Event Details
Harlan Iowa
C.G. Therkildsen Activity Center
706 Victoria Street
Harlan, IA 51537
March 31, 2026
Sign In/Registration begins at 8:00 am
Workshop begins at 8:30 am
6 Credit Hours
Event Contact
Description
The workshop will cover the U.S. Geological Survey (USGS) StreamStats program for estimating design discharges for sizing bridges and culverts. It will also go over the use of the Iowa Department of Transportation (DOT) Annual Exceedance-Probability Discharges (AEPD) spreadsheet for calculating and comparing peak discharges using other methodologies. In addition, the workshop will review the Iowa DOT Culvert program and Bridge Backwater program with example problems.
Why Attend?
This workshop will be beneficial for anyone working with the Iowa DOT AEPD spreadsheet, the Iowa DOT Bridge Backwater Program, the Iowa DOT Culvert Program, or the USGS StreamStats software.
Attendance Requirements
This workshop is computer based. Attendees are required to bring their own device capable of running the software (acquired at the link below) being discussed. This software will need to be pre-loaded (we can’t do this on-site) and can be found at this link: https://iowadot.gov/bridge/Automation-Tools/Preliminary-Design-Software. Two attendees from the same agency can share a computer if desired. The computers should be fully charged upon arrival, but we will do our best to provide for recharging during breaks and lunch.
If supplying a computer is an attendance hardship, please contact Keith Knapp (kknapp@iastate.edu) for the potential of a loaner from LTAP.
Attendance Limitations
Due to the requirements of the workshops, we are currently, limiting each agency to 2 attendees per location (they can share a computer) in order to serve as many agencies as possible at the training. However, if you would like additional staff from your agency to attend, please email Keith Knapp (kknapp@iastate.edu), and they can be added to a waiting list if we are not at capacity or decide to add another date.
Registration is on a first-come/first-served basis and will close when the spaces indicated on the registration page are filled. Registration is required no later than 7 days before each workshop date.
Tentative Workshop Agenda
| Time | Event Details |
|---|---|
| 8:00 am | Registration |
| 8:30 am – Noon | Basic Principles of Bridge and Culvert Structure Selection (Rules of Thumb) Bridge and Culvert Concept Development
|
| Noon | Lunch |
| 1:00 pm – 4:30 pm | Example Problem #3
Example Problem #4
|
| 4:30 pm | Adjourn |
For More Information
If you have questions about workshop content, contact LTAP Director Keith Knapp at 515-294-8817 or kknapp@iastate.edu.