As the map shows, the Blue Line is not tremendously close to the road adjoining the fence.
But if you don't believe the IDF, here's what Google Maps has to say (click to enlarge)::
Buy EoZ's books!
PROTOCOLS: EXPOSING MODERN ANTISEMITISM
If you want real peace, don't insist on a divided Jerusalem, @USAmbIsrael
The Apartheid charge, the Abraham Accords and the "right side of history"
With Palestinians, there is no need to exaggerate: they really support murdering random Jews
Great news for Yom HaShoah! There are no antisemites!