Before the Department of Forests and Waters shall proceed to construct, improve or repair any such road or highway or lane, the Secretary of Forests and Waters shall cause to be prepared a plan or draft of such connecting road or highway or lane, showing concisely the construction, improvement or repair which, in his judgment, is necessary under the provisions of this act, and shall submit such plan or draft to the Governor for his approval before any expenditure of State moneys is authorized for the contemplated construction, improvement or repair.