River des Peres Watershed Coalition

Greening 36 Neighborhoods to Improve, Protect, and Maintain the River!

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When: Saturday October 25, 2025

Where: Multiple Locations in the River des Peres Watershed

Save the fourth weekend in October for the River des Peres Trash Bash, October 25th.

Volunteers choose from multiple clean-up locations or storm drain marking sites each year. All clean-up opportunities have a site supervisor present to provide volunteers with supplies, sign-in participants and lead them through the clean-up of the chosen site. Do you know of a stream site in the River des Peres watershed that needs a group of volunteers to clean of litter or have a stream team litter pickup project that needs support? Open Space would love to hear from you! Please contact This email address is being protected from spambots. You need JavaScript enabled to view it. to provide the information for the site that needs help.

River des Peres Watershed Festival is October 25th! (Following the cleanup)

If you thought Bike with Your Boots On was fun (and it is!) - the annual Trash Bash & Watershed Festival is a once a year good time for all.

Join us for the RdP Watershed Festival with Passport to Clean Water 11 am - 2 pm following the cleanups. this event is a volunteer appreciation picnic with live music, unique trash contest and educational activities. (Truly something for everybody!)

When: Sunday June 1, 2025 at 9:00 am

Where: Fultz Field parking lot along River des Peres Blvd, St. Louis, Missouri

River des Peres Watershed Coalition invites experienced water quality monitors and interested citizens to participate in Bike with Your Boots On along River des Peres Greenway in St. Louis!

Join us on Sunday, June 1 at 9 a.m. Meet at Fultz Field parking lot along River des Peres Blvd, St. Louis, Missouri. Trained water quality monitors will collect water quality monitoring data at sites and can offer opportunities for new trainees or interested citizens to observe. No experience in water quality testing is required, but everyone must wear a bike helmet if bike riding.

Volunteers can bike ride on the Greenway Trail or drive directly to the monitoring sites. Please bring a water bottle to keep hydrated and be prepared for the possibility of getting your feet wet. We can use the data collected throughout the day to have a snapshot of the health of the River des Peres Watershed.

Everyone is welcome but we are looking for trained water quality monitors. Be a water champion and have fun to boot.

Please RSVP to This email address is being protected from spambots. You need JavaScript enabled to view it. if interested. (You won't regret it)

Help improve the River des Peres watershed health by rainscaping! See funding opportunities and resources...

The mission of the River des Peres Watershed Coalition is to improve, protect, and maintain the River des Peres, its tributaries, and its watershed as a vital natural and cultural resource in the St. Louis metropolitan area. To learn more, become a member, and find out about volunteer opportunities, contact This email address is being protected from spambots. You need JavaScript enabled to view it..

More information available at Rainscaping 2022

Rain Garden Rain Garden Rain Garden

Rainscaping Garden Installation images courtesy of Pretty City Gardens and Landscapes