Past July river levels

The average river level for July 1, according to the U.S. Geological Survey:

1997: 23.15 feet.

1998: 28.67 feet.

1999: 18.11 feet.

2000: 35.78 feet.

2001: 18.85 feet.

2002: 29.97 feet.

2003: 23.77 feet.

2004: Not available.

2005: 25.70 feet.

2006: 16.63 feet.

2007: 24.57 feet.

2008: 18.00 feet.

2009: 31.1 feet (1 p.m. prediction).