The flood levels of the Wabash at Lafayette last peaked on June 23 at 19 feet and the river has been receding ever since. The high water mark is visible in this picture of the Lafayette side of the river, taken from the pedestrian bridge on June 29, 2010. The Wabash river level at the time of the picture is about 9 feet.
Link to Wabash River levels:
The green roof shelter in the picture is the Amtrak loading station.