The Texas Department of Transportation (TxDOT) is considering two designs for crash barriers along a reconstructed portion of I-10. Design 2B will cost $3 million to install and $128,500 per year to maintain. Design 4R will cost $3.7 million to install and $55,000 per year to maintain. Determine which design should be selected based on a rate of return analysis if TxDOT uses a MARR of 6% per year and a 20-year project period.   The rate of return is  %.   Design           is selected. 4R OR 2B

Beaver, a city in the United States, is attempting to attract a professional soccer team. Beaver is planning to build a new stadium that will cost $240 million. The annual upkeep is expected to amount to $830,000. The turf will have to be replaced every 9 years at a cost of $860,000. Painting every 8 years will cost $88,000. If the city expects to maintain the facility indefinitely, what is the estimated capitalized cost at i = 9% per year? The estimated capitalized cost is $

Waller County is planning to construct a Dam some tens of miles away from the Hempstead Recreation center to facilitate fishing in the El Manny River Basin and Power Generation. The first cost for the Dam will amount to $6,500,000. Annual maintenance and repairs will amount to $24,000 for the first four years, to $28,000 for each year in the next eight years, and to $32,000 per year for the next four years. At the end of the 16th year, $25,000 is estimated to be deposited into Waller county account as tax credits earned for its environmental compliance in the construction and operation of the Dam. In addition a major overhaul costing $650,000 will be required at the end of the seventh year. Use an interest rate of 10% and : a) Determine the engineering economy symbols and their value for each option. b) Construct the cash flow diagram c) Calculate the Capital Recovery for the project

Blue Whale Moving and Storage recently purchased a warehouse building in Santiago. The manager has two good options for moving pallets of stored goods in and around the facility. Alternative 1 includes a 4000-pound capacity, electric forklift (P = $-30,000; n = 12 years; AOC = $-1000 per year; S = $8000), and 500 new pallets at $10 each. The forklift operator's annual salary and indirect benefits are estimated at $32,000. Alternative 2 involves the use of two electric pallet movers ("walkies") each with a 3000-pound capacity (for each mover, P = $-2000; n = 4 years; AOC = $-150 per year; no salvage) and 800 pallets at $10 each. The two operators' salaries and benefits will total $55,000 per year. For both options, new pallets are purchased now and every 2 years that the equipment is in use. (a) If the MARR is 8% per year, select the better alternative.