Iowa Department of Transportation
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Final bridge design software

Disclaimer: This software is intended for use by consultants working for the Office of Bridges and Structures in their development of projects for the Iowa Department of Transportation. Any other use is at the sole discretion of the user. The Iowa Department of Transportation makes the software available "AS IS" and assumes no liability nor makes any warranty of any kind, including warranties of noninfringement, fitness or merchantability whether expressed or implied, to the accuracy or functionality of this software. By downloading any files, you are agreeing to this disclaimer.

The Office of Bridges and Structures will only support those persons using this software in connection with Iowa Department of Transportation related business.


Iowa DOT Rebar Program

This Visual Basic® application provides rebar development and splice lengths for tension bars per AASHTO LRFD code.

Rebar lengths (200 KB)

Iowa DOT Elevation Program

This spreadsheet allows the user to determine top of slab elevations, beam line haunch elevations and haunches for straight, constant width PPCB bridges.

Elevations for PPCB Excel icon (651 KB)

Iowa DOT Pier Live Load Program

This spreadsheet allows the user to determine live load beam reactions to a pier cap for varying transverse live load positions and varying numbers of lanes loaded per AASHTO LRFD code.

Pier live load Excel icon (721 KB)

Iowa DOT Cost Estimate Program

This spreadsheet allows the user to develop a project cost estimate using Iowa DOT bid items and average unit price.  Bid items from a BIAS 2000 project file can be used.

Prepare cost estimate Excel icon (1.11 MB)


The programs are based on Visual Basic® 6.0 and Microsoft® Office Excel® 2003.
Please contact Michael.Nop@dot.iowa.gov with questions on these programs.