The report does not say "burst."  It speaks of "breaching."  In other places in the report, it mentions the dam being "removed."  I believe this is a purposeful removal of an obsolete dam.  The rafter who was interviewed had been hired (by whom not stated) to assess silt in the river in relation to the breaching.

mcneely

---- Alistair Bell <albell@SHAW.CA> wrote:
> on the Columbia river  system
>
> http://www.youtube.com/watch?v=4LxMHmw3Z-U&feature=player_embedded
>
> Seattle TImes article
>
> http://seattletimes.nwsource.com/html/localnews/2016678515_apwadamremoval1stldwritethru.html
>
>
> alistair

--
David McNeely