Natural spring

We have natural springs through our neighborhood and one just so happens to be right up from our driveway. We originally had a drain that would take care but that clogged up. In the winter the water flows much stronger and for months after a good rain, and sometimes not at all for a few weeks in the summer. Now it’s kind of turned into a sludge pond, and I would like it to be a nice pond now. First thing I’m going to cut all that overhanging crap and clean up above it, thinking about putting a crap ton of gravel and even shoring up the back for a retaining wall. Any ideas are helpful.

Thank you