Snapshots from the last 50 years of water-shed district history. How have things changed? And what has stayed the same?
1968
70 people from Bloomington, Chanhassen, Deephaven, Eden Prairie, Minnetonka, and Shore-wood petition the state Board of Water and Soil Resources to create a watershed district.
1969
1969: The Riley Purgatory Water-shed District is formed July 31.
1984
Bluff Creek was incorporated into the District, and the name changed to the Riley Purgatory Bluff Creek Watershed District.
An Annotated Guide to
Your Watershed

1969: The first watershed management plan was published.

2018: The 4th generation management plan was published.

1974: A regulatory program was created to help prevent pollution.

2014: A new regulatory program was adopted.
1977: The first Capital Improve-ment Project was undertaken in partnership with the City of Minnetonka. Together, they worked to upgrade culverts at three creek crossings including Highway 7.
1977
2016: Completed its first creek restoration project, on Purgatory.
2016
Mid 1960's: Residents of Duck Lake look into the formation of a watershed district after their base-ments flood.
Mid 1960's
1985: A petition was received from Eden Prairie to connect Round, Mitchell, Red Rock, and Staring Lakes by pipes to reduce flooding and emergency pumping.
1985
1985: A petition was received from Eden Prairie to connect Round, Mitchell, Red Rock, and Staring Lakes by pipes to reduce flooding and emergency pumping.
1985
1985: A petition was received from Eden Prairie to connect Round, Mitchell, Red Rock, and Staring Lakes by pipes to reduce flooding and emergency pumping.
1985
1985: A petition was received from Eden Prairie to connect Round, Mitchell, Red Rock, and Staring Lakes by pipes to reduce flooding and emergency pumping.
1985
1996: Developed the first water quality assessment studies for all the lakes, and Purgatory Creek.
1996
1996: Developed the first water quality assessment studies for all the lakes, and Purgatory Creek.
1996
A successful management strategy for invasive carp in the Riley Creek watershed was devel-oped with the University of MN.
2011
2003: Chanhassen, Eden Prairie, and the District come together to improve Lake Riley water quality by enhancing and constructing storm-water ponds.
2003
2015: The new Creek Restoration Action Strategy study identified creek reaches, like this tributary, most in need of restoration.
2015
1987: The District’s forward-thinking flood control efforts were tested, and passed, when a super-storm brought 12” of rain in 72 hours.
1987
1991: Work began on creating the wetlands of Purgatory Creek Rec Area. This partnership project with the City of Eden Prairie stores flood water, cleans stormwater, and creates habitat and recreation.
1991
1971: Began a study that showed Hyland had too much phosphorus, and spurred a partnership with Three Rivers Park District to find out where it was coming from.
1971