Preliminary bridge design softwareDisclaimer: 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 Annual Exceedence-Probability Discharges Spreadsheet - Version 1.00Iowa DOT AEPD Spreadsheet for calculation of Annual Exceedence-Probability Discharges per USGS Reports 2013-5086, 00-4233 and 87-4132.
- Iowa DOT AEPD Spreadsheet
- AEPD Spreadsheet usage guide
- Tables 1 and 4 from USGS Report 2013-5086
- Table 3 from USGS Report 2013-5086
Iowa DOT Bridge Backwater Program - Version 3.0Software written by LaDon Jones, Digital Control Inc, under Iowa Highway Research Board Project TR-476, "PCVAL: A Computer Program for Valley Stage-Discharge Curves and Bridge Backwater Calculations."
Iowa DOT Culvert Program - Version 3.0Software written by LaDon Jones, Digital Control Inc., under Iowa Highway Research Board Project TR-504, "A Computer Program for the Hydraulic Design of Culverts."
This version was updated in English only.