Spencer is working on behalf of Fraser Crossing Constructors GP - a joint venture between Acciona and Aecon - on the suspension bridge near Vancouver, Canada.
In March, the Welsh government passed a law which from September will see the default speed limit on restricted roads in Wales reduced from 30mph (50kph) to 20mph (32kph).
Construction and civil engineering association EBA says the allocated €103 million will go a long way to shoring up road maintenance requirements on national roads.