A 100 m by 25 m detention pond is proposed for a 7.5 ha site. The detention pond is 2 m deepunder control, or pre-storm, conditions and the water-quality depth is 2 cm. Storage in thedetention pond is to be discharged off-site via a triangular weir whose vertex is a the controlelevation, and the flow rate over the weir in m³/s is Q = 0.08H². H is the height of the watersurface above the vertex of the weir in m. The average annual rainfall at the site is 120 cm, andthe average runoff coefficient is 0.75. Determine the evacuation time and the average detentiontime in the pond.

Given:- 100m X 25m detention pond area=7.5ha depth =2m water quality depth =2cm Q=0.08H95/2) To…

nder control, or pre-storm, conditions and the water-quality etention pond is to be discharged off-site via a triangular we evation, and the flow rate over the weir in m³/s is Q = 0.08 urface above the vertex of the weir in m. The average annua

nder control, or pre-storm, conditions and the water-quality etention pond is to be discharged off-site via a triangular we evation, and the flow rate over the weir in m³/s is Q = 0.08 urface above the vertex of the weir in m. The average annua

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: GF Q2: Estimate the peak flowrate for a catchment which has an area of 10 km². The length and slope…

A: Answer We know that peak flow rate is given by Q = A*I*R360 where Q = peak flow rate in m3/sec A =…

Q: Answer question 1

A: Given data in question Volume 125.6 m3 Base area 500 m2 To find out Storage depth

Q: Direction: One hour triangular unit hydrograph of a watershed has the peak discharge of 60 m³/sec.cm…

A: Peak discharge = 60 m3/sec.cm Duration = 10 hrs. Time base 30 hrs. f index = 0.4 cm per hrs. Base…

Q: A water treatment plant is to treat water at the rate of 6000 m3/day. If there are two rectangular -…

A: Rate of water flow Q = 6000m³/day L= 27m, B = 5m C= 3.8m Weir length= 50m No. Of tanks= 2

Q: of 15 m/s, estimate the direct runoff hydrograph (DRH) and the discharge of the 6 -h unit hydrograph…

A: Peak flow Average depth Infiltration loss =0.25 cm/h,Base flow It is required to find the peak…

Q: 4. Given the inlet below, with h=0.5 ft, W=1.5 ft, L=4.0 ft, and a gutter depression depth=0.33 ft,…

A: The value of "h" = 0.5 ft The value of "W" = 1.5 ft The value of "L" = 4 ft The gutter depression…

Q: Q3: A river catchment has a 2.0 hour unit hydrograph with the ordinates 0,3,11,35,55,66,63,40,22,9…

Q: Determine the peak flow of return period 5 years at the outlet D. The IDF equation for the area is:…

Q: average giver (4) n Figure (4). The time of concentration from the lines AA, BB, CC and DD are 1, 2,…

A: Solution: "By considering the above Diagram given in question" The Calculation for discharge at 'O'…

Q: The hydrograph tabulated below is for a river that drains an area of 810 mi?. Plot nydrograph,…

A: Hydrograph is the graph between discharge (y axis) and to duration (x axis) In above problem ,…

Q: A Circular primary sedimentation tank for a municipal WWTP is to be designed for an average flowrate…

Q: roblem I: Figure 1 shows the flow hydrograph from a storm at the watershed outlet. Label the: (1)…

Q: A tannery with a wastewater flow of 0.011 m½ and a BOD; of 590 mg/L discharges into a creek. The…

Q: 3. For a 2 hour, 8 mm/h intensity rainfall, the hydrograph given in Table is observed. The area of…

A: time (hr)024681012141618202224flow rate(m3/sec)81814304538282418141088The area of watershed = 500…

Q: The following data was collected during a 5-hour storm. If the base flow for the stream is 35 m?/s,…

A: Given: Base flow = 35 m3/s Also, Let area of basin = 2 km2

Q: The peak of flood hydrograph due to a 3-hr duration of isolated storm in a catchment is 270 m³/s.…

A: 1. Peak of flood hydrograph: 2. Duration of isolated storm: 3 hours3. Total depth of rainfall: 6…

Q: Questions (3.2) Determine using the 'rational formula' with runoff co-efficient equal to 0.80, the…

Q: A canal irrigates a portion of a culturable command area to grow sugarcane and wheat. The average…

A: The average discharge required to grow sugarcane = 0.36 cumecs The average discharge required to…

Q: A rain depth of 10 inches falls on a developed area of Charleston (CN = 90). Estimate the runoff.…

Q: NaoCI pumping rate, Qss = ( ) L/s? (*No unit) Qin = 8000 GPM Cin = 0.0 mg/L %3D Slip Stream Qss = ?…

A: Solution:- The Given diagram is shown below,

Concept explainers

Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.

Question

A 100 m by 25 m detention pond is proposed for a 7.5 ha site. The detention pond is 2 m deep
under control, or pre-storm, conditions and the water-quality depth is 2 cm. Storage in the
detention pond is to be discharged off-site via a triangular weir whose vertex is a the control
elevation, and the flow rate over the weir in m³/s is Q = 0.08H². H is the height of the water
surface above the vertex of the weir in m. The average annual rainfall at the site is 120 cm, and
the average runoff coefficient is 0.75. Determine the evacuation time and the average detention
time in the pond.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Solution:-

Step 2: Solution:-

Step 3: Solution:-

Solution

Trending now

This is a popular solution!

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

A conventional Wastewater Treatment Plant receives an average daily wastewater flow of 38,000 m2/d. Two circular primary clarifiers, operating in parallel, will treat the flow. Assume that a peripheral effluent weir is used for each clarifier. Consider a detention time of 2 hours and water depth of 4 meters for each clarifier. Determine: a. The diameter (m) of each primary clarifier. b. The weir loading rate (m3/d . m) for each clarifier at average daily flow. c. The expected (not calculated) BODs and Suspended Solids removal efficiencies (%) at an average daily flow rate.
Q1) Stabilization ponds receive a wastewater flow of 350 m³/d with a BOD of 320 mg/l. If the BOD loading is 2.8 g/m²/d calculate the total surface area and storage available between the 0.6 m and 1.5 m depuis assuming a waier loss of 0.27 mm/d during the winter months. winter ALL
The surface runoff hydrograph after the base flow separation is called: * None of the these Direct Runoff Hydrograph (DRH) Base Flow (BF) Discharge (Q) Unit Hydrograph (UH) The total rainfall in a catchment of area 1200 Km2 during a 6-hr storm is 16 cm. The surface runoff is 1.2 *10^8 m3. The infiltration index is: * 1.2 cm/hr 0.1 cm/hr 1 cm/hr cannot be estimated with the given data 0.2 cm/hr
2 %V9 li. 3 (9 This question requires one response per row The base flow for this direct runoff hydrograph is: 0 4 8h o Index = 0.135 cm/h Rainfall excess = 5.52 cm 30 25 20 15 Direct runoff 5.52 cm 10 A Base flow -6 0 12 18 24 30 36 42 48 54 60 66 Time in hours -6 8 5.52 48 Discharge (m/s) 3.26 cm 2.26cm