NOAA has river level predictions for the Mississippi in the same pool as Sylvan Island.

On Sylvan Island, we start getting water on the lime path on the downstream side of the island at about 14ft. At 14.5 the wood and shingle bike bridge gets water over both ends and the middle starts wanting to float. At 15 ft, we have water on numerous places on the interior of the island and at 21 feet, the water is up to the bottom of the bridge going to the island.

So far we're looking pretty good for the race this year due to the low rainfall in the last 2 weeks. If you want to keep up with what the river heights are doing so you can plan to help out if we need a bunch of bridges, the prediction scale is located here:

http://www.crh.noaa.gov/ahps2/hydrog...,1,1,1,1,1,1,1

-Vibrato