Greentree/McKenna Watershed Study

Last Updated: 11/01/2019

Project Description

The City of Madison will complete a watershed study in the Greentree/McKenna watershed (as shown below). The City of Madison water resource engineers will complete the study.
Greentree/McKenna Watershed Map
The Greentree/McKenna watershed drains to the south toward the Upper Badger Mill Creek ponds near Prairie Ridge Park.


The study is beginning Fall 2019 and is expected to take over 18 months. During this time, the city will look at watersheds as a whole to make sure solving a flooding problem upstream won’t push more water downstream and cause more flooding.

Public Information Meetings

The first public information meeting for this watershed is scheduled for Oct.23, 2019. The meeting is scheduled from 6:30-8:30 p.m., at the Elver Park Neighborhood Center, 1201 McKenna Blvd., Madison, WI 53719.
Oct. 23 Presentation 

Watershed Study Information

To learn more about flash flooding and why the City is completing a watershed study in this area please visit: Flash Flooding Resilience Story Map 

Listen to a presentation about the City's watershed studies at: Watershed Studies 2019 Audio Presentation.

Report Flooding

If anyone has experienced flooding, and is willing to share with the City, please report it on the City's website. Even if a homeowner reported flooding to 2-1-1, FEMA, or a City official, the City needs standardized information to create stormwater models that show existing flooding conditions. The flood data helps the City prioritize different flood projects and future watershed studies.

Additional Information