8. A culvert is designed for a 10-year peak rate of flow. What is the probability...
Does a 60” RCP culvert work for the 25 year flow rate design controls and prevent flooding of the critical structure given the following conditions: 200’ long culvert @0.30%. Invert elevation at tail end of pipe = 10.00. ODOT ½ headwall. Pavement elevation = 17.95. Critical Structure FFE = 18.65. Q25 = 140 cfs, Q50 = 172 cfs, TW25 = 2.5’ TW50 = 2.9’
0.020) to carry a flow of200 10. Determine the required diameter do of a circular corrugated metal culvert (n cfs. The length of the culvert is 150 feet. The slope of the culvert is 0.003 ft/ft. A bell mouth entrance in a concrete headwall is used at inlet. The maximum allowable headwater depth is 2.5do and the tailwater depth y is 1.25do. Identify the flow conditions which govern performance. 0.020) to carry a flow of200 10. Determine the required diameter...
A storm culvert pipe of 30m has an incoming flow rate of 1210560 litres an hour. The pipe is 900mm in diameter what will the m/s be for discharge at 80% capacity of the pipe.
001 10.0 points Seventeen years ago, Susan designed a corru- gated steel culvert for a rural road. Her work was accepted and paid for by the county engi- neering department. Last winter, the culvert collapsed as a loaded logging truck passed over. Although there were no injuries, there was damage to the truck and roadway, and the county tried unsuccessfully to collect on Susan's company's bond. The judge denied the claim on the basis that the work was done too...
A) What is the present value of this cash flow at 8% discount rate? B) What is the present value of this cash flow at 14% discount rate? C) What is the present value of this cash flow at 27% discount rate? Different cash flow. Given the following cash inflow, what is the present value of this cash flow at 8%, 14%, and 27% discount rates? Year 1 Year 2: Years 3 through 7: Year 8: $1,000 $5,000 $0 $25,000
Problem1 A recreational park is built near a stream. The stream channel can carry 200 m3/s, which is the peak flow of the 5-yr. storm of the watershed. Find the following: (a) The probability that the park will be flooded next year. (b) The probability that the park will be flooded at least once in the next 10 years (c) The probability that the park will be flooded 3 times in the next 10 years. (d) The probability that the...
A- What is the present equivalent of the following cash flow? Assume interest rate is 8%. B- Imagine you have some rich cousin who looks down at you. She thinks you are incapable of managing your own affairs and talks you into supplementing some form of future retirement income through some individual retirement plan. You are supposed to retire in 15 years. You have to make 15 annual deposits into your account until you retire. The first deposit is $10K,...
What is the interest rate at the end of year 7 at 4%, 10% and 14% ??? Different cash flow. Given the following cash inflow at the end of each year, what is the future value of this cash flow at 4%, 10%, and 14% interest rates at the end of year 7? Year 1 Year 2: Year 3 Years 4 through 6: Year 7: $13,000 $22,000 $31,000 $0 $140,000 What is the future value of this cash flow at...
11.14 The peak-flow data on an annual basis from Cedar River near Austin, MN, are listed in the following table. Plot the flood-frequency curve on lognormal probability paper. Determine the (a) magnitude of a flood having a return period of 100 years (probability of 1%), and (b) probability of a flow of 100 cfs. Peak- flow cfs 7750 5440 Peak- flow cfs Peak- flow cfs Peak- flow cfs Year Year Year 1991 979 3880 2003 8690 1992 2004 3580 1993...
primary clarifier is to be designed for a municipal wastewater treatment plant with a flow of 4160 m/d and peak flow during the day of 3.10 times the average hourly flow. Pertinent data are: peak overflow rate 73.3 m/d.-m2, maximum peak weir loading 373 m3/d-m, and minimum tank depth 2.13 m. Determine: A. The clarifier diameter B. The side water deptlh C. The peak weir loading. Is it acceptable? D. The percent suspended solids removal on the basis of the...