Design Length of Steel H-Piles for Iowa Standard Bridge Designs

Illustration of an h-pile in soil


The training class focuses on designing the length of steel H-pile needed for standard bridge designs in Iowa. The class considers the following:

  • J- and H-standard bridges
  • Pile lengths for integral abutments and pile bents
  • Various soil types for assumed borings with assumed blow counts
  • Consideration of friction and end bearing and the soil charts
  • Consideration of scour
  • Consideration of downdrag
  • Consideration of setup in cohesive soil
  • Effect of construction control method on design (Modified ENR Formula and WEAP)

The class leads participants through four different problems in order to demonstrate the design process. Participants will work at a computer using a spreadsheet setup to facilitate the design process. The class will receive handouts detailing the examples and spreadsheet entry along with hand calculations. The class is 3–4 hours in length.

Note: The class does not cover the Modified ENR formula or WEAP itself.

Class Times

Registration begins at 8:00 am.

Class begins at 8:30 am.

Class ends approximately at 11:30 am, followed by lunch.

Who Should Attend?

County engineers or staff involved in calculations used to determine piling design length

Highly Qualified Instructor

Michael Nop, Transportation Engineer Specialist, Iowa Department of Transportation


Please contact Paul Albritton, Iowa LTAP, 515-294-1231,