Heading to I5 what’s traffic like during the day using Roxbury/Myers and South Park bridge vs W Marginal and 1st S bridge. Also,seeing more people going s bound use the turn lane to go past traffic to got to Holden. I’ve seen car’s go 1/2 mile in turn lane. Doubt SDOT or SPD can/will do anything.
Maybe try turning at Barton and go to 8th by Westcrest to turn onto Roxbury? Or maybe 16th by White Center to turn onto Roxbury if 35th is backed up so much.
As far as the sneaks using the turn lane to bypass traffic, SDOT could install a cement island in the turn lane, if not more than one. That would bring this practice to a halt.