BIE 5300/6300 Assignment #7
Earthen Canal Design
28 Oct 04 (due 2 Nov 04)
Show your calculations in an organized and neat format, including all relevant
calculations. Indicate any assumptions or relevant comments.
Given:
An earthen canal is to be designed
Lecture 28
Safety Considerations
Here lies one whose name was writ in water
John Keats (1821)
I. Introduction
Canals and related infrastructure can be very dangerous to people and animals
People drown in canals, inverted siphons and other facilities every
BIE 5300/6300 Assignment #10
Drop Spillway Design
2 Dec 04 (due 7 Dec 04)
Show your calculations in an organized and neat format. Indicate any
assumptions or relevant comments.
Given:
The design flow rate for an earthen canal is 120.0 cfs.
There is a 7.5-
BIE 6300
Fall Semester 2004
Exam #2 14 Dec 04
Show your work neatly on this or separate pages. Show units for all
calculated values. Make note of any important assumptions.
Name_
An inverted siphon with a single barrel of circular concrete pipe (2.25-ft i
Lecture 14
Flow Measurement in Pipes
I. Elbow Meters
An elbow in a pipe can be used as a flow measuring
device much in the same way as a venturi or orifice plate
The head differential across the elbow (from inside to
outside) is measured, and according to
BIE 5300/6300 Assignment #3
Weir Calculations
24 Sep 04 (due 28 Sep 04)
Show your calculations in an organized and neat format. Indicate any
assumptions or relevant comments.
I.
Hydraulically, what is the difference between a suppressed weir and a
contrac
BIE 5300/6300 Assignment #1
Simple Flow Measurement and Flumes
02 Sep 04 (due 07 Sep 04)
Show your calculations in an organized and neat format. Indicate any
assumptions or relevant comments about each of the problems.
I.
A float test was conducted in a s
BIE 5300/6300 Assignment #2
Current Metering Calculations
09 Sep 04 (due 14 Sep 04)
Show your calculations in an organized and neat format. Indicate any
assumptions or relevant comments.
I.
You are given the electromagnetic current metering measurements b
BIE 5300/6300 Assignment #4
Broad-Crested Weir Calibrations
28 Sep 04 (due 05 Oct 04)
Show your calculations in an organized and neat format. Indicate any
assumptions or relevant comments. You can use ACA or WinFlume if you
like, or you can do calculation
BIE 5300/6300 Assignment #5
Open-Channel Constriction Calibrations
06 Oct 04 (due 12 Oct 04)
Show your calculations in an organized and neat format. Indicate any
assumptions or relevant comments.
You have measured data in a spreadsheet file (attached) for
BIE 5300/6300 Assignment #6
Pipe Flow Measurement
13 Oct 04 (due 18 Oct 04)
Show your calculations in an organized and neat format. Indicate any
assumptions or relevant comments. E-mail the assignment to me, or drop it
by my office, by 12:00 pm Monday, th
BIE 5300/6300
Fall Semester 2004
Irrigation Conveyance & Control:
Flow Measurement & Structure Design
Lecture Notes
Biological & Irrigation Engineering Department
Utah State University, Logan, Utah
Gary P. Merkley
ii
BIE 5300/6300 Lectures
Preface
These l
BIE 5300/6300 Assignment #11
Siphon Spillway Design
7 Dec 04 (due 10 Dec 04)
Show your calculations in an organized, neat format. Indicate any
assumptions and or relevant comments.
Given:
An overflow spillway needs to be designed for a location along a ca
BIE 5300/6300
Fall Semester 2004
Exam #1 19 Oct 04
Show your work neatly on this or separate pages. Show units for
all calculated values. Make note of any important assumptions.
Name_
1. (20 pts) A Cutthroat flume needs to be installed in an irrigation ca
BIE 5300/6300 Assignment #8
Culvert Design
16 Nov 04 (due 23 Nov 04)
Show your calculations in an organized and neat format. Indicate any
assumptions or relevant comments.
Given:
A culvert is to be designed to carry cross-drainage water under a new irriga
Lecture 18
Sample Earthen Channel Designs
I. Example A: Design Procedure for an Earthen Canal
Design an earthen canal section in an alluvial soil such that the wetted
boundaries do not become eroded
The canal will follow the natural terrain at an estimate
Lecture 22
Example Culvert Design
Much of the following is based on the USBR technical publication
Design of Small Canal Structures (1978)
I. An Example Culvert Design
Design a concrete culvert using the procedures given by the USBR (Design of
Small Canal
Lecture 20
Inverted Siphons
Portions of the following were adapted from the USBR
publication Design of Small Canal Structures (1978)
I. Introduction
Siphons, or inverted siphons, are used to convey water across a natural
depression, under a road, or under
Lecture 21
Culvert Design & Analysis
Much of the following is based on the USBR publication:
Design of Small Canal Structures (1978)
I. Cross-Drainage Structures
Cross-drainage is required when a canal will carry water across natural drainage
(runoff) cha
Lecture 17
Design of Earthen Canals
I. General
Much of this information applies in general
to both earthen and lined canals
Attempt to balance cuts and fills to avoid
waste material and or the need for borrow
pits along the canal
It is expensive to move e
Lecture 24
Flumes & Channel Transitions
I. General Characteristics of Flumes
Flumes are often used:
1. Along contours of steep slopes where
minimal excavation is desired
2. On flat terrain where it is desired to
minimize pumping, except perhaps at
the sou
Lecture 25
Design Example for a Channel Transition
I. Introduction
This example will be for a transition from a trapezoidal canal section to a
rectangular flume section
The objective of the transition design is to avoid backwater (GVF) profiles in the
tra
Lecture 19
Canal Linings
I. Reasons for Canal Lining
1.
Installing plastic canal
lining (courtesy R.W. Hill)
To save water (reduce
seepage)
2. To stabilize channel bed
and banks (reduce
erosion)
3. To avoid piping through
and under channel
banks
4. To dec
Lecture 26
Energy Dissipation Structures
I. Introduction
Excess energy should usually be dissipated in such a way as to avoid erosion in
unlined open channels
In this context, excess energy means excess water velocity which causes
erosion and or scouring
Lecture 27
Protective Structures
I. Introduction
Protective structures include energy dissipation and erosion control structures,
structures to divert excess water to prevent over-topping of canals, and others
In this context, protective structures are fo
BIE 5300/6300 Assignment #9
Open-Channel Transition Design
23 Nov 04 (due 2 Dec 04)
Show your calculations in an organized and neat format. Indicate any
assumptions or relevant comments.
Given:
The design flow rate is 20.0 m3/s
The upstream trapezoidal se