Drainage Headwall Locations in Western Australia

This layer shows the location of drainage headwalls, which are retaining walls at stormwater pipe inlets or outlets, within the Metropolitan Region of Western Australia. The dataset includes attributes such as Headwall_No, Asset_Owner, Road_No, Data_Status, Mapping_Comments, and Confidence_Rating. It is provided by Main Roads Western Australia for reference only.

Use Cases

• Map Headwall_No locations by Road_No to inventory stormwater infrastructure assets.
• Analyze Data_Status and Confidence_Rating fields to prioritize field verification efforts for drainage assets.
• Filter records by Asset_Owner to identify headwalls potentially owned by Main Roads WA versus other organizations.

Strengths

• Includes a Confidence_Rating field providing an estimated accuracy level for each asset.
• Contains specific attribution fields like Asset_Owner and Road_No for organizational and spatial reference.
• Provided by Main Roads Western Australia, the authoritative road and transport agency for the region.

Limitations

• The data may be inaccurate, incomplete, or out-of-date, as stated in the disclaimer.
• The Asset_Owner attribute is noted as potentially inaccurate and should not be used as a source of truth.
• The dataset's temporal coverage and total number of records (rows) are unknown.

Provenance

Source

Main Roads Western Australia

Collection Method

Field survey and desktop capture, as indicated by the Data_Status field.

Time Range

null

Freshness

null

Geography

Metropolitan Region of Western Australia