Naming the Shannon tunnel

What famous Clareman (with Limerick connections) is most closely associated with matters sub-aqua?

John P Holland of course, inventor of the modern submarine.

He was born in Liscannor in 1841 and moved to Limerick in 1853.

Didn't the US Navy call their first submarine, The USS Holland, after him in 1900?

Why not call the tunnel “The Holland Tunnel'‘?

Mattie Lennon, Blessington, Co Wicklow.