Administrative Information

Course Co-coordinators: Leila Ostadrahimi and Julia Slaughter 

Dates:  Monday,  —  Friday,  

Pre-test and Post-test Requirements

Students are requested to bring their USACE laptop and CAC card as the pre-test and post-test for the course must be completed in class from the ELLC through Microsoft Teams channel 098, 26-01; Davis, CA; 2-6FEB2026 | TDL-CECG-HRT-LI-ULC_PROSPECT_2-10_FEB_2026 | Microsoft Teams

ULC MS Teams Help: If you have any questions or concerns, please contact the ULC Course Manager/Training Technician team. 

Discourse for Reporting Bugs and Requesting Help

Request help or report bugs here:   https://discourse.hecdev.net/c/hec-ressim/17

You will need to Sign Up to request an account before you can enter new topics or add comments.

Course Materials

Downloadable Course Materials 

If your USACE laptop does not contain a working version of the 7-Zip software program (used to unzip files and folders) please let your course administrator know, or contact your ACE-IT or IT Administrator to install 7-Zip on your computer.

Download Lectures

Download Workshops

USACE can access class recordings here (or request access): https://dod.teams.microsoft.us/l/channel/19%3Adod%3Ae6bf428d85c543e1b5c9c7e1f5b0b080%40thread.tacv2/Training%20Videos%20and%20Recordings?groupId=c6ea561e-c289-4651-913e-baa9b4ba80ec&tenantId=fc4d76ba-f17c-4c50-b9a7-8f3163d27582

Links to Download HEC-ResSim pre-release Version 4.1.0

Link to download HEC-ResSim (v4.1.0.1-beta) class software as an executable: https://drive.hecdev.net/share/cmC3zyLj

(instructions for downloading and unzipping the executable: FY26 How to download an executable file from HEC Drive)

Lectures

In previous years the Course Manual was printed and provided to the students upon arriving in the classroom in Davis, CA. However, in response to end-of-course student critiques and reducing HEC's carbon footprint, printed course manuals are no longer provided to students. If printed lectures slides are desired (e.g., for notetaking purposes), students are encouraged to print and bring their own copy to class. Lecture presentations can be downloaded in advance of the first day of class by clicking the link provided in the Course Materials section of this page, or individually from the agenda on this page.

Workshops

In order to complete workshops the Reservoir Regulation Manual will be needed. The zipped workshop documents provided in the Course Materials section include the manual. Computers in the classroom are provided for the students to work in groups to complete the course workshops, or you can copy the files (software, watersheds, instructions) to your laptop and perform the workshops there.

Note: If working on the workshops on your personal computer, before you begin any of the workshops create a folder named "Class" in OSDisk (C:). Many of the workshops have instructions referring to specific file paths so this step is necessary to be able to finish the workshops properly. (Or copy the files to another location and translate any instructions concerning the C:/Class/ directory accordingly).

The workshop instructions are provided online. Please select the desired workshop link below. Each workshop instruction page contains the starting workshop zipped watershed and required data files. The required datafiles can also be downloaded from the link provided in the Course Materials section of this page, or from the individual workshop pages.

All files needed for completing the workshops can be downloaded from the individual pages identified in the table. A pre-release version of HEC-ResSim will be used in this class. Select the appropriate workshop to obtain copies of the starting workshop watershed, datafiles required for the workshop and the workshop solution watershed. (Note: solution watersheds will be made available at a later time).

Course Agenda


TimeUnitTypeModuleInstructorsClass Materials
Monday, February 02, 2026
8:00-9:00-IntroCourse Introductions and Pre Course TestOstadrahimi, SlaughterPre-test via MS Teams
9:00-9:451.1Lecture 1Simulating Reservoir SystemsWalsh
9:45-10:00Break
10:00-10:301.2Lecture 2Introduction to HEC-ResSimOstadrahimi
10:30-11:001.3Lecture 3Developing a Watershed SchematicOstadrahimi
11:00-11:301.4Lecture 4Reservoir Networks - Modeling the River SystemO'Connell
11:30-12:30Lunch
12:30-13:401.5Workshop 1Watershed Setup and Reservoir Network Ostadrahimi, Walsh
13:40-14:051.6Lecture 5

