Be careful what you wish for. I once saw a proposal to put a dam on the Sacramento/San Joaquin at the Carqueniz Strait so that more freshwater could be sent to SoCal. I bet you could get funding the Grand Mound dam if it included a pipe to LA.

EXACTLY! The one time every 500 years or so you really need a dam for flood control, it FAILS. True, dams help control minor floods, but it's not minor floods they're built to control.

The only effective means of preventing flood damage is by NOT BUILDING IN FLOOD PLAINS. EVERY PERSON clamoring for flood control dams on the Chehalis either lives or works next to the river (and in many cases paid a premium for the right to do so). I absolutely understand people wanting to protect their investments, but putting that burden on other people, who did not make the choice to build next to a large river, as well as the wildlife that will be compromised by dams, is flat out shameful.

Log it.
Build it.
Back it up.
Controlled release it.

Build more downstream..

Add a few parks as well.
Pay an extra $5 on your tabs to help support them.