This bridge is an early example of a pre-stressed concrete
bridge in Michigan, with a 1958 construction date. The bridge retains original
and unaltered R4 style railings.
Pre-stressed concrete was a material and
construction method that would go on to become the most common form of bridge
construction in the late 20th Century and to the present day. As such, the
material has a rather wicked reputation among historic bridge enthusiasts since
this form of bridge often replaces historic bridges.
Interestingly, the bridge's deck and superstructure is listed in "poor"
condition in the National Bridge Inventory and evaluated as structurally
deficient. This bridge hardly made it past 50 years before gaining this
evaluation. This calls into serious question claims made by some states like
Pennsylvania who claim that historic truss bridges should be demolished and
replaced with modern bridges because the new bridges require less maintenance
and will last 100 years. Pre-stressed concrete is not a miracle material, is not
an excuse to demolish historic bridges, and it deteriorates just like any bridge
material especially as long as salt is used to deice roads. The Garfield Road
Bridge suggests that pre-stressed concrete is far less long-lived than the steel
and concrete found in many historic bridges.