Drainage Open Drain

This layer shows location of drainage open drains within the Metropolitan Region and is provided for information only. An Open drain is defined as a link in the drainage network. It includes different types of table drains, swale, and living stream etc. It can be owned by Main Roads WA or others. Data dictionary: ─────────────────┬─────────────────┬──────┬───────────────────────────────────────────────────────────────────────────────────────── Field │Alias │Type │Description ─────────────────┼─────────────────┼──────┼───────────────────────────────────────────────────────────────────────────────────────── Pipe_No │Pipe No │String│“Road_No” & ”.“ & Unique Database Number e.g. H015.569 ─────────────────┼─────────────────┼──────┼───────────────────────────────────────────────────────────────────────────────────────── Asset_Owner │Asset Owner │String│Owner of the asset e.g. Main Roads ─────────────────┼─────────────────┼──────┼───────────────────────────────────────────────────────────────────────────────────────── Road_No │Road No │String│MRWA Road Number ─────────────────┼─────────────────┼──────┼───────────────────────────────────────────────────────────────────────────────────────── Asset_Status │Asset status │String│Functionality of asset (Operational or Non-operational ─────────────────┼─────────────────┼──────┼───────────────────────────────────────────────────────────────────────────────────────── Data_Status │Data Status │String│Field survey verification e.g. Verified / Asset Captured via Desktop only ─────────────────┼─────────────────┼──────┼───────────────────────────────────────────────────────────────────────────────────────── Pipe_Type │Pipe Type │String│Pipe Type (Open Drain) ─────────────────┼─────────────────┼──────┼───────────────────────────────────────────────────────────────────────────────────────── Length │Pipe Length │Double│Pipe/Open drain section length in metres ─────────────────┼─────────────────┼──────┼───────────────────────────────────────────────────────────────────────────────────────── Diameter_Width │Diameter/Width │Long │Pipe/Open drain Diameter or Width if a culvert or non-circular in mm ─────────────────┼─────────────────┼──────┼───────────────────────────────────────────────────────────────────────────────────────── Up_IL │Upstream Invert │Double│Upstream end of pipe/open drain Invert Level in metres ─────────────────┼─────────────────┼──────┼───────────────────────────────────────────────────────────────────────────────────────── Dn_IL │Downstream Invert│Double│Downstream end of pipe/open drain Invert Level in metres ─────────────────┼─────────────────┼──────┼───────────────────────────────────────────────────────────────────────────────────────── Mapping_Comments │Mapping Comments │String│Any additional comments that relate to this pipe/open drain section including assumptions ─────────────────┼─────────────────┼──────┼───────────────────────────────────────────────────────────────────────────────────────── Confidence_Rating│Confidence Rating│String│A confidence level assigned based on the source data used to digitise the feature ─────────────────┴─────────────────┴──────┴───────────────────────────────────────────────────────────────────────────────────────── Disclaimer: 1. Please note that Main Roads WA drainage data is provided for information only and the data may be inaccurate, incomplete or out-of-date. Please use as a reference only and verification is to be undertaken on site. 2. Confidence Rating has been assigned to individual assets to provide an indication of the accuracy of the data. However please note that this is only an estimated rating which should be used as a reference only. 3. Asset Owner – Please note that Main Roads WA drainage data includes multiple organisations’ interface drainage and, as a result, the ‘Asset Owner’ attribute is only to be used as a reference only as it may be inaccurate and should not be referred to as the source of truth. 4. Asset Types: a. Interfacing Structures i. Note that the drainage data includes interface points between Main Roads WA drainage structures and structures owned by other asset owners. However not all assets owned by other asset owners have been included. Please seek clarification from the respective asset owners if required. b. Ghost Link i. Ghost link can be used to represent an interfacing drainage network not owned by Main Roads WA. These are commonly used to simplify complex networks located downstream on route to the ultimate stormwater outlet destination.