A heads up for North St. Vrain boaters. There is a real low foot bridge about a 1/4 mile up from the turn off on the Shelly's run. It's sort of hidden from view. We skipped it today as there are no real eddies above to get out with a group and it would require a long portage around private property to re-enter the river. I don't think you can get under the bridge with out being upside down. This is certainly a hazzard at this water level and definitely changes the run possibilities.