|Scour Technology | Bridge Hydraulics | Culvert Hydraulics | Highway Drainage | Hydrology | Environmental Hydraulics|
|FHWA > Engineering > Hydraulics > Software > HY-8|
HY-8 7.3 builds on previous versions of the software and incorporates improvements from user feedback. HY-8 7.3 expands the capabilities to analyze special hydraulic situations and culvert shapes and includes an upgrade to the source code to make the program run more smoothly and efficiently.
HY-8 is a 32-bit program, but it is fully compatible with 32 and 64-bit Windows-based operating systems (XP, Vista, and Windows 7) and runs in 32-bit mode on these operating systems. When installing HY-8, make sure you have permissions on your computer to install programs (usually this requires administrator permissions or a username and password for an administrator account). If you do not have administrator permissions on your account, you need to right-click on the installation program and select the "Run as Administrator" option if running Windows Vista or Windows 7. Windows XP users should login to an account that allows you to install software before installing HY-8.
PDF files can be viewed with the Acrobat® Reader®