 Route 181 begins at a cloverleaf interchange with Route 15 in Jefferson Township . Also present at the southern terminus and interchange is <unk> Road , which heads westward towards Lake Hopatcong . Route 181 runs north past several ramps of the interchange , paralleling Route 15 through Jefferson Township . The route winds northwest and reaches the eastern shores of Lake Hopatcong , where it reaches the community of Woodport . 
