The flood system is actually pretty good in terms of the diking. It's the pump stations that are old and decrepit—or at least some of them. The local governments have been slowly upgrading them. The Somass River pump station is pretty fish-friendly. The Salmon River in Langley is pretty fish-friendly. There's a lot of habitat behind those dikes that would have been there prior to diking, so the more pump stations that we can fix and make fish-friendly, the better we are.
Recall that 50% of the Fraser River stocks were actually below Hope, downstream of Hope, so your point is really well taken. All of these dikes, all of these pump stations, have an impact, and fixing those has potentially large benefits.