Calculate the net present value for the following alternative using an analysis period of 30 years and a rate of return of 3%. For calculating salvage value, assume linear depreciation over 12 years. The initial construction cost is $1,000,000 with some preventive maintenance work plan at years 8 and 16 at $100,000. An overlay is planned at year 24 at a cost of $500,000. During construction, maintenance and overlay construction, the public experience the following delay costs: 1) construction: $300,000;2 ) maintenance: $40,000 and 3 ) overlay construction: $150,000