The road over the Charlestown Bridge (N. Washington St. which then becomes Rutherford Ave) would benefit from "Bicycles may use full lane" signs in both directions. See Manual of Uniform Traffic Control Devices, sign R4-11.
Experienced cyclists on this stretch of road already use the full lane and a formal sign notifying motorists would be helpful. Inexperienced cyclists either hug the edge in what becomes a truly dangerous maneuver on the bridge or they illegally and awkwardly squeeze past pedestrians on the sidewalk (which currently has scaffolding on one side during construction work, and heavy pedestrian traffic at times on both sides).
This is not a re-design. It is a sufficiently clear-cut case that it just seems like an oversight to be handled by a replacement of signs that should have been there in the first place.