Traffic restrictions planned on I-83 so beams can be set on 29th Street bridge: PennDOT
The Pennsylvania Department of Transportation (PennDOT) reminds travelers there will be lane restrictions and rolling stops ...
PBS3 个月
Beam bridge
A beam or "girder" bridge is the simplest and most inexpensive kind of bridge. According to Craig Finley of Finley/McNary Engineering, "they're basically the vanillas of the bridge world." ...