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MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
5th Edition
ISBN: 9781305577398
Author: Nicholas J. Garber; Lester A. Hoel
Publisher: Cengage Learning US
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Question
Chapter 16, Problem 11P
To determine
The depth of runoff using
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Students have asked these similar questions
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Question
During a 6-hour storm the rainfall intensity was 0.8 cm/hr on a catchment of area
8.6 km². The measured runoff volume during this period was 2,56, 000 m³. The total
rainfall last due to infiltration, evaporation and transpiration in cm/hr is
A
0.80
0.304
0.496
Sufficient information not available
Runoff occur when precipitation exceeds the soil infiltration rate after the demands for interception and surface storages are fulfilled . Select one :
True
False
Chapter 16 Solutions
MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
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- A 100-acre watershed that is 80% Industrial and 20% newly graded areas (no vegetation). The watershed has soil group B. Determine the runoff volume for 10-year, 24-hr rainfall event (use the IDF below) 20.0 15.0 10.0 8.0 RAINFALL INTENSITY IN INCHES PER HOUR 6.0 4.0 6 0.1 0.08 0.06 0.04 0.02 5 VDOT B, D & E eqn. except for 1-year NOAA Atlas 14 Vienna/Tysons for 1-year 10 15 20 MINUTES SHINE RETURN PERIOD (YEARS) 30 40 50 60 N 10 DURATION NOAA Atlas 14 Vienna/Tysons 2 3 4 5 6 HOURS 8 10 12 سلسلي 18 24arrow_forwardQuestion 8. [2 Points] Create a 60-minute hydrograph for a 10-acre flat lawn covered with yellow bluestem grass on clayey loam soil and the time of concentration = 20 minutes. A 10-year storm frequency is to be considered. Calculate the volume of the storm runoff.arrow_forwardThe use of rational formula assumes that rainfall occurs uniformly over the entire watershed. True or False.arrow_forward
- Calculate the runoff from a watershed of (0.01 x 4737) ha. The following data are available: Depth of rainfall is 100 mm. Antecedent rainfall condition, AMC 1: Row crop, good condition in 40 ha (Soil group C) Woodland, good condition in 20 ha (Soil group B) The day after the rainfall of 100 mm, another rainfall of 50 mm occurred. Solve for the surface runoff from the watershed. [ NOTE: Where R is the last four digits of your Registration Number. R = 4737 ]arrow_forwardplease answer if sure it is correct, will thumbs up if correct.arrow_forwardDetermine the peak runoff (Nearest whole number) from a 100-year storm for the watershed described below: Field 1: 192 acres, 2% slope, cultivated, sandy soil Field 2: 38 acres, 8% slope, pasture, tight clay soil Field 3: 40 acres, 11% slope, woodland, silt soil The drainage way is 4000 feet with a 0.1% slope.arrow_forward
- A 100-acre watershed that is 80% Industrial and 20% newly graded areas (no vegetation). The watershed has soil group B. Determine the runoff volume for 10-year, 24-hr rainfall event (use the IDF below) RAINFALL INTENSITY IN INCHES PER HOUR 20.0 15.0 10.0 8.0 6.0 4.0 0.8 X 0.2 0.1 0.08 0.06 0.04 0.02 II ப____ lud 6 VDOT B, D & E eqn. except for 1-year 10 NOAA Atlas 14 Vienna/Tysons for 1-year 15 20 MINUTES 30 RETURN 40 50 60 EN PERIOD (YEARS) 25 10 DURATION NOAA Atlas 14 Vienna/Tysons 2 3 4 5 6 HOURS 8 10 12 18 24 -arrow_forwardA 220-acre watershed is comprised of 2 distinct areas: 40% cultivated, flat land- tight day 50% cultivated, flat land-sandy loam. The time for concentration in this watershed has been found to be 90 minutes. Water flows to the center of the two drainage areas, not across both. Determine the runoff rate of this area for the 10-year storm?arrow_forward5. Determine the weighted average runoff coefficient, C, and peak runoff rate for a 10-year storm of an 8-acre watershed with 6 acres of grassy ficld of sandy loam with a 6% slope and 2 acres of forest of clay & silt loam with a 22% slope in Manteo, NC? Assume a 10-minute time of concentration.arrow_forward
- Q2) A watershed has the following land use: a- 300 ha of open forest land b- 500 ha of good pasture land c- 200 ha of poor bunded cultivated land The soil is of hydrologic soil group A of 30% and 70% of group C. Estimate the runoff volume for the watershed under an antecedent moisture category III when two days of consecutive rainfall of 0.5 m and 0.7 m occur.arrow_forwarda) Determine the unit hydrograph for Gilmore Creek from the observed runoff (note: the area of the watershed is 8.95 mi?). Assume that this unit hydrograph resulted from a 0.5-hour period of uniform rainfall excess. TIME, hr Q, cfs 12.4 DATE TIME, hr Q, cfs DATE 31-Jul 16 3.92 31-Jul 21.5 22 12 16.5 31 22.5 12 17 1370 17.5 270 23 12 18 100 23.5 11.65 18.5 48 24 11.3 19 34 1-Aug 0.5 10.75 19.5 26.6 1 10.2 20 24 1.5 9.52 20.5 16.9 2 8.85 21 12.8 2.5 8.4 7.96arrow_forwardDon't copyarrow_forward
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