"That’s right: There’s not a single bridge in the state of Maryland that will take you across the Susquehanna River safely on a bike or on foot."
A very well written article: https://usa.streetsblog.org/2014/04/24/will-maryland-finally-build-a-safe-bikeped-crossing-on-the-susquehanna/
And if you have not already, sign the petition: https://www.change.org/p/maryland-department-of-transportation-ensure-that-the-new-amtrak-susquehanna-river-bridge-will-accommodate-cyclists-and-walkers
Biking in Baltimore