Military.com has some information on the Coast Guard budget.
“Overall, the Coast Guard budgeted $7.8 billion for operating expenses, including pay; $1.9 billion to recapitalize equipment; and $1.9 billion in mandatory spending and fees.”
It includes $750M for the first new heavy icebreaker; $400M for the second OPC and long lead time items for the third; and $240M for four Webber class.

Some more detail here. http://seapowermagazine.org/stories/20180213-CGBudget.html
More here: http://www.businessinsider.com/coast-guard-new-heavy-icebreaker-2019-budget-2018-2