This sounds like fun.
On Thursday, August 21, just before the final I-beam completes the steel phase of construction at the Lehigh County Courthouse addition, county workers will be given a chance to sign their John Hancocks. That starts at 11:30 AM, but will finish at 1 PM with signatures and short speeches by Lehigh County Exec Don Cunningham, President Judge Bill Platt and Commissioners' Chairman Percy Dougherty.
Will county officials let you sign the beam, too? As long as you're there early enough, I'm sure they'd try their best to accommodate. The beam signing will take place at 5th & Hamilton.