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: the answer as soon as

A: Given data- Discharge (Q) = 15000m³/day = 15000m³/24hr = 625m³/hr Detention…

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: A bridge is to be constructed over a river for a design flood of 500 m/s. The mean and the standard…

A: The given data is as follows:

Q: Question-A The channel index at irrigation outlet is 5/3. Find the value of setting for an orifice…

A: Given data- Channel Index = 5/3Orifice type outletTo Find-The value of setting

Q: 18. A treatment plant operates with two primary clarifiers, both 27.5 m in diameter and having 3 m…

Q: time of concentration for

A: Using manning equation

Q: HELP ME ASAP PLS Consider: Round off to three (3) decimal places Answer properly 9. The catchment of…

Q: Answer question 1

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

Q: Q7: A discharge of 0.15 cumecs is supplied into a canal at the head and 0.1 cumecs is delivered to…

A: From the given date it is required to find the various types of irrigation efficiencies like…

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: Design a circular sedimentation tank to treat 2500 m3 of raw water per day. The retention period…

A: The drinking water is treated with different methods based on the type of impurities in the water…

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: A catchment area 5000 km². In one day, the depth of precipitation is 55mm, Evapotranspiration is 0.8…

A: From given data: A=5000 km2=5×109 m2Vpresipitation=dpresipitation×A=0.055 m×5×109 m2=275×106…

Q: Q. If the discharge required for different crops grown in field is 0.5 cumec, the time factor and…

A: To find: Distributary design discharge

Q: Compute the location of the first gutter inlet from the crest, considering the following…

A: For using the problem we can use the following equation which is Q=KIA Where Q= Is the discharge…

Q: A distributary channel having bed width 5.00 m and full supply depth of 1.50 m carries 3.0 m3/s of…

Q: (i) Calculate and evaluate the detention time loading in compliance with standard practice given…

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

A: Given, A = 10 km2 or 1000 ha L = 1420 m S = 0.005 C = 0.30

Q: (d)(i) A water treatment plant is to treat water at the rate of 6000 m³/day. If there are two…

A: Given data- Q=6000 m3/daydimensions-L×B×H=27×5×3.8 mLength of the weir L=50 mNumber of tanks n=2

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: A catchment area 5000 km2. In one day, the depth of precipitation is 55mm, Evapotranspiration is 0.8…

Q: 21) A water treatment plant treats 12000 m/d of raw water by using three rectangular clarifiers,…

A: Given, Flow= 12,000 m³/day We have 3 Rectangular Clarifiers. Each clarifier dimensions: 25m×5m×4m…

Q: A rectangular clarifier of 30 m length, 10 m width and 4 m depth is provided with a detention time…

Q: Q2. Direct runoff hydrograph and catchment area The outflow hydrograph from the storm in Q1 is as…

A: Data is as given below

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

Q: We are to determine the seepage (infiltration) in a 250 hectare reservoir. The reservoir has 0.50…

A: Given, A = 250 ha or 2500000 m2 Qin = 0.50 m3/s Qout = 0.30 m3/s Qi = 0.10 m3/s P = 20 mm or 0.02m…

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: Use TR-55 graphical method to compute the peak discharge for a 250-ac watershed, with 25-y 24-h…

Q: initial capacity of 25,000 acre-ft if the average annual inflow is 40,000 acre-ft ,The useful life…

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: Assessing Potential Water Quality Impacts on Infiltration The EC and SAR of Canal water are 0.05…

A: Given, EC = 0.05 dS/m SAR = 0.6

Q: Estimate the head over a Cipolleti weir of base width 0.90 m required to pass a discharge of 600…

Q: A circular sedimentation tank is to be designed for a flow of 50 million itre per day and the…

A: Flow = Q = 50,000,000 litre/day Over flow rate = V = 25 m3/m2.day It has been asked in the…

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

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

A: Detention time (t) t = (Volume of tank) / ( Rate of flow through the tank) t= V/Q Volume of one tank…

Q: In a wastewater treatment plant, primary sedimentation tank (PST) designed at an overflow rate of…

A: Hello dear this is the solution of your problem Please see the attached solution, thanks

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: The min and peak sewage flows are 2500 m³/day 25000 m³/day with an Qavg of 7500m/day at the bumping…

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

1- for wide and deep reservoirs, the peak outflow occurs when: a- outflow hydrograph intersccts the inflow hydrograph b- at time of N days lıydrograph is higher tlan inflow hydrograph c- there is a high flood d- outflow e- all are false 2- The flood routing using Muskingum method considers storage as a function of: a- inflow b- outflow c-both inflow and outflow d- size of the channel e-all are false
16
A community receives 0.50 m³/s of flow into its wastewater treatment plant. The total surface area of the primary clarifiers is 2,700 m² and the retention time is 3 h. Find the overflow rate and the depth of the clarifiers.
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
a. What is the inflow? b. What is the outflow?
1. A 2 hr. UH is shown below Time (hr.) Discharge (m³/sec.) 1 5 2 15 12 3 4 10 5 6 If a storm of 4.2 cm. occurs in 2 hr. duration over the catchment and ø - index is 0.80 cm/hr., Calculate The maximum discharge of the resulting DRH (i) The maximum flood discharge if the base flow is 7 m/sec. (ii)
i need the answer quickly
Determine the conversion factor C for a Cipolletti weir if the unit for L and H is in centimeter and Q is in liters per second.
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
initial capacity of 25,000 acre-ft if the average annual inflow is 40,000 acre-ft ,The useful life of the reservoir will terminate when 75 percent of its initial capacity is filled with sediment. Capacity inflow ratio for orange layer is Select one: O A. 0.468 O B. 0.625 O C. 0.38 O D. 0.58