Discharge, cuble foot par secand and USGS 2 Cherry Creek is 25 ft wide and 0.6 ft deep for 500 ft upstream from the truck shown in the photo. The hydrograph shows discharge [cfs] = [ft³/s] versus time. Water temperature is 50°F. USGS 06713500 CHERRY CREEK AT DENVER, CO. 2000 2008 2000 Median daily statistic (8 years)Period of approved data Discharge 2 2000 Apr 2000 2000 2000

Structural Analysis
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Chapter2: Loads On Structures
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Discharge, cuble foot par secand
USGS
2
Cherry Creek is 25 ft wide and 0.6 ft
deep for 500 ft upstream from the
truck shown in the photo. The
hydrograph shows discharge [cfs] =
[ft³/s] versus time. Water temperature is 50°F.
USGS 06713500 CHERRY CREEK AT DENVER, CO.
2000
i)
ii)
2000
2000
Median daily statistic (8 years)Period of approved data
Discharge
2008
2900
2
Ppr
Part A
According to the chart, what is the discharge on Sunday 4/6/2008 in [ft³/s]?
Part B
What is the Reynolds number for this flow, based on the depth?
Part D
Hint: The hydrograph has a logarithmic y-axis, which explains the uneven spacing between
horizontal grid lines.
At that time, what is the average velocity in the stream at the location shown?
Part C
2000
2000
Imagine there is an illegal discharge adding 1 gal/min of untreated sewage 7,000 ft upstream
from the location shown. Based on your answer to Part C, explain why you would (or would not)
expect the sewage to be uniformly blended into the stream water at the location shown.
Part E
Indicate the most appropriate choice, considering the 500 ft upstream from the truck, and the
time period of 4/2/2008 through 4/9/2008:
Steady or unsteady?
Uniform or nonuniform?
Transcribed Image Text:Discharge, cuble foot par secand USGS 2 Cherry Creek is 25 ft wide and 0.6 ft deep for 500 ft upstream from the truck shown in the photo. The hydrograph shows discharge [cfs] = [ft³/s] versus time. Water temperature is 50°F. USGS 06713500 CHERRY CREEK AT DENVER, CO. 2000 i) ii) 2000 2000 Median daily statistic (8 years)Period of approved data Discharge 2008 2900 2 Ppr Part A According to the chart, what is the discharge on Sunday 4/6/2008 in [ft³/s]? Part B What is the Reynolds number for this flow, based on the depth? Part D Hint: The hydrograph has a logarithmic y-axis, which explains the uneven spacing between horizontal grid lines. At that time, what is the average velocity in the stream at the location shown? Part C 2000 2000 Imagine there is an illegal discharge adding 1 gal/min of untreated sewage 7,000 ft upstream from the location shown. Based on your answer to Part C, explain why you would (or would not) expect the sewage to be uniformly blended into the stream water at the location shown. Part E Indicate the most appropriate choice, considering the 500 ft upstream from the truck, and the time period of 4/2/2008 through 4/9/2008: Steady or unsteady? Uniform or nonuniform?
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