The writing could be on the wall for an historic bridge in Allentown.

PennDOT is looking at lowering weight restrictions on a number of bridges.

Schreiber's Bridge on Martin Luther King Boulevard is one of them.

The weight restriction on this particular bridge is already at three tons which is the lowest restriction possible.

PennDOT says anything lower than that would result in closure.

City officials say PennDOT has not yet notified them about the change.