What return period a Municipal Engineer should adopt in the design of a culvert on a drain, if he is willing to accept only a 10% risk of being flooded during the 25 years of the expected life of the culvert? [238 yr]

What return period a Municipal Engineer should adopt in the design of a culvert on a drain, if he is willing to accept only a 10% risk of being flooded during the 25 years of the expected life of the culvert? [238 yr]

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter16: Highway Drainage

Section: Chapter Questions

Problem 19P

See similar textbooks

Related questions

Q: ABC is a circular sector with a central angle of 40' at its center at. BC is an arc. From point B, a…

Q: 1.) Midspan deflection 30 30 5 10

Q: 2.25 m/s discharge of depth 1.3 m flows in a 4.0 m wide rectangular channel. Determine the state of…

Q: 2 RN/m The nails are on both sides of the beam and each can resist a shear of 2 kN. In Idition to…

Q: Determine the following considering the section given in Problem no 2 and Live load = 450lb/ft,…

Q: The figure shows a roof truss and the detail of connection at joint B. The allowable stresses are 70…

Q: 2.) At the left end 30 12

Q: A built-up I-section is composed of two 10" x 3/8" flange plates welded to a 12" x 1/4" web plate.…

A: For given condition effective length of column is 2L And radius of gyration r= sq. root( I/A)

Q: A hydrographic survey was conducted on a reservoir to determine its capacity by contour method. The…

A: To Determine Total number of contours that can be drawn.

Q: The moist density of a soil sample is 1650 kg/m, its specific gravity is 2.64, and its moisture…

A: Given data : The value of moisture content w=32100=0.32 The value of moist density ρ=1650 kg/m3 To…

Q: Problem 3: For the weightless truss shown, calculate the vertical displacement of point c under the…

A: P = 10kip

Q: stadia measurement was undertaken with a theodolite having an internal focusing telescope and a…

Q: •In a link budget calculation at 12 GHz, the free space loss is 206 dB, the APL is 1 dB, AA is 2 dB.…

A: Given, Free space loss =206 dB RFL=1 dB APL=1 dB AA=1 dB PL=2 dB Equivalent isotropic radiated power…

Q: Find the area of a piece of land with an irregular boundary as follows: STA. Offset Distance (m) 0 +…

Q: disposal site. Find the haul-speed constants a and b and the round-trip haul time for a site that is…

A: The basic haul-speed equation is given by y=xa+bx and this is the equation of a rectangular…

Q: A rectangular sedimentation tank has dimensional proportions of 10:1:3 (L:W:H). If sedimentation is…

Q: Convert 270 degrees to grads. Select one: O a. 200 grads O b. 180 grads O c. 250 grads O d. 300…

A: GIVEN: Convert 270 degrees to grads. Select one: a) 200 grads b) 180 grads c) 250 grads d) 300 grads…

Q: Determine the Hydraulic radius if area oc channel is 20 m2 and wetted perimeter is 14 m

A: Given Area 20m^2 Wetted perimeter 14m Hydraulic radius ?

Q: Fo B - P 800 mm C -600 mm

Q: 10-3. Determine the sum of the following sound levels (all in dB): 68, 82, 76, 68, 74, and 81.…

Q: A hydrographic survey was conducted for the purpose of locating channel depths. The survey party…

A: Leveling is the process of calculating the reduced level of a point either on earth or above or…

Q: Determine the design shear strength of the given shape, using

Q: The hemispherical dome in weighs 36.9 kN and is filled with water and attached to the floor by 6…

A: Calculate force in each bolt,F=?

Q: Problem # 4: The tank with cross-section shown is fabricated from steel plate. Determine the minimum…

Q: A clay fill has a bulk density of 1.9 g/cc. If the moisture content is 17.8% find the dry unit

Q: A steel marine propeller shaft 14 in. in diameter and 18 ft long is used to transmit 5000 hp at 189…

A: Given data, Shaft diameter D = 14 in. Length L = 18 feet N = 189 rpm Power P = 5000 hp G = 12×10^6…

Q: Are both of these graphs below or above the x axis?

A: Data Given: Asked: Shear Force and Bending Moment Diagram

Q: =60 degrees to the vertical, is supported by a pin at B and the 0.75in. diameter steel bar AC.(a)…

Q: Find the value of shear force if maximum shear stress 4 N/mm2 and cross sectional area of…

A: To Determine Value of Shear force, V

Q: A small town has been divided into three traffic zones. An origin-destination survey was conducted…

A: Trip generating is the process of deciding to travel for a certain purpose. Based on the…

Q: Given data : Void ratio=0.32 Degree of saturation=0.07 Specific gravity=2.7 Find water content

A: Given data : The value of void ratio e=0.32 The value of degree of saturation S=0.07 The value of…

Q: One machine has a setup cost of $400 and a unit cost of $1.50, and another machine has a setup cost…

Q: A. In the transit business, a rule of thumb suggests that for every 1% rise in fares, ridership will…

A: Fare1 = 7 Fare2 = 9 Ridership1 = 3500 Let ridership2 be x

Q: The following readings have been made outside the open stage door of the pera house: 109 dBA, 110…

A: All three sound level reading are close together and emits noise in the frequency range above 500…

Q: reverse curve connects two hich converged at an angle rection of the second tange ast which is…

Q: Piezometer Reservoir A Elevation 100 ft Reservoir C Elevation 80 ft Reservoir B Elevation 80 t…

A: Given that, Hazen William's equation with C1=120. Using Hazen William's equation velocity…

Q: The light rigid bar ABCD shown is pinned at C and connected to two vertical rods. The bar was…

