This isn’t bridging: bridging is the process of connecting two parts of the model, like a bridge.
This looks like oozing. The streaks are from molten plastic coming out of the extruder when it’s transiting from one part of the model to another (and while it should not be extruding).
The he semi random nature looks like it might be happening when the z axis drops if you’ve got the option in slic3r to randomise the scar set, but that’s neither here nor there really.
There are two routes to dealing with this. First, try lowering your extruder temperature a bit and compare results- cooler plastic is more viscous and will dribble less.
The he next thing to try is tweaking retraction settings. This is much harder to get right.
A really good start here would be for you to read the simplify3d print quality guide (never mind that you don’t use simplify3d, it’s a really useful free guide for solving print quality issues. Free on their site. )