A consulting engineer has been engaged to advise a town how best to proceed with the construction of 1 answer below »


A consulting engineer has been chosen to instruct a town how best to income delay the explanation of a 200,000 m3 water provide reservoir. Since barely 120,000 m3 of storage procure be required for the direct 25 years, an alternative to construction the unmeasured capac-. ity now is to plant the reservoir in two stages. Initially, the reservoir could be built delay 120,000 m3 of volume and then, 25 years hence, the appended 80,000 m3 of volume could be added by increasing the crisis of the reservoir. Estimated costs are as follows: