Detroit River Water Levels...
http://glakesonline.nos.noaa.gov/monitor.html

Detroit River Video Link
...check out this link to the
EPA / Detroit Water & Sewer Dept/ and University of Windsor, Ontario joint project:
"Evaluating Ecosystem Results of PCB Control Measures Within the Detroit River- Western Lake Erie Basin"
...the video about the sedimetation has some cool aerial video from 2003 and shows the river from the Canada / US perspectives
http://www.tellusnews.com/ahr/epa/index.shtml#video1