Iowa DOT Annual Exceedence-Probability Discharges Spreadsheet - Version 1.00
Iowa DOT AEPD Spreadsheet for calculation of
Annual Exceedence-Probability Discharges per USGS Reports 2013-5086, 00-4233
Iowa DOT Bridge Backwater Program - Version 3.0
Software 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 3.0
Software 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.