMIKEpdx]

Did you mean that Portland PUT UP a sea-wall because they could not rely on the flood control dams?

Historical Threads: Construction of Portland Harbor wall, 1927-1929

Portland even has a temporary metal sea wall stashed away somewhere to increase the height of the current seawall in case of flooding.

http://www.portlandonline.com/shared...e.cfm?id=83414

[Larry Caldwell]

Originally Posted by pdxMIKEpdx

Did you mean that Portland PUT UP a sea-wall because they could not rely on the flood control dams?

Historical Threads: Construction of Portland Harbor wall, 1927-1929

Portland even has a temporary metal sea wall stashed away somewhere to increase the height of the current seawall in case of flooding.

http://www.portlandonline.com/shared...e.cfm?id=83414

The flood control dams were not built until the '50s and '60s, after WWII. If you go where Tom McCall Waterfront Park is now, you would have seen a 10' tall concrete wall that protected downtown from river flooding. They took the sea wall down so you can see the river from the park.

About 20 years ago there was a big flood, and Drake Construction built a plywood sea wall. The river came within inches of overtopping that. It's only a matter of time before the first story of downtown Portland is under water. Tualatin allowed development in a flood plain, and it has flooded several times.

To get back to Coquille River flooding, it floods fast and high. The roads often close during heavy rain events. Make sure you have groceries stocked if they predict flooding, and realize that you may not be able to get home or get to the store until the water goes down. There's usually a jet boat to navigate the waters, but an outboard is hazardous because of debris in the water. The current can flow faster than many boats.

[Cloudy Dayz]

Originally Posted by Larry Caldwell

Portland did something. They took down the sea wall along the Willamette. They got a nice waterfront park out of the deal, at the risk of relying on the flood control dams in the mountains.

Don't buy or build in a flood plain. Have a boat in case you need to get groceries.

New development? Google shows the wall still intact as of May 2017.

[pdxMIKEpdx]

About 20 years ago there was a big flood, and Drake Construction built a plywood sea wall. The river came within inches of overtopping that. It's only a matter of time before the first story of downtown Portland is under water.

During the flood of '96, my sons and I went downtown and helped fill and stack sandbags on the harbor wall.
One day we were about 20 feet away from Vera Katz and her "people".

Plus, I really don't think that downtown Portland will be "under water" anytime soon.

Where are you getting all this "information" from, by the way?

Portland's harbor wall has been there since I was a little kid, and I do not remember any deconstruction, nor can I find anything about it online.

[pdxMIKEpdx]

BTW, there is a BIG difference between a "Sea Wall" and a "Harbor Wall".

Portland has a "Harbor Wall" that was only in danger once since it was built, in 1996.

Also, there are about 20 tributaries that feed the Willy, and in 1996 there was a huge mix of heavy mountain snowfall, tons of warm rain, and warm temps that melted the heavy mountain snows and caused huge flooding...

I remember boating the Willamette after the flood and seeing a small boat and debris twenty feet up in the trees.
I doubt conditions and a flood like that will ever happen again in our lifetime.....

But enough of Portland.
Floods in Coquille and Myrtle Point don't have ANY effect up here whatsoever.

[Larry Caldwell]

Originally Posted by Cloudy Dayz

New development? Google shows the wall still intact as of May 2017.

The seawall was lowered 8' as part of the Harbor Drive/Waterfront Park redevelopment.

[pdxMIKEpdx]

Why don't we just drop this?
It's silly.

It really doesn't matter, and downtown Portland is absolutely in no danger of major flooding, as "Myrtle Creek Larry" suggests.

(it's a Harbor Wall, BTW, not a Sea Wall, look up the difference)

[Larry Caldwell]

To get back to Coquille, 42S from Coquille to Bandon is an elevated roadway over mud flats. It is very curvy, and has truck length restrictions. It's also not that high. There aren't many home sites out there, and I doubt the county would issue a building permit along 42S because septic systems would flood. 42S was closed a couple of times last winter for floods and debris removal. Floods on the lower Coquille can persist for months.

Myrtle Point sits above a choke point in the main channel, so flood waters rise and fall quickly.

It's easy to just build on higher ground, so no other action is necessary.