Engineering Technology
Walla Walla Community College
ENT 212 – Stormwater Conveyance Systems
INSTRUCTOR:
Ron Rooks, P.E.
CONTACT:
(509) 527-3655
Winter 2016
ronald.rooks@wwcc.edu
OFFICE:
1110 (Technology Center)
8:30 am to 9:20 am TTh
______________________________________________________________________________
TYPE OF COURSE:
The course consists of lectures, assignments, examinations, group
discussions, and field problem solving activities.
CREDIT HOURS:
5 (50 lecture hours)
PREREQUISITES:
ENT 211 (Hydraulics) or instructor permission.
COURSE DESCRIPTION:
Introduction to the fundamental principles of analysis and design
of stormwater conveyance systems.
Emphasis is on the
hydrological cycle, surface water runoff analysis, and the design of
detention systems, conveyance systems, culverts, and stormwater
outlet protection. Formerly CET 166.
COURSE OBJECTIVES:
Upon completion of this course, the student will be able to
understand and apply the basic concepts of the following:
 Calculate open and closed channel flows using Manning’s
equation
 Solve problems involving weirs and orifices
 Solve problems involving controlled water systems
 Identify the hydrological cycle and causes
 Calculate stormwater runoff quantities using the Rational and
NRCS methods.
 Explain concepts of time of concentration, Manning's
equation, storm frequencies, and storm intensities
 Calculate pipe and culvert sizes for stormwater conveyance
 Compute runoff hydrographs
 Design stormwater conveyance systems
 Design rip rap protection
COURSE TOPICS:
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Printed: 2/9/16
Flow measurement in orifices, weirs, pipes, and open
channels
Backwater profiles and hydraulic jumps
Drainage basins
Time of Concentration
Characterization of surface types
Application of Manning’s equation
Page 1 of 4
Engineering Technology
Walla Walla Community College
ENT 212 – Stormwater Conveyance Systems

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Winter 2016
Rational Method of stormwater analysis
NRCS Method of stormwater analysis
Conveyance system design
Rip rap protection design
REFERENCE TEXT:
Introduction to Hydraulics and Hydrology with Applications for
Stormwater Management, 4th Edition by John E. Gribbin
OTHER MATERIALS:
The following materials are required for this course:

3-ring binder with dividers

Engineering computation paper, straight edge, engineer scale,
protractor, pencil, and eraser.

Scientific Calculator

A copy of the Instructor’s Engineering Course Guidelines.
Syllabus requirements take precedence if a conflict arises.

Reliable access to CANVAS
PORTFOLIOS:
Assignments should be organized in a portfolio as a professional
practice. Recommendations for doing so are provided in
“PORTFOLIO GUIDELINES” that follow.
FIELD WORK:
The student shall attend the site visit of all assignments involving
field work. Absences: Excused (10% deduction), UN-excused (20%
deduction) – no exceptions
EVALUATION SUMMARY:
Evaluation of the student’s final grade will be based upon the
following components and their assigned proportion. See “FINAL
GRADE” below for final grade. Additionally, one must complete the
final two assignments and pass the Final Examination in order to
pass the course.
Component
Homework:
Chapter Examinations:
Final Examination:
TOTAL:
Attendance Bonus:
Printed: 2/9/16
Total Points
430
420
150
1000
20
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Engineering Technology
Walla Walla Community College
ENT 212 – Stormwater Conveyance Systems
DATE
1
2
3
4
5
6
7
4-Jan
5-Jan
6-Jan
7-Jan
8-Jan
11-Jan
12-Jan
13-Jan
14-Jan
15-Jan
18-Jan
19-Jan
20-Jan
21-Jan
22-Jan
25-Jan
26-Jan
27-Jan
28-Jan
29-Jan
1-Feb
2-Feb
3-Feb
4-Feb
5-Feb
8-Feb
9-Feb
10-Feb
11-Feb
12-Feb
15-Feb
16-Feb
17-Feb
18-Feb
19-Feb
CHAPTER
LECTURE SCHEDULE**
Winter 2016
ASSIGNMENT DUE **
No.
Exercises
INTRODUCTION
5
Hydraulic Devices
weirs, orifices, siphons
6
Open Channel Hydraulics
channel types, normal and critical depth
7
5
6
Uniform Flow in Channels
Manning’s equation
8
Varied Flow in Channels
7
Backwater profile, hydraulic jump
Problem Solving
8
HOLIDAY - MARTIN LUTHER KING DAY
9
Culvert Hydraulics
Inlet control
9a
Outlet control
REVIEW
9b
EXAMINATION 1
10.1
Hydrological cycle
10.2/10.7 Drainage Area/Subbasins
Practice: 10.7; delineate basins
10.3
Time of Concentration
10.4
Rainfall
10a
10b
10.5/10.6 Runoff Hydrographs/Routing
Problem Solving
10c
REVIEW
10d
EXAMINATION 2
11.1/11.2 RUNOFF CALCULATIONS; Rational Method/Modified Rational Method
Problem Solving
Problem Solving
11a
11.3/11.4 NRCS Method/NRCS vs. Rational Methods
Printed: 2/9/16
Practice: 11.16
11b
HOLIDAY - PRESIDENT'S DAY
Practice: 11.18
11d
Practice: 11.20 or 11.21
REVIEW
11e
EXAMINATION 3
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Engineering Technology
Walla Walla Community College
ENT 212 – Stormwater Conveyance Systems
DATE
CHAPTER
LECTURE SCHEDULE**
Winter 2016
ASSIGNMENT DUE **
No.
Exercises
22-Feb 12.1-12.3 STORM SEWER DESIGN - Fund. Concepts/Design Invest./System Layout
12.5
Storm Sewer Outfalls; Practice: 12.2
23-Feb
8 24-Feb
Spreadsheet Usage, Begin 12.4
12a
(Continued)
12b
25-Feb
QUIZ 4
26-Feb
29-Feb 12.4/12.6 Hydraulic Design/Case Study
Problem Solving
1-Mar
9 2-Mar
Problem Solving
12c
12d
3-Mar 13.1/13.2 CULVERT DESIGN - Fund. Concepts/Design Invest.
QUIZ 5
4-Mar
7-Mar 13.3/13.5 Design of New Culvert/Case Study
Problem Solving
8-Mar
10 9-Mar
Problem Solving
13a
13.4
Culvert Replacement
13b
10-Mar
QUIZ 6
11-Mar
REVIEW
14-Mar
REVIEW
15-Mar
11 16-Mar
No Class
No Class
17-Mar
FINAL (11:30 am to 1:30 pm)
18-Mar
** Subject to change to class needs at the Instructor's discretion
Printed: 2/9/16
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