Looks like none of the gauges effected are relevant to boating.
My interpretation of the page is that most gauges affected by the sequestration are still pending and yet to be announced. I believe the ones listed are ones that had already been decommissioned or slated for decommissioning. But then I can't really tell. The paged is called "Threatened and Endangered Stations", but it includes "recently discontinued" sites. That doesn't make sense.
Also, you hydro experts, is "streamgage" really the proper spelling for these things? Why isn't it "streamgauge"? Can we just start writing "streamflo"? Ok, I'm dne. Ltr gyzs.