Q: 2. A bird wants to fly directly from Tree 1 to Tree 2. Tree 2 is 100m to the east (positive x-…

A: S = 100m

Q: 2kN/m 3- The nails are on both sides of the beam and each can resist a shear of 2 kN. In addition to…

Q: A cofferdam has to be built in a river to withstand four consecutive flood seasons (i.e., 4 years)…

A: Qmax (during 30 years) = 8000

Q: 1.) When will you start renting the sound equipment? a. April 22 b. April 21 c. April 20 d.…

Q: a.) Determine the average flow or arrival rate b.) Determine the probability that one, two, three,…

Q: Given data : Friction force=120 N Normal force=200 N Find coefficient of friction

Q: The given data were obtained from a hydrographic survey notes. Line AB was established along the…

A: To Determine Distance from P to A (AP)

Q: g a distance to the

Q: Q1-10: There is a sluice gate at upstream section of 3.5 m wide rectangular channel (see below…

Q: A rectangular beam is supported at both ends. It carries two concentrated load of 30KN, a clockwise…

Q: The beam shown is hinged at one end. It is supported by two steel rods of equal length of 1.5m.…

Q: A smooth vertical wall 4 m retains cohesive soil backfill with c= 10 kN/m?. $ = 0 and y = 18 kN/m2.…

Q: For the truss loaded as shown, calculate the axial stress developed in members CD, ND and NK. Use…

A: To find stress in NKND,CD

Concept explainers

Concepts of Flood Control

Flooding is a temporary overflow of water that submerges or covers the the usually dry land. It can also be defined as the overflow of the excess amount of water that covers a huge area of land which is normally dry.

Question

HYDROLOGY

FLOOD ESTIMATION AND CONTROL

What return period a Municipal Engineer should adopt in the design of a culvert on a drain, if he
is willing to accept only a 10% risk of being flooded during the 25 years of the expected life of the
culvert?
[238 yr]

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

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

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

Q4// A culvert has been designed for a 75-year exceedance interval. What is the probability that exactly one flood of the design capacity will occur in the 100-year lifetime of the structure? Hint!!
1. What is the chance that the culvert designed for an event of 95-year return period will have its capacity exceeded at least once in 50 years?
Which one of these processes is considered losses in the sub - surface flow ? A- Groundwater flow. B- Runoff. C- Infiltration. D- Sub surface outflow. What is the correct answer?? C-
10. How would you determine the gap flow (i.e. major drainage system design flow) for an ARI = 100 years, taking into consideration that the minor drainage system which was designed for an ARI= 5 years is fully operational (i.e. unblocked-blockage is never an issue).
A culvert is designed for a flood frequency of 100 years and a useful life of 20 years. The risk involved in the design of the culvert is in percentage?
Problem 1: A new building site is very flat and, to avoid excessive excava- tion and possibly the need to pump, the sewers are to be designed for the minimum grades possible while still achieving a self- cleansing velocity of 0.65 m/s at peak flow. At the beginning of the development the flow is estimated to be 10 1/s at daily peak and, in the future, this will rise to 40 1/s. Assume k, 0.6 mm and determine an acceptable pipe size and grade.
You are responsible for calculating the peak discharge for a culvert design in a smallwatershed in Washington, DC. The watershed area is 4 acres and currently has 30 % of its area ofindustrial (heavy areas) and 70 % of residential (single –family areas). The design manual suggestsyou design your culvert for a 10 return period. The watershed has a concentration time of2 hours. Calculate:a) What is the design peak flow?b) What is the impact of the runoff coefficient (C) range on your design?c) After you implemented your project, the residential area was entirely converted toindustrial areas. Would that affect you design? If yes, by how much?
In a circular sewer 15 ft in diameter, flowing nearly full, the water surface is 8 ft. in width. The sewer is laid on a grade of 26.92 ft. per 2 mile; compute its discharge in cfs using Manning’s Formula. n = 0.056 Round your answer to 2 decimal places.
What effect do such losses have on your initial analysis of full-flow discharge? What other loss elements should be considered in the analysis? What value is there in your initial discharge analysis?
5.(c) A circular sewer is to be designed to carry maximum flow of sewage while flowing 70% full at a velocity of 1m/sec. If the ratio of maximum/average flow is 3 and average/minimum is also 3, find (i) Full flow velocity (ii) Velocities generated, both at the average flow as well as minimum flow. Neglect the variation of N with depth of flow and take q V Q V 0.337 0.902 0.196 0.776 0.088 0.615
|Q3|// Irrigation water is conveyed from a reservoir to an irrigation project through an earthen 10 km length of the channel at a rate of 25 m²/sec, the seepage losses from the [1] m /sec channel were estimated to be 0.1 The depth of irrigation water to be applied is km 10 cm, and the water is supplied to the field one day per irrigation. Determine: - The discharge applied from the farm gate, Efficiency of conveyance Ec, efficiency of irrigation Ea, and the water losses in field. Assume that losses in the field occurred after (two-third) of the time of irrigation.
Since your team is doing such an outstanding job for your client, they requested a preliminary evaluation to estimate flow under the highway considering the implementation of a masterplan for the entire watershed that drains to the roadway. Your team developed the unit hydrograph below for a 1 hour storm duration. Calculate the watershed response to the hyetograph provided and provide the total peak flow (cfs). Table 1. Effective Precipitation Time [hr] P [in.] 1 0.5 2 2.5 Table 2. Unit Hydrograph Time [hr] QUH [cfs] 0 0 1 400 2 1600 3 800 4 0