This is the 414th most frequent Icelandic word.
vegagerðarinnar
"The Road Administration's" or "of the Road Administration."
The word 'vegagerðarinnar' refers to the road construction, showing possession and an action affecting the subject.
Vegna vegagerðarinnar þarf bíllinn að aka krókaleið í dag.
Due to the road construction, the car must take a detour today.
'Vegagerðarinnar' here denotes the road authority, indicating an institutional entity.
Við fengum nýjar upplýsingar frá vegagerðarinnar um lokanir á veginum.
We received new information from the road authority about road closures.
In this sentence, 'vegagerðarinnar' represents the administrative organization tasked with managing roads.