Port Huron, Inc is investing in a toll bridge. It requires $5,000 investments now to retrofit the bridge with automatic toll collections machines. They expect the following Cash flows for the next 6 years, after which the bridge becomes toll-free. The relevant WACC is 12.0%. CF1 = 1,000 CF2 = 2,000 CF3 = 3,000 CF4 = 3,000 CF5 = 3,000 CF6 = 3,000 What is the Discounted Payback Period?