TREES promotes river clean-ups throughout the Trinity River watershed (see their site for events throughout North Texas) and this weekend's cleanups involve areas near and along the Trinity Trails.
The river and trails could really use some help with litter clean-up after the recent storms.
The Fort Worth event is lead by the TRWD (Tarrant Regional Water District) and there is also an event in Benbrook.
You can register for the Fort Worth/TRWD Trash Bash on TRWD's website. There are 7 primary clean-up areas and the Trash Bash Party site shown on this TRWD map.
From the TRWD site:
The 19th annual Trinity River Trash Bash will be held September 18, from 8:30 to 11:30 a.m. at various points along the Trinity River.
All volunteers are invited to a party immediately following the cleanup at Rockwood Park in Fort Worth from 11:30 a.m. to 1:30 p.m. with food, prizes and entertainment by Radio Disney 620 AM.
Cleanup kits will be available to volunteers the day of the event at one of the registration sites. Participants receive free T-shirts and are eligible for numerous prizes donated by sponsors.