DSE is the custodian of the state-wide collation of flood related data outside the metropolitan area that has been captured, and/or developed, through a number of flood risk assessment investigations and studies.

The information is stored as a series of GIS layers, collectively known as the Victorian Flood Data (VFD) dataset, at the DSE Traralgon Office. The VFD dataset is the reference point for all users looking for the most up-to-date flood information.

All datasets require maintenance. New data is added, old data modified and alterations of the data structure implemented. CMAs are responsible for ensuring that the data within their areas of responsibility is maintained and updated with new information as it becomes available.

Such information may arise through:

• flood-related studies
• new or revised survey of flood extents and levels
• new flood information becoming available.

VFD Update Specification

The document below provides detailed specifications for the modification and update of spatial data and associated attributes in the Victorian Flood Database.

This document will be updated from time to time and CMAs and their agents should ensure the most up-to-date version is used. CMAs should direct consultants to download this specification prior to commencing a new study.

VFD Update Specification (PDF~144kB)

Reliability and Floodway Delineation

Consultants will find the following two documents of considerable assistance in the determination of what reliability to assign to various linework being captured to the VFD datasets and what should be captured to the FLOODWAY layer.

Guidelines for Assessing Reliability (PDF~44kB)Advisory Notes for Delineating Floodways (PDF~98kB)

Data Structure

Metadata, developed to DSE standards, exist for each of the VFD spatial datasets. This provides dataset design details including the specific fields and attribute codes within each layer together with details on associated look-up tables.

All data supplied to update the VFD datasets must adhere strictly to the data design parameters outlined in the following metadata documents.

CONTOUR_{N}_ARI (PDF~16kB)EXTENT_100Y_ARI (PDF~32kB)EXTENT_{N}Y_ARI (PDF~16kB)EXTENT_PMF (PDF~16kB)FLOOD_STRUCTURE (PDF~15kB)FLOODWAY (PDF~38kB)FLOW_DIRECTION (PDF~14kB)HISTORIC_EXTENT_9999 (PDF~16kB)HISTORIC_EXTENT_{YYYY} (PDF~16kB)HISTORIC_HEIGHT_{YYYY} (PDF~16kB)HISTORIC_HEIGHT_POINT (PDF~16kB)LEVEE (PDF~15kB)LEVEE_SPOTHEIGHT (PDF~14kB)RUNNING_DISTANCE (PDF~16kB)