CTC 260 LECTURES

Lecture #

Ch.

Subject

Assignment-Posted and dropped off in Brightspace

Lecture 1

3 

Hydrology:  Overview & Definitions

Significant digits 

Lecture 2

3

Watersheds: Characteristics & Delineation

Watersheds 

Lecture 3

Hydro-35

Precipitation/IDF Curves

Precipitation/Frequency

Lecture 4

3

Hyetographs/Hydrographs

Hydrograph-Superposition

Lecture 5

3/2

Time of Concentration/Manning’s Equation

Time of Concentration and Manning’s Equation

Lecture 6

3 

Peak Flows (Rational Method)

Storm Drainage Systems

Rational Method

 Info on Storm Drainage Sysems (Project 2):

Lecture 7

TR-55

Peak Flows (TR-55 Method; Part 1) includes NRCS Soil Site Information

TR-55 (Chapters 2 and 4)   

Lecture 8

TR-55 

Peak Flows (TR-55 Method; Part 2)

TR-55 (Ch 5)

Lecture 9

 

Detention Basins (Info needed to Route)

Discharge Ratings Curve (Orifice and Weir)

Lecture10

 

Detention Basins (Routing)

Detention Basin Routing 

Lecture 11

 

Stormwater Pollution Prevention Control Plans 

None

 

 

Final Exam Project

Reference Materials:  TR-55; Hydro-35; TP-40

Other Hydrograph Info: Hydrographs: Baseflows and Synthesis Hydrograph Synthesis HW   

Storm Drainage Systems (Background Info for Project 2)

NYS Construction Stormwater Toolbox (SPDES, Blue book, Stormwater Mgmnt Design Manual)

Hydrocad:  https://www.hydrocad.net/tr-55.htm

Detention Design (CA): https://dot.ca.gov/-/media/dot-media/programs/design/documents/4_dg-detention-basins_ada.pdf

River Runner: https://river-runner.samlearner.com/

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Last Modified : January 21, 2026