Three Rivers Community College

Anthony Benoit/TV 205

ENV 2230 Water Resources Engineering

(860) 885-2386

Fall 2006 (Th 5:30-9:50 pm; other hours as agreed)


Here's an informal and approximate schedule of what we will cover. Timing and topics are subject to change with notice.

Week of:





Introduction-The Hydrological Cycle

chap 1




chap 4



Statistical Concepts, Frequency Analysis

chap 2, 5.0-5.3

HW #1 due


Frequency Analysis (continued)




Review of what we’ve learned so far


HW #2 due 


Watershed Characteristics

chap 3

Quiz 1 due


Peak Discharge Estimation--Rational Method

sec 7.0-7.3, 7.6



Peak Discharge Estimation--TR-55 methods

sec 7.7-7.8

HW #3 due



chap 9



Hydrologic Design/Stormwater Management

chap 8 

Mid-term due


Stormwater (continued)




Subsurface Hydrology, Soil/Water Relationships

chap 6



****No Class****




Subsurface (continued)


HW #4 due


Erosion & Sedimentation


Quiz 2 due


Final Exam



Text: McCuen, 2005, Hydrologic analysis and design, 3rd Ed., Pearson/Prentice-Hall

Point Breakdown:


Quizzes 1

10 points each

Homework assignments

5 points each

Lab exercises

15 points

Class participation*

10 points

*Includes attendance, discussion, participation in special projects, tidbits of info (eg, news clippings) and courtesy toward your classmates & instructor.

Quizzes and the mid-term will be take-home. Final will be in class. If quizzes or reports are handed in late, they may be marked down or not marked. If homework is handed in late, it may get a zero grade. If you miss a class, please make an effort to get the missed information from another student. But everyone who works hard, comes to class, pays attention and gets any needed extra help will do well.

Revised 8/31/06

Here's a more formal (official) list of topics and outcomes:

Course Number/Title: ENV* K245/Water Resources Engineering (replaced CIV 2210 and ENV 2110) 

Lecture 3 hrs Laboratory 0 hrs Credit 3 hrs Contact 3 hrs

Course Description: An overview of the study of water in the environment. Topics include weather and the water cycle, watersheds and surface water, streamflow, hydrographs, groundwater and the impact of human activities on water.

Method: Lecture, class and home exercises, led discussion

Text: Hydrologic Analysis and Design, 3d Edition, McCuen, Prentice Hall; handouts

Prerequisites: MAT* K137 or MAT* K186
Corequisite: ENV* K245L


  1. The water cycle, 6 hours
    1. the hydrologic budget
    2. runoff vs infiltration
    3. hydrological analysis
    4. flow, volume, and depth calculations
  2. Statistical concepts, 1 hour
    1. descriptive stats
    2. normal distribution
  3. Watersheds, 3 hours
    1. definition
    2. drainage area
    3. basin shape
    4. drainage shape
    5. flow computations
    6. effects of land use
  4. Frequency analysis, 4 hours
    1. return period
    2. frequency curves
    3. calculating extreme values
  5. Precipitation, 4 hours
    1. weather and rainfall
    2. rainfall characteristics
    3. point and average precipitation methods
    4. storm parameters
    5. use of rainfall data
    6. IDF curves and tables of rainfall frequency
  6. Soil/water relationships, 3 hours
    1. porosity
    2. water content
    3. density
  7. Peak discharge analysis and design, 5 hours
    1. terms & concepts
    2. the Rational Method
    3. Soil Conservation Service (SCS)Rainfall-Runoff Depth Relation
    4. TR-55
  8. Hydrograph analysis and synthesis, 5 hours
    1. terms
    2. use of hydrographs
    3. SCS unit hydrograph method
  9. Stormwater management, 6 hours
    1. detention volumes
    2. outlet structures
    3. risers
  10. Groundwater hydrology, 6 hours
    1. infiltration
    2. soil and substrate characteristics
    3. Darcy’s law
    4. subsurface flow
    5. wells
    6. groundwater contamination
    7. unsaturated flow
  11. Erosion and sedimentation, 2 hours
    1. physical processes
    2. channel profiles
    3. sediment transport


Measurable Objectives

Students will be able to:

  1. sketch the hydrologic cycle
  2. use a water balance to estimate inflow or outflow, change in storage, depth change, evaporation, or other flux
  3. use an IDF curve to predict rainfall volume and intensity
  4. use linear/normal or log/normal graph paper to carry out frequency analysis
  5. calculate point and average areal precipitation amounts
  6. describe the effect of watershed characteristics on surface water flows and infiltration
  7. calculate soil porosity, water content, and density
  8. use Manning's equation to calculate velocity and flow rate, solve Manning's equation for depth or other variable
  9. estimate time of concentration
  10. look up CN values or runoff coefficients (C) based on soil group and land cover
  11. calculate weighted average CN or C values
  12. use the Rational Method and the SCS Graphical Peak Discharge Method to estimate peak flows
  13. draw a direct runoff hydrograph using the SCS method and use the hydrograph to estimate peak flow
  14. calculate storage volume requirements
  15. estimate control structure (riser) requirements
  16. calculate flow rate from control structure dimensions, velocity and area or tracer data
  17. describe erosion and sedimentation processes
  18. use Darcy's Law to estimate groundwater flow rate and velocity or to estimate soil permeability based on flow data
  19. draw and describe unconfined and confined aquifers
  20. estimate aquifer values based on well pumping data