HY8:Getting Started

HY-8 automates culvert hydraulic computations. As a result, a number of essential features that make culvert analysis and design easier.

HY-8 enables users to analyze:

• The performance of culverts

• Multiple culvert barrels at a single crossing as well as multiple crossings

• Roadway overtopping at the crossing and

• Develop report documentation in the form of performance tables, graphs, and key information regarding the input variables

New to HY-8 is the ability to define multiple crossings within a single project. A crossing is defined by 1 to 6 culverts, where each culvert may consist of multiple barrels. In previous versions this defined the entire project. However, with HY-8 any number of projects may be defined within the same project. The diagram below illustrates the hierarchy of a HY-8 project.

Within a project new crossings can be created and then for each crossing up to six culverts can be defined.

The Microsoft Virtual Map Locator tool has been included within HY-8 so that a roadway map or aerial photograph can be displayed and culvert crossing locations mapped as shown below.

File:HY8image49.jpg

After defining the culvert properties, the analysis, including overtopping of the roadway, is completed and the performance output can be evaluated, graphed, and summarized in reports. A sample of the first output screen is shown below.

File:HY8image48.jpg

This is the general work flow of a HY-8 project. The rest of this help file document provides more detailed information about data input, analysis, and reporting.