Hydrology & Hydraulic Tools (Version 4.0 - Updated April 2008) 

The newest version of Hydraulic Tools has the ability to model Structural Plate culverts as well as BEBO and CON/SPAN culverts.  Developed by Don Chase, Ph.D of the University of Dayton Hydraulics Laboratory, the Hydraulic Tools program uses the Federal Highway Administration’s HDS5 procedures to determine inlet and outlet control depths for these structures. Results from research conducted by Dr. Chase are incorporated into this program, as well as used by the U.S. Army Corps of Engineers’ HEC-RAS program.

Download Hydraulic Tools v.4.0 (9.0 MB file size).

HEC-RAS 

The Army Corps of Engineers’ Hydraulic Engineering Center (HEC) has developed the HEC-RAS software program to model natural streams and structures that are built along them. Users are able to specifically model Structural Plate structures as culverts using the "culvert method." In the "culvert method," structural plate shapes can be selected from a drop-down menu box.

Download the latest version of HEC-RAS from the US Army Corps of Engineers website.

HY-8 Culvert Analysis

The HY-8 Culvert Analysis developed by the Federal Highway Administration automates the design methods described in FHWA publications HDS-5, "Hydraulic Design of Highway Culverts," HEC-14, "Hydraulic Design of Energy Dissipaters for Culverts and Channels," and HEC-19, "Hydrology."

Download HY-8 from the FHWA website