News


Flood risks mount if Delta levees not rebuilt, report says

Delta Region 'unsustainable,' state agency warns

The risk of flooding near the Sacramento-San Joaquin Delta is likely to increase substantially over the next century if a new levee system is not implemented, according to a report released Friday by the California Department of Water Resources.

The department's Delta Risk Management Strategy Phase 1 report assessed major risks to the Delta levees from earthquakes, high water conditions, climate change, dry weather events, and a combination of these factors.

Phase 2 of the risk management project will evaluate long-term options to reduce the risks and consequences of levee failures. The second phase is expected to be available for public review in the fall.

The report released Friday concluded "the Delta Region as it exists Friday is unsustainable."

According to a previous report, an earthquake with a magnitude of 6.7 or greater has a 62 percent probability of occurring in the vicinity of the Delta Region by 2032.

If a major earthquake occurs, levees would fail and as many as 20 islands in the region could be flooded simultaneously, according to the report released Friday.

Winter storms causing high-water conditions are the most common cause of levee failures in the region, and the report estimated about 140 levee failures would occur in the next century due to storms if no new changes were implemented.

Much of the land in the Delta Region is below sea level and many of the region's 1,330 miles of levees were built at least 100 years ago without using modern engineering practices, according to the department.

Bay City News,Jeb Bing

Comments

Like this comment
Posted by As
a resident of Donlon Elementary School
on Mar 21, 2009 at 10:41 pm

and yet they want to blow how much on trying to make Stanley pretty?

Time to use those infrastructure funds for fixing the real hazards like inspecting and repair/ replacing Levees and bridges.

An ugly but functional street is not going to kill anyone, we sure don't need the next big man made disaster happening here.


Like this comment
Posted by Stacey
a resident of Amberwood/Wood Meadows
on Mar 22, 2009 at 12:09 am

The delta residents should take care of their own infrastructure thank you very much. Stanley needs to be fixed to facilitate shopping access.


Like this comment
Posted by Jerry
a resident of Oak Hill
on Mar 22, 2009 at 12:53 am

I could be wrong but I think the last levee break was caused by muskrats burrowing through the levee...

I seem to recall a fisherman on the levee saw the seepage and before he could report it, it blewout...


Like this comment
Posted by Pete
a resident of Another Pleasanton neighborhood
on Mar 22, 2009 at 8:22 am

Thanks for the laugh this morning!


Like this comment
Posted by Stacey
a resident of Amberwood/Wood Meadows
on Mar 22, 2009 at 8:31 am

Stacey is a registered user.

The above post was not written by me. I would not construct a sentence so poorly.


Posted by Name hidden
a resident of Ridgeview Commons

on Apr 26, 2017 at 7:01 pm

Due to repeated violations of our Terms of Use, comments from this poster are automatically removed. Why?


Sorry, but further commenting on this topic has been closed.

Couples: Do you Really Agree or are you Afraid of not Agreeing?
By Chandrama Anderson | 0 comments | 807 views

Castlewood may consider selling Valley course for development
By Tim Hunt | 7 comments | 552 views

Lab scientists find better ways to ID individuals who die in catastrophic events
By Jeb Bing | 1 comment | 192 views