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For the High school Port-a-Bridge
The Port-a-Bridge® by Griswold Machine & Engineering (GME) is a modular bridge system designed for rapid delivery and installation at the jobsite. The Port-a-Bridge is available in 10-foot increments, from 20′ to 50′ long. Each section is 6-foot wide. Two units join together to form a 12′-wide single-lane structure that allows vehicles, equipment, or foot traffic to proceed over or around the construction site or impassable area.
Typically, a bridge can be installed on-site in minutes, making it ideal for short- to medium-term usage. Units can be loaded onto a truck with a heavy-duty fork truck or small crane. Contractors on-site can install the units using excavators or small rough-terrain cranes.
The system is designed to permit the formation of multiple spans in multiple lanes, utilising our standard length units. The full-welded structural steel unites feature steel decking for maximum durability. They are designed to meet specific U.S. loading criteria, in accordance with AASHTO-US bridge design code by licensed professional engineers. Each unit can safely handle HS25 loading and typical heavy-duty dump trucks. Units also feature a vehicular crash barrier, also designed and detailed to accommodate pedestrian traffic.
photo submitted by Dom Nizza (different company same idea )