Reservoir Networks - Defining an Operation Scheme

(includes Basic Guide Curve Operations + intro to WCM)

O’Connell
14:05-14:20Break
14:20-15:051.7Lecture 6Alternatives and SimulationsWalsh
15:05-16:001.8Lecture 7Analysis of ResultsHeisman
16:00-17:001.9Workshop 2Basic Guide Curve OperationsHeisman, O'Connell

TimeUnitTypeModuleInstructorsClass Materials
Tuesday, February 03, 2026
8:00-9:002.1Lecture 8Routing MethodsBartles
9:00-10:002.2Lecture 9Basic Rule-Based Reservoir OperationHanbali
10:00-10:15Break




10:15-11:152.3Lecture 10Implementing Release RulesHeisman
11:15-11:452.4Workshop 3Creating At-Site Operating RulesHanbali, Walsh
11:45-13:15

 Class Photo and Ice Breaker Lunch - Woodstock's Pizza Davis, 238 G St, Davis, CA 95616

Map From HEC (609 2nd Street) to Woodstock's Pizza (238 G Street)


13:15-15:002.4Workshop 3Creating At-Site Operating Rules (cont'd)Hanbali, Walsh--
15:00-15:15Break
15:15-16:002.5Lecture 11Real-Time vs. Planning, ResSim Modeling ApproachesHanbali
16:00-17:002.6Lecture 12Operation for Downstream ObjectivesDeGeorge

TimeUnitTypeModuleInstructorsClass Materials
Wednesday, February 04, 2026
8:00-9:453.1Workshop 4Multiple Rules OperationDeGeorge, Ostadrahimi
9:45-10:00Break
10:00-11:003.2Lecture 13Emergency Gate Operation-Induced SurchargeO'Connell
11:00-11:453.3Workshop 5Induced Surcharge OperationO'Connell, Walsh
11:45-12:45Lunch
12:45-13:453.3Workshop 5Induced Surcharge Operation (cont'd)O'Connell, Walsh--
13:45-14:453.4Lecture 14System OperationHanbali
14:45-15:00Break
15:00-17:003.5Workshop 6System Operation WorkshopHanbali, Walsh

TimeUnitTypeModuleInstructorsClass Materials
Thursday, February 05, 2026
8:00-9:004.1Lecture 15Hydropower ConceptsWalsh
9:00-9:454.2Lecture 16Hydropower SimulationOstadrahimi
9:45-10:00Break
10:00-11:304.3Workshop 7

Hydropower

Heisman, Ostadrahimi
11:30-12:004.4Lecture 17If-Then-Else Rule BlocksO'Connell
12:00-13:00Lunch
13:00-13:454.5Lecture 18Scripting in ResSimHeisman
1:45-14:304.6Workshop 8If-Then-Else Rules and ScriptingO'Connell, Heisman
14:30-14:45Break
14:45-15:304.6Workshop 8If-Then-Else Rule Blocks and State Variables (cont'd)O'Connell, Heisman--
15:30-16:154.7Lecture 19Developing InflowsWalsh
16:15-17:004.8Lecture 20Compute Blocking and Modeling TechniquesHeisman

TimeUnitTypeModuleInstructorsClass Materials
Friday, February 06, 2026
8:00-8:30-TestPost Course TestOstadrahimi, SlaughterPost-test via MS Teams 
8:30-10:005.1Workshop 9Tying It All TogetherHanbali, Ostadrahimi
10:00-10:15Break
10:15-11:005.2Lecture 21Advanced FeaturesO'Connell
11:00-11:455.3Lecture 22Water Quality DemoOstadrahimi

Live Software Demo, WQ_ProspectFY26.7z

11:45-12:15-ClosingCritique & ClosingOstadrahimi, Slaughter

References

Modeling Help

Useful Companion Software for building HEC-ResSim models:

Scripting Resources

Other Classes

Guidance